Endless belt power transmission systems or components inventions 03/09

20090082145 - Hand-held power tool with a belt tensioning device: A hand-held power tool for driving a working tool (1) includes a drive belt (3), first and second arms (5a, 5b) longitudinally displaceable relative to each other and carrying respective deflection rollers (6) of the drive belt (3), a belt tensioning device (4) located between the first and second arms... Agent: Abelman, Frayne & Schwab

20090082146 - Tensioning device of a traction mechanism drive: The invention relates to a tensioning device of a traction mechanism drive, having a tensioning lever mounted on a base housing and rotatable by a pivot bearing. A coil spring is arranged coaxially to the pivot bearing. The pivot bearing comprises a bearing journal, a bearing hub and at least... Agent: Lucas & Mercanti, LLP

20090082147 - Multi-speed sprocket assembly: A multi-speed sprocket assembly is provided for engaging a bicycle chain displaceable by a derailleur. The multi-speed sprocket assembly generally includes at least one smaller sprocket and at least one larger sprocket. The larger sprocket includes first and second transitional segments for alternatively receiving a shifting chain segment of the... Agent: Sram Corporation

20090082148 - Transmission with pulleys and a drive belt: A continuously variable transmission is provided with a drive belt (3) and with a primary pulley (1) and a secondary pulley (2), each including two conically shaped pulley sheaves (4,5) placed on a respective pulley shaft (6,7) and between which the drive belt (3) is held at a variable radial... Agent: Young & Thompson

20090082149 - Plate-link chain: A plate-link chain composed of a large number of plates that form plate sets, where adjacent plate sets are hingedly connected to each other by pairs of rocker members. The rocker members of a rocker member pair have rolling surfaces that bear against each other. Some plate sets, preferably every... Agent: Alfred J Mangels

20090075767 - Mobile machine for screeding floor surfaces and the like: A mobile machine for screeding floor surfaces and the like comprises a planet disk, which is rotatably supported and driven by a drive motor, and which carries at least one screeding disk, operatively connected to the drive motor and defining one screeding plane. The operative connection comprises at least one... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090075768 - Tensioner: A tensioner comprising a base, a pivot arm rotationally connected to the base, a pulley journalled to the pivot arm, a torsion spring engaged between the base and the pivot arm for biasing the pivot arm, a first damping member and a second damping member, each engaged with the base... Agent: Jeffrey Thurnau The Gates Corporation

20090075769 - Chain guide for use in engine: Longitudinal grooves having rectangular cross-sections are formed by surface pressing in the front and/or back surfaces of the metal base plate of a chain guide. In the case of a chain guide for a roller chain, the grooves can be positioned so that they are located opposite the parts of... Agent: Howson And Howson

20090075770 - Power transmission belt: It is an object of the present invention to improve the long-term durability of a power transmission belt. There is provided a power transmission belt characterized in that it includes a rubber layer that is formed of a cross-linked rubber composition and extends in a belt lengthwise direction, and core... Agent: The Webb Law Firm, P.C.

20090069131 - Oil pressure control apparatus: In one embodiment, an oil pressure control apparatus includes a belt-driven continuously variable transmission, a lockup clutch provided in a torque converter, a primary regulator valve that regulates a line oil pressure that becomes a source pressure of oil pressure of various parts, and a clamping oil pressure control valve... Agent: Sughrue Mion, PLLC

20090069132 - Adjuster systems for continuous variable transmissions: Rotational position adjuster systems that can increase the performance of CVTs that suffer from either or both transition flexing and a limited duration at which the transmission ratio can be changed by providing proper rotational adjustment.... Agent: Armin S. Tay

20090069133 - Self-energizing brake for a tensioner: A tensioner that includes a blade shoe (106), at least one blade spring (112), a ramp 122), and a brake (132). The blade shoe has a curved chain sliding face, an underside, opposite the chain sliding face, a proximal end pivotally attached to ground and a distal end. The ramp... Agent: Borgwarner Inc. C/o Brown & Michaels, PC

20090069134 - Dual idler structure for an elliptical trainer: A dual idler structure of an elliptical trainer can tighten a transmission belt, without easily causing the belt to be slipped upon rotating clockwise or counterclockwise. By operating an upper and a lower stopping bolt to abut an upper and a lower idler set, resilience to the idler sets by... Agent: Bacon & Thomas, PLLC

20090069135 - Sprocket of bicycle with special designed tooth: A sprocket wheel of a bicycle comprises a large sprocket having a plurality of teeth; a small sprocket having a plurality of teeth; and a chain. For each tooth of the large sprocket and small sprocket, a first lateral side of the tooth has a first edge line at a... Agent: Chien-hui Su

20090069136 - Drive chain and tool device for assembling or disassembling the same: A drive chain includes two end chain components and a connecting plate. Each of the end chain components has a pin hole and a connecting pin. The connecting pin includes a main segment inserted into the pin hole and having a diameter, an anchoring end segment axially spaced apart from... Agent: Gallagher & Lathrop, A Professional Corporation

20090069137 - Transmission chain: Transmission chain with links coupled by rocker assemblies with each two longitudinal pins which roll over each other and of which one cooperates in a force transmitting way with the opposite pulleys of a pair of cone-shaped pulley sheaves, and these pins have a first dimension (b) in the longitudinal... Agent: Duane Morris LLP

20090069138 - Heat-resistant resin belt, manufacturing method thereof and image forming apparatus: wherein “X” (mm) is a length of the belt in a width direction thereof; “L” (mm) is a perimeter of the belt and “g (x)” represents a displacement of an ideal shape of the heat-resistant resin belt, when g (x)=C (a constant), a left side of the formula is set... Agent: Cooper & Dunham, LLP

20090062044 - Belt type continuously variable transmission: A belt type continuously variable transmission that includes a primary pulley; a secondary pulley; a belt where the primary pulley and the secondary pulley are bound; a positioning hydraulic chamber that presses a primary movable sheave to a primary fixed sheave; a supply-side valve that permits working oil to be... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090062045 - Bicycle rear derailleur: A bicycle rear derailleur basically comprises a mounting member, a movable member, a connecting mechanism and a chain guide. The chain guide includes a first plate member, a second plate member, a guide pulley and a tension pulley, with at least one of the first and second plate members including... Agent: GlobalIPCounselors, LLP

20090062046 - Belt tensioner with adjustable slider plate and replaceable pulley: The present invention is directed to a versatile belt tensioner comprising a base plate, a slider plate, a pulley secured a unitary post joined to one end of the slider plate, and manually operable adjustment assembly for moving the slider plate and pulley relative to the base plate, to tension... Agent: Hoffman, Wasson & Gitler, P.C.

20090062047 - Belt installation guides: A belt installation guide is disclosed which accommodates the loading in a belt module of a new belt around drive rollers. The guide is placed opposite the end portions of the rollers, the belt is slipped over the guides and held by the guides until the belt is pushed over... Agent: James J. Ralabate

20090062048 - Belt device and image forming apparatus: A belt member is supported by a plurality of roller members including a first roller member and moves in a predetermined direction of movement. A coupling member is coupled with the first roller member. An abutting member makes contact with the coupling member by changing tilting of a rotational axis... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090062049 - Combined chain ring protector and chain guide: A combined chain guide and chain ring protector for a bicycle for off-road use having a lower bracket sleeve, a chain ring around which a drive chain extends and a chain ring outer radius. The protector includes a mounting bracket secured at the lower bracket sleeve and a guard mounted... Agent: Kremblas, Foster, Phillips & Pollick

20090062050 - Belt transmission device: [Solution] The belt drive system is configured so that when a slip corresponding to the load on the joint 32 equal to or over the predetermined value occurs between the drive belt 20 and the driven pulley 2, the coefficient of friction between the drive belt 20 and the driven... Agent: Roberts Mlotkowski Safran & Cole, P.C. Intellectual Property Department

20090062051 - Silent chain transmission device: In a silent chain, a link plate is formed by punching, followed by simultaneous shearing of the inner surfaces of the pin holes, the inner engagement surfaces of the teeth, the outer engagement surfaces of the teeth, the connecting arc continuous with the inner connecting surfaces, and the back of... Agent: Howson And Howson