| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 081478000 | Work engaging portion pivotally or rotatably connected to handle | 80 |
| 20090019975 | TORQUE WRENCH FOR USE WITH GOLF CLUB - A torque wrench for a golf club includes a body and a handle. The body has a notch formed therein with an interface for engaging a geometrically-shaped head of a mechanical fastener. The handle includes a free end and an attached end, the latter of which is pivotably connected to the body by a hinge. The handle is movable between a stowed position and a deployed position. When the handle is in the stowed position, the free end of the handle abuts the body and the torque wrench has a generally disc-like shape. | 01-22-2009 |
| 20090044668 | Torque device for use in tools - A torque device for use in tools comprises a tubular member; a bit receiver axially received at the front end of the tubular member and its front end may couple with tools; a shank inserted at the rear end of the tubular member and including a resilient element fitted thereon, and including a receiving chamber formed at the rear end thereof for receiving a driving tool, and a selector mechanism defined between the shank and the bit receiver; a fitting sleeve fitted on the shank for biasing against the resilient element and including inner threads arranged on the inner wall thereof, between the fitting sleeve and the tubular member being provided with a guiding mechanism; an adjusting member fitted at the rear end of the shank including outer threads for screwing with the inner threads of the fitting sleeve, and between the adjusting member and the tubular member being fixed a confining mechanism. | 02-19-2009 |
| 20090320654 | TORQUE WRENCH WHOSE TORQUE VALUES CAN BE ADJUSTED EASILY AND QUICKLY - A torque wrench includes an operation bar having a mounting sleeve, a hollow handle having an inner wall provided with a first toothed portion and a plurality of positioning grooves, and an adjusting unit including an adjusting knob movable relative the handle and having an outer wall provided with a second toothed portion detachably engaged with the first toothed portion of the handle and a positioning block detachably locked in one of the positioning grooves of the handle. Thus, the adjusting knob is initially pulled outwardly relative to the mounting sleeve and the linking rod and is then rotatable relative to the handle so as to adjust the torque values of the torque wrench. | 12-31-2009 |
| 20100269646 | ANGLE-HEAD SCREWDRIVING TOOL INCORPORATING A TORQUE SENSOR MOUNTED ON THE OUTPUT SHAFT, AND CORRESPONDING TRANSMISSION MODULE - A screwdriving tool is provided, which includes a drive shaft; an angle head having an output shaft whose axis of rotation is approximately orthogonal to the axis of the drive shaft; a transmission connecting the drive shaft to the output shaft; and at least one torque sensor built into the output shaft. The tool transmission includes at least one intermediate gear whose axis is appropriately parallel to the output shaft and which engages with a gear designed to turn the output shaft, and at least one bevel coupling connecting, directly or indirectly, the drive shaft to the intermediate gear or gears. | 10-28-2010 |
| 20110048182 | TORQUE LIMITING SOCKET AND METHOD OF USING SAME - In a preferred embodiment, a driver socket is configured to provide a visual indicator on a portion of a locknut upon application of a predetermined torque to the driver socket relative to the locknut. The driver socket has a member which is positioned proximate to the first end, with a portion thereof protruding into an aperture of the driver socket. The member is configured to engage a drive configuration of a locknut in order to apply nut torque to the locknut upon rotation of the drive socket and to form a mark on the drive configuration of the locknut in order to provide a visual indicator on the locknut that the locknut has been subjected to the desired torque during initial assembly. The driver socket is preferably attached to a ratchet arm of a fastening tool which provides a mechanical advantage in applying the desired torque. | 03-03-2011 |
| 20110154961 | TORQUE WRENCH - To make improvements in torque wrenches with a torque limiter that uses a cam mechanism and to provide a torque wrench that realizes more stable operation and is capable of highly precise tightening. In a torque wrench with a torque limiter that uses a cam mechanism, a solid columnar roller member | 06-30-2011 |
| 20110185862 | VIRTUAL CONCENTRIC MANUAL TORQUE WRENCH WITH OFF-AXIS COMPENSATION - A wrench for applying torque to a fastener that may eliminate or reduce variations associated with off-axis torque application and/or application of force on the handle at a location other than the load position. | 08-04-2011 |
| 20120011971 | TORQUE WRENCH - A torque wrench equipped with a cam-type torque detection mechanism is provided which is capable of detecting a torque with high accuracy, providing a non-unusual-feeling of handle operation after torque has been detected, and enabling tightening of fastened members such as bolts with safety. In a torque wrench equipped with the cam-type torque detection mechanism, a cam portion | 01-19-2012 |
| 20120297939 | Handle-Driven Torque Transfer Wrench having Pivotable Head - Disclosed is a torque transfer device, comprising a body section, a rotary head section and an internal driveshaft within the body section for coupling rotational input through the body to the head section at an angle with respect to the drive direction. The body section comprises a rotational drive input that connects to an internal driveshaft. The body section terminates, allowing the driveshaft to continue into a universal pivot joint, which further connects to the head section having an internal rotary ratchet transmission and socket-accepting inner portion. As the input is rotated, the driveshaft rotates the ratchet head, providing a tool that allows directional variation with regard to input and output torque transmission. The universal joint allows the head section to be further rotated with respect to the body section for improved torque input onto fastener heads in enclosed or shrouded locations. | 11-29-2012 |
| 20130152747 | POLYAXIAL RATCHET TOOL - A polyaxial tool, including an elongate body defining a first end, a second and a longitudinal axis extending therebetween; the elongate body defining a cavity at the first end; a plurality of arcuate gear teeth circumferentially arranged in the cavity and movable with respect to the elongate body; a socket coupled to the housing and coaxial with the plurality of gear teeth; and a handle coupled to the second end, where an angular position of at least one of the elongate body and handle is adjustable with respect to the plurality of gear teeth. | 06-20-2013 |
| 20140053695 | Variable Gear Ratio Ratchet - This invention relates to a fastener driving device including a variable ratio gear mechanism that enables the ratio of the rotation of the handle to the rotation of a driving bit extending from the handle to be varied to allow the bit to rotate at different speeds from the handle. The device includes a gear mechanism disposed within a housing for the device that includes a locking member. The locking member can be engaged with the gear mechanism to lock the gear mechanism in a configuration for a 1:1 gear ratio. The locking member can be moved with regard to the gear mechanism to provide an increased gear ratio for the gear mechanism when desired. | 02-27-2014 |
| 20140069243 | Torque Wrench - A torque wrench includes a hollow body, a clutch mechanism, a force-applying member, and at least one driving arm. The clutch mechanism is mounted in the hollow body. The force-applying member is pivotally mounted in the hollow body and has a first end against the clutch mechanism. The force-applying member also has a second end for the driving arm coaxially mounted onto. Thus, the torque wrench can take the overall length of the force-applying member and the driving arm as a first moment arm, and the torque wrench is easy to storage due to the detachable driving arm. In addition, the torque wrench can be increased in length by mounting a driving arm which is a plurality of rods detachably assembled with each other. | 03-13-2014 |
| 20140202292 | TORQUE WRENCH WITH FUNCTIONAL LOCK - A torque wrench with functional lock includes a hollow main shaft, a tool member, an adjustable grip, a torque-adjustment elastic member, a clutch device, and a functional lock. The locking ring axially moves along the main shaft between a locked position and an unlocked position. When the locking ring is in the locked position, the rotation of the adjustable grip against the hollow main shaft is limited. When the locking ring is in the unlocked position, the rotation of the adjustable grip against the hollow main shaft is allowed, whereby the torque is adjusted. Therein, a percussion sound is produced when the locking ring is switched between the locked position and the unlocked position. | 07-24-2014 |
| 20140260836 | RATCHETING TORQUE WRENCH - A new ratchet wrench has a slide gear that is laterally enclosed within the head. Shoulders on the slide gear are curved and outwardly flanked by a single recess. The distance from the top of the shoulder to the base of the recess is no more than half the difference between the outside diameter and the root diameter of the teeth on the ratchet. Those teeth have essentially planar faces, top lands that traverse at least one quarter of the pitch, and bottom lands that extend continuously from the faces, have essentially constant radius, and traverse at least one quarter of the pitch. A pin projects out the back and enables a user to shift the wrench between clockwise and counterclockwise ratcheting. All cavities for the ratcheting assembly are recessed from the face in an arrangement that can be machined in a single set-up on a computer-controlled vertical mill. | 09-18-2014 |
| 20140352503 | COLLAPSIBLE TORQUE WRENCH - A collapsible torque wrench includes: a shank having a drive head at a front end and two pivoted ends at a rear end; a connection rod, a front end of which being pivotally connected with the first pivoted end; a housing having a tubular body and a casing fixedly disposed on one side of the tubular body, the connection rod being relatively slidably fitted in the tubular body; a torque adjustment mechanism being mounted in the tubular body and including a fixing block, the fixing block being mounted in the tubular body by at least two pins; and a stop member received in the casing. A front end of the stop member is pivotally connected with the second pivoted end. The fixing block is easily demounted from the tubular body for replacement. | 12-04-2014 |
| 20150068370 | Multiple Slope or Multiple or Multiple Offset Tool Mechanism - Use of multiple-slope and/or multiple-offset mechanism or equivalent to address the issues with current mechanical clickers that have single-slope spring mechanism. The varying-slope can be a continuously varying-slope non-linear spring, or a combination of discretely varying multiple-slope springs. This invention is useful for clicker type torque wrenches, clicker type torque screw drivers, beam type torque wrenches, beam type torque screw drivers and shock absorbers. The present invention is equally applicable to clickers that click in both the CW (clockwise) and CCW (counterclockwise) directions or clickers that click only in one direction. The invention is generally characterized by placing a non-linear spring or combination of springs in the tool body to achieve multiple slope operation rather than using one single slope spring. | 03-12-2015 |
| 20150354079 | TORQUE WRENCH HAVING IMPROVED WEAR PROPERTIES - A method for improving wear properties of a torque wrench includes electroplating one or more components of the torque wrench with zinc. In an aspect, one or more of an interior surface of a tube component, a surface of a secondary arm, a surface of a cam, and a surface of a pawl components may be electroplated with zinc. These components may interact to provide a click mechanism. For example, the pawl component may be seated between the secondary arm and the cam components, and the cam is adapted to move against a bias force when the secondary arm shifts the pawl in response to a preset torque level being achieved. The electroplated zinc layer provides a corrosion-resistant, softer and smoother surface for these components, and serves as a frictional reducer when the zinc oxidizes to form zinc oxide, which improves the accuracy life of the tool. | 12-10-2015 |
| 20160075005 | TORQUE LIMITING WRENCH FOR PLASTIC AND OTHER FITTINGS - A torque limiting wrench for tightening nuts on a fitting, and a jaw structure for the wrench. An exemplary embodiment of the wrench includes a handle structure, the jaw structure pivotably mounted to the handle for movement between a tightening position and a fully tightened position. A mechanism applies a force to hold the jaw structure in the tightening position, and allows the jaw to pivot to the fully tightened position when a pre-set torque limit is exceed. The jaw structure including a plurality of spaced teeth supported on a curved jaw arm and having a circumferential extent of less than one half the entire circumference of the nut to be tightened, so that the jaw structure can be engaged to the nut without requiring an axial movement from a first end of the nut toward a second end of the nut. | 03-17-2016 |
| 20160121465 | Variable Gear Ratio Ratchet - This invention relates to a fastener driving device including a variable ratio gear mechanism that enables the ratio of the rotation of the handle to the rotation of a driving bit extending from the handle to be varied to allow the bit to rotate at different speeds from the handle. The device includes a gear mechanism disposed within a housing for the device that includes a locking member. The locking member can be engaged with the gear mechanism to lock the gear mechanism in a configuration for a 1:1 gear ratio. The locking member can be moved with regard to the gear mechanism to provide an increased gear ratio for the gear mechanism when desired. | 05-05-2016 |
| 081479000 | With electric signal device | 51 |
| 20080314209 | Torque wrench with detection and display of torque - A torque wrench includes a handle, a wrenching unit, at least one torque sensor, and a torque display unit. The handle has an end forming a connection portion. The wrenching unit has an end forming a fitting portion, which is connectable to the connection portion of the handle and releasably secured thereto by a bolt so that the wrenching unit can be selectively secured to the handle or released from the handle for replacement. The torque sensor is mounted to the handle to detect deformation of the handle and generate a detection signal when the wrenching unit applies a torque to a workpiece. The torque display unit is coupled to a joint between the handle and the wrenching unit and includes a display processing circuit that is connected to the torque sensor to receive the detection signal from the torque sensor and further process and display a torque reading corresponding to the detection signal so that the reading of an actual torque that the wrenching unit provides can be immediately displayed to thereby realize a wrench that is capable of replacement of different wrenching units and displaying of reading of torque. | 12-25-2008 |
| 20090013837 | ELECTRONIC TENSION MEASURED SPANNER WITH A SLOT FOR CONNECTING A MEMORY DEVICE - An electronic tension measured spanner with a slot for connecting a memory device, comprise: a handle; a head extends from one end of the handle for engaging a screwing object; a display unit installed in the handle; a strain gauge installed in the head or the handle for measuring the tension in the operation of the spanner; the tension measured by the strain gauge will be transferred to the display unit for displaying; and a slot formed in the handle and electrically connected to the display unit. A memory device is insertable into the slot for receiving the data from the display unit. The slot is a USB slot. The head is one of an opened head, a ring and a socket driver. Another head is connected to another end of the handle. The memory device is a memory card or a flash disk. | 01-15-2009 |
| 20090071300 | Digital Beam Torque Wrench - A torque wrench includes a main beam having a distal end and a proximal end, a drive element disposed at the distal end of the main beam, a stationary beam having a distal end fixedly secured to the main beam at a first location on the main beam, and having a proximal end, and a displacement sensor assembly disposed at a second location associated with the main beam and with the stationary beam to detect an amount of displacement of the main beam relative to the stationary beam. The displacement sensor assembly includes an actuating element to produce a radiation signal and rigidly secured to one of the main beam or the stationary beam and an actuable element responsive to the radiation signal and rigidly secured to the other one of the main beam or the stationary beam. | 03-19-2009 |
| 20090107306 | ELECTRONIC TORQUE WRENCH HAVING A TRIP UNIT - An electronic torque wrench includes a tubular housing having a receiving space, a working unit having an abutment portion extending into the receiving space, a strain sensor provided in the working unit, and a trip unit disposed in the receiving space and including a cylinder having a chamber containing hydraulic fluid, a trip element disposed movably between the abutment portion and the cylinder and having a seat portion, and a control element connected to the cylinder for pressurizing or depressurizing the hydraulic fluid so as to permit the abutment portion to be seated on or to move away from a center of the seat portion. A central processor is connected electrically to the strain sensor and the control element, and controls the control element to depressurize the hydraulic fluid when an applied torque measured by the strain sensor is larger than a preset reference torque value. | 04-30-2009 |
| 20090249924 | Torque-Indicating Extensive Apparatus - A tool kit includes a handle, many bits and a torque-indicating extensive apparatus provided between the handle and a selected one of the bits. A torque-indicating extensive apparatus includes an extensive rod, at least one sensor and a display unit. The extensive rod includes a first bit-engaging section, a second bit-engaging section and a connective section formed between the first and second bit-engaging sections. The sensor is attached to extensive rod and used to sense a value of torque in the extensive rod and send a signal. The display unit is electrically connected to the sensor and used to show a reading of torque based on the signal. | 10-08-2009 |
| 20090260491 | MULTI-PINION GEAR DIGITAL BEAM TORQUE WRENCH - A digital torque wrench includes a position sensor assembly which measures the movement of a load beam with respect to an indicator beam to determine the torque being applied to a working element by the torque wrench. The position sensor assembly includes a first position sensor portion having multiple rotatable pinion gears coupled to a potentiometer, and includes a second position sensor portion having a rack gear that engages one of the pinion gears of the first position sensor portion. The first and second position sensor portions are attached to different ones of the load beam and the indicator beam so that at least one of the pinion gears rotates along the rack gear in response to force (torque) being applied through the load beam to the working element. Rotation of the pinion gears causes rotation of a potentiometer element, which produces a signal indicative of the relative displacement of the load beam with respect to the indicator beam. This displacement is then converted to a torque measurement and is displayed to a user via a display. The use of multiple pinion gears enables a high degree of resolution with respect to the torque measurements, while reducing the width profile of the torque wrench. | 10-22-2009 |
| 20090266205 | Torque-Indicating Wrench - A wrench includes a head, a strain-vulnerable unit, at least one sensor, a handle set and a display. The strain-vulnerable unit includes a first end attached to the head, a second end at an adequate distance from the head and an aperture defined in the second end. The sensor is attached to the second end of the strain-vulnerable unit for detecting strain in the second end of the strain-vulnerable unit and sending a signal. The handle set is connected to the strain-vulnerable unit. The display is provided on the handle set and electrically connected to the sensor. | 10-29-2009 |
| 20090266206 | WRENCH WITH ELECTRONIC TORQUE DISPLAY UNIT - A wrench with electronic torque display unit includes a torque adjustment mechanism which includes a sleeve, two gears, a rod and a movable tube, and a locking mechanism which includes a positioning cap, wherein the value of the torque to be output can be set by operating the adjustment mechanism by rotating the positioning cap. The pre-set value is displayed on the display screen so as to provide a wrench with convenient operation and precise feature. | 10-29-2009 |
| 20090288526 | HAND TOOL WITH WARNING EFFECT - The present invention provides a hand tool with warning effect. A torque sensor, a music player and a circuit device are disposed in a main body of the hand tool. The circuit device includes a processing unit and a warning sound generator. An operation torque detected by the torque sensor is transmitted to the processing unit. In the case that the value of the operation torque is within a set range, the processing unit shuts off the warning sound generator and the music player can play music for a user to listen to. Once the operation torque of the hand tool becomes greater than the set torque value, the processing unit turns on the warning sound generator to emit a warning signal to alert the user. | 11-26-2009 |
| 20100058901 | MONITORING TOOLS - Disclosed is a system for monitoring operation of a hand tool including an accelerometer coupled to the hand tool, a transmitter in data communication with the accelerometer, and a processor for receiving data from the transmitter and analyzing the data to detect an event associated with operation of the hand tool. | 03-11-2010 |
| 20100101381 | POWER SCREWDRIVER - The invention relates to a power screwdriver ( | 04-29-2010 |
| 20100147119 | SIGNALING TORQUE DRIVER AND METHOD - A torque wrench assembly includes a casing assembly, a click arm, a signaling assembly and a torque-limiting assembly. The casing assembly includes an inward projection. The click arm is disposed within the casing assembly. The click arm has a first end adapted to engage a fastener, and a second end. The click arm is movable between first and second positions. The signaling assembly is coupled to the click arm and configured to engage the casing assembly inward projection when the click arm is moved to the click arm second position whereby the signaling system emits at least one of an audible, tactile, and visual notification. The torque-limiting assembly is disposed within the casing and operably coupled to the click arm second end and configured to permit the click arm to move from the first position to the second positing when a predetermined amount of torque has been reached. | 06-17-2010 |
| 20100170370 | TORQUE TOOL DEVICE - An object is to provide a torque tool device which can expedite tightening operations using a torque tool without requiring any other manipulation than the tightening. The device is also capable of performing tightening operations consecutively by determining instantly whether the tightening has been adequately performed. | 07-08-2010 |
| 20100199816 | BOLT OR NUT TIGHTENING DEVICE - A bolt or nut tightening device has an outer shaft and an inner shaft rotatable in directions opposite to each other, the outer shaft having a reaction receiver projecting therefrom sideways, the inner shaft being provided with an engaging portion engageable with a bolt or nut to be tightened, the bolt or nut tightening device being provided on the outer shaft with a tightening torque measuring unit, which comprises a strain sensor, a circuit board, an indicator, a battery, and a case for accommodating the circuit board, the indicator and the battery, the case being attached to the outer shaft, projecting toward the same direction as the reaction receiver, and being so sized as to be hidden by a contour of the reaction receiver and so positioned as to be hidden behind the reaction receiver when seen from the forward end side of the engaging portion. | 08-12-2010 |
| 20100206141 | TORQUE WRENCH - [Problem to be Solved] The invention aims at ease of operation compatible with improved accuracy of measurement. | 08-19-2010 |
| 20100275747 | POWER TOOL AND A METHOD FOR USE OF THE POWER TOOL - A power tool includes an electric motor including a rotor and a stator, a torque sensor for measuring the torque value during tightening of rotatable fastening elements, and an operation control unit, integrated in or in communication with the power tool. The power tool has a device for preventing rotation of the rotor. A method for tightening rotatable fastening elements by use of the power tool is also disclosed. | 11-04-2010 |
| 20110100170 | ELECTRONIC TORQUE WRENCH WITH REPLACEABLE TORQUE SENSORS - An electronic torque wrench ( | 05-05-2011 |
| 20110107882 | TORQUE DETECTION DEVICE - A torque detection device includes an enclosure, at least one toque-strain bar, at least one adaptor, a coupler, at least one strain gauge, and a torque display unit. The toque-strain bar is enclosed by the enclosure and has opposite ends respectively forming coupling terminals for coupling with the adaptor and the coupler in either direction. The adaptor is connectable to a torque device, such as a hand tool, an electric tool, or a pneumatic tool. The coupler is connectable to a tool piece, such as a wrench socket. The strain gauge is directly mounted to the toque-strain bar to detect the value of a torque applied thereto and to convert the torque value into a torque value signal, which can be outputted in either wired or wireless manner. The torque display unit is mounted to the enclosure and receives the torque value signal from the stain gauge, whereby the torque display unit may perform displaying of torque value, alarming, and storage according to the torque value signal. | 05-12-2011 |
| 20110132157 | Electromechanical wrench - An electromechanical wrench has a housing that has a working end and a gripping end, with a driver positioned at the working end, and a handle positioned at the gripping end. The wrench further includes a click wrench emulator mechanism provided at the handle. A method of using an electromechanical wrench to secure a fastener using angular measurement without the need for establishing a zero reference point, and allowing for ratcheting, is also provided. A method of counting the number of fasteners secured by an electromechanical wrench during a wrenching job is further provided. | 06-09-2011 |
| 20110132158 | Digital Beam Torque Wrench with an Electronic Sensor - A torque wrench includes a main beam having a distal end and a proximal end, a drive element disposed at the distal end of the main beam, a stationary beam having a distal end fixedly secured to the main beam at a first location on the main beam, and having a proximal end, and a displacement sensor assembly disposed at a second location associated with the main beam and with the stationary beam to detect an amount of displacement of the main beam relative to the stationary beam. The displacement sensor assembly includes an actuating element secured to one of the main beam or the stationary beam and a sensor rigidly secured to the other one of the main beam or the stationary beam and responsive to the actuating element. An electronic component is configured to generate a torque measurement based on the generated electrical signal, and store at least one of the generated electrical signal and the torque measurement for a several positions of the main beam relative to the stationary beam. | 06-09-2011 |
| 20110162493 | RATCHETING DEVICE FOR AN ELECTRONIC TORQUE WRENCH - An electronic torque wrench including a wrench body, a wrench head configured to engage a workpiece, a first sensor producing a first output signal, that is proportional to an amount of torque being applied to the workpiece, a grip handle, a second sensor producing a second output signal that is proportional to an amount of rotation being applied to the workpiece, a user interface including an input device for inputting a preset torque value, and a processor for converting the first output signal into a current torque value, comparing the current torque value to the preset torque value, and converting the second output signal into a first angle value through which the workpiece has been rotated after the current torque value exceeds the preset torque value. | 07-07-2011 |
| 20110185863 | Torque Wrench and Method for Determining Rotational Angle of Torque Wrench - A torque wrench includes a wrench body, a torque sensor, an angle sensor, a gravity sensor and a processor. The wrench body can provide a torque to a workpiece. The torque sensor can sense whether the torque is greater than a predetermined torque value. The angle sensor can obtain a rotational angle value by measuring the rotation of the wrench body after the torque is greater than the predetermined torque value. The gravity sensor can sense the tilt angle of the wrench body. The processor is programmed to correct the rotational angle value according to the tilt angle of the wrench body. | 08-04-2011 |
| 20110185864 | SCREW TIGHTENING DIAGNOSTIC DEVICE AND ELECTRIC DRIVER - The present invention provides a screw tightening diagnostic device which can easily and reliably detect a state of incomplete screw tightening and can allow reliable screw tightening work to be performed. The screw tightening diagnostic device comprises rotational torque detection means for detecting that rotational torque occurring in a rotating shaft of an electric driver has reached a preset rotational torque within a predetermined time range past a minimum required screw-tightening time that has been set in advance according to the length of the screw being tightened, pressure force detection means for detecting that pressure force created by the electric driver pressing the screw when the screw is being tightened has reached a preset pressure force, and screw tightening diagnostic means for diagnosing that screw tightening has been performed in a normal manner when the rotational torque detection means detects that the preset rotational torque has been reached within the predetermined time range past the minimum required time and the pressure force detection means has detected the preset pressure force. | 08-04-2011 |
| 20110192261 | Wrench - A wrench includes a hollow handle, a driver, a battery base, an alert device, a switch and a force applying device. The driver includes a drive shaft and a drive head. The drive shaft is received in the hollow handle and pivotally connected to the inner wall of the hollow handle. The drive head is connected to the drive shaft and protrudes from the hollow handle. The switch electrically connects the battery base and the alert device. The switch includes a first contact and a second contact. The first contact is located on the drive shaft. The second contact is located on the inner wall of the hollow handle. The force applying device applies a predetermined force to the drive shaft to separate the first contact and the second contact. | 08-11-2011 |
| 20110283845 | Extensive Apparatus for a Wrench - An extensive apparatus includes a shaft, a sensor, a display, a sleeve and a shell. The sensor is attached to the shaft so that the sensor detects torque exerted on the shaft. The display is electrically connected to the sensor so that the value of the torque detected by the sensor is shown on the display. The sleeve includes a tunnel through which the shaft extends. The sleeve is connected to the shaft so that they can only rotate together. The shell is rotationally provided around the sleeve. The display is connected to the shell so that the display is rotational relative to the shaft and easily observable regardless of the shaft. | 11-24-2011 |
| 20110303054 | FASTENING APPARATUS WITH INTERCHANGEABLE PROGRAMMABLE INSERTS - An electronic apparatus for controlled fastening, comprises a body ( | 12-15-2011 |
| 20120006161 | WIRELESS TRANSMISSION TORQUE WRENCH WITH ANGULAR ORIENTATION CORRECTION - Disclosed is a torque wrench with wireless transmission function, including at least one wrench body having an end to which a tool head is coupled for coupling with a tool piece, such as wrench socket, for application of torque, at least one toque-strain bar, which is coupled to the tool head of the wrench body, at lest one torque sensor, which is mounted to the toque-strain bar to detect the value of the torque transmitted to the toque-strain bar, at least one angular position sensor, which is set inside the wrench body to detect a horizontal angle of the body and the tool head, at least one detection and processing circuit, which is arranged in the wrench body and connected to the torque sensor and the angular position sensor to convert detected torque and angle into digital torque and angle data for displaying or issuing an alarm and to transmit the torque and angle data in a bi-directional wireless manner, and at least one control receiver, which receives the torque and angle data from the detection and processing circuit for subsequent applications. | 01-12-2012 |
| 20120036970 | TORQUE MULTIPLIER - A torque multiplier includes a main body, a torque input shaft, at least one torque sensor, an angle sensor, and an information transmission circuit. The main body contains therein at least one gear train. The gear train has upper and lower ends respectively forming a torque input port and a torque output shaft. The torque output shaft is coupleable with a tool piece, such as a socket. The torque input shaft has an end fit into the torque input port and an opposite end coupleable with a torque device, such as a hand tool, an electrical tool, or a pneumatic tool. The torque device applies a torque input to the torque input shaft that in turn rotates the gear train to provide a multiplied torque output to the torque output shaft. The torque sensor is mounted to a surface of the torque output shaft of the gear train of the main body to detect the torque value of the torque output shaft and provide a torque value signal. At least one angle sensor mounted to the main body detects a horizontal angle of the main body and the torque output shaft and provides an angle value signal. The information transmission circuit is arranged inside the main body to transmit, in a wired or wireless fashion, the torque value signal and the angle value signal to at least one electronic device for storage, display or use. | 02-16-2012 |
| 20120067178 | ELECTRICAL TORSION WRENCH - An electrical torsion wrench includes a shank, an operational head and a handle respectively mounted to two opposite ends of the shank. The handle has a first abutment formed on a distal side and radially corresponding to an axis of the shank. A stick perpendicular extends from the first abutment. An electrical displayer is rotatably sleeved on the shank and axially adjacent to the handle for the operator to easily and clear read the operating torsion value in different visual angles. The electrical displayer has a second abutment formed on a distal side thereof and abutting against the first abutment. A curved groove is laterally defined in the second abutment for receiving the stick such that the rotary range of the electrical displayer is limited. | 03-22-2012 |
| 20120079923 | TORSION ASSEMBLY WITH WIRELESS DISPLAYERS FOR SIMULTANEOUSLY RECEIVING TORSION DATUM AND DISPLAYING THEREON - A torsion assembly includes a torsion tool and at least one wireless displayer for simultaneously receiving and displaying the torsion datum from the torsion tool. The torsion tool includes a seat disposed therein and a display module detachably received in the seat. The wireless displayer includes a base and a body rotatably mounted on the base. The base can be put on a desktop or adhered on a machine by a magnet. The body can wirelessly receive and shown the torsion datum from the first wireless transceiver that is disposed in the seat on the torsion tool. | 04-05-2012 |
| 20120132042 | MECHANICAL TORQUE WRENCH WITH AN ELECTRONIC SENSOR AND DISPLAY DEVICE - A mechanical torque wrench for engaging a workpiece, the torque wrench including a wrench body, a wrench head pivotably secured to the wrench body at a pivot joint and including a workpiece engaging portion and a bar extending therefrom, a hand grip, a set spring, a block disposed between a rear face of the bar and the set spring, an adjustment assembly for selecting a preset torque value, a resistive element producing a first output signal, a sensor producing a second output signal, and a processor for converting the first output signal into the preset torque value and converting the second output signal into an applied torque value. The application of a peak applied torque value to the workpiece causes the wrench head to pivot relative to the wrench body. | 05-31-2012 |
| 20120132043 | RATCHETING MECHANICAL TORQUE WRENCH WITH AN ELECTRONIC SENSOR AND DISPLAY DEVICE - A mechanical torque wrench for engaging a workpiece, including a wrench body, a wrench head with a workpiece engaging portion and a bar, the wrench head being pivotably secured to the wrench body, a set spring, a pawl disposed between the bar and the set spring, and a dial screw, wherein rotation of the dial screw in a first direction compresses the set spring. A resistive element is coupled to the dial screw and produces an output signal. A first sensor produces a first output signal that is proportional to an amount of rotation of the mechanical torque wrench. A processor converts the resistive element output signal into an equivalent torque value indicating a preset torque to be applied by and converts the first output signal into a first angle value. A user interface includes a display for displaying the equivalent torque value. The application of a torque greater than the preset torque causes the wrench head to pivot relative to the wrench body. | 05-31-2012 |
| 20120204686 | Wrench Extender With Torque Device - A wrench extender with a torque device comprises an elongated body to attach to a wrench; a handle at an end of the elongated body; a torque device mounted above where the elongated body and the handle meet, where the torque device indicates an amount of torque exerted by the wrench extender during use; a set of connection hooks fastened to the elongated body, where the set of connection hooks include a first connection hook and a second connection hook; the first connection hook is fastened at an opposite end of the elongated body from the handle, and the second connection hook is fastened to the elongated body between the first connection hook and the handle, wherein the set of connection hooks secure the wrench to the elongated body, and wherein the elongated body adds length to the wrench to allow the wrench to be used in confined spaces. | 08-16-2012 |
| 20120240735 | TORQUE WRENCH - A torque wrench includes a driving head, a hollow handle, compression unit, an adjustment unit, an index unit and a display unit. The driving head and the handle are pivotably connected to each other. The compression unit has a resilient member and an end piece which contacts the driving head. The adjustment unit adjusts the length of the resilient member to set the torque of the wrench. The index unit has a first index and a second index, both of which are moved with the movement of the adjustment unit. The movement of the first index is detected by the display unit and transferred into digits to display the value of the torque. The second index is cooperated with the marks of the scale member to display the value of the torque. | 09-27-2012 |
| 20120255404 | ELECTRONIC TORQUE WRENCH WITH A ROTATABLE DISPLAY UNIT - An electronic torque wrench includes a wrench head unit adapted to engage and turn a fastener, a tubular wrench body which includes a front tubular end fittingly engaged and secured with the wrench head unit, and an intermediate tubular segment having an access opening, a grip handle which is configured to securely grip a rear tubular end of the tubular wrench body, a mounting shell which is sleeved on the intermediate tubular segment, and which has an access hole communicated with the access opening, a housing sleeve sleeved on, and rotatable relative to the mounting shell about a lengthwise axis, and a display unit disposed on the housing sleeve to provide a display representing a torque measured by a strain gauge on the wrench head unit. By rotating the housing sleeve, the display unit can be adjusted to a desired angular position for being viewed easily by the user. | 10-11-2012 |
| 20120255405 | ELECTRONIC TORQUE WRENCH WITH A ROTATABLE DISPLAY UNIT - An electronic torque wrench a wrench head unit adapted to engage and turn a fastener, a tubular first wrench body securely engaged with the wrench head unit, a tubular second wrench body coupled and aligned with the first wrench body by a fitting member to permit rotation of the second wrench body relative to the first wrench body, a mounting shell sleeved on the second wrench body for mounting a display unit to provide a display representing a measured torque. By rotation of the second wrench body, the display unit can be adjusted to a desired angular position for being viewed easily by the user. | 10-11-2012 |
| 20120312132 | ELECTRONIC TORQUE APPARATUS EQIPPED WITH AN AUTOMATIC COMPENSATION DEVICE WITH OUTPUT TORQUE - An electronic torque apparatus equipped with an automatic compensation device with output torque includes an electronic torque wrench with a changeable drive head, a plurality of drive heads at varying lengths and an automatic compensation device in the electronic torque wrench with built-in output torque. One of the drive heads is selected to be installed on the electronic torque wrench as desired. Through the automatic compensation device, compensation is set and calculated according to the type or length of the drive head so that operation torque of the electronic torque wrench and preset target torque are equal to actual output torque of the electronic torque wrench. Thereby users can directly and instantly get the actual output torque on a display element without calculation or conversion through tables to improve reliability and usability. | 12-13-2012 |
| 20130291694 | Electronic Torque Wrench - A torque wrench for use in driving fasteners is provided. The wrench includes an electronics unit disposed within a body of the wrench that is capable of sensing and measuring the torque applied to a fastener by the wrench and providing an output of the level of torque to the user. The electronics unit is also disposed within a barrier in the body that isolates the unit from the exterior environment around the wrench. The data sensed by the electronics unit can be utilized to provide feedback to the user regarding the operation of the wrench, and to monitor the overall operation of the wrench for calibration purposes, among other functions. During use, the wrench can provide the user with visual, audible and tactile feedback regarding the operation of the device relative to stored maximum torque values stored in the electronics unit. | 11-07-2013 |
| 20140026723 | POWER WRENCH WITH A TORQUE SENSING UNIT - A power wrench with a torque sensing unit includes a housing, a motor, an output shaft, and a planetary reduction gearing connecting the motor to the output shaft and including a stationary ring gear supported in the housing, wherein the torque sensing unit includes a torque transferring element with a single radially extending reaction arm arranged to transfer reaction torque from the ring gear to the housing and carrying strain measuring sensors for generating signals in response to the transferred reaction torque. The torque transferring element includes an annular body with two weak portions to be elastically deformed during torque transfer and having flat surfaces for carrying the strain measuring sensors. | 01-30-2014 |
| 20140165796 | Electronic Torque Wrench - A torque wrench for use in driving fasteners is provided. The wrench includes an electronics unit disposed within a housing engaged with the body of the wrench that is capable of sensing and measuring the torque applied to a fastener by the wrench and providing an output of the level of torque to the user. The data sensed by the electronics unit can be utilized to provide feedback to the user regarding the operation of the wrench, and to monitor the overall operation of the wrench for calibration purposes, among other functions. During use, the wrench can provide the user with visual, audible and tactile feedback regarding the operation of the device relative to stored maximum torque values stored in the electronics unit. The housing for the electronics unit can be formed to be a single use component of the tool or can be designed for multiple uses with a configuration that can be engaged with cradles forming the body of the wrench having various different configurations. | 06-19-2014 |
| 20140165797 | ELECTRONIC TORQUE WRENCH - An electronic torque wrench includes: a wrench main body including ahead section and a shank body, at least one recess being formed on a wall face of one side of the shank body, a top face of the shank body being inward depressed to form a platform, a rear end of the shank body being inward recessed to form a cavity for placing cells therein, a through hole being formed on the shank body in communication with the platform and the cavity; at least one torque sensor disposed in the recess; and an electronic operation/control device disposed on the platform. The outward protruding volume of the operation/control device is reduced to minify the total volume of the wrench and the platform and the recess enhance the flexion of the shank body. | 06-19-2014 |
| 20140165798 | ELECTRONIC TORQUE WRENCH WITH IMPROVED HANDLE - An electronic torque wrench includes: a shank body, a drive head being connected with a front end of the shank body; a handle having a front handle section and a rear handle section, the front handle section being connected with a rear end of the shank body, a cell room being formed in the front handle section for placing cells therein, a front end of the rear handle section being detachably connected with the rear end of the front handle section; an electronic operation/control device disposed on the shank body; and at least one torque sensor mounted on the shank body. The front and rear handle sections together form the handle for a user to hold. The rear handle section of the handle serves as a cell cap for closing the cell room so as to shorten the length of the wrench. | 06-19-2014 |
| 20140260837 | ELECTRONIC TORQUE WRENCH - A torque wrench for use in driving fasteners is provided. The wrench includes an electronics unit disposed within a body of the wrench that is capable of sensing and measuring the torque applied to a fastener by the wrench and providing an output of the level of torque to the user. The electronics unit is also disposed within a barrier in the body that isolates the unit from the exterior environment around the wrench. The data sensed by the electronics unit can be utilized to provide feedback to the user regarding the operation of the wrench, and to monitor the overall operation of the wrench for calibration purposes, among other functions. During use, the wrench can provide the user with visual, audible and tactile feedback regarding the operation of the device relative to stored maximum torque values stored in the electronics unit. | 09-18-2014 |
| 20140326113 | RATCHETING DEVICE FOR AN ELECTRONIC TORQUE WRENCH - An electronic torque wrench including a wrench body, a wrench head configured to engage a workpiece, a first sensor producing a first output signal, that is proportional to an amount of torque being applied to the workpiece, a grip handle, a second sensor producing a second output signal that is proportional to an amount of rotation being applied to the workpiece, a user interface including an input device for inputting a preset torque value, and a processor for converting the first output signal into a current torque value, comparing the current torque value to the preset torque value, and converting the second output signal into a first angle value through which the workpiece has been rotated after the current torque value exceeds the preset torque value. | 11-06-2014 |
| 20140331831 | Preset Electronic Torque Tool - An electronic torque wrench or other tool, and a method and a computer program for using the same, are disclosed. The disclosed systems allow a user to operate the tool in either a manual mode or automatic mode. In the manual mode, torque or angle targets are input into the wrench before the torqueing operation, and in the automatic mode, preset torque or angle targets are selected by the user. A user can also lock the tool so only a specific torqueing operation can be used without unlocking the tool. The torque and angle values can be input simultaneously such that a work piece can be torqued to a predetermined torque and angle without separate operations. An indicator can also be implemented that indicates the progress of the torqueing operation. | 11-13-2014 |
| 20150033917 | Torque Multiplier - A torque multiplier includes an input element, an output element, a multiplying unit, a measurement unit and a display. The input element is used for connection to a tool operable for exerting torque. The output element is used for connection to an object to be driven by the tool. The multiplying unit is used for connecting the input element to the output element and turning a lower value of torque at the input element to a higher value of torque at the output element. The measurement unit is used for measuring the higher value of torque and accordingly sending a wireless signal. The display is used for receiving the wireless signal and accordingly showing the higher value of torque. | 02-05-2015 |
| 20150328756 | DIGITAL TORQUE WRENCH - A digital torque wrench mainly comprises a transmission rod of wrench body provided in a handle, and a tool head provided at the exterior of the handle. An abutment surface on the other end of the transmission rod is to abut with one end of a lever arm. A roller is provided on the other end of the lever arm, and a rolling member opposite to the roller is also provided. A latch member on an actuator is inserted between the roller and the rolling member. Further, a controller is coupled with the actuator and a torque sensing element. | 11-19-2015 |
| 20160031070 | TORQUE WRENCH - A torque wrench comprises a head for engagement with a workpiece and a handle for applying a torque to the head. The handle comprises: a body; at least two elastic elements disposed within the body; a connector between the elastic elements; and a torque adjustment element for determining a compression of the elastic elements. The torque adjustment element is slidably engaged with the connector such that radial movement of the torque adjustment element is limited. | 02-04-2016 |
| 20160067850 | Method of Calibrating Torque Using Peak Hold Measurement on an Electronic Torque Wrench - The present disclosure relates to an electronic torque tool, a calibration fixture, and a method for calibrating the electronic torque tool. The calibration includes applying a torque to the torque wrench and releasing the applied torque once the applied torque reaches a full scale calibration torque. The calibration fixture holds and displays a peak value of the applied torque and the torque wrench holds and displays a measured peak value of the applied torque. The measured peak value on the torque wrench may then be adjusted, by incrementing or decrementing the displayed value, to match the peak value displayed on the calibration fixture. | 03-10-2016 |
| 20160144492 | TORQUE WRENCH - A torque wrench includes a wrench body, a wrench head pivotally carried by the arm, a plunger, a pawl, a spring for urging the plunger, and an adjustment assembly. The adjustment assembly is operatively connected to the spring to vary an effective force of the spring on the plunger. The piezoelectric sensor is interposed in between the plunger and the spring for producing an output signal in response to the effective force exerted by the spring. A processor is provided for converting the output signal into an equivalent torque value, the equivalent torque value indicating a preset torque to be applied by the torque wrench to the workpiece. A display is further employed for displaying the equivalent torque value. Application of a torque greater than the preset torque to the workpiece causes the wrench head to pivot relative to the wrench body about a pivot joint. | 05-26-2016 |
| 20160167208 | ELECTRONIC TORQUE WRENCH EQUIPPED WITH AUTOMATIC OUTPUT-TORQUE COMPENSATION DEVICE | 06-16-2016 |
| 081480000 | Axis of connection coaxial to rotational axis of work | 8 |
| 20110011220 | LOCKABLE TORQUE-LIMITING DRIVER - A lockable torque-limiting driver includes a body and a sleeve received in a sleeve chamber of the body and secured therein by recesses inside the body. The sleeve is provided with projecting edges on the outer wall to be respectively fitted in the recesses of the body, plural recessed grooves at the inner wall for fixing an upper cam, and female threads at the inner wall to be screwed with the male threads of a torque-limiting member, further disposed with plural positioning serrations at topside and a center chamber inside. The upper cam and a lower cam respectively have one-way serrations to be mutually engaged. The torque-limiting member is fixed with positioning projections to be actuated to move on the positioning serrations of the sleeve and give out sounds by which a user can know a torque limiting extent desired. | 01-20-2011 |
| 20110277601 | Torque Wrench - A torque wrench comprising a shaft with a longitudinal axis; wherein the shaft has a lower end and an upper end, the lower end being configured to engage a fastener. A shaft cam is configured to rotate with the shaft around the longitudinal axis. A groove is defined in the shaft cam, the groove comprising a groove upper surface. A ramp is positioned within the groove at a position below the groove upper surface, wherein the ramp comprises a ramp upper surface with a first lower point, a first upper point and a surface extending along a perimeter of the shaft cam between the first lower and first upper points at an angle with respect to the longitudinal axis. The ramp upper surface is configured so that the first lower point is positioned in the direction opposite of the direction of the intended torque with respect to the first upper point. A housing surrounds the shaft and shaft cam. The wrench comprises an outer cam comprising an engaging member extending within the housing, wherein the engaging member is configured to selectively contact ramp upper surface or groove upper surface. The wrench also comprises a spring configured to apply a downward force on the outer cam, such that the outer cam tends to prevent the shaft cam from rotating when the upper surface of the ramp is in contact with the engaging member of the outer cam. A void is defined in the groove between the ramp and a side wall of the groove, the void configured to allow the engaging member to escape the groove when it is not constrained by the ramp. | 11-17-2011 |
| 20110314976 | Multiple Slope or Multiple or Multiple Offset Tool Mechanism - Use of multiple-slope and/or multiple-offset mechanism or equivalent to address the issues with current mechanical clickers that have single-slope spring mechanism. The varying-slope can be a continuously varying-slope non-linear spring, or a combination of discretely varying multiple-slope springs. This invention is useful for clicker type torque wrenches, clicker type torque screw drivers, beam type torque wrenches, beam type torque screw drivers and shock absorbers. The present invention is equally applicable to clickers that click in both the CW (clockwise) and CCW (counterclockwise) directions or clickers that click only in one direction. The invention is generally characterized by placing a non-linear spring or combination of springs in the tool body to achieve multiple slope operation rather than using one single slope spring. The multiple slope configuration is superior in performance by moving closer to the ideal case of 0% error in operation. This error performance can be maintained with multiple slope configurations over the entire range of operation. The multiple slope configuration prolongs the life of the product as well as decreasing the need for recalibration as well as increasing the range of operation. | 12-29-2011 |
| 20120279365 | Bolt-Through Torque Wrench Assembly - A torque wrench assembly includes a handle, a socket housing coupled to the housing, and a socket rotatably coupled to the socket housing. The socket defines an opening extending along a longitudinal axis from a first end to a second end and having a fastener driving portion disposed at one of the first end and the second end of the socket. | 11-08-2012 |
| 20140020520 | TORQUE MULTIPLIER AND METHOD OF USE - A torque multiplier apparatus includes an input pinion, a geared torque multiplier mechanism, and an input retainer. The input pinion and the input retainer include first and second identical connectors so that a detent stud can be positioned in either one of the first and second connectors, allowing the torque multiplier to be used for increased torque (and reduced speed) or for increased speed (and lesser torque). A related method includes engaging the driving tool with the first connector and the socket with the second connector to provide an increased torque on a socket to break loose a fastener, and flipping the torque multiplier so that the driving tool engages the second connector and the socket engages the first connector to provide an increased speed of torsional rotation to more quickly remove the fastener from the shaft. The detent stud is torsionally shearable, thus preventing over-stressing and damaging the tool. | 01-23-2014 |
| 20140373691 | BIDIRECTIONAL TORQUE WRENCH - A bidirectional torque wrench includes a main body pivotally fixed thereon with an operating rod, and at least two resisting units are equiangularly and symmetrically assembled at the circumferential side of the operating rod. By so designing, in a process of operating the bidirectional torque wrench, the lateral forces acting on the resisting units are in opposite direction and able to be offset mutually to prevent the resisting units from shifting eccentrically for stabilizing torsion output, able to lower the torque force received by one single resisting unit and greatly enhance the maximum torsion value that the bidirectional torque wrench can output. | 12-25-2014 |
| 20150013509 | SCREWDRIVER - A screwdriver includes a screw rod including a first end and a second end opposite to the first end. The screwdriver defines a screw slot on an external portion adjacent to the second end. The screwdriver further includes a screwdriver bit fixed to the first end of the screw rod, a resisting portion fixed to the second end of the screw rod, a handle placed over a portion of the screw rod adjacent to the second end. A movable element fixed to an inside wall of the handle and tightly closed to an inside surface of the screw slot, and an elastic element placed over the screw rod between the first end and the handle. | 01-15-2015 |
| 081482000 | With pivoted locking pawl | 1 |
| 20120304838 | ELECTRICAL TORQUE SCREWDRIVER - An electrical torque screwdriver includes a handle, a shaft, a torque limiter, and an electrical switch. The shaft is disposed on the handle and rotatable but not movable linearly. The torque limiter includes a driving tooth, a slipping block, a pawl, and at least one restoring element. The driving tooth is disposed on the shaft. The slipping block is disposed on the handle. The slipping block is displaceable linearly but not rotatable. The pawl is disposed on the slipping block and engaged with the driving tooth. The restoring element is pivotally disposed on the handle and has a restoring force, wherein one end of the restoring element resists against the slipping block for pushing the pawl to be engaged with the driving tooth. The electrical switch is disposed on the handle for optionally resisting against the other end of the restoring element to stop the restoring element. | 12-06-2012 |
| 081483000 | With arm extending from portion and through connection | 2 |
| 20110113936 | Adjustable torque wrench having lock device - An adjustable torque wrench includes a driving shank pivotally coupled to a tubular lever and biased with a compression spring, an adjusting screw for adjusting a compression force of the compression spring, and a barrel attached to the adjusting screw and rotated in concert with the adjusting screw and having a graduation aligned with a window of the tubular lever for allowing the graduation of the barrel to be seen through the window of the tubular lever, a control ferrule is slidably engaged with the adjusting screw for rotating the adjusting screw to adjust the compression force of the compression spring, and a lock device attached to a handle for selectively anchoring the control ferrule to the handle. | 05-19-2011 |
| 20170232593 | DYNAMIC OFF-AXIS TORQUE WRENCH COMPENSATION | 08-17-2017 |
