Famous Patents
The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8104545 | Handgrip for a pneumatic machine for machining surfaces A handgrip (1) for pneumatic machines (2) for machining surfaces, includes adjacent to one another, a delivery pipe (3) and a discharge pipe (4) for discharging the compressed air. The handgrip (1) consists of a first side cap (... | 01/31/2012 |
| 7886840 | 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... | 02/15/2011 |
| 7753136 | Reciprocating pneumatic tool mechanism The present invention provides a reciprocating pneumatic tool mechanism, including a casing, pneumatically-operated control module, control switch, actuating module and vibration-absorbing member. The plates of the actuating module are combined into a single body by... | 07/13/2010 |
| 7475739 | Hand-held machine tool comprising a dust box A power tool (10) with a housing (12) that includes a dust box (50, 150) and a motor (20) with air cooling, and a cooling exhaust-air duct (44, 46) and a chip suctioning duct (40) which guides a chip-suctioning flow can be u... | 01/13/2009 |
| 7464768 | Intake and exhaust guide device for pneumatic tool An intake and exhaust guide device for pneumatic tool including a handle, a pressure shunt connector, and two pressure tubes. The handle has a cylindrical hole. The pressure shunt connector is inserted into an outer end of the handle. The pressure shunt connector ha... | 12/16/2008 |
| 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 includes an outlet piece with radial as well as axial outlet openings and ... | 07/15/2008 |
| 7396197 | Force-balanced air supply for pneumatic tools The non-axial force exerted on a pneumatic tool by a non-axial air supply is balanced to allow for uniformly radially distributed compliance forces on the tool. An annular air ring is disposed around the pneumatic tool, covering an air inlet port. Air is supplied by... | 07/08/2008 |
| 7373992 | Automatic pressure regulating valve for a pneumatic tool A pressure regulating air valve assembly (100) for a pneumatic tool (90) is disclosed that is movable between an open position and a closed position such that the maximum pressure in the tool is limited to a predetermined value. The valve assembly incl... | 05/20/2008 |
| 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 exhaust chamber 40, in a state of making a trigger 3... | 02/05/2008 |
| 7318487 | Pneumatic tool with an adjustable clip A pneumatic tool has a body, a handle, a clip, a biasing member and a cap. The handle is formed on and extends from the body and has a free end and an annular shank extending from the free end. The clip is rotatably and slidably mounted on the shank and has a collar... | 01/15/2008 |
| 7316341 | Adjustable exhaust assembly for pneumatic fasteners An adjustable exhaust assembly for a pneumatic fastener includes a base, which includes a base plate and a protrusion protruding from the base plate. The protrusion is centrally hollow and includes an inner surface and an outer surface. The base plate includes an in... | 01/08/2008 |
| 7278561 | Oil free head valve for pneumatic nailers and staplers The present invention provides a head valve assembly for a pneumatic fastener including a piston assembly reciprocated within a cylinder assembly for driving a fastener and a housing having an end cap for at least partially enclosing the head valve assembly. The hea... | 10/09/2007 |
| 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 connected to a compressor and a compressed air chamber defined in an ou... | 08/14/2007 |
| 7252158 | Pilot valve for a pneumatic tool A pneumatic tool (20) for impacting a workpiece (22) is provided. The tool (20) comprises a casing (42) defining a chamber (48). A piston (54) is slidable within the chamber (48) along an operational axis (A). An exha... | 08/07/2007 |
| 7231990 | Limit structure for a hook of a pneumatic tool The limit structure for the hook of the pneumatic tool, and the area that is preset on the pneumatic tool has a cylinder hook assembly part that can be covered by a loop cover of the hook. A ring groove is placed on the circumferential area of the hook assembly part... | 06/19/2007 |
| 7232052 | Inner head housing of a nailer The present invention provides a structure of the inner head housing, which is placed inside the nail tip cover. The structure includes a movable base of the air-resistant ring, which is placed inside the slot of the fixed liner ring. The resilient component is used... | 06/19/2007 |
| 7232970 | Safety start switch for a pneumatic tool A safety start switch for a pneumatic tool including a main body, a compression strip, a push knob, a coupling element, a spring, and a pivot pin. After a corresponding arrangement of the above-mentioned components, the compression strip is not compressible in the o... | 06/19/2007 |
| 7228935 | Attachment pin for an exhaust-gas muffler The invention relates to an attachment pin (1) for fixing an exhaust-gas muffler (2) in an apparatus part (4) of a portable handheld work apparatus (5) driven by an internal combustion engine. The exhaust-gas muffler (2) includes e... | 06/12/2007 |
| 7222680 | Pneumatic motor improvements and pneumatic tools incorporating same A pneumatic motor having a motor chamber having an inner surface with an eccentric longitudinal axis, a motive gas fluid inlet, and at least one end wall located transversely to the longitudinal axis with an exhaust aperture located therethrough. A rotor is rotatabl... | 05/29/2007 |
| 7213500 | Pneumatic tool A pneumatic tool includes a shell defining first, second, third and fourth communicating spaces, a channel communicated with the second space, an inlet communicated with the channel, and an outlet communicated with the second space. A cylinder in the first space def... | 05/08/2007 |
| 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 at least two longitudinal portions disposed parallel to the longitudin... | 04/24/2007 |
| 7192226 | Shrink fit holder and methods of drilling and reaming A drill has a unitary drill bit and chuck structure that includes a drill bit and a chuck. The chuck encloses a portion of the drill bit and has a thread. A rotatable drive element having a thread engages the thread of the chuck. The chuck is heat shrunk onto the dr... | 03/20/2007 |
| 7191849 | Pneumatic tool 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 chamb... | 03/20/2007 |
| 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 pneumatic motor module, a rear cover module disposed at a rear end of... | 02/13/2007 |
| 7137540 | Dual mode pneumatic fastener actuation mechanism A contact safety and trigger mechanism for use with a pneumatic fastener in order to permit efficient pneumatic fastener actuation mode selection. A rotating rod is included in a contact safety assembly which is constructed to slide toward/away from a driver housing... | 11/21/2006 |
| 7134697 | 360° rotatable inlet screw assembly for a pneumatic tool A 360° rotatable inlet screw assembly for a pneumatic tool includes a fixing base, an inlet screw and a C-shaped retainer. The fixing base is fixed in an inlet hole of the pneumatic tool and axially formed with a through hole. A first end of the inlet screw is form... | 11/14/2006 |
| 7108593 | Power tool adjustable handle assembly A power tool is provided with an adjustable handle assembly. The assembly has a housing and a handle connected to the housing. The handle may be movable between a plurality of positions and has a gripping portion. There may be a lock member associated with either of... | 09/19/2006 |
| 7095142 | Pneumatic tool with integrated electricity generator A rotor for a pneumatic tool having electricity-generating capabilities includes a shaft and an integral rotor body. The rotor body includes recesses dimensioned to receive an insulated subassembly having a magnet received within a nonmagnetic insulator to allow flu... | 08/22/2006 |
| 7080578 | Hand tool with impact drive and speed reducing mechanism A power driven tool useful for tightening and loosening a mechanical fastener includes an impact mechanism. Preferably, the tool is pneumatic and includes a ratchet head and an impact device for providing additional torque to the ratchet head. A planetary reduction ... | 07/25/2006 |
| 7025150 | Air inlet for pneumatic tools 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... | 04/11/2006 |
| 7013986 | Impact tool An impact tool enables a front cover part to be easily attached to and detached from a housing body, with a device having a simplified structure. The front cover part has an annular fastening portion clamped to the outer peripheral surface of a front edge portion of... | 03/21/2006 |
| RE39009 | Hand-held pneumatic rotary drive device 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 pressu... | 03/14/2006 |
| 6991043 | Pneumatic tool 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 chamb... | 01/31/2006 |
| 6988565 | Retrofit kit for a modular control apparatus for a power impact tool The invention comprises retrofit kits for power impact tools. The retrofit kits adapt modular control apparatuses to power impact tools that where not originally manufactured to receive a modular control apparatuses. The retrofit kits comprise a modular control appa... | 01/24/2006 |
| 6971456 | Electric power tool An electric power tool incorporating a single fan that provides efficient cooling of the motor and transmission while reducing the cost and size of the power tool. The power tool includes a speed reduction transmission provided within a housing between the motor and... | 12/06/2005 |
| 6932165 | Controlling mechanism of pneumatic tool 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 b... | 08/23/2005 |
| 6923272 | Pneumatic power tool with exhaust air outlet deflector 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... | 08/02/2005 |
| 6902011 | Variable torque impact wrench 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 ... | 06/07/2005 |
| 6883619 | Bidirectional pneumatic impact wrench 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... | 04/26/2005 |
| 6827156 | Vibration suppressing device for air hammer An air hammer includes an air hammering mechanism and a vibration suppressing device to absorb the vibration transmitted from the air hammering mechanism. The vibration suppressing device includes a cylinder forming a front channel and a rear channel in communicatio... | 12/07/2004 |
