Class / Patent application number | Description | Number of patent applications / Date published |
173168000 | PASSAGE IN MANIPULATING HANDLE FOR DRIVE MOTOR MOTIVE FLUID | 21 |
20090020300 | AIR INLET FOR PNEUMATIC POWER TOOL - A pneumatic power tool with a housing assembly, a pneumatic motor assembly, an output member, and a trigger assembly. The housing assembly has a body, a cap member and a gasket assembly. The body defines a motor cavity and an inlet manifold. The cap member defines an air inlet port. The gasket has a first portion being a band formed of a compressible material and a second portion formed of a porous material. The band of the first portion is sealingly abutted against the body and cap member. The pneumatic motor assembly is received in the motor cavity defined by the body. The output member is driven by the pneumatic motor assembly. The trigger assembly is coupled to the housing assembly and is operable for selectively operating the pneumatic motor assembly. Pressurized air received into the air inlet port is filtered by the second portion of the gasket assembly and flows into the inlet manifold when the pneumatic motor assembly is operated. A related method is also provided. | 01-22-2009 |
20090242225 | PNEUMATIC TOOL WITH NOISE REDUCTION FUNCTION - A pneumatic tool capable of reducing noise includes a housing having an air intake passage and an exhaust passage, a pneumatic unit mounted in the housing, and an air-guiding member detachably mounted in the exhaust passage. The air-guiding member has an end plate with at least one hole and a lateral wall mounted on a periphery of the end plate to define an air-guiding chamber therebetween and extending divergently from the end plate and provided with at least one hole. Thus, when compressed air goes through the pneumatic tool from the air intake passage to the exhaust passage, it goes into the air-guiding chamber through the holes of the end plate and the lateral wall, and then goes out of the housing. | 10-01-2009 |
20100147543 | HANDGRIP FOR A PNEUMATIC MACHINE FOR MACHINING SURFACES - A handgrip ( | 06-17-2010 |
20100200259 | PNEUMATIC TOOL - A pneumatic tool which can be easily assembled. This pneumatic tool includes a tool housing ( | 08-12-2010 |
20120138325 | Machine Tool, in particular Hand Machine Tool - A tool machine has a housing assembled by two separate housing parts and an air directing element arranged in the housing, wherein the air directing element is implemented independently from a connection device for connecting the housing parts. The air directing element is forced by a housing part axially in a seat in the other housing part, wherein in the transmission path between the housing parts and the air directing element a spring element is arranged. | 06-07-2012 |
20130037291 | Device for Precisely Controlling Negative Pressure - A device for controlling the negative pressure in tools ( | 02-14-2013 |
20130081838 | Handle For A Hydraulically Driven Tool With Heat Transmission Reducing Properties - A handle for a hydraulically driven tool is provided reduces the amount of heat transmitted to the user of the tool as a result of the high temperature fluid flowing through the inner body of the handle. The inner body is formed of a heat transmissive material which has at least one channel through which the fluid flows. The handle has a number of properties which reduces heat transmission to the user, including standoffs, ribs and fastener receiving extensions. | 04-04-2013 |
173169000 | Motive fluid control valve in handle passage | 14 |
20080230247 | Airflow control structure for pneumatic tools - The improved airflow control structure for pneumatic tools has an air inlet to receive external air, a cylinder located in a pneumatic tool and an air intake passage located between them. A valve bushing is provided to connect to the air intake passage and respectively connect a first air intake flow path and a second air intake flow path. The valve bushing holds a control bar which can alter the air intake flow path of the pneumatic tool to control the rotation of pneumatic tool in a positive direction or a reverse direction. As the valve bushing and the cylinder are integrally formed in one piece, the pneumatic tool can be adopted in a plastic housing. Through the control bar users can operate the pneumatic tool single-handed as convenient as to start, stop or regulate the pneumatic tool in positive or reverse rotations while using the same hand to hold it. | 09-25-2008 |
20090178819 | Adjustable exhaust assembly for pneumatic fastener - An adjustable exhaust assembly for a pneumatic fastening tool having body and a handle extending from the body, the handle defining an inlet channel for receiving input of pressurized gas and an outlet channel for outputting exhaust. The adjustable exhaust assembly includes a base non-rotatably attachable to an end of the handle opposite the body. The base has a plate and a boss extending from the plate. The boss is configured to receive an air hose and defining an inlet opening configured to direct compressed air to the inlet channel. The plate has an outlet opening in communication with the outlet channel. A substantially annular and cap is rotatably received about the boss. The cap defines a substantially annular channel in communication with the outlet opening of the base and an outlet port defined in a portion of a circumferential wall of the annular cap and in communication with the annular channel. Rotation of the cap about the boss moves the outlet opening among a plurality of radial positions relative to the boss. | 07-16-2009 |
20090272554 | MOTOR ASSEMBLY FOR PNEUMATIC TOOL - A motor arrangement for a pneumatic tool includes a motor cylinder defining a motor chamber, an inlet passage adapted to receive a flow of motive fluid, forward and reverse passages communicating with the motor chamber, a throttle port, and at least one exhaust port. A motor rotor rotates in a forward direction in response to motive fluid flowing into the motor chamber from the forward passage and in a reverse direction in response to motive fluid flowing into the motor chamber from the reverse passage. A valve actuates to selectively place one of the forward and reverse passages in communication with the inlet passage for the provision of motive fluid from the inlet passage to the selected one of the forward and reverse passages. A throttle mechanism including a throttle actuator extends through the throttle port and is actuable to control the flow of motive fluid through the inlet passage. | 11-05-2009 |
20100181086 | THREEE-STAGE VALVE SWITCH STRUCTURE - Disclosed is a three-stage valve switch structure, having a specifically designed main switch and an auxiliary switch, and is operated in cooperation with a forward rotation air passageway, and a reverse rotation air passageway, so that air of an air pump enters into a pneumatic device from said air passageway in driving an oil piston into forward rotation, pulling action, and reverse rotation; and said auxiliary switch is utilized in a condition that, in case that retrieving from a rivet nut done by a pneumatic machine tool is not complete, then said auxiliary switch can be pressed down for driving said pneumatic device into rotating its blades in a reverse manner, hereby reversely rotating said oil piston to make said retrieval from rivet nut more complete. The application of the present invention is not restricted to rivet-nut-riveter, it can also be utilized in pneumatic machine tools requiring forward rotation, pulling action, and reverse rotation functions. | 07-22-2010 |
20110155406 | PNEUMATIC DRILL DEVICE - Pneumatic drill device comprising an outer casing, an assembly of a cylinder and a movable piston actuating a pick element, a device for supplying the cylinder with compressed air, an air exhaust device and an operational control device, wherein the outer casing is formed from two complementary sections adapted to fit into one another in order to enclose, in addition to the cylinder and piston assembly, the said devices for supplying the cylinder, for air exhaust and for operational control. | 06-30-2011 |
20110259622 | Method of modifying a hand-held tool - A method of modifying a hand-held tool which having a stationary handle actuated by a movable handle connected to a movable tool jaw by a connection linkage, the method including removing the moving handle and the stationary handle. A pneumatic actuator with a piston rod is added. The connection linkage is modified to extend between the piston rod and the movable tool jaw. A trigger is added between the pneumatic actuator and a source of pressurized gas. | 10-27-2011 |
20120325511 | AIR-INLET SWITCHING ASSEMBLY FOR A PNEUMATIC TOOL - An air-inlet switching assembly for a pneumatic tool having a gun shaped shell and a cylinder, the air-inlet switching assembly is mounted in the shell below the cylinder and has a selector valve and a switching stem. The selector valve is rotatably mounted in an inlet tube of the shell below the cylinder, selectively communicates one of the passageways of the cylinder and has a clamping protrusion and a valve seat. The clamping protrusion is formed eccentrically on and protrudes from the external surface of the selector valve. The valve seat is formed on and protrudes upward from a top of the selector valve and has a valve hole selectively communicating with one of the passageways of the cylinder. The switching stem is movably mounted in the shell, is connected securely to the selector valve and has a clamping arm connected securely to the clamping protrusion of the selector valve. | 12-27-2012 |
20130037292 | REVERSING ACTUATING MODULE FOR A RECIPROCATING PNEUMATIC TOOL - A structure of a reversing actuating module of reciprocating pneumatic tools adopts an adaptation between the stage-shaped reversing block and the stage-shaped receiving groove. The bottom end of the air inlet flow path configured in the center of the air pressure inlet seat is not connected to the stage-shaped receiving groove through a straight hole, but a twisted hole formed through the inclined hole configured in the air pressure inlet seat to connect the air inlet flow path alternatively. Further, the diameter of the lower end of the inclined hole is partially enlarged so that the auxiliary ventilating part is corresponded to the area of expanding groove of the stage-shaped receiving groove. The structure can omit the configuration of a spacing ring component, while maintaining the function of reversing actuation. Therefore, the present invention can help to reduce production and processing cost, assembly time, and defect rate. | 02-14-2013 |
20130126200 | INTEGRATED CYLINDER AND REVERSING ASSEMBLY OF A RECIPROCATING PNEUMATIC TOOL - A reciprocating pneumatic tool has an integrated module of a cylinder and flow reversing assembly. The tool allows the reversible actuating slot to be recessed integrally onto the air pressure guiding seat. The air pressure guiding seat is separated from the cylinder body via a partition board. Compared with the prior art, the partition board, air pressure guiding seat's assembly end surface and cylinder body's inner assembly end can be grinded precisely to realize accurate fitness of various components. The partition board of a planar sheet permits very easy and precise grinding, so the integrated module of cylinder and flow reversing assembly enables simplification of the processing and mass production, reduction of the fabrication/processing cost, and shortening of the assembly time and minimization of the defect with better applicability and industrial benefits. | 05-23-2013 |
20140034345 | VARIABLE SPEED CONTROL OF FLUID DRIVEN MOTORS - An apparatus is disclosed that includes a fluid inlet in fluid communication with a valve assembly, the valve assembly structured to selectively permit the flow of a motive fluid from the fluid inlet to a fluid driven motor, wherein the valve assembly further includes a first plunger including a plurality of axially extending fluid channels, wherein the plunger is selectively movable by an actuator in a manner such that as the plunger is displaced farther away from a closed position, the number of axially extending fluid channels placed in fluid communication with the fluid inlet increases, and wherein the axially extending fluid channels permit the flow of the motive fluid from the fluid inlet to the fluid driven motor. | 02-06-2014 |
20140090861 | Pneumatic Tool Having a Two-Stage Trigger Device - A two-stage trigger device includes a trigger mounted on a body. Upon application of an external force, the trigger is rotated from a first position to a second position to move a rod member along an axis by a first distance, so as to open a passage to a predetermined degree. When the trigger reaches the second position, and when application of the external force is continued, at least one portion of the trigger moves in the body to move the rod member along the axis by a second distance, such that the opening degree of the passage is increased gradually. | 04-03-2014 |
20140110142 | PNEUMATIC TOOL HAVING A TWO-STAGE FLOW CONTROL - A pneumatic tool includes a body, a switch valve, and a trigger. The body has a passage. The switch valve includes a plug sealing the passage, a plug rod connected to the plug, and a rod member extending in the body along an axis for driving the plug rod and the plug, such that movement of the rod member in the body in a direction results in a gradual increase in flow rate of the gas in the passage. The plug rod is connected to the rod member such that an angle is formed therebetween. The trigger includes a first plate and a second plate. The first plate is operable manually to covert between a first position whereat the second plate cannot be driven by the first plate, and a second position whereat the second plate can be driven by the first plate. | 04-24-2014 |
20150306746 | PNEUMATIC TOOL USING SINGLE CONTROLLER FOR BOTH FORWARD/REVERSE SWITCHING AND SPEED ADJUSTMENT - A pneumatic tool includes a housing that contains an installation tunnel, an air supplying channel and first and second air inlets, a control valve installed in the installation tunnel for shifting among first, second and third positions; a controller that is mounted on the control valve and has two paddles; a pushing rod that passes through the controller and the control valve; and a trigger that is attached to the pushing rod. The pneumatic tool provides the controller for a user to selectively operate with his/her left hand or right hand to perform forward/reverse switching and speed adjustment. | 10-29-2015 |
20180021933 | STEERING-SWITCHING AND HANDS-CHANGING ASSEMBLY FOR A PNEUMATIC TOOL | 01-25-2018 |