Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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 |
| 7731006 | Airactuated cone clutch fan drive A clutch assembly having an overall diameter and overall axial length. Both the axial length and the ratio of the length to the diameter are reduced. A translatable clutch piston is in communication with a pressure chamber and is movable between a piston neutral pos... | 06/08/2010 |
| 7604106 | Clutch system A clutch system may include in certain embodiments a clutch body attached to a drive member such as a drive pulley, wherein the clutch body may be removed from the drive member without disassembling the clutch body. In various embodiments, the clutch body may includ... | 10/20/2009 |
| 7571795 | Coupling device of a motor vehicle A coupling device of a motor vehicle with a clutch arranged in the force flow between a drive motor and a transmission and a dedicated servo-assisted control mechanism. The clutch is designed by way of a pressing spring as a passively lockable and via a clutch relea... | 08/11/2009 |
| 7533764 | Clutch system A clutch system may include in certain embodiments a clutch body attached to a drive member such as a drive pulley, wherein the clutch body may be removed from the drive member without disassembling the clutch body. In various embodiments, the clutch body may includ... | 05/19/2009 |
| 7484610 | Apparatus for the actuation of clamping elements that can be controlled remotely In an apparatus for clamping and releasing a gearwheel rim with respect to a main gearwheel that bears the gearwheel rim, a clamping apparatus includes an axially guided, displaceable clamping plate clamping the gearwheel rim between the plate and the main gearwheel... | 02/03/2009 |
| 7467702 | Clutch release bearing and method of manufacture Hydraulically operated clutch release bearing device of the type including an operating element provided with an annular piston and a seal in contact with the piston, and a rolling-contact bearing axially secured to the operating element, the piston including a rear... | 12/23/2008 |
| 7438169 | Clutch system A clutch system may include in certain embodiments a clutch body attached to a drive member such as a drive pulley, wherein the clutch body may be removed from the drive member without disassembling the clutch body. In various embodiments, the clutch body may includ... | 10/21/2008 |
| 7419041 | Main shaft dog clutch and method A transmission shaft is divided into a first shaft portion releasably connectable to a first electric motor/generator via a first gear set and a second shaft portion connected to a second electric motor/generator via a second gear set. The first and second shaft por... | 09/02/2008 |
| 7331437 | Friction clutch assembly having a spiral snap ring friction liner retention device A friction clutch assembly for use in an on/off fan drive is provided having a simplified method for retention of the friction liner between the clutch housing and rotating drive shaft. The friction clutch assembly introduces a groove within the inner rearward porti... | 02/19/2008 |
| 7320390 | Outboard clutch assembly support and clutch hub brake A clutch assembly outboard support comprising at least one bearing mounted to an outer structure in or near the clutch assembly, e.g. the clutch housing or protective cover, and mounted to or impacting upon the clutch assembly itself, to relieve the force applied to... | 01/22/2008 |
| 7311189 | Clutch system and method A clutch system may include in certain embodiments a clutch body attached to a drive member such as a drive pulley, wherein the clutch body may be removed from the drive member without disassembling the clutch body. In various embodiments, the clutch body may includ... | 12/25/2007 |
| 7267215 | Actuating device for transferring a control piston force of an engaging/disengaging device to a double clutch An actuating device for transferring a control force of an engaging/disengaging device to a double clutch for coupling a drive shaft to two transmission input shafts is described. The actuating device includes at least two first pistons corresponding to the first cl... | 09/11/2007 |
| 7258217 | Frictional engagement structure using multiple disks A frictional engagement structure includes a first drum arranged at the inner periphery of a transmission casing, a second drum arranged at the inner periphery of the first drum, first friction plates splined to the casing or the first drum, second friction plates s... | 08/21/2007 |
| 7237665 | Thermal energy transfer limited rotating shaft for a pneumatic fan drive system A clutch assembly (20) for a fan drive system (12) of an engine (14) includes a translatable clutch housing (30) that is coupled to a fan (16). A rotating shaft (27) has a non-grooved thermal energy transfer portion (28 | 07/03/2007 |
| 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 |
| 7201267 | Clutch system and method A clutch system may include in certain embodiments a clutch body attached to a drive member such as a drive pulley, wherein the clutch body may be removed from the drive member without disassembling the clutch body. In various embodiments, the clutch body may includ... | 04/10/2007 |
| 7178650 | Structure of multiple disc clutch A multiple disc clutch including a clutch outer and a clutch inner, for enabling a gentle releasing/engaging operation. The multiple disc clutch includes a clutch inner having a clutch center and a clutch piston, and outer and inner friction discs being alternately ... | 02/20/2007 |
| 7121396 | Hydraulic operating arrangement for clutches and the like The friction clutch between the prime mover and the change-speed transmission in the power train of a motor vehicle is actuatable by a slave cylinder cooperating with a master cylinder wherein the piston is movable by a clutch pedal or by an electric actuator. The c... | 10/17/2006 |
| 7117986 | Clutch release bearing, in particular for motor vehicle The invention concerns a clutch release bearing comprising an axially mobile piston (14), and a ring (26I), integral with a raceway (C1), hooked on the piston (14) with axial-effect squeezing elastic means (38, 40). The ring (26... | 10/10/2006 |
| 7104376 | Clutch arrangement The invention relates to a clutch arrangement, in particular for a motor vehicle, comprising a housing arrangement which is filled or can be filled with fluid, at least one first friction member which is coupled with the housing arrangement for commonly rotating, at... | 09/12/2006 |
| 7104382 | Clutch system A clutch system may include in certain embodiments a clutch body attached to a drive member such as a drive pulley, wherein the clutch body may be removed from the drive member without disassembling the clutch body. In various embodiments, the clutch body may includ... | 09/12/2006 |
| 7055668 | Anti-air lock system for a pneumatic fan drive clutch assembly A clutch assembly (20) for a fan drive system (12) of an engine (14) includes a translatable clutch housing (30) that is coupled to a fan (16). A rotating shaft (32) is coupled to a drive pulley (22) of the engine ( | 06/06/2006 |
| 7032730 | Gearbox with central clutch release A vehicle gearbox (2) comprises a centrally operating device (28) for releasing the clutch (6), which is provided between the clutch disc and the clutch bell housing of the gearbox (2). A transmission control unit (22) provided on ... | 04/25/2006 |
| 7021444 | Friction clutch for a drive assembly of a motor vehicle A friction clutch intended for a drive assembly of a motor vehicle, operates between an internal-combustion engine and a transmission. The clutch has a clutch release device arranged inside a transmission/clutch housing and has a clutch release bearing and a hydraul... | 04/04/2006 |
| 7005596 | Cover member for illuminated pushbutton switch An illuminated pushbutton switch cover member has a key seat and a resin key top. An indicator portion provided in the resin key top is illuminated with light from an internal light source provided below the key seat, and the light is emitted from the inside to the ... | 02/28/2006 |
| 6907975 | Clutch, in particular for motor vehicle, with pneumatic control A clutch for a motor vehicle having an annular diaphragm (54) with a concave clutch characteristic curve and a pneumatic actuator (76) acting on the diaphragm (54) for clutch release. A mechanism (86, 88) is provided to generate a supplem... | 06/21/2005 |
| 6883658 | Device for optional engaging and disengaging of a friction clutch for motor vehicles A device is disclosed for the optional engaging and disengaging of a friction clutch for motor vehicles with a preferably hydraulic actuating mechanism, such as a central disengaging device, which, in order to apply an actuating force, is operatively connected with ... | 04/26/2005 |
| 6880690 | Driving member for rotating component intergral with a printing machine and method for separating said driving member A rotating component of a printing machine is driven by a motor. A journal of the rotating components is connected to the shaft of the motor by at least a first coupling. The motor is supported for movement toward and away from the rotating component. The rotating c... | 04/19/2005 |
| 6874606 | Torque limiting clutch having centrifugally regulated characteristic torque A torque limiting clutch or coupler is provided for implementation between input and output shafts. A spring biased friction stack assembly establishes a characteristic breakaway torque of the unit. A torque modifying plate is fixed to a pressure plate and, in conju... | 04/05/2005 |
| 6868951 | Slave cylinder for a hydraulic system for actuating a friction clutch of a motor vehicle Slave cylinder for a pressure medium-actuated system for actuating the friction clutch of a motor vehicle, the slave cylinder including a cylinder housing, which is concentric to a transmission shaft and in which a ring-shaped piston is held, the piston being connec... | 03/22/2005 |
| 6840364 | Power train for use in motor vehicles and the like A power train for use in motor vehicles has a friction clutch including a housing which rotates with the output shaft of the engine and a clutch disc which transmits torque to the input shaft of a change-speed transmission in the engaged condition of the clutch. The... | 01/11/2005 |
| 6786317 | Hydraulic clutch assembly A hydraulic clutch assembly is equipped with a spring-drive hydraulic clutch, which includes a gear rotatably mounted on a transmission shaft and a clutch cylinder fixedly mounted on the transmission shaft, first and second friction elements respectively supported o... | 09/07/2004 |
| 6725993 | Connecting arrangement for a clutch-release mechanism A connecting arrangement for a clutch-release mechanism which is concentric with respect to a longitudinal axis of a clutch arrangement includes a connecting line, which can be connected to the clutch-release mechanism for the purpose of control, and a fastening dev... | 04/27/2004 |
| 6719115 | Hydraulic operating arrangement for clutches and the like The friction clutch between the prime mover and the change-speed transmission in the power train of a motor vehicle is actuatable by a slave cylinder cooperating with a master cylinder wherein the piston is movable by a clutch pedal or by an electric actuator. The c... | 04/13/2004 |
| 6659252 | Clutch actuating apparatus The housing of the slave cylinder in an apparatus for actuating a friction clutch between the engine and the input shaft of the change-speed transmission in the power train of a motor vehicle has a one-piece metallic or plastic member which is non-rotatab... | 12/09/2003 |
| 6648117 | Starting clutch and method for controlling same The present invention provides a starting clutch in which an input side element and an output side element are joined together by applying an axial load thereby to transmit a power, which clutch comprises an urging device for always providing the axial lo... | 11/18/2003 |
| 6612414 | Hydraulically controlled clutch release bearing for a diaphragm clutch, notably for a motor vehicle, having a guide sleeve A clutch release bearing having a fixed portion (5,6) including an inner support tube (6) and an outer body (5) concentric therewith which defines a control chamber (50) capable of being supplied with a fluid and housing an axially movable tubular piston ... | 09/02/2003 |
| 6595341 | Aluminum-coated plastic member A composite part of a clutch for use in a motor vehicle has a plastic carrier and a film of oxidized aluminum or an aluminum alloy overlying and adhering to that part of the carrier which is in sliding contact with at least one other part of the clutch. O... | 07/22/2003 |
| 6578690 | Clutch actuator A fluid pressure operated actuator mechanism for a friction clutch is provided that includes a housing having a generally annular piston disposed therein that is operatively engaged with a resilient member that is pivotably connected to a clutch throw-out... | 06/17/2003 |
| 6575283 | Actuation device for a friction clutch In an actuation device for a friction clutch which is arranged in the drivetrain of a motor vehicle between a drive unit and a transmission, comprising a pressure medium force cylinder arrangement by means of which the friction clutch can be actuated via ... | 06/10/2003 |
