| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 081342000 | Jaw-actuating means (handle-manipulation conversion) | 36 |
| 20090056509 | Pliers made of an in situ composite of bulk-solidifying amorphous alloy - Pliers comprising a composite material comprising: individual regions of a ductile metal phase distributed in a substantially continuous amorphous metal alloy matrix are disclosed. Pliers comprising a first lever arm and a second lever arm that is complementary to the first lever arm, wherein the two arms are pivotally attached, and at least a portion of at least one of the two arms comprises the composite material are disclosed. A method of forming pliers is disclosed. | 03-05-2009 |
| 20090308211 | HAND TOOL AND METHOD OF USING SAME - A hand tool generally includes a tool mount that removably receives thereon a tool. The tool mount and tool cooperate to provide the hand tool with a variable angle of attack with an enhanced power ratio for accommodating aged, arthritic and otherwise handicapped people. | 12-17-2009 |
| 20100011916 | LEVER DIVICE - A lever device includes first and second levers coupled at a lever pivot. First end of a first bar is pivotally coupled to the first lever at a first lever-bar pivot. First end of a second bar is pivotally coupled to the second lever at a second lever-bar pivot. First tool is pivotally coupled to a distal end of the first lever at a first lever-tool pivot. Second end of the first tool is pivotally coupled to the second end of the second bar. Second tool is pivotally coupled to the second lever at a second lever-tool pivot and a second end of the lever is pivotally coupled to the second end of the second bar. First lever-bar pivot is between the lever pivot and a distal end of the first lever and the second lever-bar pivot is between the lever pivot and a distal end of the second lever. | 01-21-2010 |
| 20100058899 | ELECTRO-MECHANICAL ACTUATOR DEVICE AND APPARATUS INCORPORATING SUCH DEVICE - A microgripper ( | 03-11-2010 |
| 20100229696 | Effort-Saving Hand Tool - An effort-saving hand tool includes a first shaft, a second shaft, a connection shaft, and a third shaft. The first shaft has a first end, a second end, and a pivot point located between the first end and the second end. The second end of the first shaft includes a first loading part. The second shaft has a first end and a second end. The pivot point of the first shaft is pivoted to the first end of the second shaft. The second end of the second shaft includes a second loading part. The connection shaft has a first end pivoted to the first shaft. The third shaft has a slender rear part, a first side, and a second side. The first side of the third shaft is pivoted to the second shaft. The second side of the third shaft is pivoted to a second end of the connection shaft. | 09-16-2010 |
| 20110113934 | DRILL STEM CONNECTION AND METHOD - A drill stem connection system and method is shown that provides a secure hold on drill stem surfaces while unscrewing a threaded connection. Two lever arm components are adjustable to a number of possible orientations to allow for fitting the drill stem wrench in tight spaces. Concentric rotation of lever arm components facilitates connection of the lever arm components together. Configurations and methods shown provide a stable and powerful tool to loosen threaded drill stem effectively. | 05-19-2011 |
| 20120096994 | HAND TOOL WITH COMPOUND LEVERAGE MECHANISM - A compound leverage hand tool includes a first section having a first handle end and an opposing first jaw portion with a first jaw end, a second section having a second handle end and a link end, and a second jaw portion having a second jaw end and a lever end, the second jaw portion pivotally coupled to the first jaw portion at a first pivot point intermediate the second jaw end and the lever end. The link end is pivotally coupled to the lever end at a second pivot point, and the link end is pivotally coupled to the first section proximate the first jaw portion at a sliding pivot point intermediate the first pivot point and the second pivot point. | 04-26-2012 |
| 081343000 | With means to choose one of a plurality of actuator leverages | 1 |
| 20100224037 | Disassembling tool for air hose - A disassembling tool for an air hose is proposed. The tool has two pivotally connoted members. When drawn together, the two members jointly provide at least one air-hose hole that allows the air hose to pass through. By using the tool to press upon a joint of an air compressor, the air hose assembled in the air hose can be easily disassembled from the joint. | 09-09-2010 |
| 081347000 | With means to articulate and/or slide both jaws | 2 |
| 20130263705 | LOCKABLE GRIP WRENCH - A wrench includes a locking mechanism that provides variable locking positions. The wrench has handles that are rotatably connected such that a closing motion of the handles allows the wrench to grip workpieces as desired by moving a plurality of jaw elements inward toward the workpiece. The locking mechanism advantageously allows the jaws and handles of the wrench to be locked precisely on any size workpiece within the working range of the wrench. Related methods are also described. | 10-10-2013 |
| 081352000 | With means for parallel movement of work-engaging surfaces | 1 |
| 081354000 | Lateral guide means | 1 |
| 20120000326 | PARALLEL ACTION PLIERS - Provided is a hand tool with a first handle portion, a first jaw portion connected to the first handle portion at a first jaw pivot located near a distal end of the first handle portion, a second handle portion connected to the first handle portion at a handle pivot, the handle pivot being located proximal of the first jaw pivot, a second jaw portion connected to the second handle portion at a second jaw pivot located near a distal end of the second handle portion, the handle pivot being located proximal of the second jaw pivot, and a first slider that is substantially elongate, has a length and a longitudinal axis along the length, the first slider extending between the first and second jaw portions and being slidably connected to the first jaw portion. | 01-05-2012 |
| 081355000 | With means for sliding jaw actuation | 6 |
| 20090056510 | HAND OPERATED GRIPPING TOOL - A hand operated gripping tool includes a first jaw, a second jaw, a first cam associated with said first jaw, a pivotal handle associated with said first jaw and a second cam associated with said pivotal handle, said first and second jaws being cooperable to define a variable size space for receiving a workpiece and said first and second cams being operable to cause said first and second jaws to grip a said workpiece that is positioned in said variable size space. | 03-05-2009 |
| 20090277311 | Adjustable plier device - An adjustable plier device includes a handle having a stationary jaw member and a number of teeth extended into a groove of the handle, a movable jaw member slidably attached to the handle and having a curved recess for pivotally engaging with a follower which includes a toothed pawl for engaging with the teeth of the handle and having a curved depression for pivotally engaging with one end of a lever, and an actuating member pivotally coupled to the handle and the lever for actuating the lever to quickly force the movable jaw member to grasp the work piece, and to force the toothed pawl to engage with the teeth of the handle and to retain the work piece between the jaw members. | 11-12-2009 |
| 20100192735 | Release auto-grip locking tool - A release auto-grip locking tool designed for single hand use while maximizing safety and ease of use by way of isolating the release auto-grip feature from the leveraged power-gripping feature thus maximizing power to the jaws. | 08-05-2010 |
| 081356000 | With adjustment means | 2 |
| 20120297938 | PLIERS WITH QUICKLY ADJUSTABLE GRIPPING JAWS - A pliers with quickly adjustable gripping jaws includes a first jaw and a second jaw. The first jaw is deposited on a first hand shaft. The second jaw is pivoted on a second hand shaft. An adjusting set is set up between the hand shafts. The adjusting set includes a control lever and a sliding lever. The control lever has first teeth and the sliding lever has second teeth. The first and second teeth are engaging with each other. An elastic member is located between the control lever and the second hand shaft. A spring is locked between the sliding lever and the second hand shaft. The elastic member and the spring are serving for control lever and sliding lever to back their beginning respectively. Therefore, a user only clamps the hand shafts of the pliers to adjust the gripping jaws quickly in order to clamp objects with different sizes. | 11-29-2012 |
| 081357000 | Pivoted pawl type | 1 |
| 20080282851 | LOCKING PLIERS - The locking pliers comprises a first handle connected to a first jaw. A second handle and second jaw are pivotably connected to the first handle and first jaw such that movement of the first handle relative to the second handle causes the jaws to open and close. A mechanism is provided to lock the jaws relative to one another and apply a clamping or gripping force on a workpiece positioned between the jaws. A release mechanism is provided to unlock the pliers that is independent of the locking operation. | 11-20-2008 |
| 081359000 | Claw lever and rack or notch | 1 |
| 081360000 | Plural teeth on claw | 1 |
| 20100263499 | MULTI-FUNCTION PIPE CUTTING AND FITTING TOOL - A multi-function pipe cutting and fitting tool includes a spring biased connecting rod, a pair of plier teeth and a pair of friction teeth. The spring biased connecting rod improves the pipe cutting function of the tool by improving the operation of a movable jaw toward engagement of a fixed jaw. The pair of plier teeth positioned on one side of the tool allows a user to firmly grip a pipe or other object to be held in place. The pair of friction teeth positioned on an opposite side of the tool allows a user to more reliably engage an object such as a cap on a can of glue. The inclusion of all of these features in the same tool allows a user to perform multiple functions easily and more rapidly. | 10-21-2010 |
| 081364000 | Including claw lever and rack or notch means | 1 |
| 081366000 | Plural teeth on claw | 1 |
| 20160023331 | DIS/ASSEMBLING PLIER FOR A CONNECTOR - A dis/assembling plier for a connector is provided, including a first clamping body, a driving lever and a clamping member. The first clamping body includes a first grip portion, a first clamping portion and a body portion connected between the first grip portion and the first clamping portion, and the body portion is formed with a first pivoting portion and a second pivoting portion. The driving lever is pivoted with the first pivoting portion and includes a second grip portion and a driving tooth portion disposed on two opposite ends of the first pivoting portion. The clamping member is pivoted with the second pivoting portion and includes a second clamping portion and a passive tooth portion disposed on two opposite ends of the second pivoting portion. The passive tooth portion is engaged with the driving tooth portion and rotatable around the second pivoting portion. | 01-28-2016 |
| 081367000 | Including toggle means | 17 |
| 20080264217 | Pliers - Pliers, with two arms that are joined together via an articulation pin. One of the arms has a protuberance with a lateral channel that extends via one of the orifices, a pusher being located in the channel and having an inner channel that accommodates a spring that acts between the pusher and the arm. The articulation pin is joined by means of screwing to the pusher in the region of the lateral channel, a toothed claw being arranged coaxially therebetween with mechanical continuity. The pusher is continued as an extension located on the walls of the other orifice in the work position. Applicable to hand tools. | 10-30-2008 |
| 20090145269 | TWO-STROKE TOOL - A hand tool comprising first and second jaw members and first and second handle members, the first handle and both jaw members being cooperatively connected by a force multiplying linkage system. A force applied to the first handle drives the linkage system to close the jaws to crimp or cut a work piece. In one embodiment of the invention, a link in the linkage system has a first end movable between first and second positions relative to its first end pivot pin wherein the first and second jaw members close a first distance when the link first end is in the first position and close a second distance when the link first end is in the second position. Other embodiments comprise other step-wise changes in distance between force-bearing pivot locations in the linkage system to close the jaws progressive distances with successive closures of the first and second handles. | 06-11-2009 |
| 20110113935 | Vice grip improvement - An improved locking wrench is provided. The improved locking wrench includes a stationary upper handle which includes a fixed upper jaw, and a lower jaw pivotally connected to said upper handle so that said lower jaw is in opposition to and pivotally movable towards and away from said upper jaw. A lower operating handle having a distal end pivotally is connected to said lower jaw and movable between closed and opened positions which responsively pivotally moves said lower jaw towards and away from said upper jaw. A toggle lever is pivotally coupled at one end to said lower operating handle and has an opposite end coupled operatively to said upper handle. A screw adjustment means having a head portion and a threaded shank portion is threadably engaged with said upper handle and operatively coacting with the opposite end of said toggle lever for effecting clamping force adjustment between said upper and lower jaws, said screw adjustment means defining a hole at least partially formed within said head portion for receiving an item of hardware therein. | 05-19-2011 |
| 20110138973 | Flat clamping hand tool structure - A flat clamping hand tool structure includes a left clamping seat having one side with a left fixing portion facing a right fixing portion on one side of a right clamping seat. The first and second fixing members move up and down in left and right mounting slots of the left and right clamping seats by left and right swing plates which are pivotally connected with upper and lower holders. The left and right clamping seats are guided to move by guiding blocks of the upper and lower holders to slide along guiding grooves of the left and right clamping seats. Left and the right arms pivot together through a first pivot member. Left and right limit portions of the left and right swing plates mesh with each other so as to drive the left and right clamping seats to carry out a clamping motion. | 06-16-2011 |
| 081368000 | With toggle release | 11 |
| 20080216615 | Structure of pliers - This invention is to propose an improved structure of pliers that can clip objects of various shapes easily and tightly. It comprises: a recessed main body that mounts, in one side, with a fixed pliers jaw and a movable pliers jaw, and collaborates with an adjusting screw in the other side. The movable pliers jaw is also, in another end, mounted with a pressing lever that also mounts with an elbow device and a releasing lever. Further, a spring is set between the main body and movable pliers jaw. The improved feature of this invention is that both the fixed and movable pliers jaws have toothed faces in their front ends that can engage firmly with each other, and form a proper-sized room to clip working objects of various shapes firmly and tightly, and also, the toothed faces of both jaws can used to clip string-shaped objects to perform tasks as necessary. | 09-11-2008 |
| 20080236344 | MULTIPURPOSE SELF-ADJUSTING LOCKING PLIERS AND CLAW HAMMER COMBINATION - A multipurpose self-adjusting locking pliers and claw hammer combination is disclosed that includes a self-adjusting locking pliers unit including an upper jaw, a pivotal lower jaw, a stationary handle having a rear adjustment member, and a pivotal trigger handle having a release lever; and a hammer unit including a head downwardly projecting from the lower jaw and a claw upwardly rearward projecting from the upper jaw. | 10-02-2008 |
| 081369000 | By means acting on intermediate pivot | 9 |
| 081370000 | Release means carried by grip lever | 9 |
| 20100186558 | Locking pliers with quick jaw release - A jaw release mechanism for locking pliers which utilize an over-center toggle locking mechanism and wherein the normally stationary upper jaw of the pliers is pivotally fastened to the main body of the pliers. This normally stationary upper jaw is releaseably retained in a normally stationary position relative to the main body of the pliers by a thumb actuated trigger release mechanism whereby the locked pliers may be safely released with the same hand which grasps and manipulates the pliers. | 07-29-2010 |
| 20110107880 | Pliers Having Generally Parallel Jaws - Pliers with parallel jaws include an upper portion having an upper jaw of upper teeth, a lower jaw portion having a lower jaw of lower teeth. The lower jaw portion includes first and second pivot points. An adjustment portion is non-pivotably coupled to the upper portion and selectively movable relative thereto and includes a first pivot point. A lower handle includes first and second pivot points. A break over link includes first and second pivot points pivotably coupled to the adjustment portion and lower handle's first pivot points, respectively. A two-point link includes first and second pivot points pivotably coupled to the upper portion's and lower jaw portion's first pivot points, respectively. A three-point link includes first and second pivot points pivotably coupled to upper and lower jaw portions' first and second pivot points, respectively, and a third pivot point pivotably coupled to the lower handle's second pivot point. | 05-12-2011 |
| 20120073409 | LOCKING PLIERS HAVING BOTH FAST AND FINE ADJUSTMENT TO JAW SPACING - The pair of locking pliers contains a seesaw member pivotally joined to a back end of a first handle; and an adjustment member capable of sliding up and down within the first handle. The adjustment member contains an adjustment body and an adjustment bolt axially and rotatably threading through the adjustment body. The seesaw member contains a seesaw handle and a torsion spring engaging the seesaw handle so that a first chain of teeth of the seesaw handle engages or disengages a second chain of teeth along the adjustment body to lock the adjustment body or to allow the adjustment body to slide up and down. When the adjustment body slides, a spacing between the jaws of the locking pliers are adjusted quickly. When the adjustment body is locked by the seesaw handle, the adjustment bolt is twisted to fine-tune the jaw spacing. | 03-29-2012 |
| 20120096995 | Self-adjusting locking pliers with rear retainer - A self-adjusting locking pliers includes a stationary handle; a front stationary jaw; a thumb screw threadedly secured to a rear end of the stationary handle; a front moveable jaw; an operating handle pivotably secured to a rear end of the moveable jaw; a toggle link pivotably interconnecting the stationary handle and the operating handle; a biasing member having one end secured by the moveable jaw and the other end fastened in the stationary handle; a quick release lever having an intermediate portion pivotably fastened in the operating handle and a front end urged against one end of the toggle link in the operating handle; and a retainer having one end pivotably secured to a rear end of the operating handle, the retainer comprising a ring at the other end and a bar interconnecting both ends. The ring may be lockingly put on the thumb screw. | 04-26-2012 |
| 20130239759 | SIMPLE STRUCTURE OF LOCKING PLIERS FOR RELEASING AND OPENING HANDLES AND JAWS THROUGH FAST AND DIRECT PULLING - A structure of locking pliers includes a movable joint pulling and pushing mechanism directly mounted to a tail end of a second handle. The mechanism includes a movable pulling bar forming a front-end arc recess that is positioned against a middle projection of a movable locking arm straddling between first and second handles of the pliers. The movable pulling bar of the pulling and pushing mechanism is provided with a U-shaped groove, which has a side projecting to form a wing projection, in a portion thereof that is engageable with the tail end of the second handle. The wing projection functions as a safety and protection device so that the movable joint pulling and pushing mechanism is provided with a hand push-way function to protect a user's hand from clamping and injury. | 09-19-2013 |
| 20160039072 | Gripping Tool with Adjustor Allowing Quick Adjustments of Clamping Pressure Modes - A gripping tool includes a first gripping side and a second gripping side cooperating with the first gripping side. The first gripping side includes a first handle side and a first jaw side fixedly connecting to the first handle side. The second gripping side includes a second handle side and a second jaw side pivotally connecting to the second handle side. The first handle side receives an adjustor. Upon operation of the adjustor, the spacing between the first and second jaw sides can be changed. The adjustor includes a control. The mid section of the first handle side has a largest width defining a first width. The control has a largest width defining a second width. The second width is smaller than the first width. The control includes a hole, and an external tool can engage in the hole to facilitate the operation of adjustor. | 02-11-2016 |
| 20160046002 | Clamping Device With Two Parallel Jaws - A clamping device includes first and second clamping members. Each of the first and second clamping members has a handle and a jaw. A bend is formed between two ends of the jaw of the first clamping member, and a first angle between the jaw and the handle of the first clamping member is smaller than 180°. Another bend is formed between two ends of the jaw of the second clamping member, and a second angle between the jaw and the handle of the second clamping member is equal to the first angle. The clamping device can be used to clamp a pipe. When the second clamping member is moving from a release position to the clamping position, two clamping portions respectively of the jaws remain parallel to each other such that force is evenly applied to two sides of the pipe. | 02-18-2016 |
| 20160046003 | Clamping Device Preventing Disengagement of an Adjusting Screw - A clamping device includes first and second clamping members. Each of the first and second clamping members has a handle and a jaw. The handle of the first clamping member includes an inner threaded portion extending along a longitudinal axis and an adjusting screw threadedly engaged with the inner threaded portion. The adjusting screw includes a first end having a disengagement preventing portion located in a sliding section between two ends of the handle of the first clamping member. The adjusting screw further includes a second end located outside of the handle of the first clamping member. The disengagement preventing portion of the handle of the first clamping member has a maximal height perpendicular to the longitudinal axis not smaller than a minimal inner diameter of the inner threaded portion perpendicular to the longitudinal axis. The disengagement preventing portion prevents the adjusting screw from disengaging from the handle. | 02-18-2016 |
| 081371000 | Mounted on intermediate pivot | 1 |
| 20090223331 | Apparatus and method for depressing brake drum springs - A c-clamp locking device has been specially modified to depress brake drum springs while the brake shoes are replaced. The device has opposing c-clamp jaws, one of which has a blunt end for compression against the surface of the brake drum, and the other of which has a ring for compressing the brake drum spring. The jaws are adjustable relative to each other. A locking mechanism enables the device to lock in place when the brake drum spring is appropriately compressed, allowing the mechanic to use both hands unencumbered when replacing brake shoes. | 09-10-2009 |
| 081372000 | With means to limit movement of intermediate pivot | 1 |
| 20140251093 | PINCER STRUCTURE - A pincer structure includes a first body having an immovable palate and an immovable stem, a second body having a movable palate and a movable stem, a clipping space defined by the movable palate and the immovable palate, the movable stem pivoted on the movable palate, an elastomer elastically connected between the movable palate and the immovable stem, a limiting member extruded from the movable stem, the limiting member having an abutting unit, a pivoting member pivoted on the movable stem, the pivoting member having an abutting portion, the abutting portion being movable between the movable stem and the abutting unit, a connecting member having one end and another end, said one end pivotally assembled to the pivoting member and said another end movably assembled to the immovable stem. Therefore, a recovery force of the elastomer makes the operation smooth. | 09-11-2014 |
| 081377000 | With connecting rod between grip lever and handle member | 1 |
| 081378000 | With actuated jaw pivoted on handle member | 1 |
| 081379000 | With means for resiliently biasing jaw and/or toggle | 1 |
| 20130014618 | LOCKING PLIERSAANM WU; Ming-ChiehAACI Taichung CityAACO TWAAGP WU; Ming-Chieh Taichung City TW - A locking pliers includes a fixed handle supporting a fixed jaw, a movable jaw, a movable handle pivotally connected to the movable jaw about a pivotal axis, and a movable pivot unit disposed on the fixed handle and the movable jaw. The pivot unit includes a pivot pin and a pivot hole configured to loosely receive the pivot pin such that, when a manual turning force is applied to the movable handle, the movable jaw is turned clockwise to a locking position. As a result of abutting engagement between the pivot pin and a leading region of the pivot hole, a friction force is generated to hold the movable jaw in a tightening position. The gripping force between fixed and movable clamping surfaces of the jaws can be firm and stable. | 01-17-2013 |
| 081381000 | Including grip lever actuator and pivoted jaw (e.g., tandem levers) | 2 |
| 20120144963 | LABORSAVING PLIERS - Laborsaving pliers includes a first main body composed of a first handle at a lower end and a first working portion at the upper side. The first working portion is provided with a first combining member having a first jaw, and an arcuate slide groove is bored between the first combining member and the first handle. A second working portion is provided with a second combining member to be combined with the first combining member, having a second jaw corresponding with the first jaw, and the second combining portion has fixed with a combining rod. A second handle has an upper end secured with a sliding rod to slide in the arcuate slide groove, having a slide-joint groove positioned adjacent to the center for the combining rod to slide therein. | 06-14-2012 |
| 081383000 | With link connecting jaw and grip lever | 1 |
| 20090277312 | Pliers - A pliers includes first and second pliers parts and an articulation that pivotably connects the pliers parts. The articulation is arranged on at least one of the pliers parts between its ends. First and second handle elements associated with the first and second pliers parts. The first pliers part is connected rotation-fast to the first handle element. The second pliers part is pivotably connected to the second handle element. A coupling element that is pivotably attached to the second handle element has a hinge point arranged on the second handle element spaced apart from the hinge point of the second pliers part on the second handle element. The coupling element is also pivotably attached to the first pliers part or to the first handle element. The hinge point of the coupling element is arranged on the first pliers part or on the first handle element spaced apart from the articulation that connects the pliers parts. A first imaginary connecting line running between the articulation and the hinge point of the second pliers part on the second handle element is largely parallel to a second imaginary connecting line that connects the hinge point between coupling element and first handle element and the hinge point between coupling element and second handle element. | 11-12-2009 |
