Endless belt power transmission systems or components inventions 10/09

20090247334 - Bicycle derailleur: A bicycle derailleur includes a mounting member, at least one linkage member, a movable chain guide and a chain guide tensioning mechanism. The mounting member is configured to be attached to a bicycle frame. The linkage member is supported to the mounting member. The movable member is movably coupled to... Agent: Global Ip Counselors, LLP

20090247336 - Hydraulic auto-tensioner with double seal ring: The present invention relates to a hydraulic auto-tensioner, in particular for a chain drive of an internal combustion engine, comprising a housing, a tensioning plunger guided in a plunger bore of said housing, a free piston guided in said plunger bore, and a plunger rod formed on said tensioning plunger... Agent: Leydig Voit & Mayer, Ltd

20090247335 - Hydraulic tensioner: In a hydraulic tensioner having a hollow plunger that cooperates with a housing to form a high pressure oil chamber, the movable element of the check valve that allows oil to flow into the high pressure oil chamber is a bar-like element that extends into a coiled plunger-biasing spring and... Agent: Howson & Howson LLP

20090247337 - Chain transmission device: In a chain transmission using a hybrid chain having inner and outer links with bushings, or with bushings and rollers, the rollers mesh with a central sprocket, and the link plates have teeth that function as a silent chain, meshing with side sprockets fixed to the central sprocket. The teeth... Agent: Howson & Howson LLP

20090247338 - Pulley wheel: A pulley wheel adapted to a roll seat of a door or a window includes a hollow wheel seat and a bush; the wheel seat being comprised of a first and a second ring seat and defining a ring space between both ring seats; two concentric slotted holes being respectively... Agent: Troxell Law Office Pllc

20090247339 - Link plate for a bicycle chain: A link plate for a bicycle chain comprises a plate having a first end and a second end. The first end includes an installation hole and an elongated opening. The installation hole includes a first aperture and a second aperture connected to the first aperture. A peak portion is defined... Agent: Chien-hui Su

20090247340 - Chain transmission device: In a chain transmission, the link plates of a roller chain or rollerless bushing chain are formed with pairs of teeth. A sprocket has a central set of sprocket teeth for meshing with the rollers or bushings, and sets of side sprocket teeth for meshing with the sprocket. The teeth... Agent: Howson & Howson LLP