Clutches and power-stop control inventions 02/09

20090050430 - device for an assembly of a friction plate for a lockup clutch and a method of its assembly: It is capable of inserting inside the groove of the base component 30 which forms the circle ring groove 31 which places the several pieces of the fan-shaped friction material 10, the supporting component of the lower end side 21 which props up the lower edge of the fan-shaped friction... Agent: Sughrue Mion, PLLC

20090050436 - One-way drive device and method: A one-way drive device is disclosed herein and includes a pocket plate assembly having a disc-shaped pocket plate and a notch plate assembly having a disc-shaped notch plate. The device also includes an axially extending, open-ended cylindrical shell for containing therein the pocket and notch assemblies. This shell includes opposite... Agent: Pritzkau Patent Group, LLC

20090050431 - Starting clutch apparatus: The present invention provides a starting clutch apparatus comprising a damper device connected to an output member of an engine, a wet type multi-plate clutch housed in a housing, a piston for pressing the wet type multi-plate clutch to tighten the clutch, and an output member connected to an input... Agent: Miles & Stockbridge PC

20090050432 - Field coil assembly for electromagnetic clutch: The present invention relates to a field coil assembly for an electromagnetic clutch, which comprises an electromagnetic coil body 30 formed by winding an electromagnetic coil; a bobbin 20 for supporting the electromagnetic coil body 30; a field core 10 for receiving the bobbin 20 and the electromagnetic coil body... Agent: Birch Stewart Kolasch & Birch

20090050437 - Clutch device: A wet type multiple disc clutch 1 transmits torque from an engine a transmission and a clutch engaging portion 6, a piston 20, a first oil passage 11, a second oil passage 12, and an operating oil supply unit 43. The clutch engaging portion 6 includes a plurality of plate... Agent: GlobalIPCounselors, LLP

20090050433 - Power transfer device with torque limited pump: A lube pump is provided for supplying lubricant to various components of a power transmission unit of the type used in motor vehicles. The lube pump includes a pump assembly and a coupling mechanism for releaseably coupling the pump assembly to a driven shaft. The coupling is operable to release... Agent: Harness, Dickey & Pierce, P.L.C

20090050434 - Wet friction material: In case of the specification (without axis core lubrication) that there is no lubricating oil (ATF) supply from the inner peripheral side of the wet friction material, that is, in case that there is the lubricating oil supply only from the outer peripheral side, in segment-type friction materials 1, 1A... Agent: Sughrue Mion, PLLC

20090050435 - Parking lock device for transmission: A parking lock device mounted on a transmission without modifying the constitution of the base transmission as much as possible and is constituted in a compact size. A first coupling member 11 is spline-fitted and fixed to a rear end portion of an output shaft 1 of the transmission by... Agent: Mcginn Intellectual Property Law Group, PLLC

20090045023 - Torque converter damper flange with turbine centering feature: A torque converter including a turbine, an output shaft, and a damper having at least one cover plate radially fixed to the turbine, a flange driven by the damper and non-rotatably connected to the output shaft, the flange having an axially extending surface centering the cover plate.... Agent: Davidson, Davidson & Kappel, LLC

20090045024 - Overrunning radial coupling assembly having dual bearing support: An overrunning radial coupling assembly having dual bearing support is provided. The assembly includes an inner member having an outer peripheral surface and an outer member having an inner peripheral surface adjacent the outer peripheral surface in radially inner and radially outer relationship. At least one of the members is... Agent: Brooks Kushman P.C.

20090045025 - Clutch damper spring pocket improvement: A torsional damper with a hub assembly and a disc assembly has coil springs disposed therebetween. The coil springs are disposed in pockets defined in part by apertures in opposed cover plates. The apertures have sharply angled end portions providing deflection relief near the ends of the coil springs.... Agent: Eaton Corporation

20090045028 - Clutch actuation system with locking mechanism and method of controlling engagement of a clutch: A clutch actuation system for engaging and disengaging a clutch includes a hydraulically-actuated piston movable in response to hydraulic pressure to an apply position in which the piston is operable to engage the clutch. An electro mechanical actuator is movable in response to electric power to contact the piston at... Agent: Quinn Law Group, PLLC

20090045026 - Dual clutch transmission: A dual clutch transmission comprises a first clutch to be engaged for setting any one of forward-traveling odd-numbered speeds and a second clutch to be engaged for setting any one of forward-traveling even-numbered speeds. The dual clutch transmission establishes a desired forward-traveling speed by alternately engaging/disengaging the first and second... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.

20090045027 - Clutch arrangement: A clutch arrangement responsive to a speed difference including an input element and an output element that are rotatable relevant to one another, a friction clutch, and a pump. The friction clutch couples the input element with the output element in dependence on a hydraulic pressure prevails in a pressure... Agent: Harness, Dickey & Pierce, P.L.C

20090038903 - Torque converter with piston centered in clutch plate: A torque converter including a cover and a bridging clutch for selective connection to the cover, the bridging clutch including a clutch plate fixed to the cover and having an inner radial surface and having a piston having an outer radial surface opposite the inner radial surface. A method for... Agent: Davidson, Davidson & Kappel, LLC

20090038904 - Wedge clutch assembly: A wedge clutch assembly for power tools, drilling rigs and like machinery utilizing rotating drills. The wedge clutch assembly has a pinion shaft adapted in shape to support a pinion gear, a bronze clutch cup, an optional thrust bearing, and a steel wedge clutch spring washer retained by a fastener.... Agent: Litman Law Offices, Ltd.

20090038905 - Wet clutch: A wet clutch having friction surfaces, where at least one friction surface consists of a porous friction lining with essentially flat surface placed on a supporting part. In order to achieve better cooling of the friction lining and supporting part and of the opposing friction surface by means of cooling... Agent: Davidson, Davidson & Kappel, LLC

20090038908 - Friction clutch having a hydraulic actuator, and drive unit having at least one such friction clutch: The invention relates to a friction clutch having a single-acting actuator which is a piston-cylinder unit and is connected in a controllable fashion to a pressurized fluid source. In order to be able to carry out a fast pilot stroke up to the point at which the clutch makes contact,... Agent: Harness, Dickey & Pierce, P.L.C

20090038907 - Cancel plate: In order to prevents a crack from being generated in an end portion of stoppers (13) formed for regulating a diametrical expansion of a snap ring (2) in a cancel plate (1) due to stress concentration, the cancel plate (1) having an inner peripheral flange portion (12) locked to an... Agent: Harness, Dickey & Pierce, P.L.C

20090038906 - Seal integral type piston: To maximize pressing area of a clutch pressing portion (121f) in a seal integral type piston (120) having a piston main body (121) and a seal lip (122), a conical step surface (121g) is formed on an outer surface of an outer peripheral cylinder portion (121e), a clutch pressing portion... Agent: Harness, Dickey & Pierce, P.L.C

20090032351 - Combined sealing plate and leaf spring drive-plate: A hydraulic torque converter including a cover, a drive-plate driven by the cover, and a lock-up clutch having a piston plate, the piston plate being located between the drive plate and the cover, the piston plate and drive plate defining a hydraulic chamber for actuation of the piston plate.... Agent: Davidson, Davidson & Kappel, LLC

20090032352 - Motor actuated range shift and on demand 4wd: The present invention is a transfer case incorporating the use of a single actuator having an input member selectively engagable to a primary output member, an actuator operatively associated with a clutch assembly and a range selector, a first one-way clutch operably associated with the actuator, and a second one-way... Agent: Warn, Hoffmann, Miller & Lalone, .p.c

20090032363 - Brake structure for a main shaft of a direct drive torque motor: A brake structure for a main shaft of a direct drive torque motor comprises a body, a direct drive torque motor, a main shaft and a brake assembly. The main shaft is provided for fixing the torque motor and the body, and the brake assembly is mounted between the body... Agent: Dr. Banger Shia

20090032353 - Apparatus with active material surface in contact with pheological fluid and method of enhancing performance thereof: An apparatus is provided having an active material forming a surface thereof in contact with a rheological fluid. The active material is controllable to vary a surface geometry thereof between a rough or nonsmooth surface geometry to increase drag, and achieve an increase in stress transmitted through the fluid, when... Agent: General Motors Corporation Legal Staff

20090032365 - Bushing-type roller overrunning clutch with a solid outer ring: A bushing-type roller overrunning dutch comprising an inner and/or outer ring (4), clamping ramps (2) adapted to the needles or rollers (5), a cage (6), pressure springs (7) for the needles or rollers (5), a bushing (1) with integrally formed clamping ramps (2), and a solid inner or outer ring... Agent: Hedman & Costigan P.C.

20090032354 - Torque transfer device with torque limiting mechanism: An overrunning torque transmitting device that employs a plurality of cone clutches and an overload mechanism for limiting the torque transmitted through the device in a predetermined rotational direction. A method for transmitting torque is also provided.... Agent: Harness, Dickey & Pierce, P.L.C

20090032355 - Clutch ring travel limiter: An integrated wheel end which includes a movable clutch ring for selective engagement between an engaged and disengaged position for transferring driving torque from a drive shaft to the wheel end. The integrated wheel end incorporates a clutch ring abutment feature or travel limiter configured to position the movable clutch... Agent: Polster, Lieder, Woodruff & Lucchesi

20090032356 - Torque-transmitting device having a dimpled friction plate: A clutch including a reaction plate configured to exert a compression force. The clutch further includes a friction plate having a surface opposing the reaction plate. A friction material layer has a first surface attached to the surface of the friction plate, and a second surface opposing the reaction plate.... Agent: General Motors Corporation Legal Staff

20090032357 - Electromagnetic clutch: An electromagnetic clutch comprises a rotor rotatable with respect to the center of rotation, an armature facing the rotor with a clearance, a device for generating a magnetic attracting force between the rotor and the armature, a rotating member transmitting a driving force from the armature, and a plate spring... Agent: Brinks Hofer Gilson & Lione

20090032358 - Torque transfer device having reduced torque variation: An electrically actuated torque transfer device including an input shaft and at least one output shaft selectively coupled to the input shaft. At least one modulating clutch assembly selectively couples the input shaft to the output shaft. The modulating clutch assembly includes an electrical clutch operator configured to engage a... Agent: Borgwarner/bhgl

20090032366 - Piston for automatic transmission: To satisfy sealing ability and separation load between a seal ring and a piston main body 1, a piston 100 for an automatic transmission comprises a piston main body 1 and a seal ring 2 fitted thereto, the seal ring 2 integrally has a seal main body 22 of a... Agent: Harness, Dickey & Pierce, P.L.C

20090032359 - Hydraulic vehicle clutch system and method: A hydraulic system for a vehicle clutch assembly can include a pump and a purge valve for regulating hydraulic pressure supplied to the clutch. The hydraulic pressure at the pump can be set to a value higher than the operating pressure for the clutch. The purge valve can be configured... Agent: Cermak Kenealy & Vaidya, LLP

20090032360 - Hydraulic vehicle clutch system and method: A hydraulic system for a vehicle clutch assembly can include a pump and a purge valve for regulating hydraulic pressure supplied to the clutch. The hydraulic pressure at the pump can be set to a value higher than the operating pressure for the clutch. The purge valve can be configured... Agent: Cermak Kenealy & Vaidya, LLP

20090032361 - Wet friction plate: To control initial shudder in a wet paper friction plate, the frictional sliding surface of a wet paper friction member is preconditioned by frictional sliding contact with a mating plate until its bearing length ratio tp at a cutting depth of 10 μm is in the range from 70 to... Agent: Howson And Howson

20090032362 - Wrap spring clutch: A wrap spring clutch according to some embodiments has a center shaft; a wrap spring wrapped around the center shaft in a direction of winding, and having two wrap spring ends and an abutting surface for co-operation with a friction surface; and a hollow shaft positioned around the wrap spring;... Agent: Michael Best & Friedrich LLP

20090032364 - Method and apparatus for lash prevention using coil springs: A vibration damper including a first spline having a plurality of first teeth, a second spline having a plurality of second teeth, a third spline having a plurality of third teeth and at least one spring interconnected between the first and second splines, wherein the plurality of third teeth are... Agent: Simpson & Simpson, PLLC