Clutches and power-stop control inventions 11/07

20070272508 - Wet multi-plate clutch of mechanical coupling type: The present invention provides a wet multi-plate clutch of mechanical coupling type in which friction engaging elements and mechanical coupling elements are operated by a single piston and wherein the friction engaging elements are operated by an urging force of the single piston smaller than a predetermined load, and the... Agent: Miles & Stockbridge PC

20070272509 - Wet multi-plate clutch of mechanical coupling type: An electromagnetically operated unit for controlling a radial connection. The unit has a first device which is optionally coupleable with a second device. The second device includes a magnet and/or electromagnet. The unit also has radially movable switching elements that are supported about the circumference of one of the devices,... Agent: British Aerospace PLC Corporate Patent Dept.

20070272507 - All-wheel drive (awd) coupling with a variable travel ratio and wear compensation: In a torque coupling having an input flange, an input shaft, an actuator, and a multiple clutch pack, and a driving mechanism, the present invention broadly comprises an actuator for transferring the input toque to the output shaft. The actuator comprises an actuator plate which is limited to only rotational... Agent: Simpson & Simpson, PLLC

20070272510 - Travel-driving mechanism for self-propelled working machine: In a travel-driving mechanism for a self-propelled working machine such as a self-propelled lawn mower travels by using power of an electric motor 30, the torque of a driving shaft 50, which is driven by the power of the electric motor 30 through a power transmission unit 40, is transmitted... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20070272511 - Drive force transmitting apparatus for vehicle: A drive force transmitting apparatus for a vehicle including a drive source, a drive force transmitting path adapted to be connected to a drive shaft to transmit a drive force from the drive source to the drive shaft, and a clutch mechanism capable of connecting and disconnecting the drive force... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20070267263 - Overrunning clutch: An overrunning clutch is provided with improved structural characteristics to facilitate the use of grease lubrication. The clutch includes a hub disposed about a rotational axis and defining an inner raceway. A driven member is supported on the hub by a bearing and defines a radially inner surface spaced from... Agent: Dykema Gossett PLLC

20070267264 - Overrunning clutch: An overrunning clutch is provided that facilitates the use of grease lubrication and use of the clutch in high speed and/or high torque applications. In accordance with one aspect of the invention, a seal is disposed between the rollers in the clutch and a bearing that is disposed between the... Agent: Dykema Gossett PLLC

20070267265 - Clutch arrangement: A clutch arrangement has a clutch device with a clutch housing capable of rotating around an axis of rotation, where the clutch device is designed to establish or to separate a working connection between a drive and a take-off and is provided with clutch components in the form of a... Agent: Cohen, Pontani, Lieberman & Pavane

20070267266 - Transmission for transmitting torque smaller than adjustable value: A transmission for transmitting torque smaller than an adjustable value includes three transmitting elements. The first transmitting element includes a non-circular tunnel and a shoulder. The second transmitting element includes a non-circular insert inserted in the non-circular tunnel, wedges and a shoulder. The third transmitting element includes wedges engaged with... Agent: Kamrath & Associates P.A.

20070267267 - Viscous clutch with controlled drain back: A viscous fluid clutch for controlling the rotation of an engine cooling fan has a dividing disk separating a storage chamber from a working chamber. The dividing disk includes an opening having a geometry that defines a drain-back path to the working chamber regardless of the angular orientation of the... Agent: Leydig Voit & Mayer, Ltd

20070267269 - Electro-mechanical clutch: A clutch comprises an input pinion and an output pinion associated with a rotatable locking member that has a surface inclined with respect to an axis of rotation of the locking member. The surface cooperates with an engagement member, and the locking member is movable between a first position and... Agent: Carlson, Gaskey & Olds, P.C.

20070267270 - Coupling arrangment: A coupling arrangement includes a first clutch device for establishing a working connection between an electric machine and an internal combustion engine and a second clutch device for establishing a working connection between at least one of the machines and a takeoff. Each of the two clutch devices has its... Agent: Cohen, Pontani, Lieberman & Pavane

20070267268 - Method and device for checking the auto-opening function of an actuator-operated clutch: In a method for checking the auto-opening function of an actuator-operated clutch, the clutch is moved out of its closed position into its open position or out of its open position into its closed position by the actuator at a predetermined constant speed. During this movement of the clutch a... Agent: Simpson & Simpson, PLLC

20070261932 - Friction clutch with multiple belleville springs: A torque transfer apparatus is disclosed. The apparatus includes a housing, a friction pack including at least one pair of interacting surfaces operable to transfer torque, a first Belleville spring contacting a first region of the plate and contacting a first region of the housing, and a second Belleville spring... Agent: Krieg Devault LLP

20070256905 - Apparatus for joining components to a hub: The present invention broadly includes a hub assembly for a torque converter having a hub arranged to rotationally connect to a transmission input shaft and includes first and second radial surfaces, a first plate rotationally connected to a turbine, rotationally connected to the hub, and fixed in a first axial... Agent: Simpson & Simpson, PLLC

20070256906 - Overrunning clutch: An overrunning clutch comprising a ratchet wheel (1) and a plurality of pawls (2) is disclosed. Each of the pawls (2) is rotationally supported on a disk member (5) by a shaft (3). The clutch is characterized by a permanent magnet (4) being fixed on the disk member (5) between... Agent: Sheldon Mak Rose & Anderson PC

20070256907 - Dual clutch arrangement: A dual clutch arrangement for a dual clutch transmission for motor vehicles, having a first and a second friction clutch which are each fluidically actuable. A first piston arrangement serves to actuate the first friction clutch and has a first piston, a first piston space and a first centrifugal force... Agent: Knobbe Martens Olson & Bear LLP

20070251789 - Torque converter with turbine one-way clutch: The present invention broadly comprises a torque converter including a turbine and a one-way clutch rotationally connected to said turbine and an output hub for said converter. The one-way clutch rotationally disconnects the hub and the turbine when the hub receives torque from an input transmission shaft. In some aspects,... Agent: Simpson & Simpson, PLLC

20070251792 - One-way clutch with dampening: The present invention broadly comprises a one-way clutch in an automotive drive component. In some aspect, the component is a stator and the clutch includes first, second, and third radially disposed elements. The first and second elements lockingly engage. The third element is between the first and second plates and... Agent: Simpson & Simpson, PLLC

20070251788 - Drive plate and seal for a torque converter: A clutch assembly in a torque converter including a piston plate operatively arranged to apply axial pressure to a clutch in the clutch assembly. An annular member can be rotationally connected to a cover of the torque converter and rotationally connected to an outer circumference of the clutch. A first... Agent: Simpson & Simpson, PLLC

20070251793 - Dual function holding device operable under a system power loss condition: An electric clutch actuator capable of operating in two power loss conditions. For a condition where a normally engaged clutch is disengaged during a system power loss and the desired action is for the clutch to remain in the disengaged positional state, a holding device moves to a power off... Agent: Stevens & Showalter LLP

20070251795 - Wet-type multi-plate clutch: The present invention provides a wet-type multi-plate clutch comprising an external toothed plate formed by sticking a friction material onto a core plate and an internal toothed plate formed by a friction material onto a core plate and designed so that torque is transmitted by engaging the external toothed plate... Agent: Miles & Stockbridge PC

20070251791 - Lock-up clutch: A lock-up clutch can include a clutch piston arranged within a cover of a torque converter and adapted to be moved between a connected position and a non-connected position relative to the torque converter cover. A containing recess can be formed on a circumferential edge of the clutch piston for... Agent: Knobbe Martens Olson & Bear LLP

20070251790 - Lockup clutch for hydrodynamic components: The invention relates to a lockup clutch (1) for hydrodynamic components (2), comprising at least one primary wheel (4) and one secondary wheel (5), which define a working chamber (6), and having two inputs (26, 27)—a first input (26) linked to the secondary wheel (5) and a second input (27)... Agent: Ohlandt, Greeley, Ruggiero & Perle, LLP

20070251794 - Roller-type one-way clutch: The present invention provides a roller-type one-way clutch comprising an annular outer race provided at its inner periphery with a cam surface, an inner race spaced apart from the outer race in a radially inner diameter side and disposed in coaxial with the outer race for a relative movement therewith... Agent: Miles & Stockbridge PC

20070251796 - Magnetic clutch: A magnetic clutch is provided according to an embodiment of the invention. The magnetic clutch includes a shaft including a flange, a magnetic clutch hub installed on the shaft, with the magnetic clutch hub being magnetically responsive, and an actuator member that magnetically operates on the magnetic clutch hub and... Agent: The Ollila Law Group LLC

20070251797 - Wrap spring torque transfer device and method for improving service life of such device: A wrap spring torque transfer device including a housing, a shaft rotatably positioned at the housing, a hub rotatably positioned at the housing, a wrap spring disposed about the hub and the shaft; and capable of selectively facilitating or defeating torque transfer between the hub and the sleeve, a coil... Agent: Cantor Colburn, LLP