Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 7364524 | Driveline coupling for electric module A module with an axle assembly, which has a housing, a differential, an input shaft, a pair of shafts and a pair of wheel hubs, and an auxiliary drive unit that includes an electric motor and an overrunning clutch. The differential and the input shaft are disposed i... | 04/29/2008 |
| 7334671 | Actuating device for a clutch An actuating device (18) or a clutch (16) of a motor vehicle (2) comprising one electric motor (34), one gearing (36, 40, 42, 44) which converts rotational motion of the electric motor (34) into a translatory motion and one ... | 02/26/2008 |
| 7222708 | Clutch actuator A clutch actuator is provided for operating a clutch between a drive motor and a gearbox on a motor vehicle, in particular a commercial vehicle, including a linearly operating pin, acting on a release mechanism which is coaxial to a mid-axis of the clutch. The pin i... | 05/29/2007 |
| 7156217 | Motion transmitting apparatus A motion transmitting apparatus wherein an electric motor, an engine or another prime mover rotates an axially fixed first part relative to a coaxial axially movable non-rotatable second part. The structure which serves to move the second part axially in response to... | 01/02/2007 |
| 7086937 | Wheel shaft supporting apparatus for grinding machine A pair of hydrostatic radial bearing devices 42, 43 is mounted on right and left side surface of a front portion of a wheel slide 34 in order to support rotatably wheel shafts 45, 52 respectively. A thrust bearing device 45 mounted in eit... | 08/08/2006 |
| 7062987 | Ball bearing and a continuously variable speed transmission of belt type A ball screw in a continuously variable speed transmission has an axially immovable pulley half (2) and axially movable pulley half (3) both mounted on a rotary shaft (4). The axially movable pulley half (3) is moved by a ball screw (2... | 06/20/2006 |
| 7040472 | Transfer case with controllable clutch A transfer case (1) with controllable clutch (5) for a motor vehicle, especially for a motor vehicle with part-time four-wheel drive, for distributing a driving torque coming in via a drive shaft (2) to at least two output shafts (3, 4). ... | 05/09/2006 |
| 7021441 | Distributor gear with adjustable coupling A distributor gear (1) with an adjustable coupling device (5) for a vehicle, in particular for a vehicle with a shiftable all-wheel drive is described for the distribution of an incoming drive torque via a drive shaft (2) to at least two output ... | 04/04/2006 |
| 6951521 | Transmission actuator A transmission actuator has a torque generating mechanism for generating a torque from a drive shaft, a speed reduction mechanism for multiplying a torque from the torque generating mechanism through a differential motion produced by a difference in gear ratio betwe... | 10/04/2005 |
| 6945375 | Torque transfer device having an electric motor/brake actuator and friction clutch 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 a clutch a... | 09/20/2005 |
| 6932204 | Power transmission device for a four-wheel drive vehicle 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... | 08/23/2005 |
| 6886675 | Motion transmitting apparatus for use in power trains and the like An apparatus which can effect relative movements between first and second parts that are rotatable relative to each other between several positions utilizes a helix having a stack of convolutions and being non-rotatably associated with one of the parts, a follower (... | 05/03/2005 |
| 6851537 | Worm driven ball screw actuator for traction clutches A torque transfer mechanism for controlling the magnitude of a clutch engagement force exerted on a clutch pack that is operably disposed between a first rotary member and a second rotary member includes an actuator having an inner sleeve, an outer sleeve, and a plu... | 02/08/2005 |
| 6848557 | Clutch actuator unit A clutch actuator unit comprises a housing (8, 9), a screw mechanism and an actuator head which at one end engages the screw mechanism (1, 2) and at the other end has an actuating end (18), which actuator head (16) can be displaced in axi... | 02/01/2005 |
| 6814197 | Actuating device for a friction clutch device, possibly a dual or multiple friction clutch device An actuating device for a friction clutch device installed in the drive train of a motor vehicle introduces actuating forces, especially clutch-engaging or clutch-releasing forces, to the friction clutch device to actuate at least one friction clutch of the friction... | 11/09/2004 |
| 6808053 | Torque transfer device having an electric motor/brake actuator and friction clutch 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 a clutch a... | 10/26/2004 |
| 6808052 | Torque transfer device with double ball screw 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 a clutch a... | 10/26/2004 |
| 6780132 | Selectively actuated transfer case A transfer case for use in motor vehicles for transferring drive torque from a powertrain to first and second drivelines includes a first output shaft that is connected to the powertrain of the vehicle and is adapted to transmit drive torque from the powertrain to t... | 08/24/2004 |
| 6779641 | Torque transfer clutch with ball screw actuator The present invention is directed to a power transfer system for a four-wheel drive vehicle equipped with a torque transfer coupling which includes a clutch pack and a ball-screw actuator. The ball-screw actuator functions to axially translates an apply plate to ope... | 08/24/2004 |
| 6780134 | Torque transfer clutch with ball screw actuator The present invention is directed to a power transfer system for a four-wheel drive vehicle equipped with a torque transfer coupling which includes a clutch pack and a ball-screw actuator. The ball-screw actuator functions to axially translates an apply plate to ope... | 08/24/2004 |
| 6755290 | Power transmission device for a four-wheel drive vehicle 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... | 06/29/2004 |
| 6702084 | Clutch operator arrangement A clutch operator arrangement for introducing an actuating force into a friction clutch includes a ball screw arrangement.... | 03/09/2004 |
| 6698565 | Selectively engageable differential A differential assembly for an automotive vehicle includes a differential housing and a differential gear assembly mounted within the differential housing. A connector plate is adapted to connect to a drive shaft of the vehicle and a clutch pack is mounte... | 03/02/2004 |
| 6691850 | Device for operating a clutch The invention is based on a device for actuating a clutch (10), in particular for motor-vehicle drives, having an electronically controllable clutch servo unit (16) that comprises an electric motor (18, 52) and a reduction actuator gear (20) having two ge... | 02/17/2004 |
| 6684993 | Apparatus for controlling a clutch in an automatic vehicle transmission An apparatus for controlling the clutches in an automatic vehicle transmission includes a series of electric motors attached to the transmission housing, each of which has a motor shaft with a gear attached to it. A torque-to-thrust mechanism is driven by... | 02/03/2004 |
| 6523660 | Wheel hub device for a bicycle A wheel hub device includes a driving barrel and a hub shell mounted rotatably on an axle of a bicycle. When the shell is rotated via the barrel to move the bicycle forward, a coupling socket disposed in the shell threadedly engages the barrel and frictio... | 02/25/2003 |
| 6503167 | Externally actuated locking differential assembly An electronically controlled locking differential assembly including a friction clutch assembly provided within a differential case for selectively restricting differential action. The friction clutch assembly is actuated by a selectively controllable act... | 01/07/2003 |
| 6454071 | Toothed coupling for tracked vehicles A toothed coupling for tracked vehicles is provided having a coupling sleeve with internal toothing in engagement with one externally toothed gear and capable of engagement with another externally toothed gear. The toothed coupling is axially displaceable... | 09/24/2002 |
| 6401895 | Freewheeling hub device for a bicycle A freewheeling hub device is adapted to be mounted rotatably on an axle of a bicycle, and includes a hub shell which can be driven by a clockwise rotation of a driving barrel to rotate for forward movement of a bicycle wheel when a coupling socket engages... | 06/11/2002 |
| 6316891 | Interlock circuit for a lawn and garden tractor An interlock system for a lawn and garden tractor or similar vehicle includes a latching circuit with a two-pole seat switch and an operator push button switch connected to a latch relay to provide operator actuated mow in reverse feature. The system prov... | 11/13/2001 |
| 6244405 | Free-wheel hub transmission mechanism A free-wheel hub transmission mechanism includes an axle coaxially inserted into a through hole of a spoke mounting barrel such that a right axle portion thereof extends outwardly from the spoke mounting barrel. A drive transmission block is disposed in t... | 06/12/2001 |
| 6167997 | Electronically controlled clutch actuation system Clutches are provided with electrically controlled actuation elements for selectively moving a sleeve between engaged and non-engaged positions. The electrically controlled elements may include rotary motors driving a sleeve through a ball screw connectio... | 01/02/2001 |
| 5862875 | Differential control unit for front and rear wheels of a 4-wheel drive vehicle A differential control unit for a 4-wheel drive vehicle is disposed between a transmission and a propeller shaft, controls a violator of the speed regulations between front and rear wheels generated when turning the 4-wheel drive vehicle, and limits the t... | 01/26/1999 |
| 5820280 | Printer with variable torque distribution A printer includes a variable torque assembly that allows a printer controller to vary torque on supply and take-up reels in response to monitored diameter of the supply or take-up reels. In one embodiment, the variable torque assembly is a torque divider... | 10/13/1998 |
| 5718315 | Free-wheel hub transmission mechanism A free-wheel hub transmission mechanism includes an axle, and an aluminum hub barrel and a driving barrel which are rotatably mounted on the axle. The driving barrel which carries a sprocket wheel has a threaded body portion extending into the hub barrel ... | 02/17/1998 |
| 5691587 | Magnetic centrifugal clutch A magnetic coupling device has an electroconductive rotor presenting a band of electroconductive material and has a magnet rotor with permanent magnets which are slide-mounted to move radially outward responsive to centrifugal force in opposition to a spr... | 11/25/1997 |
| 5669480 | Clutch operating apparatus A friction clutch between an engine and a transmission in a motor vehicle has a diaphragm spring with prongs which are moved axially by a bearing in order to disengage the clutch. The bearing is mounted on an actuating device including a driven part carri... | 09/23/1997 |
| 5562192 | Electronic clutch control mechanism for a vehicle transmission The present invention is directed to an electronic clutch control mechanism for use in a vehicle transmission such as a four wheel drive transfer case which is utilized to control engagement of a clutch between two wheel drive, automatic ("on demand" four... | 10/08/1996 |
| 5511586 | Device for affixing a drive element to a loom warp beam shaft A device for affixing a shaft drive element to a loom warp beam shaft includes a clamping element having teeth, teeth at one end of the drive shaft and teeth on the drive element, and a displacement mechanism for sliding the clamping element and drive ele... | 04/30/1996 |
| 5503602 | Clutch actuating device having pilot clutches for use in a vehicle interaxle differential A clutch actuating device for use in a vehicle drivetrain subassembly having a clutch and a rotatable drive member, including first and second rotating members which are rotatably mounted to the drive member and are free to rotate relative to one another ... | 04/02/1996 |
