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| Number | Title | Issue Date |
| 7628219 | Handle with detecting unit A handle for an electric hand tool, which in use, is detachably connected to the hand tool as an auxiliary handle (2), includes at least one detection device (6), which communicates with at least one regulating and/or control element in the electric ha... | 12/08/2009 |
| 7540335 | Adjustable handle for a power tool A power tool comprising a housing, an output shaft driven by an electric motor for driving a working piece and an adjustable handle. An elongate supporting wall of the housing extends slantwise downwardly from a rear end of the housing and houses the motor. The adju... | 06/02/2009 |
| 7414374 | Continuously variable frequency swinging armature motor and drive Disclosed herein is a power device. The power device has a power source; timing circuitry powered by the power source for producing a current pulse output having a pulse width; a switch for triggering the current pulse output produced by the timing circuitry; an arm... | 08/19/2008 |
| 7353892 | Guide frame for an earth drilling apparatus A guide frame (1) for an earth drilling apparatus includes a support plate (6) for holding the drive unit (7) and a handle frame (2) having handle sections (17, 18) for holding and guiding the earth drilling apparatus. Operator-con... | 04/08/2008 |
| 7318486 | Adjustable handle for a power tool The present invention relates to a power tool comprising a housing, an output shaft driven by an electric motor for driving a working piece and an adjustable handle. An elongate supporting wall of the housing extends slantwise downwardly from a rear end of the housi... | 01/15/2008 |
| 7303028 | Adjustable handle for a power tool The present invention relates to a power tool comprising: a housing and a handle engaged with the housing, wherein the rear portion of the housing is provided with an arcuate track. The handle is provided with an engaging portion which is engageable with the arcuate... | 12/04/2007 |
| 7298101 | Continuously variable frequency swinging armature motor and drive Disclosed herein is a power device. The power device has a power source; timing circuitry powered by the power source for producing a current pulse output having a pulse width; a switch for triggering the current pulse output produced by the timing circuitry; an arm... | 11/20/2007 |
| 7273333 | Methods and apparatus for counterbalance-assisted manufacturing operations Methods and apparatus for counterbalanced manufacturing operations are disclosed. In one embodiment, an apparatus for supporting a tool relative to a surface of a workpiece includes a base adapted to be attached to the workpiece, a tool support coupled to the base, ... | 09/25/2007 |
| 7267512 | Power assisted drill press A power assisted drill press having a feed cylinder fed by a variable pressure regulator which allows a user to controllably feed a bit and work material together while activating a drill motor to rotate the bit. An embodiment of the power assisted drill press utili... | 09/11/2007 |
| 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 containing the hammer and the generator. The main part of the flying hammer i... | 04/03/2007 |
| 7108459 | Power assisted drill press A power assisted drill press having a feed cylinder fed by a variable pressure regulator which allows a user to controllably feed a bit and work material together while activating a drill motor to rotate the bit. An embodiment of the power assisted drill press utili... | 09/19/2006 |
| 7078886 | Appliance for reading identification connectors In order to enable the information contained in an identification connector to be read in a manner that is more reliable, faster, and without risk of damage, the invention provides a reader appliance for reading identification connectors for airplane engines, the co... | 07/18/2006 |
| 6854538 | Rock drill A rock drill includes a shank. A percussion piston is arranged to hit the back end of the shank. Further, a pulling element is arranged around the shank, to which a pulling force can be directed in such a manner that the shank can, by the pulling force, be moved tow... | 02/15/2005 |
| 6834731 | Staple gun apparatus for attaching tab The invention comprises a staple gun with highly compact accessory apparatus for attaching a planar tab or label to a fixing surface. The accessory has a housing and a positioning and indexing assembly associated with the housing which is operable to feed and hold a... | 12/28/2004 |
| 6741051 | Power tool trigger control A trigger controller for an electric power tool including a motor and a pull-trigger movable along a path having a foremost home position comprises a mechanical switch and a solid-state switch connected in series to the motor, wherein the mechanical switch includes ... | 05/25/2004 |
| 6296064 | Axially loaded drive tool A drive tool having a top portion which is engageable with a drive source and a lower portion engageable with a fastener. The drive tool includes an axial load assist mechanism configured to urge the lower portion and upper portion of the tool away from e... | 10/02/2001 |
| 5996874 | Contact arm locking mechanism for screw driving machine A screw driving machine in which a screw having a head is screwed into a work, includes: a body; a nose section positioned toward the work with respect to the body, the nose section holding the screw to be driven; a hammering mechanism accommodated in the... | 12/07/1999 |
| 5850884 | Moling apparatus A moling apparatus comprises a housing having a head for penetrating ground, an anvil in the housing connected to the head, and a hammer in the housing and spaced therefrom by a spring. A vibrator unit is spaced from the hammer and arranged to transfer vi... | 12/22/1998 |
| 5170850 | Ratchet operated device for setting a post having an auger attached at one end Ratchet operated device for setting a post having a helical auger thread disposed at one end. The ratchet operated device has an annular sleeve with an annular series of teeth disposed on its exterior surface. The annular sleeve is provided with a fastene... | 12/15/1992 |
| 4778014 | Ventilating means This invention is a machine for ventilating roof decks which, without such ventilation, entraps moisture which leads to reduced insulating capacity, deterioration and the like. This ventilating device includes a mobile carriage, an extensible lift and an ... | 10/18/1988 |
| 4776406 | Motor-driven hand tool for drilling or impact drilling operations A motor-driven hand drill includes a housing, in which between a motor and a drill receptacle, a safety coupling for limiting a torque, applied to a drill, is positioned. For specific conditions, for example for drilling in armoring iron, the torque appli... | 10/11/1988 |
| 4773487 | Speed limiter for an air powered tool A speed limiter for setting the speed of an air tool has a flow passage body which screws into the air inlet of the tool. The body defines an axial air flow path therethrough with an annular land adjacent to internal threads. An adjusting insert is thread... | 09/27/1988 |
| 4648756 | Two speed automatic shift drill An automatic shift drill for rotationally driving a bit into a laminated workpiece at one of two speeds according to the depth of the bit in the workpiece is disclosed. A cam block element has flag sections and gap sections corresponding to the various la... | 03/10/1987 |
| 4558747 | Impact devices A pair of rotating flywheels which engage a ram for moving a tool which impacts a part, such as a nail to be driven, are rotated in opposite directions from a single motor or other rotating means, through a pair of substantially identical gears, one of wh... | 12/17/1985 |
| 4402369 | Pneumatic tool A percussive-action pneumatic tool comprising a handle-carrying frame having successively accommodated therein a shock-absorber and a housing with the percussion mechanism therein, connected through a gas distribution system to a compressed air source. Th... | 09/06/1983 |
| 4308922 | Impact device An impact device comprises a cylindrical casing accommodating a hammer piston imparting blows to a working tool, which reciprocates under the action of compressed air admitted from a compressed air line through a control valve air distribution arrangement... | 01/05/1982 |
| 4105081 | Rock-drilling and bolt-setting apparatus A bolt-setting and rock-drilling apparatus has a rail which can be swung about and axis and axially displaced therealong to position a drilling carriage and a bolt-setting carriage alternately with respect to a rock wall in which the bolt is to be lodged.... | 08/08/1978 |
| 4087010 | Apparatus for mounting a hand-held paving breaker on backhoe attachments An apparatus for removably mounting a hand-held tool such as a pavement breaker or tamper releasably on the wrist linkage of the bucket for a backhoe attachment for a tractor or truck including an attachment member having a slide rail, a carriage slidably... | 05/02/1978 |
| 3939925 | Throttle valve construction for a percussion tool A throttle valve construction for a pneumatic paving breaker and other types of percussion tools employing a reciprocating piston to impart blows to a work steel or the like is disclosed, wherein partial movement of the control lever of the tool from a fu... | 02/24/1976 |
