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Endless belt power transmission systems or components November recently filed with US Patent Office 11/09

20090291787 - Power transmission device: A power transmission device is capable of switching the rotation direction of a drive shaft between positive rotation and negative rotation as power is transmitted to the drive shaft from a drive source via the power transmission device. To cause positive rotation of the drive shaft, only the positive rotation... Agent: Arent Fox LLP

20090291788 - Hydraulic actuator for belt type continuously variable transmission: A hydraulic actuator for a belt type continuously variable transmission, with which a smooth operation is secured and both superior productivity and reduced manufacturing costs can be expected, includes a first cylinder provided on a movable sheave, a drum having a first drum portion that covers the first cylinder and... Agent: Smith, Gambrell & Russell

20090291789 - Motion resisting apparatus for a bicycle derailleur: A bicycle derailleur apparatus comprises a base member for coupling to a bicycle frame, a movable member coupled for movement relative to the base member, a chain guide coupled to the movable member for guiding a chain among a plurality of sprockets in response to movement of the movable member,... Agent: Deland Law Office

20090291790 - Pulley assembly and auto-tensioner: A pulley assembly of the invention is adapted to impart torsion spring capability between an inside member and an outside member by means of a simple structure. By virtue of the torsion spring capability, the pulley assembly can effectively reduce the variation of belt tension exerted on a pulley portion... Agent: Birch Stewart Kolasch & Birch

20090291791 - Tensioner assembly with sealed pulley: A pulley assembly operable in connection with a tensioner assembly is provided for tensioning a belt. The pulley assembly includes one or more elements for sealing the pulley to protect the pulley assembly in harsh environments. For instance, the pulley assembly may include one or more shields for protecting the... Agent: Dann, Dorfman, Herrell & Skillman

20090291792 - Toothed belt gear and a process for producing the same: A toothed belt gear for a toothed belt drive with a cup shaped or bell-shaped base body of metal and a cogging arranged on the outside circumference of the base body, in which the cogging of the base body is closed on each of both front sides by a flanged... Agent: Lackenbach Siegel, LLP

20090291793 - Pulley apparatus for retaining an object in a stationary position: A system and method for retaining an object in a stationary position is provided. Generally, the system contains a pulley apparatus for retaining an object in a stationary position, the apparatus comprising a conical pulley rotateable about an axis, an exterior surface of the pulley having a convex shape, a... Agent: Hayes, Soloway P.C.

20090291794 - Vehicular power transmission apparatus: In a motor generator pulley 122, a mechanical clutch 105 and a switching unit 132 are provided such that the mechanical clutch 105 is interposed between a first power transmission unit 104A and a second power transmission unit 104B and can transmit power even when an engine 102 serves as... Agent: Arent Fox LLP

20090291795 - Power transmission mechanism and manipulator: A power transmission mechanism comprising: a flexible power transmission element; a pair of a drive pulley and a driven pulley on which the flexible power transmission element is wound, each the pulley having a pin-embedding hole formed to extend from the outer circumferential thereof toward the center thereof, and a... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, L.L.P.

20090291796 - Power transmission belt: A power transmission belt with a body made from a first rubber composition in which at least one load carrying member is embedded. The body has a plurality of laterally spaced ribs with exposed surfaces on the inside of the body. The ribs are made from a second rubber composition... Agent: Wood, Phillips, Katz, Clark & Mortimer

20090286633 - Vehicular belt-driven continuously variable transmission and control method thereof: In a vehicular belt-driven continuously variable transmission, belt squeezing force is inhibited from becoming excessive and a safety factor, with respect to belt slip, of belt squeezing force applied to a transmission belt (48) is reduced to a value that is less than or equal to 1.5 by reducing a... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20090286634 - Chain: In a roller chain or bushing chain, oil introducing holes in a bushing are offset laterally from a central location between the inner link plates, located in close proximity to the inner link plates, but not buried within the holes of the inner link plates in which the bushing is... Agent: Howson & Howson LLP

20090286635 - Tension regulating apparatus for chain of leftover food treating device: The present invention provides a tension regulating apparatus for a chain of a leftover food treating device which comprises an agitation shaft having agitation blades and rotatably installed in an agitation tank and a rotation unit installed on one side of the agitation shaft for providing the agitation shaft with... Agent: Mcdermott Will & Emery LLP

20090286636 - Sealed tensioner: A sealed tensioner comprising a base, an arm pivotally engaged with the base, a spring engaged with the base and the arm, a bushing operationally disposed between the base and the arm, the arm being pivotally engaged with the bushing, a first seal engaged with the arm for preventing a... Agent: The Gates Corporation

20090286637 - Tensioning device for a traction mechanism, in particular a belt or a chain: A tensioning device for a traction mechanism, in particular a belt or a chain, is provided including a lever arm (2, 19) over which the traction mechanism is guided and on which a tensioning spring is arranged with its one end, the other end of the tensioning spring is arranged... Agent: Volpe And Koenig, P.C.

20090286638 - Dual-ratchet wheel transmission apparatus: A dual-ratchet wheel transmission apparatus includes: a drive wheel set, having a first drive wheel and a second drive wheel coaxially integrated with a drive shaft; a driven wheel set, being coaxially set with a driven shaft in which the driven shaft is connected to an output for transmission, the... Agent: Hdls Patent & Trademark Services

20090286639 - Sprocket for chain: A sprocket for a chain drive using a roller or bushing chain has a plurality of different pitch angles, including both pitch angles larger than the standard pitch angle, and pitch angles smaller than the standard pitch angle. The number of pitch angles in the sprocket larger than the standard... Agent: Howson & Howson LLP

20090286640 - Sprocket for chain: A sprocket of a chain transmission has at least two different pitch angles arranged irregularly in the direction of the circumference of the sprocket's pitch circle. The diameter of the tooth gap bottom circle of the sprocket is larger than the diameter of tooth gap bottom circle of a standard... Agent: Howson & Howson LLP

20090286641 - Pump drive of an automatic transmission: A pump drive of an automatic transmission with a hydrodynamic torque converter driven by a drive motor and with an oil pump driven by a pump wheel of the torque converter. The pump wheel of the torque converter is connected to a converter hub that extends from the pump wheel... Agent: Davis & Bujold, P.l.l.c.

20090286642 - Chain: The outer link plates of a roller chain or rollerless bushing chain have one or more curved grooves formed by pressing, on their inner faces. The grooves connecting one of two pin holes formed in each plate to the other pin hole.... Agent: Howson & Howson LLP

20090275429 - Bicycle rear derailleur: A base member is provided for a bicycle rear derailleur that basically comprises a housing portion and a fixing bolt. The housing portion is provided with a blind bore. The fixing bolt has a first portion rotatably supported by the housing portion within the blind bore and a second portion... Agent: GlobalIPCounselors, LLP

20090275430 - Force limiting tensioning arm: A tensioner for a chain driven power transmission system of an internal combustion engine, having a ratchet as part of the tensioning system is disclosed. The tensioner contains at least one bracket that is pivotally mounted to the engine adjacent one strand of the chain. The bracket contains a chain... Agent: Borgwarner Inc. C/o Brown & Michaels, PC

20090275431 - Ratchet mechanism for a chain drive: A ratcheting tensioning device for a closed loop chain driven power transmission system of an internal combustion engine consisting of a base tensioner arm (12) and an adjusting tensioner arm (14) which each contact different strands or chain. Optionally, each arm may have a chain guide element for contacting the... Agent: Borgwarner Inc. C/o Brown & Michaels, PC

20090275432 - Tensioner with hub load balancing feature: A tensioner assembly with a drive member, a tensioner arm, a shaft, a pivot bushing, a torsion spring and a load balancing element. The tensioner arm has a hub portion, a drive member mount and an arm disposed therebetween. The drive member is coupled to the drive member mount. The... Agent: Magna International, Inc.

20090275433 - Synchronous belt sprocket: A sprocket comprising at least one groove for engaging a toothed belt, said groove having a flank, the flank having a groove tip radii (R1) of between approximately 105% and approximately 125% of a belt tooth root radii (R8) when the toothed belt is in rack form, said groove tip... Agent: The Gates Corporation

20090275434 - Chain wheel and timing chain drive for the compensation of dynamic loads: The invention relates to a chain wheel (2, 3), especially for a timing chain drive, with a rotary shaft, a sprocket wheel (7) positioned around the rotary shaft featuring multiple alternating teeth (17) and tooth gaps (16) distributed around its circumference, as well as at least one chain guide (8),... Agent: Leydig Voit & Mayer, Ltd

20090275435 - Link chain superior in low temperature toughness and heat treatment method of same: The present invention provides a link chain superior in low temperature toughness comprised of low carbon steel, said link chain characterized in that two-stage high frequency quenching-tempering is performed to give a link chain which has a martensite single phase structure, has an austenite grain size of 9 to 12,... Agent: Staas & Halsey LLP