"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 7556132 | Sliding clutch The present invention relates to a sliding clutch made of plastic material, which is especially suitable for the use in adjustment drives for vehicular exterior mirrors. The sliding clutch thereby comprises a first clutch part and a second clutch part, wherein the f... | 07/07/2009 |
| 7441642 | Low inertia ball brake/clutch A clutch assembly is provided that includes a rotor, a stator, a clutch element disposed between the rotor and stator, and an axial force source. First and second contact surfaces are disposed on the rotor and spaced axially apart. The second surface has a smaller r... | 10/28/2008 |
| 7422075 | Rotary tool An overload clutch assembly for a power tool having two torque settings through which rotary drive is transmitted to a spindle. The overload clutch assembly is capable of being between switched between the two torque settings by at least one actuator. The clutch ass... | 09/09/2008 |
| 7367891 | Techniques for controlling transfer of torque using detent members responsive to radial force A torque limiting device includes a base configured to reside in a fixed position relative to a drive unit, an input shaft assembly configured to receive a torque load from the drive unit, and an output shaft assembly which is capable of rotating about an axis. The ... | 05/06/2008 |
| 7334647 | Rotary tool An overload clutch assembly for a power tool having two torque settings through which rotary drive is transmitted to a spindle. The overload clutch assembly is capable of being between switched between the two torque settings by at least one actuator. The clutch ass... | 02/26/2008 |
| 7156575 | Shaft-hub connection The present invention relates to a shaft-hub connection having an attachment flange and a clamping element, particularly a clamping ring, attachable thereto, by means of which the shaft end assigned to the attachment flange may be friction-locked to the attachment f... | 01/02/2007 |
| 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 |
| 7055415 | Screwdriver assembly and method with torque measuring scale A screwdriver having a handle and a scale for measuring torque transmitted to a screw and having a beam-type spring for transmitting the screwing torque. The handle and spring have a lost-motion connection therebetween, and there is limit stop in that connection. Th... | 06/06/2006 |
| 7051820 | Rotary hammer An electrically powered rotary hammer comprising a rotary drive mechanism including a spindle drive gear rotatably mounted around the spindle for rotationally driving the spindle, or a part of the spindle, via an overload clutch. The overload clutch is arranged such... | 05/30/2006 |
| 7028454 | Drum clutch slippage system An improved clutch slippage detection system, comprising a magnetic actuator and at least one reed switch sensor located at a slip clutch, which reed switch changes its state, at the instant the clutch begins to overrun. ... | 04/18/2006 |
| 7018314 | Engine starter with impact absorber An engine starter equipped with an impact absorber. The impact absorber is arranged between a planetary gear train and an overrunning clutch of the starter. The absorber includes a friction plate which is disposed between a clutch outer and a carrier plate of the ov... | 03/28/2006 |
| 6978510 | Wiper system with overload protection A wiper system for wiping a movable window (2), in particular of a motor vehicle, having a rotationally drivable first coupling part (10) for connection to a rotationally drivable drive shaft (9) disposed downstream of a stationary motor-gear un... | 12/27/2005 |
| 6958915 | Heat dissipating device for electronic component A heat dissipating device includes a retention module (20) around an electronic component (15), a heat sink (30) attached to the retention module, and a fan (90). The heat sink includes a plurality of fins (62, 64, 66, 68) and spac... | 10/25/2005 |
| 6932729 | Compressor having a power transmission mechanism which prevents balls from moving in an axial direction A compressor includes a power transmission mechanism. The power transmission mechanism includes a shaft, and a first rotation member fixed to the shaft. The first rotation member includes a plurality of accommodation portions. The power transmission mechanism also i... | 08/23/2005 |
| 6929574 | Belt drive two speed shift mechanism A two speed shift mechanism for a belt drive that includes a rotatable shaft with a first pulley, and a tube concentric with the shaft and rotatable therearound. The tube includes a shift hub supporting a second pushy in axially spaced relation to the first pulley f... | 08/16/2005 |
| 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 |
| 6896621 | Torque limiting coupling A torque limiting coupling has a first coupling hub (2) with first driving members (10), and a second coupling hub (27) with second driving members (35). The hubs (2, 27) are jointly received in a coupling sleeve (46) and ar... | 05/24/2005 |
| 6786315 | Thrust reverser system with sequential torque decoupler An aircraft thrust reverser system that includes a power drive unit operable to supply a drive force. The power drive unit includes a motor and a torque decoupler that sequentially decouples the power drive unit from a plurality of loads. The torque decoupler includ... | 09/07/2004 |
| 6725994 | Mechanism useful as a slip clutch or brake and method of making same A mechanism useful as a slip clutch or brake, including a first member having a cylindrical inner wall, a second generally cylindrical member received coaxial within the first member so as to be rotatable therein, and at least one generally annular third spring memb... | 04/27/2004 |
| 6688986 | Mounting structure for a cam-type torque damper A mounting structure for a cam-type torque damper is provided to ease the assembling thereof, improve the maintenance properties thereof and prevent the variation in thrust direction restricting position due to loosening or the like. A collar is spline co... | 02/10/2004 |
| 6666283 | Hand held power tool A hand power tool has at least one safety coupling arranged in a drive train, the safety coupling having at least two coupling elements for transmitting a torque around a rotary axis, at least one arresting element which is spring loaded and held in a gui... | 12/23/2003 |
| 6575042 | Beam-type torsion applying and measuring tool A beam-type torquing and measuring tool having two telescoping members rotationally attached together at a first end of each, and they are relatively rotatable at the other end. One member transmits torque to the workpiece and has a pointer thereon, and t... | 06/10/2003 |
| 6474457 | Bi-directional clutch A bi-directional clutch comprises an outer ring, an inner ring and a roller. The roller is retained by a retainer and is positioned between the outer ring and the inner ring. The outer ring has a cam surface, so that the roller forms a wedge that contacts... | 11/05/2002 |
| 6447397 | Detent torque overload clutch A detent type torque overload clutch has a regressive disc spring that exerts a lower engagement force in the disengaged position than in the engaged position. The force exerted by the spring initially increases to a maximum upon compression from the enga... | 09/10/2002 |
| 6443846 | Spare tire carrier torque-limiting slip mechanism A torque-limiting slip mechanism for a spare tire carrier includes a camshaft with a plurality of mating surfaces and differently shaped intermediate segments, a tire carrier drive with an inner pocket circumscribed by an interior wall, and a plurality of... | 09/03/2002 |
| 6309303 | Slip clutch for a tube cleaner A clutch device is adapted to fit onto a drive shaft of a standard water pressure cavity machine. The clutch device has a clutch body with a shaft receiving aperture at one end of the clutch body and a spring assembly at the other end of the clutch body. ... | 10/30/2001 |
| 6241613 | Drive arrangement A drive arrangement for driving a rotary component of a fuel pump comprises a resilient member associated with either a drive shaft or the rotary component and engageable with a surface associated with the other of the drive shaft and rotary component. In... | 06/05/2001 |
| 6220415 | Hold down fastener A hold down fastener clutching mechanism comprising an inner torque ring having a pair of split outer ring members with angled ends. A sloped surface at one of the angled ends is at a predetermined angle to the fastener axis. The other end of the inner ri... | 04/24/2001 |
| 6168402 | Scroll-type compressor having power transmission mechanism allowing idling The invention relates to a scroll-type compressor which will not exert an undesirable influence on a power source of a rotation shaft, even if seizing occurs between an orbiting scroll member and a fixed scroll member. A power transmission mechanism P is ... | 01/02/2001 |
| 6152277 | Load limiting device to transmit an axial motion to operating mechanisms A load limiting device to transmit an axial motion to operating mechanisms, comprising: an engaging element (6, 68) which can be connected to a mechanism (4); self-bearing means (2,5) transmitting in axial direction the motion of a driving group (1); a di... | 11/28/2000 |
| 6082513 | Clutch device of a miller A clutch device has a shaft rod, a hollow torsion sleeve, a trip device, an outer toothed gear, an inner toothed gear, and a first belt pulley. The outer toothed gear is disposed on the trip device. The hollow torsion sleeve has a plurality of grooves. Th... | 07/04/2000 |
| 6033106 | Torque limiter driving head for paint cans with a stirrer A torque limiter driving head for paint cans with a stirrer is arranged in a storage cabinet for the paint cans. A number of rotatably driven pulleys and a matching number of stirring shafts are provided. The pulleys have a hub and the stirring shafts are... | 03/07/2000 |
| 6026536 | Range limiting dual direction slip clutch In an automotive vehicle, a dual directional slip clutch couples a windshield wiper arm to an electric motor and is operable to disengage the wiper arm from the drive motor during certain conditions. A range limiting system works in conjunction with the d... | 02/22/2000 |
| 6019708 | Torque limiting ratchet for bicycle mounting exercising device A torque limiting ratchet mechanism disposed within a crank handle. The ratcheting mechanism includes a ratchet disk having inner projecting portions which engage a shaft for rotational purposes, and resilient outwardly projecting portions which are engag... | 02/01/2000 |
| 5947246 | Overload clutch and detector plate assembly A detector plate for an overload clutch, the detector plate having at its peripheral edge a flat metal spiral retaining ring for providing improved detection by an adjacent proximity switch device. The spiral retaining ring provides an appropriate metal m... | 09/07/1999 |
| 5924536 | Torque-switched clutch In a torque-switched clutch between an input shaft and an output shaft, the clutch transferring into a release position from a positive-locking connection when a limiting torque is reached, at least one positive-locking element is connected to one of the ... | 07/20/1999 |
| 5916325 | Actuator assembly and torque limiting system for same A torque limiting system for limiting the torque transferred between a rotating member and another member in which a disc is disposed within the rotating member and a shaft is coupled to the disc for receiving a load. At least one bearing member is dispos... | 06/29/1999 |
| 5865076 | Clutch mechanism for screw tightening machine A clutch mechanism for a screw tightening machine having a clutchment and a main shaft, the clutchment interlocking with a screw tightening machine driving mechanism, the main shaft holding a screw tightening driver bit, the clutchment and the main shaft ... | 02/02/1999 |
| 5819583 | One-way clutch with resilient ring and starter using the same In a one-way clutch used in a starter for engines, a locking concave for locking a roller thereto is formed on a roller-moving surface of one clutch member having a peripheral surface facing a peripheral surface of the other clutch member having a wedge-s... | 10/13/1998 |
| 5799716 | Electric-powered shutter apparatus for a building opening An electric-powered shutter apparatus to be mounted to a building. A winding drum (4) of an electric-powered shutter device (1) is provided with a driving mechanism including an electric motor (7) and a single-directional rotary clutch device (8). A balan... | 09/01/1998 |