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7628220 |
Impact motorized wrench
An impact motorized wrench includes a tool-holder shaft arranged on a front side of the wrench and pivoting around a rotation axis, a rotary motion producing motor unit arranged on a rear side of...
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7607492 |
Electric motor impact tool
An electric impact tool in which a rotating mass rotates in a forward direction to impact upon and transfer torque to an anvil, and rotates in a reverse direction opposite the forward direction in...
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7604640 |
Device and system for applying rotary impact
A device and system for applying rotational impact to screws implanted in bony tissues. Specifically, embodiments of the present disclosure may provide medical professionals the ability to apply...
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7594550 |
Pneumatic hand tool
A compact pneumatic hand tool having a cylinder assembly received in a space of a body, wherein, the bottom inlet opening of the cylinder assembly is communicated with the air inlet in the space,...
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7588093 |
Impact mechanism
An impact mechanism comprises a drive motor engaging member and a tool bit retaining member rotatably inter-connected therewith. The tool bit retaining member has a main body portion, an anvil...
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7562720 |
Electric motor impact tool
An electric impact tool in which a rotating mass rotates in a forward direction to impact upon and transfer torque to an anvil, and rotates in a reverse direction opposite the forward direction in...
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7533889 |
Fitting device for a machine tool with a tool holder, and a tool holder
A fitting device for a machine tool has a tool holder for a hand-guided machine tool, for receiving insertion tools. The tool holder forms a releasable sliding fit with a drive tube.
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7510023 |
Impact assembly for a power tool
An impact assembly is used for a power tool having a chamber, a handle and a rotary driver mounted in the chamber near the handle and having a driving shaft. The impact assembly has a hammer frame,...
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7484569 |
Pulse tool
A pulse tool, in particular a pulse nutsetter, has at least one pneumatic drive unit with a drive rotor and a pulse unit driven by the drive unit, wherein a delay-dependent inertial cut-off device...
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7461704 |
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...
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7461703 |
Air-inlet controlling assembly for a pneumatic tool
An air-inlet controlling assembly for a pneumatic tool having a gun shaped shell with a chamber and a handle communicated with the chamber has an air-inlet assembly, a cylinder assembly and a...
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7455121 |
Power tool
A power tool includes an impact damping mechanism for damping an impact in a direction of rotation of a speed reduction mechanism portion 8.
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7438140 |
Shock attenuating device for a rotary impact tool
A shock attenuating coupling device is provided for a rotary impact tool for drivingly connecting a hammer mechanism to a drive anvil. The shock attenuating coupling device includes a first...
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7424919 |
Method for determining the angular movement of the output shaft of an impulse nut runner at tightening a screw joint
A method for determining the angular displacement of the output shaft (φ 0 ) of an impulse nut runner at tightening a screw joint to a predetermined final torque level (T f ) by an impulse nut...
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7410007 |
Impact rotary tool with drill mode
An impact rotary tool is provided that is switchable between an impact mode where the tool delivers an impacting torque on an output tool and a drill mode where the driver delivers a smooth output...
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7404450 |
Pneumatic rotary tool
A pneumatic rotary tool has a housing formed primarily from plastic so that the weight and price of the tool are substantially reduced. The air motor is formed for economic assembly while...
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7398836 |
Pneumatic power tool with adjustable exhaust air outlet detector
A pneumatic power tool includes a housing, a motor, a pressure air inlet passage, an exhaust air outlet passage, and an exhaust air outlet flow deflector. The exhaust air outlet flow detector...
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7395873 |
Power tool
A power tool includes a grip portion having a vertically extending axis; a main body provided at a top end of the grip portion and having an axis intersecting the vertical axis; a motor; an output...
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7377019 |
Method and apparatus for fastening together structural components
A method and apparatus for fastening a first relatively soft structural component such as a wood panel to a second relatively hard structural component such as a steel angle iron using fasteners...
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7377331 |
Damping driving axle
A damping drive axle includes an output shaft divided into a first portion and a second portion, a mounting seat having a centrally defined hole, a first compartment to correspond to and receive...
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7357194 |
Percussion power tool
A percussion power tool includes a motor ( 6 ) located in the tool-housing ( 4 ) for driving the output member ( 12 ) and the percussion mechanism ( 10 ), a chuck ( 20 ) for receiving a working...
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7331404 |
Lubrication system for impact wrenches
A lubrication apparatus, system and method for a tool is disclosed. The tool includes a rotating impact assembly and the lubrication apparatus, system and method directs lubricant from a radially...
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7325627 |
Air tool
A center portion of a handle housing portion 3 is arranged with a pressure reducing valve mechanism portion 50 for reducing a pressure of high pressure compressed air to be surrounded by an...
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7258048 |
Manually operated impact wrench
A manually operated impact tool is provided and includes: an impact mass; an anvil rotatably disposed relative to the impact mass; an input member operatively connected to one of the impact mass...
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7255257 |
Pneumatically operated power tool having mechanism for changing compressed air pressure
A pneumatically operated power tool such as a screw driver, a nail gun and an impact wrench those being driven by a pneumatic pressure. A pressure reduction valve is provided between a connector...
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7249638 |
Impact wrench anvil and method of forming an impact wrench anvil
An anvil adapted to be received within an impact wrench comprises a round body and a square head. The square head is formed at an end of the round body. A tapered ramp extends from the round body...
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7237621 |
Driving device
A driving unit comprises a pneumatic head for being combined to a pneumatic tool; a front end of the pneumatic head being installed with a push rod; a driving unit having a slender driving rod at a...
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7237622 |
Pneumatic tool having pressure release device
A pneumatic tool includes a rotor rotatably received in a housing, a driving shank coupled to the rotor, for being rotated by the rotor and by a pressurized air and having one end for driving a...
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7225884 |
Hand power tool, in particular drilling screwdriver
A hand power tool has a tool spindle rotatable by a drive train, a cam device located in the drive train and having two cam discs in engagement with one another for transmitting axial percussion...
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7216723 |
Pulse torque generator and power tool having the same
A pulse torque generator utilizing a magnetic coupling, and an electric power tool provided with the pulse torque generator. The pulse torque generator includes an input shaft extending in its...
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7213659 |
Impact drill
An impact drill includes a first ratchet together with a spindle and movable in an axial direction, and a second ratchet engageable with the first ratchet. The second ratchet can be moved in the...
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7207394 |
Intermediate and assembly assistance components for fluid driven tools and tools incorporating the same
A flow guide configured for insertion in a cavity defined between an outer housing and a nested inner motor housing of a fluid driven tool. The flow guide defines a longitudinal axis and includes...
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7207393 |
Stepped drive shaft for a power tool
A shaft comprises an input portion and a tang. The tang has a first section, a second section, and a radial bore. The second section is disposed between the first section and the input portion...
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7198116 |
Wholly air-controlled impact mechanism for high-speed energy-accumulating pneumatic wrench
A wholly air-controlled impact mechanism invented for creating a more compact and powerful pneumatic wrench comprises a flying hammer, a pressure impulse generator and a pressure container...
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7194938 |
Angular impact wrench
An angular impact wrench is disclosed. The angular impact wrench can comprise a lever that is rotatable about a pivot axis and a reciprocably movable ram that is operatively arranged with the lever...
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7191848 |
Rolling hammer drill
A hammer drill with rolling contact at the contact surfaces for transmission of axial force between a drive shaft and wave race. By using roller bearings, line contact is obtained. The area of...
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7185713 |
Air-driven screwdriver performs hole drilling, thread tapping and bolt tightening
A novel air-driven screwdriver is integrally designed to perform three functions, hole drilling, thread tapping and bolt tightening with special characteristic in which a passive inner gear...
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7182149 |
Pneumatic wrench having reinforced strength
A pneumatic wrench includes a pneumatic motor, a striking portion, and a drive shaft. The striking portion includes a support seat, a first pin, a second pin, a first hammer, and a second hammer....
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7174971 |
Clockwise or counterclockwise rotation control device of a pneumatic tool
The present invention discloses a clockwise or counterclockwise rotation control device installed to a pneumatic tool uses pressurized air as power. The pneumatic tool comprises a main body of the...
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7165631 |
Pneumatic wrench having enhanced strength
A pneumatic wrench includes a pneumatic motor, a striking portion, and a drive shaft. The striking portion includes a support seat, a first hammer, and a second hammer. Thus, the first hammer and...
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7152695 |
Power tool with air seal and vibration dampener
A power tool is provided including a resilient boot having a radial flange mounted in a seat formed by housing halves in order to provide a sealed barrier segregating air of an inlet vent of a...
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7147063 |
Double-ram striker assembly
A double-ram striker assembly including a shaft anvil having a shaft body on which two jaw blocks are disposed and two ring-shaped ram bodies coaxially fitted on the shaft body. The inner...
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7131503 |
Impact driver having a percussion application mechanism which operation mode can be selectively switched between percussion and non-percussion modes
An impact driver capable of boring and having an excellent usability is provided. An anvil( 8 ) is arranged so as to slightly move in the axial direction. A first cam( 29 ) having cam gears( 30, 30...
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7124839 |
Impact driver having an external mechanism which operation mode can be selectively switched between impact and drill modes
An impact driver in which a drill mode can be selected without fail is provided. In a hammer case, a connecting sleeve is provided so as to be slidable back and forth. At the backward position, the...
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7109675 |
Power tools
Battery-powered tools may include battery 1 or battery pack BP and a drive source (e.g., motor M) for generating power using current supplied from the battery. A switch 3 may electrically...
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7108079 |
Electric power tool
A cover which covers outer peripheries of fastening screws are disposed on an outer periphery of a hammer case. A stopper which detachably positions and fixes the cover to the outer periphery of...
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7104433 |
Safety apparatus of air impact driver
A nose ( 5 ) of an air impact driver ( 1 ) is mounted with a slidable contact nose ( 12 ) and by the contact nose, a contact valve ( 23 ) upward therefrom is operated to switch. An AND circuit...
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7093670 |
Impact drill
An impact drill minimizing transmission of vibration to a handle gripped by a user's hand. A spindle extends through a main frame and is movable in its axial direction and rotatable about its axis....
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7083003 |
Power tool with detachable drive end
A rotary tool includes a housing structure with a plurality of apertures therein, drive mechanism disposed within the housing structure, a detachable drive end mechanism coupled to the drive...
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7080696 |
Motor mounting and sealing arrangement for a power tool
A hand held electrical tool includes a gear casing for housing a drive mechanism, which gear casing comprises an entrance. The tool's motor includes an armature shaft having an end at which a...
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