Endless belt power transmission systems or components inventions 04/08

20080096705 - Structure of mechanical arm transmission structure: A mechanical arm transmission structure includes a tubular horizontal base, a drive belt wheel and a driven belt wheel mounted inside the horizontal base, a transmission belt mounted on the drive belt wheel and the driven belt wheel with the upper part thereof suspending above the horizontal base, a motor... Agent: Birch Stewart Kolasch & Birch

20080096706 - Low profile rear derailleur with a chain receiving space: A bicycle rear derailleur comprises a base member; a movable member that supports a chain guide including a pulley that rotates around a pulley axis, wherein the pulley has a pulley plane; and a linking member coupled between the base member and the movable member so that the chain guide... Agent: Deland Law Office

20080096703 - Noise damper for a driven pulley of a continuously variable transmission: The driven pulley (10) comprises two conical sheaves (12, 14), both mounted to a shaft, and at least two symmetrically-disposed cam surfaces (30), each corresponding to cam followers (32) provided for engaging the respective cam surfaces (30). The cam followers (32) are maintained in position by respective supports (38). A... Agent: Wildman Harrold Allen & Dixon LLP

20080096704 - Apparatuses and methods for controlling a variable speed transmission: Apparatuses and methods are disclosed for controlling a variable-speed transmission utilizing a pulley structure including first and second pulley members coupled for free rotation together about a shaft. The second pulley member can be axially movable relative to the first pulley member, and can include a pulley contact surface disposed... Agent: Jenkins, Wilson, Taylor & Hunt, P. A.

20080096707 - Chain tensioner: A chain tensioner is provided which can prevent separation of the plunger. In a cylinder chamber 12 of the housing 11, a plunger 13 and a spring 15 that biases the plunger 13 outwardly are mounted. The housing 11 is provided with an oil supply passage 17 communicating with a... Agent: Wenderoth, Lind & Ponack, L.L.P.

20080096708 - Drive apparatus: A drive apparatus for converting a substantially linear driving force to a rotary propulsive force where in apparatus comprises a pedal assembly for accepting a substantially linear drive force and a drive assembly for transferring the substantially linear drive force to a rotary motion through a power transference assembly linked... Agent: Italia Ip

20080096709 - Chain transmission device: A chain transmission comprises a composite chain having a set of sprocket-engaging rollers disposed between sets of link plates having sprocket-engaging teeth, and a sprocket having three sets of sprocket teeth. As the chain approaches the sprocket, a rear flank of a link plate tooth first comes into contact with... Agent: Howson And Howson

20080096710 - Plate-link chain with convex-concave contact of the rocker members: A chain made from a number of links that are connected to each other by a hinge joint including at least one rocker member that includes a rolling surface that rolls against a rolling surface on a corresponding chain link. The rocker member is in contact with the corresponding link... Agent: Alfred J Mangels

20080090685 - Deairing type hydraulic tensioner: In a hydraulic tensioner comprising a tensioner body and a hollow plunger slidable in a plunger-receiving hole, a deairing check ball assembly comprises a check ball, a ball seat, a ball retainer and a check ball biasing spring arranged to bias the check ball away from the seat and toward... Agent: Howson And Howson

20080090686 - Disengageable pulley device: The disengageable pulley device includes a pulley mounted on an inner transmission element, and a freewheel provided with a plurality of lock-up elements mounted between a sliding track of the pulley and a sliding track of the inner transmission element. The device is provided with a cage for the lock-up... Agent: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.

20080090687 - Idler pulley with integral bearing carrier insert and method: An idler pulley with an integral bearing carrier insert comprising: a pulley body having a peripheral surface for accepting and retaining an endless belt; and a tubular bearing carrier insert forming a central hub along a perpendicular axis of the idler pulley body, the hub having an inner circumferential surface... Agent: Joseph V. Tassone, Esq. Dayco Products, LLC

20080085794 - Plate-link chain: A plate-link chain for a belt-driven conical-pulley transmission having a continuously variable transmission ratio and having a large number of link plates pivotally connected with each other via pairs of rocker members that each includes two rocker members. The rocker members extend transversely to the longitudinal direction of the plate-link... Agent: Alfred J Mangels

20080085795 - Continuously variable drivetrain: Drivetrains and frames for vehicles, equipment, machines, etc. Some embodiments of the drivetrains and frames are particularly suited for human powered machines, such as bicycles and exercise equipment. In some embodiments, a drivetrain includes a reciprocating crank coupled to a crank pivot. A lever couples to the crank via a... Agent: Knobbe Martens Olson & Bear LLP

20080085796 - Continuously variable drivetrain: Drivetrains and frames for vehicles, equipment, machines, etc. Some embodiments of the drivetrains and frames are particularly suited for human powered machines, such as bicycles and exercise equipment. In some embodiments, a drivetrain includes a reciprocating crank coupled to a crank pivot. A lever couples to the crank via a... Agent: Knobbe Martens Olson & Bear LLP

20080085797 - Continuously variable drivetrain: Drivetrains and frames for vehicles, equipment, machines, etc. Some embodiments of the drivetrains and frames are particularly suited for human powered machines, such as bicycles and exercise equipment. In some embodiments, a drivetrain includes a reciprocating crank coupled to a crank pivot. A lever couples to the crank via a... Agent: Knobbe Martens Olson & Bear LLP

20080085798 - Continuously variable drivetrain: Drivetrains and frames for vehicles, equipment, machines, etc. Some embodiments of the drivetrains and frames are particularly suited for human powered machines, such as bicycles and exercise equipment. In some embodiments, a drivetrain includes a reciprocating crank coupled to a crank pivot. A lever couples to the crank via a... Agent: Knobbe Martens Olson & Bear LLP

20080085799 - Synchronous belt drive system: A synchronous belt drive system comprising an obround sprocket (10) having a toothed surface and at least one linear portion (16) disposed between two arcuate portions (14,15), the arcuate portions having a constant radius (R1, R2), the linear portion having a predetermined length, a second sprocket (300) having a toothed... Agent: Jeffrey Thurnau The Gates Corporation

20080085800 - Engine starting device: A fixed pulley face of a drive V-pulley of a V-belt type continuously variable transmission includes a belt sliding contact disc having a conical belt sliding contact surface and fixed to a crankshaft so as to be integrally rotated, and a cooling fan fixed to the crankshaft so as to... Agent: Barnes & Thornburg LLP

20080081714 - Power transmission device: A power transmission device for transmitting power of an internal combustion engine of a motorcycle. By improving the arrangement of a continuously variable transmission, a balancer shaft and a drive pulley and a driven pulley of the continuously variable transmission, a lateral width and longitudinal length of a power unit... Agent: Birch Stewart Kolasch & Birch

20080081716 - Bicycle rear derailleur: A bicycle rear derailleur includes a mounting structure with an attachment element, a support element and a locking device. The attachment element is configured and arranged to be attached to a bicycle. The support element is pivotally coupled to the attachment element to move between a first position and a... Agent: GlobalIPCounselors, LLP

20080081715 - Continuously variable drivetrain: Drivetrains and frames for vehicles, equipment, machines, etc. Some embodiments of the drivetrains and frames are particularly suited for human powered machines, such as bicycles and exercise equipment. In some embodiments, a drivetrain includes a reciprocating crank coupled to a crank pivot. A lever couples to the crank via a... Agent: Knobbe Martens Olson & Bear LLP

20080081717 - Compound chain drive guide: A tensioner assembly for a drive system, including a chain, of an internal combustion engine, includes a housing that is fixedly secured to the internal combustion engine. A piston is disposed within the housing. The piston is moveable between retracted and extended positions. The piston generates a force. A pivoting... Agent: Clark Hill, P.C.

20080081718 - Load dependent belt tensioner: A belt tensioner apparatus is provided for a pulley assembly having an input pulley rotatably connected to an output pulley via a flexible belt. The tensioner apparatus includes a belt contact device engaged with a first portion of the belt and also engaged with a second portion of the belt... Agent: Delphi Technologies, Inc.

20080081719 - Roller chain sprocket having an improved symmetric tooth form: A reduced noise and vibration chain drive system includes a sprocket with a plurality of symmetrical teeth and tooth spaces. A chain is engaged with the sprocket and includes rollers received in the tooth spaces. The root surface of each tooth space includes a modified root surface portion defined with... Agent: Fay Sharpe LLP

20080081720 - Bicycle chain connecting link: A bicycle chain connecting link basically has a first link plate, a second link plate, a first link pin and a second link pin. The first link plate has a longitudinal slot. The second link plate has a pair of pin attachment openings. The first and second link pins each... Agent: GlobalIPCounselors, LLP

20080081721 - Flat-belt-like supporting and drive means with tensile carriers: A supporting and drive belt including a belt body or sheathing which encloses tensile carriers. The running surface of the belt can be flat and parallel to the belt back or have trapezium-shaped or semicircular ribs and grooves, wherein the profile of a drive pulley or of a deflecting pulley... Agent: Fraser Clemens Martin & Miller LLC