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| Number | Title | Issue Date |
| 7572200 | Chain drive system A chain drive system includes a drive sprocket, a driven sprocket and a chain looped over the drive sprocket and the driven sprocket. The chain and the sprocket having respective sliding surfaces slidable relative to each other in the presence of lubricating oil, an... | 08/11/2009 |
| 7442139 | Conveyance system In a slat conveyor, slats for supporting conveyed articles and personnel extend between two side-by-side, spaced, endless roller chains engaged with driving sprockets at one end of the conveying path and driven sprockets at the other end. At a location radially outw... | 10/28/2008 |
| 7416500 | Random engagement roller chain sprocket and timing chain system including same A sprocket and a roller chain drive system including same are disclosed. The sprocket is a random engagement sprocket comprising a first plurality of A-profile teeth formed with a first asymmetric profile and a second plurality of B-profile teeth formed with a secon... | 08/26/2008 |
| 7357742 | Plate-link chain Rolling surfaces of rocker pressure members of plate-link chains for conical disk transmissions are constructed as freeform surfaces in such a way that their radius of curvature changes in a direction transverse to the longitudinal extent of the rocker pressure memb... | 04/15/2008 |
| 7270619 | Linear belt actuator a linear actuator capable of transmitting tractive forces as well as thrust forces and operating then as a rigid single-piece rod. The linear actuator has two identical actuating belts (1, 1′) with notches on each of their sides (10, 10′; 11, 11′... | 09/18/2007 |
| 7210573 | Conveyor belt A thermoplastic endless belt (100, 150) has a smooth outer surface (105) substantially free of discontinuities and an inner surface (108) with a plurality of teeth (108) at a given belt pitch (112). The teeth (108) are adapt... | 05/01/2007 |
| 7128673 | Sprocket for chain In a sprocket for a roller chain, the tooth form is such that the distance between the tooth center line and a part of the front tooth surface, at a location on the tooth head side of the pitch line, is greater than the distance between the tooth center line and the... | 10/31/2006 |
| 7083242 | Endless flexible track with reinforcing layers for all-terrain vehicles An endless flexible belt track produced from an elastomer comprises a steel cable (30) spirally wound in the thickness of the belt (12) and outer layers embedded in the thickness of the belt and formed successively from the turns (34) of the cab... | 08/01/2006 |
| 7074147 | Roller chain sprocket with symmetric cushion rings A sprocket includes a hub and a plurality of teeth projecting radially outwardly from the hub. At least one cushion ring is located adjacent the teeth, and the cushion ring defines a plurality of compression pads separated from each other by transverse grooves. Each... | 07/11/2006 |
| 6997096 | Binding cord for motor for electric vehicle A binding cord for a motor for an electric vehicle includes a braided round cord of eight or more strands using a multifilament strand made of synthetic fibers having a melting point or a decomposition temperature at 280° C. or more. The binding cord has oil resist... | 02/14/2006 |
| 6947876 | Method for automated system identification A method for automated system identification of a linear system is disclosed. A model structure is selected and one or more reference signal values are generated for input into the system. Input signal values and output signal values are retrieved from the system an... | 09/20/2005 |
| 6896430 | Compliant belt attach A compliant belt attach assembly for use in a printer includes a belt attach and a drive belt having a drive lug. The belt attach defines a lug chamber for containing the drive lug of the drive belt. First and second drive bars are configured to contact the first an... | 05/24/2005 |
| 6875140 | Engine auxiliary unit driving equipment Engine auxiliary unit driving equipment for transmitting an engine driving force from a crank pulley to a plurality of engine auxiliary units include an alternator and a driven poly-V pulley, provided at least in the alternator, has a plurality of grooves extending ... | 04/05/2005 |
| 6869375 | High output force actuator for an active vibration control system An active vibration control system provides a mass which is movable through a large excursion while minimizing the system size in two of three dimensions to compensate for sensed vibrations. A first rotating member is rotatable about a first axis and a second rotati... | 03/22/2005 |
| 6866603 | Counter-rotational drive belt system and method A belt drive system for use in a positive drive application includes a transmission belt having a row of drive teeth spaced apart along a first side and a non-toothed opposite second side. The system includes a driver pulley, a counter-rotating driven pulley or pull... | 03/15/2005 |
| 6761657 | Roller chain sprocket with added chordal pitch reduction A sprocket is defined to include added chordal pitch reduction when in a new or “as-manufactured” condition. The sprocket chordal pitch Ps′ is purposefully reduced as compared to the as-built chain pitch Pc (or a theoretical maximum sproc... | 07/13/2004 |
| 6736744 | Roller chain sprocket for preventing substantially radial impact with chain rollers A sprocket is disclosed for use with a roller chain and that substantially avoids radial impact of chain rollers with the sprocket. The sprocket differs from prior sprockets in that the tooth root radius of the sprocket is increased while the sprocket pitch circle d... | 05/18/2004 |
| 6695731 | Chain-belt for continuously variable transmission A link chain for use in the continuously variable transmission of the power train in a motor vehicle is assembled of pairs of composite identical or dissimilar links each having a stack of apertured plates, and of coupling units employing pairs of non-cir... | 02/24/2004 |
| 6595603 | Drive sprocket wheel for a track vehicle An undercarriage for a track vehicle includes an endless track having links of constant length connected end to end in the direction of travel, each link having a pair of spaced-apart guide webs and a cog which connects the webs, the cogs being of substan... | 07/22/2003 |
| 6581269 | Ring for laminated type metal belt and method for manufacturing same A ring for a laminated type metal belt includes: an endless metal ring for configuring a belt by laminating a plurality of the rings. In the structure, the ring is chamfered at each of its inner and outer peripheral corner edges; and the radius of curvatu... | 06/24/2003 |
| 6419603 | Device for transmitting a force, in particular a compression force, along a substantially straight path In a device for transmitting a compressive force along essentially a straight path utilizing an articulated transfer element that can bend in one direction. The transfer element has a toothed side and a back side which is turned away from the toothed side... | 07/16/2002 |
| 6387001 | Rollerless chain having sprocket-engaging pins A chain is provided for use with a pair or a series of sprockets which is generally of the roller variety. In one embodiment, inner and outer links are rotatably mounted to spaced apart pins having a large diameter and held in position on the pins by pres... | 05/14/2002 |
| 6325734 | Random engagement roller chain sprocket with staged meshing and flank relief to provide improved noise characteristics A random engagement roller chain sprocket for use primarily in automotive engine chain drive applications which incorporates different asymmetrical tooth profiles for improved noise reduction. In particular, the sprocket includes a first plurality of spro... | 12/04/2001 |
| 6135908 | Enwrapping device An endless flexible torque-transmitting device such as a chain belt in a continuously variable transmission of a motor vehicle has an improved arrangement of the chain links that provides a better distribution of the load between the individual links and ... | 10/24/2000 |
| 6086500 | Toothed belt A toothed belt with improved durability and low noise level during operation having a foundation fabric 2 adhesive-bonded along the engaging surface 5 thereof, wherein the yarns of said foundation fabric 2 extending in the longitudinal direction of the to... | 07/11/2000 |
| 6077181 | Plate for a silent chain having a protruding portion for reducing the noise generated when the plate engages a sprocket A silent chain has a plurality of interconnected plates adapted for operative engagement with toothed surfaces of a sprocket. Each of the plates has flank surface portions and crotch surface portions, with the crotch surface portions having protruding por... | 06/20/2000 |
| 6074317 | Belt for continuously variable transmission with suppressed slip relative to the pulleys A belt for a continuously variable transmission includes a rigid ring. A plurality of adjacent rigid first elements are supported on the ring. Each element has first and second surfaces facing forward and rearward of the element in a direction of rotation... | 06/13/2000 |
| 6018015 | Antistatic belts The invention relates to belts made of thermoplastic polymer (A) and comprising a sufficient amount of a polymer (B) to render them antistatic, the said polymer (B) comprising polyethylene glycol blocks. Use is advantageously made of polymers (A) containi... | 01/25/2000 |
| 6007897 | Fabric and toothed belt using fabric A toothed belt has a plurality of teeth, which are arranged in the longitudinal direction thereof, and cords embedded in a back portion of the toothed belt. A facing fabric is covered over the teeth. The fabric used for the facing fabric is coated with la... | 12/28/1999 |
| 5993345 | Compression fixed ratio chain A power transmission system for transmitting power between a plurality of toothed sprockets mounted on rotating members. The system includes a chain comprising a plurality of transverse elements arranged in an endless loop and maintained in a stack by a p... | 11/30/1999 |
| 5989140 | Both-side meshing type silent chain A both-side meshing type silent chain is provided which not only permits improvement in durability of a tensioner and a chain guide, but also permits a high-speed and smooth transfer of power. The both-side meshing type silent chain has a high durability ... | 11/23/1999 |
| 5921879 | Random engagement roller chain sprocket with staged meshing and flank relief to provide improved noise characteristics A random engagement roller chain sprocket for use primarily in automotive engine chain drive applications which incorporates different asymmetrical tooth profiles for improved noise reduction. In particular, the sprocket includes a first plurality of spro... | 07/13/1999 |
| 5908364 | Chain drive mechanism having noise preventing structure A noise preventing roller chain structure greatly reduces noise generated when a roller chain engages a sprocket or travels on a chain guide. The roller chain has a roller whose axial length is less than the space between opposed inner plates of the chain... | 06/01/1999 |
| 5876297 | Tension member for a power transmission belt having a braiding pitch to diameter ratio within a specific range to increase the flex fatigue resistance of the belt A tension member of a power transmission belt is formed of a braided cord composed of four aramid fiber strands having the same yarn number. The yarn number of the aramid fiber strands is 700 denier to 1300 denier. A ratio p/d of a braiding pitch p of the... | 03/02/1999 |
| 5830983 | Antistatic belts The invention relates to belts made of thermoplastic polymer (A) and comprising a sufficient amount of a polymer (B) to render them antistatic, the said polymer (B) comprising polyethylene glycol blocks. Use is advantageously made of polymers (A) containi... | 11/03/1998 |
| 5766675 | Method for manufacturing flexible disks A method of forming flexible disks containing annular loop packets for the purpose of transmitting traction forces between fastening elements is disclosed. The loop packets and the fastening elements are combined into a ring and subsequently embedded in r... | 06/16/1998 |
| 5690572 | Driving belt A driving belt formed from a textile belt with plastic catch elements injection molded onto the belt. The catch elements have equal spacing from each other in the longitudinal direction of the belt. The belt has several parallel strips, which include non-... | 11/25/1997 |
| 5391627 | Heat-resistant, oil-resistant rubber composition A rubber composition comprising 100 parts by weight of an ethylenically unsaturated nitrile-conjugated diene high-saturation copolymer rubber containing 20 weight % or less of conjugated diene units, and 1-100 parts by weight of an unsaturated carboxylic ... | 02/21/1995 |
| 5211608 | Low noise timing belt Low noise timing belts for use in belt drive systems include either perforations cut into their thin segments or spiral grooves cut into their thick segments in order to allow air pockets to escape in all directions during teeth engagement of belts and pu... | 05/18/1993 |
| 5037360 | Transmission belt A transmission belt including a part formed by a vulcanized product of a rubber composition comprising 100 parts by weight of chloroprene rubber, 1 to 30 parts by weight of zinc powder and 0.5 to 10 parts by weight of 4,4'-(,-dimethylbenzyl)... | 08/06/1991 |
