Endless belt power transmission systems or components inventions 01/09

20090029813 - Pressure relief valve for a hydraulic system: A pressure relief valve for a hydraulic system for controlling a belt-driven conical-pulley transmission. The valve includes an orifice having an opening to admit a stream of a hydraulic medium, and a valve cone to block the opening in the orifice. A spring is carried by the valve cone to... Agent: Alfred J Mangels

20090029814 - Clamping or guiding rail for a traction mechanism, especially a chain drive: A tensioning or guiding rail for a traction mechanism, especially a chain drive, is provided, and includes a carrier body and a slide path lining arranged on the carrier body. The carrier body (2) is a standardized component having at least one standardized attachment section (8) for the slide path... Agent: Volpe And Koenig, P.c.

20090029815 - Device for transporting chains: A device is described for transport of chain lengths of varying link sizes, where the device comprises at least a first side plate for fastening on a shaft, and at least four catching arms arranged on the first side plate in a radial pattern, where each catching arm is arranged... Agent: Carella Byrne Bain

20090029816 - Conveyor belt: A conveyor belt comprising a plurality of successive belt elements (2), each belt element (2) comprising at least one transverse rod (4) and two opposing side members (3) connected to each other by the at least one transverse rod (4), and a link (6) forming a joint intermediate the lateral... Agent: Christensen, O'connor, Johnson, Kindness, Pllc

20090029817 - Power transmission chain and power transmission apparatus: A power transmission chain (1) has long metal links (2) and connection members (200) including first and second pins (3, 4). The longitudinal direction of the long links (2) is along the travel direction (X1) of the chain. The longitudinal direction of the first and second pins (3, 4) is... Agent: Rabin & Berdo, Pc

20090029818 - Flat transmission belt: There is provided a flat transmission belt that suppresses occurrence of cracks in the belt surfaces to extend the life of cover rubber layers and hence the life of the belt as a whole. A flat transmission belt of the present invention has a first cover rubber layer and a... Agent: The Webb Law Firm, P.c.

20090023526 - Pneumatic base for facilitating the installation and tensioning of a drive belt: A belt tensioner comprises a belt trained on a drive pulley driven by a drive unit mounted on a base supported on an air-spring bellows linearly extendable under fluid pressure from a collapsed position to an extended position to cause joint movement of the base, the drive unit and the... Agent: Ogilvy Renault LLP

20090023527 - Reciprocating belt drive: A belt drive configured to cooperate with a drive mechanism is disclosed. The belt drive includes a drive belt pulley reciprocally coupled to the drive mechanism such that the drive mechanism reciprocally translates between a power stroke and a return stroke, a driven pulley reciprocally coupled to the drive belt... Agent: Brinks Hofer Gilson & Lione

20090023528 - Motorcycle chain guide and tensioner: A chain guide and tensioner for guiding and applying tension to a chain may include a first tensioner arm, a second tensioner arm being positioned in a spaced relationship with respect to the first arm member, a shaft member for connection to the first arm member, and a roller member... Agent: Wilson Daniel Swayze, Jr.

20090017949 - Chain tensioner: A chain tensioner includes a plunger axially slidably inserted in the cylinder for pressing a chain. The plunger defines in the cylinder a pressure chamber filled with hydraulic oil. The volume of the pressure chamber is variable with the axial movement of the plunger. The pressure chamber communicates with the... Agent: Wenderoth, Lind & Ponack, L.L.P.

20090017950 - Flexibile bicycle chain: A flexible bicycle chain comprises a plurality of chain unit, each chain unit including: two inner chain plates; each inner chain plate having a shape like an “8”, two outer chain plates; each outer chain plate having a shape like an “8”, a size of each outer hole of the... Agent: Montanari Sandro

20090017951 - Transmission chain for use in engine: The plates of transmission chain for an engine are formed with a guide-contacting configuration composed of spaced flat surfaces that come into sliding contact with a flat chain guide, and convex surfaces, continuous with and between the flat surfaces, for sliding contact with a convex chain guide. The convex surfaces... Agent: Howson And Howson

20090011880 - Auto-tensioner: An auto-tensioner includes a plunger slidably inserted in a cylinder and having a closed front end protruding from the cylinder and an open rear end which is located in the cylinder. The plunger is formed with an internal thread on its inner periphery. A screw rod having an external thread... Agent: Wenderoth, Lind & Ponack, L.L.P.

20090011879 - Bracket for chain tensioner or chain guide: To reduce the bending stress acting on a bracket in a chain tensioner or chain guide when a chain is traveling, a bracket of a chain tensioner is provided with a laterally symmetrical transverse-sectional shape by bending one thin sheet of sheet metal having a thickness of preferably no more... Agent: Borgwarner Inc. C/o Brown & Michaels, PC

20090011881 - Tensioner with reinstallation feature: A tensioner enables easy and reliable reinstallation of the tensioner and belt in the field service while simultaneously making it possible to utilize a one-way clutch device to ensure continuous belt tension control without cumbersome manual alignment and/or realignment procedures. The tensioner has a pivot shaft configured for mounting on... Agent: Magna International, Inc.

20090011882 - Belt unit and image forming apparatus: At least one of a plurality of rollers supporting an endless belt includes a flange arranged on an end portion of the roller. The flange includes a cylindrical portion that is inserted into an opening portion of the roller at its end. Outer circumference of the cylindrical portion makes contact... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090011883 - Power transmission belt: A power transmission belt comprising a polyester tensile cord having a heat shrinkage at 100° C. of less than 1% and/or a heat shrinkage at 150° C. of less than about 1.5% and/or a dimensional stability index of less than about 6%. The belt has a heat shrinkage after 24... Agent: The Gates Corporation

20090011884 - Transmission belt: The invention provides a transmission belt that can suppress lowering in transmission efficiency and has improved durability. A rubber layer adhered to core wires is formed to have a durometer hardness (shore A) of not less than 72 and not more than 85, or have a tensile stress of not... Agent: The Webb Law Firm, P.C.

20090011885 - Rotary regenerative heat exchange wheel assembly with improved flexible drive belt link for easy assembly and disassembly: A rotary regenerative heat exchange wheel assembly of the type including a rotary wheel constructed to rotate about an axis, and driven with a belt drive, the assembly comprising: a flexible belt of a predetermined cross section, including an elongated strip terminating at two ends, each end being formed with... Agent: Mcdermott Will & Emery LLP

20090005200 - Mechanical function control of continuously variable transmission hydraulic system: A simplified continuously variable transmission system control provides a variable clamping force and a differential cylinder pressure manipulation to change sheave ratios. The system control uses two pumps. The first pump provides the variable clamping force. The second pump provides pressure changes to effect ratio changes. The clamping force can... Agent: Knobbe Martens Olson & Bear LLP

20090005201 - Pulley assembly for a power transmission belt: A pulley assembly has a first body to engage a power transmission belt. The first body is rotatable around a first axis. A second body is movable relative to the first body around the first axis. First and second axially spaced elastic members each has a radially inner portion and... Agent: Wood, Phillips, Katz, Clark & Mortimer

20090005202 - Belt tensioner and method for making a belt-tensioner arm and a spring case: A belt tensioner includes an arm, a spring case, and a helical spring having inwardly projecting first and second end portions. Another belt tensioner includes a spring, an arm, a spring case, and a pivot bushing surrounding the spring. An additional belt tensioner includes an idler pulley having a bearing... Agent: Joseph V. Tassone, Esq. Dayco Products, LLC

20090005203 - Belt tensioner for coupon insertion apparatus: A coupon insertion apparatus configured for sequentially inserting coupons into receiving containers, including a machine frame, at least one pair of opposed rollers mounted to the frame and adjustable between a closed position and an open position. A drive system includes a drive belt for simultaneously driving the opposed rollers... Agent: Greer, Burns & Crain

20090005204 - Mechanical speed reducer by belt: The present invention refers to a mechanism for mechanical speed reducer or overdrive in which for each reducing stage there are two pulleys or sprockets disposed laterally and in parallel position between themselves, moreover one of them in orbital motion provided by a eccentric cam reciprocal to the reducer input... Agent: Valmor Da Cunha Gravio