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Expired Canadian patentCanada

Cambered pin cvt chain belt

CA 1303875 C · Owner: Cole, Edward Hutchinson Jr. · Inventors: Bateman, Paul Mario; Ivey, John Saxon; Cole, Edward Hutchinson Jr.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A chain-belt (19) for engagement with the pulleys (11,12) of a continuously variable transmission (10) consists of interleaved sets of chain links (21,22) joined for articulation by a joint (28) which has a rocking action. The joint includes a pair of pins (29,31). A small camber (48) is introduced into one or both of the pins (29,31) to create a spring load between the pins and the links to retain the pins in the chain during handling and assembly. Each chain link includes a pair of spaced apertures (23) adjacent the opposite ends; each aperture has a generally hour-glass shape with the enlarged ends (24,25) receiving the pins. Also, each chain link (21 or 22) has a pair of oppositely …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted June 23, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 28, 1988
GrantedJune 23, 1992
Term endedJune 23, 2009
Patent numberCA 1303875 C
Classification (IPC)F16G5/18

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedOct 28, 1988Patent grantedJune 23, 1992Term endedJune 23, 2009

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.