Abstract: A throttle valve device for a pneumatic power tool comprises a casing (10) with an air inlet passage (11), an air outlet passage (12), a valve chamber (13) with a main valve seat (14) and a main valve element (15), and a manually shiftable activating rod (21) which is sealingly guided in a lateral guide way (19) and arranged to engage and displace the main valve element (15) off the main seat (14), wherein the activating rod (21) has a valve portion (27,28) for co-operation with a secondary valve seat (24) in the guide way (19) for controlling a bypass passage (23,24,29) extending between the inlet passage (11) and the outlet passage (12) such that the activation rod valve portion (27,28) is separated from the secondary valve seat (24) and opens up the bypass passage (23,24,29) before the activation rod (21) engages and displaces the main valve element (15) off the main seat (14) when operating the activation rod (21) in the opening direction.

Abstract: A pneumatic tool with settable safety function, including: a main body having a flow way for a fluid to flow into the main body to drive a pneumatic cylinder; a switch disposed in the main body for blocking the flow way in normal state; a trigger disposed on the main body for triggering the switch; a safety device movable between an activation position and a non-activation position; and a switching button connected with the safety device and switchable to position the safety device in the activation position or non-activation position. When the safety device is positioned in the activation position, the trigger can be pulled to shift the switch to activate the pneumatic tool, while when the safety device is positioned in the non-activation position, the trigger cannot be pulled to shift the switch so as to provide a safety effect.

Abstract: A pneumatic tool includes a housing, a driving mechanism, a rear cap, a direction controller, a speed controller, and an operating member. The housing is formed with a component chamber and an intake passageway. The driving mechanism includes an output shaft rotatable about a rotary axis. The rear cap defines a cap chamber in spatial communication with the component chamber, and has a connecting passageway that intercommunicates the cap chamber and the intake passageway. The direction controller and the speed controller are mounted in the cap chamber for rotation about the rotary axis. The operating member is coupled to the direction controller, is accessible externally of the rear cap and the housing, and is operable to drive rotation of the direction controller about the rotary axis, thereby controlling direction of rotation of the output shaft. The speed controller is operable to vary torque and speed of the output shaft.

Abstract: A valve apparatus for an air tool which has a valve rotatably disposed in a cylinder portion of a body of the air tool in which an air motor is accommodated; and a lever fixed to the valve and slidably received within a slit-shaped opening formed in the cylinder portion. The valve includes a first disc portion having an air inlet, a lever-fixing portion having an air passage which communicates with the air inlet, and a second disc portion having an air outlet which communicates with the air passage. The lever-fixing portion is narrower than the first and second disc portions. The lever has a knob portion slidable within the opening and a generally U-shaped engagement portion fixed to the lever-fixing portion so that two legs of the engagement portion sandwich the lever-fixing portion from diametrically opposite sides.

Abstract: A switch mechanism for a pneumatic tool comprises a choke ring having an air hole disposed in an air passage of the pneumatic tool; A control rod is swayably inserted through the air hole with a first end of corresponds to a trigger of the pneumatic tool; A choke member is provided for insertion of a second end of the control rod and pushed by a spring to seal the choke ring. A bushing is disposed in an air passage and located between the choke member and the inner wall of the air passage of the base body and between the choke member and the choke ring. By such arrangement, the inner wall of the air passage of the base body and the choke ring can be avoided from being abraded by the choke member.

Abstract: An improved air inlet for pneumatic tools allows an air supply duct to supply compressed air smoothly to a pneumatic tool when in use at changing directions or angles without tangling with the pneumatic tool and affecting operation efficiency. The improved air inlet of the invention includes an air intake member which has one end connecting to the pneumatic tool and another end coupling with a rotary member in a turnable manner. The air supply duct is fastened to the rotary member and turnable therewith simultaneously to achieve the object desired.

Abstract: A pneumatic tool includes a shell with a chamber defined therein, a first passage communicated with the chamber and a second passage communicated with the chamber. A rotor is installed in the chamber for rotation when driven by pressurized air flowing into the chamber through the first passage. A shaft extends to the exterior of the shell from the rotor. A trigger is installed on the shell. A control device is put in the first passage and connected with the trigger for controlling the first passage. A muffler is put in the second passage. The muffler includes a plurality of balls.

Abstract: An attachment member (4) for connecting a hand grip with a housing part and a gearbox of an electric hand tool is formed of a flat base plate (11) for partitioning the housing part and the gearbox relative to the hand grip and formed with a first side (12) and a second side (13). Two passages (6.1, 6.2) form channels for guiding a fastener and extend perpendicularly to the second side (13) of the base plate (11). The attachment member (4) further comprises two air conveying elements (15.1, 15.2), which are arranged at an angle to the second side (13) and each has a curved deflecting section (22.1, 22.2), which projects from the second side on a radius (R) over an angular range (?). In addition, the attachment member (4) has a support for a detent spring (24) for a control knob for adjusting a gearing arranged in the gearbox.

Abstract: An air drill includes a body having a grip portion having an air supply passage and an air exhaust passage formed therein, a trigger portion formed above the grip portion and supporting a trigger, and a cylinder portion formed above the trigger portion and accommodating an air motor. A reverse valve is disposed within the cylinder portion in order to switch the direction of rotation of the air motor between forward and reverse directions. Two reverse levers are disposed in an upper portion of the reverse valve and slidably accommodated in two slit-shaped openings, respectively, which are formed in a grip-portion-side end of the cylinder portion.

Abstract: A controlling mechanism of pneumatic tool. The controlling mechanism is formed with a radial hole in which a speed adjustment button and a direction switching button are disposed. A pad member is disposed between the speed adjustment button and direction switching button. The speed adjustment button is formed with an axial through hole in which a pin member is inserted. One end of the pin member is formed with a through hole. A valve rod is passed through a through hole of an inlet passage of the main body of the pneumatic tool and inserted into the through hole of the pin member. When the pin member is driven, the valve rod is driven to bias a valve plate, whereby the air can get into the main body of the pneumatic tool.

Abstract: A pneumatic power tool comprises a housing (10, 11) with a motor and a pressure air inlet passage (12) and an exhaust air outlet passage (16) both extending through the housing (10, 11) and communicating with the motor, wherein the outlet passage (16) is provided with sound attenuating elements (36, 37) formed in a highly porous resinous material and arranged to be penetrated by the exhaust flow for exhaust noise reduction, and an exhaust flow diverting deflector (17) mounted at the outlet end of the outlet passage (16) and comprising a shell like body (18) with a cylindrical neck portion (19) rotatively received in the outlet passage (16), a concave flow guiding surface (28), and two parallel inner walls (30a, b) forming between them a main flow passage (31) and between them and the shell body (18) two narrow secondary flow passages (32a, b) for accomplishing noise dampening low velocity air flow shields on both sides of the main flow.

Abstract: A muffler is received in a passage of an end member connected to a handle of the staple gun and a fitting extends from the end member so as to be connected to a hose. The muffler includes a tubular body and a plurality of plates extend from an end of the tubular body. The plats extend toward an interior of the handle and form a bullet-head-shaped arrangement. Gaps are defined between the plates and become smaller when air goes outward from the handle so as to reduce noise.

Abstract: Disclosed herein is a fluid control system for varying the power available to a fluid powered tool, a hydraulically driven impact wrench. The system disclosed herein varies power available to the tool by use of a bypass mechanism that is downstream of a directional control valve spool. Among other things, the advantageous placement of the bypass valve limits the thermal burden in the hydraulic circuit.

Abstract: An airway airtight structure of pneumatic tool, including: a main body having a body section, a cylindrical chamber being formed in the body section, an inlet being formed in a predetermined position of a wall of the chamber for communicating with an incoming passage of the pneumatic tool; a cylinder member having a hollow cylindrical body coaxially accommodated in the chamber, a wall of the cylindrical body being spaced from the inlet; and a connecting section positioned in a position where an opening of the inlet is directed, the connecting section being sandwiched between the cylindrical body and the wall of the chamber. The connecting section includes two mating bodies mated with each other. A connecting face is positioned between the opposite mating ends of the mating bodies and inclined from the axis of the cylindrical body by a predetermined inclination angle. A connecting airway is formed on the mating bodies and extends through the connecting face to communicate with the inlet.

Abstract: A bidirectional pneumatic impact wrench has a pneumatic motor and an air control valve. The pneumatic motor has a forward air inlet and a reverse air inlet. The air control valve directs compressed air selectively into either the forward air inlet or the reverse air inlet to change the direction of rotation of the pneumatic motor and includes a rotatable shaft. The shaft has an exterior surface and a spiral forward air groove and reverse air groove that are symmetrically defined in the exterior surface to direct the compressed air efficiently. The air control valve is simple to fabricate and directs the compressed air efficiently into the pneumatic motor to improve power and efficiency of the pneumatic motor.

Abstract: Generally, a pneumatic rotary tool of the present invention comprises a housing formed of a plastic material and includes a motor receptacle having a front end and an open rear end. An air motor is disposed within the motor receptacle of the housing. An air inlet passage extends to the motor for delivering pressurized air to the motor to power the motor to drive an output shaft. An end plate of the motor has air passaging formed therein, at least part of the air passaging defining a portion of the air inlet passage. A torque selector is at least partially received in the end plate and includes a portion disposed in the air passaging defined in the end plate and at least partially blocking the flow of air in the air passaging except through the portion of the torque selector.

Abstract: Disclosed herein is a fluid control system for varying the power available to a fluid powered tool, such as a hydraulically driven impact wrench. The system disclosed herein varies power available to the tool by use of a bypass mechanism that is downstream of a directional control valve spool. Among other things, the advantageous placement of the bypass valve limits the thermal burden in the hydraulic circuit.

Abstract: A pneumatic nail driver includes a main body having a cavity defined for receiving a spring and a sleeve that has an annular groove defined in an outer periphery of the sleeve. A passage is defined in the main body and selectively communicates with the annular groove for allowing the compressed air flow into the sleeve. A block and a cylinder are sequentially received in the cavity. A striker is reciprocally movably received in the cylinder due to the block and the compressed air. A shaft partially longitudinally extends into the cylinder and the striker is moved to strike the shaft for driving the nail when the shaft and the cylinder are backward pushed to make the annular groove communicate the passage to guide the compressed air flowing to the cylinder for pushing the striker.

Abstract: An air-guiding structure for an air sander includes a muffler assembly integrally formed from plastic material, a main passageway and a sub-passageway formed in the muffler assembly, a dust collection port formed at a bottom end of the sub-passageway, and a baffle integrally formed within the main passageway to divide the main passageway into a front section and a rear section. One side of the main passageway communicates with the sub-passageway, and the main passageway has a joint port and an exhaust port opposite to the joint port. The joint port and the dust collection port of the muffler assembly connect to the outlet port and joint port of the air sander, respectively. The baffle is formed with a predetermined number of thin holes to communicate the front section with the rear section, wherein the rear section of the main passageway communicates with the sub-passageway.

Abstract: A pneumatic tool including a housing defining an interior, an air motor positioned to lie in the interior, an air exhaust conduit having an interior conduit wall defining an air exhaust passageway. The air exhaust passageway is in fluid communication with the air motor. The pneumatic tool also includes sound-absorbing material defining a muffler passageway there through. The material is positioned to lie within the air exhaust conduit such that the muffler passageway is aligned with the air exhaust passageway and the material lines the interior conduit wall, such that the muffler passageway passes exhaust air there through.

Abstract: An improved air intake and exhaust device for a pistol type air impact wrench which does not discharge its exhaust air into the atmosphere directly from the end of its handle, but discharges it into the atmosphere at a considerable distance from the end of its handle to prevent any dust, etc. from rising at the site of work and any noise from being produced and thereby improve the working environment. In an air in-take and exhaust device for a pistol type air impact wrench having at the end of its handle an intake port and an exhaust port for compressed air for operating an air motor, a silencing bellows tube surrounding an air intake tube connected to the intake port is attached to the end of the handle and the silencing bellows tube and the air intake tube define an annular passage therebetween as an air exhaust passage.

Abstract: A pneumatic power tool including a housing formed to include a handle, an air motor positioned within the housing, and an air inlet passage through the handle, the air inlet passage being connectable with a source of pressurized air. The pneumatic power tool also includes a tilt valve positioned in the air inlet passage to control airflow through the tool. The pneumatic power tool also includes a rotatable reverse valve positioned within the housing, the reverse valve being rotatable between a first position to operate the motor in a first direction and a second position to operate the motor in a second direction, which is opposite the first direction.

Abstract: There is provided an hand-held pneumatic tool which has a body, a tool fitted to the lower end of the body and a handle at the upper end of the body. The handle is connected to the body by a resilient connection means which permits relative actual movement between the handle and the body.

Abstract: A nailing machine comprises a machine body including a driving unit for driving a nail, a handle having an inner hollow portion formed as an accumulation chamber, the handle having one end mounted to the driving unit and another end to which a compressed air inlet port is formed, a filter disposed inside the accumulation chamber of the handle, and a nose portion mounted to the driving unit through which the nail is driven. The compressed air inlet port has an opening area smaller than a cross sectional area of an inner periphery of the handle, and the filter element is disposed in close contact to the compressed air inlet port.

Abstract: An air drill includes a body having a grip portion having an air supply passage and an air exhaust passage formed therein, a trigger portion formed above the grip portion and supporting a trigger, and a cylinder portion formed above the trigger portion and accommodating an air motor. A reverse valve is disposed within the cylinder portion in order to switch the direction of rotation of the air motor between forward and reverse directions. Two reverse levers are disposed in an upper portion of the reverse valve and slidably accommodated in two slit-shaped openings, respectively, which are formed in a grip-portion-side end of the cylinder portion.

Abstract: An air-input speed regulator for pneumatic tool includes an air intake connector having a seat and a tubular portion, and a regulating knob rotatably mounted around the connector. An axial channel is provided at one side of the seat of the connector for elastically receiving a steel ball therein, and front and rear air holes are axially sequentially formed on the tubular portion. The regulating knob includes a tube portion, a front end of which is formed into steps gradually lowered in a circumferential direction, and hollow projections spaced along an inner wall surface corresponding to the steps for engaging with the steel ball on the connector to locate the regulating knob in place. By turning the regulating knob, one of the steps is brought to cover the rear air hole by different extent and therefore changes the amount and speed of air flown to the pneumatic tool.

Abstract: The pneumatic tool includes a housing which encloses a majority of the pneumatic tool. The housing is comprised of a body and a handle depending from the body and defining an input air passageway. A reversing valve lies partially disposed within the housing, intermediate the body and the handle. The body defines a preferably cylindrical motor cavity communicationg at its bottom with the input air passageway and at its top with an exhaust passageway located above the motor cavity. A pneumatic motor is disposed within the motor cavity. The pneumatic motor can include front and rear plates, a rotor rotatively suspended between the plates, and a cylinder disposed between the plates and in sealed engagement thereto. The cylinder has an upper portion with an exhaust port communicating with the exhaust vent and a lower portion with an air inlet communicating with the input air passageway to provide a substantially diametral airflow path through the motor.

Abstract: A pneumatic rotating tool is disclosed wherein the amount of air discharged is adjusted with a finger of the hand which holds the tool, thereby making it possible to adjust the rotational speed of the air motor incorporated in the tool. Rotation of a cylindrical regulator relative to a cylindrical housing is limited to an angle through a predetermined range centered on an axis of the cylindrical housing. The regulator is formed with a cutout portion and a depression both for opening exhaust holes formed in the motor body. The regulator is further formed with thick-wall portions for closing the exhaust holes.

Abstract: An automatic shut-off of a vacuum line for a tool having a first hose portion and a second hose portion, the portions of hoses being in fluid communication with each other. A first member is disposed in the first hose portion and the first member is moveable between a first position and a second position. A valve is disposed in the second hose portion, wherein the valve is movable between an open position and a closed position. A second member operatively interconnects the first member and the valve. The first member operatively moves said second member to open and close the valve. When the tool is being operated the first member will move, thus opening the valve, to allow a vacuum through the tool. Also, the automatic shut-off significantly reduces noise produced by the tool during operation.

Abstract: A throttle valve for hydraulically or pneumatically operated tools is proposed, comprising a valve housing which receives a throttle part and is arranged between the tool and the power fluid line, a first and a second apparatus being arranged to be in operative connection with the valve housing, the second apparatus being arranged to be actuatable to regulate the drive only after an intentional actuation of the first apparatus to prevent inadvertent or unauthorized actuation, the first apparatus having at least a first release mechanism for initial unlocking and a second release mechanism for further unlocking, the release mechanisms being movable in two directions (x, y) extending perpendicularly to one another, and the second apparatus for regulating the drive being arranged to be movable in a direction of rotation (z) extending parallel to the x direction.

Abstract: A pneumatic tool is provided having a housing with an exhaust passageway and a handle. The handle has an inlet that receives the housing, an outlet having at least one exhaust port, and an interior surface that defines an exhaust chamber. The exhaust passageway, exhaust chamber, and the at least one exhaust port are sequentially in fluid communication when the housing is inserted into the handle. A seal disposed between the interior surface of the handle and the housing, the seal being located between the exhaust chamber and the inlet. Also provided is a handle substrate with an inlet that receives the housing and an interior surface that defines an exhaust chamber. The exhaust chamber is in fluid communication with the exhaust passageway when the housing is inserted into the handle. An endcap is removably attached to the handle and has an outlet with at least one exhaust port in fluid communication with the exhaust chamber. A seal is disposed at an interface between the handle and the endcap.

Abstract: A forward/reverse mechanism and a pneumatic pressure operated power tool incorporating the mechanism are provided. The mechanism includes a rocker button having two lever portions and an actuator disposed next to one lever portion or a pair of actuators disposed next to both lever portions for engaging and rotating opposite sides of a periphery of a rotary valve spool for effecting rotation of the rotary spool in response to movement of the rocker button.

Abstract: A housing for a pneumatic tool includes a head portion, a middle portion, and a handle portion. A sleeve is disposed over the middle portion of a pneumatic tool with a rear portion of the sleeve spaced from the outer surface of the housing. A grip made of pliant material, preferably rubber or a synthetic rubber compound encloses the handle portion. The grip includes a front lip, and a rear flange. Once fully inserted on the handle, the sleeve and the external surface of the housing cooperate to retain the front lip therebetween, preventing the front lip from peeling off the handle portion. An adaptor engages an air inlet at a distal end of the handle portion. The adaptor can include a washer engageable with the air inlet for limiting the depth of insertion of the adaptor in the air inlet and for inhibiting rearward movement of the grip.

Abstract: A pneumatic tool housing is provided having storage for an embedded electronic device. The pneumatic tool has a gas inlet for supplying a motive gas stream to the tool and an exhaust outlet for exhausting the motive gas stream from the tool. A compartment is provided for an electronic device wherein the compartment is in fluid communication with at least a portion of the motive gas stream. Also provided is a pneumatic tool housing having storage for an embedded electronic device with a compartment for an electronic device having at least one electrical lead wherein the compartment is covered by a component part of the pneumatic tool during operation.

Abstract: A hand-held pneumatic rotary drive tool having an adjustable exhaust. The tool has an elongate housing containing a pneumatic motor. The housing has an inlet passage for pressurized air at the rearward end of the housing and air delivery passaging for flow of pressurized air to the motor. A rotary connector on the housing at the inlet passage permits connection to an air hose. The housing also has an air exhaust passage for exhausting air from the motor. An air deflector for exhausting air exiting the exhaust passage is rotatable around the connector for deflecting exhaust air laterally outward in a selected direction away from a user holding the tool.

Abstract: A pneumatic tool has a housing with an external surface and defining a plurality of cavities therein to hold components of the pneumatic tool. The housing defines a motor cavity wherein a pneumatic motor is disposed. Two spaced-apart vents extend from the motor cavity to the external surface of the housing, and a muffler is mounted adjacent to one vent. A tubular sleeve, which includes a radially extended discharge portion from which exhaust may escape, is mounted on the external surface of the housing and cooperates with it to define an annular exhaust passageway. The sleeve is rotatable between muffled and unmuffled positions wherein the discharge portion is respectively adjacent to the one vent or the other.

Abstract: A portable power tool having a housing with a pneumatic motor, an output shaft extending in a longitudinal direction of the housing and connected to the motor, and a pistol type handle which a power supply for connecting the motor to a power source and which is fixable relative to the housing in alternate longitudinal positions. The housing is provided with an outer cylindrical surface with a geometric axis extending in the longitudinal direction of the housing, and the handle comprises a tubular portion with an inner cylindrical surface for guiding support of the housing surface. Locking elements are provided for arresting the handle relative to the housing in any desired position, and interacting air communicating passages are provided in the contact surfaces of the housing and the handle for conducting air to and from the motor irrespective of the actual longitudinal position of the handle relative to the housing.

Abstract: A fluidic connector comprises an independent adjunct to a pneumatic tool and is adapted to be fluidically interposed between an air supply hose and a fitting of the pneumatic tool. The connector comprises a piston-type valve member. Exhaust generated from each fastener firing operation or cycle maintains the piston-type valve member at a first position so as to permit the incoming air supply to reach the tool, however, if the tool is not fired within a predetermined period of time, the piston-type valve member is automatically moved to a second position which prevents the air supply from reaching the tool thereby disabling the same.

Abstract: The present invention provides a reversing valve assembly for selecting the direction of a motor that rotates in a forward direction and a reverse direction. The reversing valve assembly includes a push button that extends outwardly from the tool in a first position, and self-locks when depressed towards the tool in a second position. When it is desirable to return to the forward direction, the reverse valve assembly is releasable from the second position by further depressing the push button towards the tool and releasing the push button, thus controlling the direction of the motor by depressing and releasing the single push button.

Abstract: A pneumatic tool assembly is disclosed. The assembly includes a swivel backhead that is connected to a pneumatic tool using a retainer ring and two slip rings. One of the slip rings is placed between the swivel backhead and the pneumatic tool and allows the swivel backhead to rotate with respect to the pneumatic tool. The second slip ring is positioned between the swivel backhead and the retainer ring and allows the swivel backhead to rotate with respect to the retainer ring. An L-shaped handle is rotatably connected to the swivel backhead for use in holding and operating the pneumatic tool. A locking mechanism is connected to the handle and includes a hand retractable spring loaded plunger. The retainer ring includes a plurality of locking openings for receiving the plunger. The plunger is used to fix the swivel backhead at a desired position by inserting the plunger into one of the locking openings in the retainer ring.

Abstract: A flat tilt valve for a pistol air tool, such as a pistol air screwdriver, which includes a flat tilt valve which is actuated substantially parallel to the sealing face of the flat tilt valve and which is positioned at the rear of the pistol air tool upstream of the air vane motor to create a common air path. Such a design allows the use of multiple air inlets in the same pistol air tool and makes it easy to mold or cast air inlets from both the bottom and the top and, if desired, the rear of the pistol air tool. The reconfiguration of the actuation rod on the tilt valve for a pistol air tool provides a slender profile and minimizes the overall length of the pistol air tool.

Abstract: A valve assembly of a pneumatic nailer includes a ring received in the chamber and pin of a seal member extends through the ring and is connected to a trigger of the nailer. The seal member has a rod extending from a bottom thereof so as to engage with a first end of a spring. A second end of the spring is engaged with a locking member which is connected to the chamber. An annular seal extends from a top surface of the seal member so as to contact the bottom of the ring to seal the contact area between the ring the seal member.

Abstract: A pneumatic rotary tool including a housing and an output shaft projecting from the housing for transmitting torque to an object. An air motor drives rotation of the output shaft in the forward and reverse directions. Air passages extend from an air inlet to the motor for delivering pressurized air to the motor. A spring biases the lower portion of a valve within the air passage in a closed position, to restrict the flow of air through the air passage. The upper portion of the valve comprises a stem. When an operator squeezes a trigger on the pneumatic rotary tool, a deflector connected to the trigger deflects the stem to a first angularly deflected position, the valve thereby allows a relatively low rate of air flow to the motor for low-speed operation thereof. As the operator continues to squeeze the trigger, the stem is deflected to a second angularly deflected position, allowing a relatively high rate of air flow to the motor for high-speed operation thereof.

Abstract: A pneumatic tool housing is provided having storage for an embedded electronic device. The pneumatic tool has a gas inlet for supplying a motive gas stream to the tool and an exhaust outlet for exhausting the motive gas stream from the tool. A compartment is provided for an electronic device wherein the compartment is in fluid communication with at least a portion of the motive gas stream. Also provided is a pneumatic tool housing having storage for an embedded electronic device with a compartment for an electronic device having at least one electrical lead wherein the compartment is covered by a component part of the pneumatic tool during operation.

Abstract: A pneumatic tool having a housing with at least one exhaust opening and a speed regulating apparatus. The speed regulating apparatus has a cap that is removably mounted on the housing and has at least one exhaust port in fluid communication with the at least one exhaust opening. A control ring is provided having at least one aperture in fluid communication with and rotatably mounted over the at least one exhaust port, with the control ring being movable to variably open and close the at least one exhaust port.

Abstract: An air outlet regulating mechanism for a pneumatic tool includes a long vertical and a short horizontal air-out passage provided in a handle and a body of the pneumatic tool, respectively, and a regulating valve mounted in the pneumatic valve at a convergence point of the two air-out passages and a body air-out passage typically provided in the pneumatic tool. The regulating valve includes a knob accessible from outside of the pneumatic tool and a long stopper movable between a first and a second position through turning of the knob. The long stopper in the first position fully blocks the vertical air-out passage for air in the pneumatic tool in operation to discharge via the short horizontal air-out passage to increase the torque force of the pneumatic tool.

Abstract: A pneumatic powered winch actuating device for tightening a winch using a pneumatic tool. The pneumatic powered winch actuating device includes an air wrench. The air wrench is couplable to an air supply hose. A shaft is rotatably coupled to the air wrench. The shaft has a first portion and a second portion. The first portion is positioned adjacent to the air wrench, and the second portion has a threaded peripheral wall such that threads extend outwardly from the shaft. The air wrench selectively rotates the shaft in a first direction. A winch engaging member includes a casing securely attached to the air wrench such that the shaft extends into the casing. A coupling member has a well extending therein and has a size adapted for releasably receiving and coupling to a cylinder. The cylinder is securely attached to a winch. A rod is integrally coupled to and extends away from the coupling member. The rod extends through the casing such that the rod is rotatably coupled to the casing.

Abstract: The present invention relates to a power tool having a housing, a handle having an inlet passage and an outlet passage extending therethrough, and a pneumatic pressure seal/vibration isolator positioned between the handle. The present invention provides a tool that has an excellent handle to housing seal and does not exhibit heavy vibrations. The present invention is also the vibration isolator that seals the handle to the motor housing and reduces vibrational transmissions to a user. Also disclosed is a power tool having a vibration isolator coupled to the housing and handle, and a mechanism for allowing sliding rotation of the handle relative to the vibration isolator, thereby allowing the handle to point in a different direction other than toward the point of impact.

Abstract: An air supply and exhaust system comprising a pneumatic tool, an air supply source, an exhaust apparatus, and at least one double-pipeline air hose. The exhaust apparatus includes a filter through which exhaust from the pneumatic tool passes and is provided apart from the pneumatic tool. The double-pipeline air hose includes two pipelines and connects the pneumatic tool and the air supply source, wherein one of the pipeline is for air supply to the pneumatic tool and the other of pipeline is for exhaust from the pneumatic tool.

Abstract: A multistage push button for a pneumatic tool is provided to control the magnitude of air pressure introduced into the pneumatic tool at different stages. The push button includes a main rod movably mounted in a seat of the push button and having a diameter-reduced middle portion and an inclined shoulder portion behind the middle portion. The seat has at least a press spring set therein to normally push a steel ball into the seat. When the main rod is pushed inward with the inclined shoulder portion contacting with the steel ball, an innermost section of the main rod having a larger outer diameter is moved out of the seat to admit a smaller amount of air into the pneumatic tool. And when the inclined shoulder portion pushes the steel ball radially outward, a next inner section of the main rod having a smaller outer diameter is moved out of the seat to admit more air into the pneumatic tool.