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| Number | Title | Issue Date |
| 7427251 | Drive chain for a bicycle A roller chain for bicycles having outer and inner chain links. The outer and inner chain links have outer and inner link plates, respectively. The chain links are joined by tubular pins. The chain links have holes for receiving the tubular pins. The holes have an o... | 09/23/2008 |
| 7195301 | Roll up ramp system A roll up ramp system facilitates transition between a first elevation and a second, higher elevation. The roll up ramp system includes a securement device temporarily connecting a roll up ramp to the second, higher elevation. Further included by the roll up ramp sy... | 03/27/2007 |
| 7192240 | Roll up ramp system A roll up ramp system facilitates transition between a first elevation and a second higher elevation. The roll up ramp system includes a plurality of load-bearing links connected to one another having top and bottom faces and being comprised of at least one load-bea... | 03/20/2007 |
| 7121969 | Roller chain In a roller chain, the outside diameters D of the rollers and the outside diameters d of the pins extending through bushings on which the rollers are disposed satisfy the relationships 0.72P≦D≦0.79P and 0.40P≦d≦0.44P where P is the pitch of the roller chain.... | 10/17/2006 |
| 7056248 | Silent chain A Hybrid Roller/Silent chain that has the wear resistance of a roller chain combined with the noise performance of a silent chain. This is accomplished with the use of bushings that allow increased bearing area for the articulating members of the chain, specifically... | 06/06/2006 |
| 6969332 | Silent chain A silent chain comprises a plurality of link plates, each having a pair of tooth parts and pin holes, stacked in the thickness direction as well as in the length direction and linked together using linking pins. Guide links are provided on the outermost sides of the... | 11/29/2005 |
| 6539700 | Chain belt for continuously variable transmission In a chain belt (1) for a continuously variable cone-pulley transmission of a vehicle, lengthwise links (3a, 3b, 3c) are connected by transverse coupling members (2a, 2b) passing through openings (4) in the links. Retainer elements (7) at the ends of the ... | 04/01/2003 |
| 6394923 | Drive chain A drive chain includes outer and inner chain plates, rollers, and pins. The outer and inner chain plates employ a closed-type pivot engagement therebetween so as to enhance protection against dust, to avoid undesired release of lubricant, and to avoid con... | 05/28/2002 |
| 6364799 | Quick-connection link, for a bicycle chain A quick-connection link for a bicycle chain, comprises a pair of plates, a pair of tubular articulating pins secured to one of the aforementioned plates, and a pair of quick-coupling pegs that are received in tubular pins and are gripped inside them to pr... | 04/02/2002 |
| 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 |
| 5989141 | Silent chain A silent chain can prevent the link plates from rupturing and stretching in the longitudinal direction to the chain. The silent chain is formed such that the thickness of both the outer link plates of the joint link row having fewer plates on the connecti... | 11/23/1999 |
| 5902203 | Silent chain A silent chain is provided in which a plurality of link plates of a certin configuration may have an identification indicator marked on a reference surface thereof at the time connecting pin inserting holes are punched into the link plates in order to ens... | 05/11/1999 |
| 5797820 | Slat band chain and sprocket The present invention provides a slat band chain for both straight and curved lines and a sprocket made of synthetic resin which the chain can engage with every other tooth of the sprocket. At least three reinforcement ribs 24a-24c connecting the front cu... | 08/25/1998 |
| 5711733 | Power transmission chain It is envisaged in the case of a power transmission chain (1) for guiding cables, hoses and the like in a cavity surrounded by the chain links, with several chain straps (2, 3) which can be connected in detachable fashion by upper and lower cross-members,... | 01/27/1998 |
| 5683319 | Chain assemblies with minimal pin projection A chain assembly has pins extending through the guide links with minimal projection beyond the outside edge of the guide links. The minimal pin projection provides a chain assembly of narrow construction. Modular chain systems are also provided that permi... | 11/04/1997 |
| 5551925 | Chain assemblies with minimal pin projection A chain assembly has pins extending through the guide links with minimal projection beyond the outside edge of the guide links. The minimal pin projection provides a chain assembly of narrow construction. Modular chain systems are also provided that permi... | 09/03/1996 |
| 5464374 | Chain having improved load distribution A power transmission chain includes pins and inner link apertures of a size to allow pivotal movement of the inner links about the pins. The ends of the pins and the outer link apertures are shaped such that upper and lower portions of the pin ends bear a... | 11/07/1995 |
| 5288278 | Bicycle chain A bicycle chain having link plates connected to be oscillatable relative to one another within a predetermined range of flexion. To determine the range of flexion, outer link plates include engaged members, and inner link plates include engaging members f... | 02/22/1994 |
| 5140806 | Roller chain A roller chain for bicycles comprises a plurality of outer links each having a pair of outer plates each having two pin holes, two pins extending through the pin holes and connecting the outer plates of each of the outer links with one another, a pluralit... | 08/25/1992 |
| 4978327 | Coupling portion of a chain A chain has pairs of inner sheets and pairs of outer sheets. Each sheet has two rings. An annular flange is formed on each ring. An inner surface of an opposite end to a free edge of each annular flange is rounded so as to form a recess. Each annular flan... | 12/18/1990 |
| 4932927 | High strength, non-metallic transmission chain A link assembly for a lightweight, non-metallic, conveyor or load transmission chain having significantly greater strength and other performance improvements compared to previous non-metallic chain links is disclosed. Each link assembly includes: a pair o... | 06/12/1990 |
| 4464151 | Sealed chain joint A chain link assembly comprising a pair of inner sidebar portions, each of the inner sidebar portions defining an aperture. A tubular-shaped bushing is secured to the pair of inner sidebar portions. The bushing includes a central portion and integral bush... | 08/07/1984 |
| 4437565 | Conveyor chain The invention relates to a conveyor chain intended for use, for example, in wood transporters. In order to be able to securely fasten the sleeves and the trunnions of the chain to their side plates, preferably by welding, projecting edge flanges are forme... | 03/20/1984 |
| 4411131 | Chain link plate A chain link plate including a pair of enlarged end parts joined by an intermediate constricted part. Each end part has an opening therethrough. The link plate is symmetrical about a first axis which extends longitudinally of the link plate and passes thr... | 10/25/1983 |
| 4143512 | Anti-collapsing chain having loop center link A chain has alternately arranged center links and sidebars that are interconnected by pins of a predetermined diameter. An elongated opening is provided in each center link for receiving two pins. Adjacent each end of the elongated opening, lugs project f... | 03/13/1979 |
| 4117738 | Chain for engagement with double sprocket A chain for engagement with a double sprocket has alternate pin links and center, or bushing, links. The bushing links comprise a single center bar with two laterally extending bushings tightly received therein. The pin links have side bars parallel to th... | 10/03/1978 |
| 4080842 | Pivot device A chain link conveyor comprises modules pivotally connected to one another. Each module is designed to be molded as a unit, preferably of an organic plastic material and comprises a number of parallel, spaced links having end sections with aligned holes f... | 03/28/1978 |
| 3955434 | Power transmission chain link construction A power transmission chain having pivotally interconnected links comprises link plates and stop members with stop faces for limiting the pivot angle between successive links, the link plates and the stop members being formed by fixedly interconnected copl... | 05/11/1976 |
