Famous Patents
In 1879, Auguste Bartholdi received design patent number 11,023 titled "Design for a Statue". It was for the Statue of Liberty.
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 |
| 8151964 | Multiple disc clutch apparatus In a multiple disc clutch apparatus 10, a cam member 41 which is disposed on a side of a clutch inner member 16 is formed into an annular shape. The cam member 41 extends in a radial direction so that an outer circumferential surface of t... | 04/10/2012 |
| 8151963 | Power transmitting apparatus A power transmitting apparatus can comprise a clutch housing rotatable together with an input member and supporting a plurality of driving clutch plates. A clutch member can support a plurality of driven clutch plates alternately arranged between the driving clutch ... | 04/10/2012 |
| 8146724 | Vehicle clutch A vehicle clutch includes a clutch outer member, a clutch inner member, and a clutch center member movable in an axial direction between a first position and a second position. A cam mechanism is provided between the clutch inner and outer members. The cam mechanism... | 04/03/2012 |
| 8025138 | Multi-plate clutch system A multi-plate clutch system includes an outer clutch member having a plurality of first clutch plates thereon, a central spool having a plurality of second clutch plates thereon interspaced with the first clutch plates. The clutch system also includes a cam mechanis... | 09/27/2011 |
| 7891475 | Isolator decoupler An isolator decoupler comprising a first tapered portion for connecting to a driving shaft, a second tapered portion cooperatively engaging the first tapered portion, the second tapered portion having a frictional engagement with a pulley, and an elastomeric member ... | 02/22/2011 |
| 7753186 | Vehicle clutch A vehicle clutch, particularly motorcycle clutch, is provided comprising a friction system; an engaging member acting on the friction system; and a spring adapted to be brought into operative communication with the engaging member via a bearing, wherein the engaging... | 07/13/2010 |
| 7721862 | Power transmitting apparatus A power transmitting apparatus can comprise a clutch housing, a plurality of driving clutch plates, a plurality of driven clutch plates movable for carrying out the pressure-contact or release relative to the driving clutch plates, a clutch member, a pressure member... | 05/25/2010 |
| 7681705 | Multi disc friction clutch and motorcycle therewith A multiple disc friction clutch comprises a clutch outer for take in power, a clutch hub for take out power, friction plates, a clutch spring pressing a pressing member to the friction plates for connecting the clutch, a spring receiving member supporting the clutch... | 03/23/2010 |
| 7431136 | Hand power tool with a clutch A hand power tool has a clutch, a motor, a drive shaft located at a side of the motor, a driven shaft to be located at a side of a workpiece, a clutch which couples the drive shaft and the driven shaft and enters into engagement when pressure is exerted on the drive... | 10/07/2008 |
| 7399249 | Disk for a multi-disk clutch and production method thereof In a multi-disk clutch comprising a rotary body having splines formed thereon so as to extend helically along the surface thereof, with a number of disks having central openings with inwardly projecting teeth via which the discs are in rotationally positively lockin... | 07/15/2008 |
| 7370743 | Power transmitting apparatus A power transmitting apparatus has a clutch housing (2). A clutch member (4), connected to an output member (3), has a plurality of driven clutch plates (7) alternately arranged between driving clutch plates (6) of the clutch housi... | 05/13/2008 |
| 7360634 | Frictional engagement device A device for frictional inter-engagement between two mutually movable parts (13, 14). A lever mechanism exerts counter-directed pressing forces towards both parts to transfers movement between them. A lever (25) has a free lever end (27) contact... | 04/22/2008 |
| 7325361 | Apparatus and method for providing a modular sliding door mechanism A modular drive assembly for a sliding door, comprising: a guide track having a hinge slidably received therein; a pair of pulleys disposed on either end of the guide track; a pair of cables each having an end that is secured to the hinge and the other end is secure... | 02/05/2008 |
| 7258216 | One-way clutch and torque detection apparatus using same A power-assisted bicycle is provided with a one-way clutch that can also be used as a torque detection apparatus. The one-way clutch has a tooth part (112) mounted on a driven means and a piece part (100) mounted slidably yet non-rotatably on a drive s... | 08/21/2007 |
| 7191882 | Power transmitting apparatus A power transmitting apparatus which can reduce the number of parts in the apparatus and simplify the structure of the apparatus and thus reduce the manufacturing cost of the apparatus as well as reduce the size of the apparatus when compared with its torque transmi... | 03/20/2007 |
| 7163097 | Bi-directional friction clutch assembly for electric motors to prevent backdrive A clutch assembly 100 is provided for a motor having an armature shaft and a worm shaft having a worm constructed and arranged to engage a gear. The clutch assembly includes a clutch housing 112 including a race surface 132; a cam 117 cou... | 01/16/2007 |
| 7111719 | Hub clutch device for bicycle A hub clutch device for a bicycle includes a threaded shaft, a hub, a positioning sleeve, a movable sleeve, an elastic member, a fixing seat, and a plurality of urging balls. Thus, each of the urging balls is moved between a respective one of the adjusting slots of ... | 09/26/2006 |
| 7090608 | Wheel transmission A wheel transmission for a heavy construction vehicle, which can be applied to specially-equipped vehicles as well as heavy construction vehicles such as a forklift truck and a mechanical shovel. The wheel transmission (200) is intended to drive a pair of rig... | 08/15/2006 |
| 7083030 | Torque transfer coupling with magnetorheological clutch actuator A torque transfer mechanism is provided for controlling the magnitude of a clutch engagement force exerted on a multi-plate clutch assembly that is operably disposed between a first rotary and a second rotary member. The torque transfer mechanism includes an actuato... | 08/01/2006 |
| 7025151 | Device for limiting a torque to be transferred The invention relates to a device for limiting torque to be transferred, having first and second shafts having a longitudinal axis; at least first and second transfer elements arranged coaxial with the longitudinal axis of the first and second shafts, the first tran... | 04/11/2006 |
| 7005973 | Electrical actuator assembly for hinged vehicle safety devices A school bus has a stop sign hinged on an electrical actuator assembly that is attached to the side of the bus. The actuator assembly includes an electric motor that pivots the hinged stop sign from a stored position adjacent the bus to an operative position extendi... | 02/28/2006 |
| 6988602 | Torque transfer coupling with magnetorheological clutch actuator A torque transfer mechanism is provided for controlling the magnitude of a clutch engagement force exerted on a multi-plate clutch assembly that is operably disposed between a first rotary and a second rotary member. The torque transfer mechanism includes an actuato... | 01/24/2006 |
| 6907971 | One-way clutch A one-way clutch assembly comprises a clutch casing including a first plate coupled to a second plate, such as clutch inner and clutch outer plates. The first and second plates have a common central axis, the first and second plates are spaced apart along the common... | 06/21/2005 |
| 6889809 | One-way clutch and torque detection apparatus using same A power-assisted bicycle is provided with a one-way clutch that can also be used as a torque detection apparatus. The one-way clutch has a tooth part (112) mounted on a driven means and a piece part (100) mounted slidably yet non-rotatably on a drive s... | 05/10/2005 |
| 6796412 | Differential apparatus Differential apparatus which includes input and output members rotatable relative to each other, a clutch mechanism for interconnecting them, an actuator and a cam mechanism. The clutch mechanism includes first and second clutch members rotating with the input and o... | 09/28/2004 |
| 6716128 | Clutch and infinitely variable transmission A clutch apparatus includes a torque cam mechanism and a clutch actuator for compressing a clutch disc pack for clutch engagement through the torque cam mechanism. The clutch actuator includes a first fluid chamber for pushing the torque cam mechanism from a first p... | 04/06/2004 |
| 6715562 | Output shaft locking device An output shaft locking device includes a hollow frame through which an output shaft extends. The output shaft has a polygonal end which is connected to a driving device. A locking device includes a fixed ring received in an underside of the hollow frame and an inne... | 04/06/2004 |
| 6695740 | Power on demand differential A differential assembly having first structure, which is configured to rotate along a differential axis in response to receipt of a rotational input, a second structure, which is supported for rotation on the differential axis, a third structure which is ... | 02/24/2004 |
| 6520885 | All wheel drive axle disconnect device An axle disconnect device for use in an all wheel drive vehicle. The axle disconnect device includes a one-way overrunning clutch and a spring contacting the clutch. A spline locking ring contacts the spring on an end opposite of the clutch. A friction do... | 02/18/2003 |
| 6470659 | Four wheel drive working vehicle A four wheel drive working vehicle such as a front mower has a dual one-way clutch mechanism interlocked to right and left dirigible wheels. When the vehicle makes a turn in forward or backward running, the clutch mechanism breaks drive transmission only ... | 10/29/2002 |
| 6338404 | Locking device of power hand tool A locking device is provided between a gear train and an output shaft of a power hand tool. Pawls are arranged in a central bore of a fixed ring with an outer face thereof opposing an inner circumference of the central bore with a tiny gap therebetween. A... | 01/15/2002 |
| 6198242 | Powered sliding device for vehicle slide door The present powered sliding device comprises a wire drum, a motor for rotating the drum, and a clutch means provided between the drum and the motor. The clutch means has a coupled state for rotating the drum, an uncoupled state, and a brake state. The clu... | 03/06/2001 |
| 6189667 | Self-reinforcing friction clutch A friction clutch for motor vehicles has a casing which can be connected in a rotationally fixed manner to a driven flywheel mass. A pressure plate is arranged inside the casing with a pressure spring supported between the clutch casing and the pressure p... | 02/20/2001 |
| 6182808 | Viscous actuated ball ramp clutch having through shaft capability A differential device (11) of the type including a clutch pack (23), engaged by a ball ramp actuator (21), which is initiated by a viscous coupling (19;101). The output of the device (11) is an output shaft (13) which is hollow and extends through the ent... | 02/06/2001 |
| 6109124 | High-thrust clutch-type automotive electric lock Disclosed is a high-thrust clutch-type automotive electric lock which uses a motor to sequentially rotate a primary gear connected with a clutch assembly, a secondary gear, and a worm connected to the secondary gear, so that a push rod associated with the... | 08/29/2000 |
| 6082512 | Selectable one way stepless clutch A stepless ratchet one way clutch mechanism, which provides an improved ratchet tool, is disclosed. A drive head is rotatably fitted into a cylindrical recess in a wrench housing. The drive head includes a partially triangular shape with three flat sides ... | 07/04/2000 |
| 6053293 | Two-way clutch unit A two-way clutch comprising an input system rotational member (10) adapted to be rotatably driven by a driving source, an output system rotational member (60, 140) for taking out outwardly a torque transferred from the input system rotational member (10),... | 04/25/2000 |
| 6032774 | One way drive device with a dog clutch to transmit torque and a ratchet clutch to provide an overrun function A one way drive device for transmitting torque from a rotational input to a rotational output when the device is driven in a counterclockwise torque transmitting rotational direction by the rotational input. The device allows the rotational input to freel... | 03/07/2000 |
| 5947210 | Power screwdriver A power screwdriver has a tool body, a motor, a drive member rotatably driven by the motor, a spindle rotatably mounted on the tool body and a clutch mechanism provided between the drive member and the spindle. The clutch mechanism includes an engaging cl... | 09/07/1999 |
| 5913563 | Powered sliding device for vehicle sliding door A powered sliding device for a sliding door comprises a wire drum rotated by a motor, a wire cable connecting the wire drum and the sliding door, a clutch mechanism provided between the wire drum and the motor. The clutch mechanism has a first coupling st... | 06/22/1999 |
