The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 1997
Filed:
Aug. 30, 1995
Tetsuji Kotera, Nabari, JP;
Borg-Warner Automotive, K.K., Nabari, JP;
Abstract
A power transmission chain reduces the chordal motion, or up/down motion, of the chain, which permits a reduction in the noise of the chain. In the chain, the inside flank and outside flank of the link teeth are formed to satisfy P.sub.2 .gtoreq.P.sub.1 .gtoreq.P.sub.3 and R.gtoreq.2.times.P, when P.sub.1 is the pitch between the outside flanks on the mesh pitch line of link plates 2, P.sub.2 is the pitch between the inside flanks of two other adjacent link plates that engage with teeth of the links when the chain is stretched nearly straight, and P.sub.3 is the pitch between the inside flanks when the chain is wrapped around the sprocket. R is the radius of curvature of the inside flank and P is the chain pitch.