Endless belt power transmission systems or components inventions 11/08

20080293526 - Hydraulic tensioner with a band type check valve: A hydraulic tensioner is described. The hydraulic tensioner hasincludes an inlet portion which defines a pressurized fluid inlet. The hydraulic tensioner also hasincludes a housing defining a chamber which is coupled to the inlet portion. A band check valve separates the pressurized fluid inlet from the chamber, and a piston... Agent: Borgwarner Inc. C/o Brown & Michaels, PC

20080293527 - Vehicle belt drive torsion bar tensioner with an improved damping device: A tensioner (1; 50; 60) for a vehicle belt drive, having a housing (2) defining a cavity (3) having an axis (A); at least one arm (4) fitted to the housing (2) to rotate about the axis (A); an idle pulley (5) fitted to the arm (4); a torsion bar... Agent: Blakely Sokoloff Taylor & Zafman LLP

20080293528 - Independently rotating bash guard: In cycling activities, riders often encounter rough terrain having various obstacles such as rocks, mounds, tree roots, and branches. These obstacles subject the bicycle's crankset and chain to extremes in stress, loading, and impact. An improved bash guard may be attached to the bicycle to protect against damage. The bash... Agent: Floris Chad Copier

20080293529 - Belt drive with a friction wheel: Belt drive comprising a crankshaft pulley, an accessory pulley, a transmission belt wound on the crankshaft pulley, an accessory pulley, a water pump friction pulley and a friction wheel having a friction surface co-operating with the friction pulley and a back of the transmission belt at a section of the... Agent: Mitchell P. Brook Luce, Forward, Hamilton & Scripps LLP

20080293530 - Oil pump driving mechanism: When an engaging pawl 23b is fitted into a recessed portion 34b of a first sprocket 34, which is linked by a chain 33 to a second sprocket 32 that drives an oil pump 3 disposed at a radial detached from a torque converter 2, frictional resistance between a side... Agent: Foley And Lardner LLP Suite 500

20080293531 - Chain noise damping device: A sprocket (S) for a chain driven power transmission system used on an internal combustion engine. Severe ITVH (Noise, Vibration, Harshness) characteristics associated with a chain engaging the sprocket is damped by two annular rings (R1, R2) that are loosely positioned on either side of the circumferential row of teeth.... Agent: Borgwarner Inc. C/o Brown & Michaels, PC

20080287232 - Hydraulic tensioning system: A hydraulic tensioning system (10) for an endless drive (1) of an internal combustion engine (2). In an operating mode, the piston (9) of the tensioning system (10), which is supplied with a hydraulic fluid, is supported against a tensioning rail (6) with a non-positive fit, with the rail pre-tensioning... Agent: Volpe And Koenig, P.C.

20080287233 - Tightener for a belt drive operating in the presence of oil: A tightener (1) cooperating with a belt in the presence of oil, and having a pin (2) having a first axis (A); a base plate (15) integral with and substantially perpendicular to the pin (2); a cam arm (3) connected in rotary manner to the pin (2) and movable with... Agent: Sheridan Ross PC

20080287234 - Belt drive: A belt drive (1) including a belt drive element (4) such as a belt or a chain and a plurality of wheels (1, 6, 7, 8) seated on shafts and integrated into the drive, around which the belt drive element is wound. Parasitic oscillations are introduced into the belt drive... Agent: Volpe And Koenig, P.C.

20080287235 - Power transmitting chain and power transmitting apparatus: Taper portions diameters of which are increased in outer directions in longitudinal directions of a pin and an interpiece are formed at inner peripheral faces of a pin fixing portion and an interpiece fixing portion of links at least on outermost sides in the links arranged in a width direction... Agent: Mcginn Intellectual Property Law Group, PLLC

20080287236 - Pulley: A pulley in which screw holes can have a sufficient axial-direction length without thickening a projecting part. The pulley comprises a pulley main body (10) and flat members (20) fixed thereto, the flat members (20) having screw holes (20c) formed therein. Consequently, there is no need of forming screw holes... Agent: Baker Botts LLP C/o Intellectual Property Department

20080287237 - Oil-free chain: In an oil-free roller chain, the inner faces of the outer link plates have recesses that receive the ends of bushings, and the inner faces of the inner link plates have recesses that receive the ends of rollers surrounding the bushings. Each such recess is formed by punching, so that... Agent: Howson And Howson

20080287238 - Transmitting multi-row chain: A transmitting multi-row chain having easy disassembling or assembling such as dismounting or mounting a chain on its sprockets and, when even high load chain tension is applied, the high load is dispersed to each inner plate so that the load balance in the chain width direction is improved. A... Agent: Dann, Dorfman, Herrell & Skillman

20080287239 - Chain for a chain transmission: The invention concerns a chain for a chain transmission with chain links coupled by a parellel chain pins, each chain link having at least one link plate, the chain pins forming pivot axes for the link plates at a pitch distance whereby a chain link axis perpendicularly intersects the two... Agent: St. Onge Steward Johnston & Reens, LLC

20080280709 - Power transmission device: An object of the present invention is to provide a power transmission device in which the cushioning effect due to a cushioning member can be maintained for a long period of time, and the process for assembling the cushioning member can be simplified. In the power transmission device in accordance... Agent: Baker Botts LLP C/o Intellectual Property Department

20080280710 - Guiding unit for a traction mechanism drive: The invention relates to a guide unit (1a) associated with a traction drive means, which guide unit (1a) comprises a tensioning element (3a) and a guide element (4a). The components: the tensioning element (3a) and guide element (4a), which are displaceable separately from one another with respect to a housing... Agent: Lucas & Mercanti, LLP

20080280711 - Chain tensioner: 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 pressure chamber 16 formed in the cylinder chamber behind the plunger 13.... Agent: Wenderoth, Lind & Ponack, L.L.P.

20080280712 - Chain tensioner: A chain tensioner includes a housing defining a cylinder chamber. A plunger is mounted in the cylinder chamber so as to be slidable along an inner surface of the cylinder chamber. A return spring is mounted in the cylinder chamber to bias the plunger outwardly. The housing is formed with... Agent: Wenderoth, Lind & Ponack, L.L.P.

20080280713 - Belt tensioner: The aim of the invention is to improve a belt tensioner for a belt drive of an internal combustion engine, having a central bearing device which serves to define a pivot axis for the belt tensioning arm, and having a bearing sleeve which is connected to the tensioning arm, wherein... Agent: Magna International, Inc.

20080280714 - Belt pulley for the output shaft of a gear, gear, electric motor, and output shaft: The invention relates to a belt pulley for the output shaft of a gear being driven by an electric motor, with a support for a drive belt at the outer periphery and a receptacle for an axle in the centre, where the receptacle for the axle involves a first region,... Agent: Sughrue Mion, PLLC

20080280715 - Coating liquid for covering glass fiber and rubber-reinforcing glass fiber using same: There is disclosed a glass-fiber coating liquid for forming a coating layer on a glass fiber cord, prepared in the form of an emulsion by dispersing a phenol resin, a vinylpyridine-stylene-butadiene copolymer (B) and a chlorosulfonated polyethylene (C) into water to form a coating layer on a glass fiber cord,... Agent: Crowell & Moring LLP Intellectual Property Group

20080280716 - Chain for use in automobile engine: In a roller chain or a rollerless bushing chain, the surfaces of the pins of the chain are covered with a chromium carbide layer or a vanadium carbide layer, the bushings are formed by cold forging, and the surface roughness of the pins is smaller than the surface roughness of... Agent: Howson And Howson

20080280717 - Chain link for a power transmission chain, and power transmission chain having an expanded useful cross section: The invention relates to a chain link of a power transmission unit for guiding cables, tubes, or similar. Said chain link comprises two side plates (1, 2) which are interconnected by means of at least one transversal web (3, 4). Each side plate (1, 2) is provided with one respective... Agent: Jeffry W. Smith Smith Law Office

20080274845 - Front derailleur for a bicycle: A derailleur including an articulated quadrilateral mechanism, having four parallel articulation axes is provided. At a first articulation axis, between a fixed member and a first connecting rod, the fixed member includes a first forked structure embracing the first connecting rod. The first forked structure includes two opposite flanges having... Agent: Volpe And Koenig, P.C.

20080274847 - Belt tensioning device: A belt tensioning device for a continuous belt drive. The device includes a torsion spring assembly (20) with a longitudinal axis (A2) and with at least one torsion bar or torsion tube (32). The torsion spring assembly (20) can be clamped axially and in a rotationally fixed way into a... Agent: Dickinson Wright PLLC

20080274846 - Thin autotensioner: An autotensioner comprises a torsion coil spring interposed between a base and a rocking arm, and a tubular bushing provided between an inside surface of the base and an outside surface of the rocking arm. The torsion coil spring pushes and biases the rocking arm toward the bushing, and brings... Agent: Greenblum & Bernstein, P.L.C

20080274848 - Drive belt for a transmission with convex pulley sheaves: A drive belt for continuously variable transmission for motor vehicles is provided with two pulleys, each including two substantially conical pulley sheaves, between which the drive belt can be held at a variable radial position, which drive belt is provided with transverse elements (32), which on both lateral sides are... Agent: Young & Thompson