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Thomas Edison ; 1889
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| Number | Title | Issue Date |
| 7814816 | Power tool, battery, charger and method of operating the same A power tool includes a housing assembly having a first housing portion and a second housing portion supported for pivoting movement relative to the first housing portion about a pivot axis. The first housing portion supports a motor. The second housing portion incl... | 10/19/2010 |
| 7377198 | Powered adjustable wrench A powered adjustable jaw wrench comprises a wrench body having a handle portion and a head portion defining a stationary jaw, a movable jaw reciprocally mounted to the head portion, a driven mechanism operably connected to the movable jaw, and a drive mechanism moun... | 05/27/2008 |
| 7370549 | Reduction gear for geared motor, geared motor, and product group thereof A reduction gear for forming a geared motor having a motor and a reduction gear is provided. The reduction gear for a geared motor includes an intermediate orthogonal gear head having an orthogonal transfer mechanism for changing a rotational direction of power deli... | 05/13/2008 |
| 7331496 | Hammer drill A hammer drill (2) includes a clockwise and counterclockwise driven tool spindle (28), a drive pinion (70) operatively connectable with the tool spindle (28) for transmitting a torque thereto, a separate control handle (6) for sele... | 02/19/2008 |
| 7318485 | Method of Controlling the direction of rotation of a power tool The invention discloses a power tool for screwing or drilling having a motor for driving a drive shaft, a controller for controlling the power tool, a motor switch for switching the motor on and off, switch for reversing the power tool between clockwise and counter-... | 01/15/2008 |
| 7311025 | Powered driver with location specific switching Powered drivers and methods are disclosed, the drivers including a head housing a motor driven drive transfer assembly for operating a rotatable socket engageable at a threaded connector. A reaction unit having a fitting engagement attached to rail guides is movably... | 12/25/2007 |
| 7306050 | Toothed ring connecting structure of a power tool A toothed ring connecting structure of a power tool, including: a main body having a first opening and a second opening; a motor accommodated in the main body and having an output shaft extending from a first end of the motor; a fixing cap having a body section, a f... | 12/11/2007 |
| 7272996 | Spanner socket A spanner socket for application with conventional hand tools such as ratchet drivers and fixed wrenches employed for imparting torque to a work piece about an axis of rotation includes a generally cylindrical shaped base member which defines a predetermined number ... | 09/25/2007 |
| 7263916 | Electric wrench An electric wrench comprises a main body with a head portion, a handle and a neck portion, a worm gear disposed in a receptacle in the head portion and engaged with a movable jaw on top of the head portion, a flexible member disposed between the worm gear and a majo... | 09/04/2007 |
| 7254868 | winding and anti-drop assembly for door counterbalance system A counterbalance system (25) for a door (D) movable between a closed position and an open position having an axle (20), a cable drum (15) attached to the axle, a winding shaft (35) interconnected with the axle by a counterbalance spring (... | 08/14/2007 |
| 7246541 | Pipefitting engaging tool assembly A pipefitting engaging tool assembly includes a housing that has a bottom wall and a peripheral wall. A head is attached to the housing and has a circular opening extending therethrough. The opening is defined by an outer edge that has a slot therein continually ext... | 07/24/2007 |
| 7204174 | Wrench assembly A wrench assembly a housing that has a top wall, a bottom wall and peripheral wall extending between and attached to the top and bottom walls. The top wall has an opening extending therethrough and through the bottom wall. A first gear wheel is positioned in the hou... | 04/17/2007 |
| 7171873 | Tensionless power ratchet wrench assembly A power ratchet wrench assembly having a tensionless head wherein operation of the ratchet mechanism does not require a tensioning means for applying a frictional force against the ratchet mechanism to inhibit rotational movement of the ratchet mechanism. In one emb... | 02/06/2007 |
| 7156187 | Electric hand screwdriver with adjustable head An electric powered handheld screwdriver having a main body and a reaching arm. The main body has a power source, a drive motor, and a drive shaft. Attached to the outer portions of the main body are a plurality of screwdriver bits. The power source is a removable r... | 01/02/2007 |
| 7152510 | Clamping system for the tool holding fixture of machine tools The non-slip system consists of screw connection elements or screw closure elements with cams or grooves (4) on the face, and of a spanner (13), also provided with cams (16, 17, 18), for tightening and loosening them. The side flanks (8, 9 | 12/26/2006 |
| 7137761 | Right angle drill with an improved structure for accommodating a light assembly A right angle drill (1) includes a motor housing (6) which defines therein a hole (18) for accommodating a motor field system (3), a cut-out (15) formed in the underside of the motor housing (6) from the front end toward the... | 11/21/2006 |
| 7134509 | Portable power tool with rotating output shaft and overload protection A portable power tool is provided which includes a rotation motor (11), an output shaft (14), a gearing (13) and a drive spindle (12; 112) connecting the gearing (13) to the motor (11). A drive line arresting lock device ( | 11/14/2006 |
| 7127972 | Method and apparatus for attaching a rod member to a remote surface An apparatus for facilitating the placement of a rod member into a remote surface, comprising: an elongated hollow tube member having a first end and a second end; the first end of the elongated hollow tube member adapted to receive and removably secure a drill bit ... | 10/31/2006 |
| 7117764 | Screwed device tightening/untightening tool A tool for tightening and untightening screwed devices, such as bolts for fixing engines (10) to struts (12) on aircraft, comprises a hydraulic wrench (20), a hydraulic pump (22), preferably manual, at a distance from the wrench, and a tu... | 10/10/2006 |
| 7107877 | Ratchet screwdriver A ratchet screwdriver includes a main rod, a driven shaft, a ratchet mechanism, a socket connector, a control member, and a handle. Thus, the pawl member of the ratchet mechanism is pivoted to engage the ratchet teeth of the socket connector by rotation of the rotat... | 09/19/2006 |
| 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 operated to pilot an air motor controlling pilot valv... | 09/12/2006 |
| 7089827 | Power driven wrench A power driven wrench comprises a head having an opening which carries a toothed or threaded rotary member substantially completely within the head. A shaft is present having a toothed or threaded inner end which engages the toothed rotary member, extending through ... | 08/15/2006 |
| 7086311 | Pneumatic ratchet wrench A pneumatic ratchet wrench has a body, an air input valve, a switch, a propeller, an eccentric spindle, a lever, a sleeve, a nut and a head. The body has a cavity, a front end and a rear end. The air input valve, the switch, the propeller, the eccentric spindle, the... | 08/08/2006 |
| 7073411 | Torsion spring tensioning apparatus Apparatus for tensioning torsion spring, shaft-mounted in association with a spring cone, has a central ratchet assembly with two spaced, cogged ratchet wheels, slotted to allow the assembly to be rotatably positioned over the shaft. The ratchet assembly is connecta... | 07/11/2006 |
| 7069816 | Motor-driven screw driver The invention relates to a motor-driven screw driver comprising a drive motor to which a first torque limiter is assigned and a head (1) which presents the screw-driving tool or a recess for a screw-driving tool. A ratchet mechanism (6) and a torque li... | 07/04/2006 |
| 7062979 | Tool and associated methods for controllably applying torque to a fastener A torque tool and an associated method are provided which apply operator-defined levels of torque to a threaded fastener. In one aspect, a portable, battery powered torque tool controls the motor to slow further advancement of the threaded fastener once the torque t... | 06/20/2006 |
| 7059217 | Tensionless power ratchet wrench assembly A power ratchet wrench assembly having a tensionless head wherein operation of the ratchet mechanism does not require a tensioning means for applying a frictional force against the ratchet mechanism to inhibit rotational movement of the ratchet mechanism. In one emb... | 06/13/2006 |
| 7036230 | Cutting tool adopted for two handed operation A pneumatic cutting tool has an extended body length so it can be operated by a pair of hands to facilitate the operation and holding thereof The body length can be increased using an extension cylinder and extension kit. The tool also has a handle mounted onto the ... | 05/02/2006 |
| 7021179 | Pressure-operated power screwdriver having a measuring section The power screwdriver comprises a functional part (11) with a housing (14) through which a shaft (17) passes. The shaft (17) is provided with a toothing (18), into which a ratchet lever of the functional part (11) engages. A... | 04/04/2006 |
| 7013761 | Wrench A wrench includes a body, a control device, a pawl and a joint. The body includes a handle and a ring. The control device includes a disc pivotally received in the ring and a stem projecting from the disc and including upper, lower and intermediate sections. The paw... | 03/21/2006 |
| 7011000 | Bolt or nut tightening device having reaction force receiving member A bolt or nut tightening device comprising a tightening socket (4) and a reaction force receiving member (5), the tightening socket (4) being rotatingly drivable upon a speed reduction by a motor (2) and a reduction mechanism (3) w... | 03/14/2006 |
| 6971284 | Compact ratchet wrench with adjustable jaws The ratchet wrench of this invention includes a jaw adjustment assembly connected with a jaw and gear assembly carried by a wrench head. Components of the jaw adjustment assembly include a scroll plate inside a cap operated by a jaw adjustment disk located above the... | 12/06/2005 |
| 6959751 | Winding system, rolling door assembly including the same and kit for assembling the winding system A winding system for winding a rolling door assembly. The winding system includes a support bracket, first and second gears. The support bracket is preferably rigidly connectable to a fixed structure of the rolling door assembly, and has a receiving device and a sup... | 11/01/2005 |
| 6941817 | Shaft delashing method and assembly with wireless interface A delashing assembly includes a tightening device for tightening a nut in relation to a main shaft supported on bearings and a wireless interface, wherein torque information is received by the tightening device over the wireless interface. A main shaft and main nut ... | 09/13/2005 |
| 6928902 | Air powered wrench device with pivotable head and method of using An air powered wrench device with a pivotable head and associated method of using. The device comprises a handle pivotally attached to an arm. The handle comprises a housing, an air intake nozzle, an air driven motor, a drive shaft, a ball bearing collar, a universa... | 08/16/2005 |
| 6923095 | Tensionless power ratchet wrench assembly A power ratchet wrench assembly having a tensionless head wherein operation of the ratchet mechanism does not require a tensioning means for applying a frictional force against the ratchet mechanism to inhibit rotational movement of the ratchet mechanism. In one emb... | 08/02/2005 |
| 6915721 | Cordless ratchet wrench An electrical ratchet wrench has a body, a motor, a battery set, a switch, a planet gear assembly, a connecting collar, a head and a ratcheting device. The motor is received in the body and has an output shaft with a pinion. The battery set is detachably received in... | 07/12/2005 |
| 6904835 | Mechanical coupler Disclosed is a coupler that grips the internal surface of a torque receptor such as a pipe or driveshaft to be turned. When torque is applied to the coupler, one or more gripping surfaces are forced apart by a cam mechanism. The gripping surfaces tightly engage the ... | 06/14/2005 |
| 6860174 | Hand-held power tool A hand-held power tool for inhibiting uncalled-for rotation of the output shaft and for self-compensating for wear. The tool comprises a housing, a braking member fixedly mounted in the housing and an output shaft mounted in the housing for rotation. The output shaf... | 03/01/2005 |
| 6789447 | Reversible ratchet head assembly A reversible ratchet head assembly includes a reversal actualor (34) which is received in an opening in an output shaft assembly (48) of a tool. The output shaft assembly carries a pawl (60) which pivots on the output shaft assembly between two ... | 09/14/2004 |