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Expired Canadian patentCanada

Cam-actuated brake

CA 1293696 C · Owner: Carr, Clyde E. · Inventors: Johannesen, Donald D.; Carr, Clyde E.

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

The cam-actuated brake of the present invention comprises a multiple-piece support plate (14 32) secured, together by anchor pins (24) each anchor pin (24) extend-, ing through an associated enlarged opening (38) in an end of a brake shoe (10, 12) and having a shoulder (37) disposed axially adjacent a groove (35) in the pin. Reinforcement plates (50) shaped complementary with the ends of the brake shoes (10, 12) are welded thereto in order to substantially increase the contact area at the end (39) of each brake shoe (10, 12) engaged by the cam end (43) the, head or end (43) of the cam actuator being substantially diamond shaped. An anchor brace (70) has through openings (72) receiving the …

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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 December 31, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 31, 2008.
  • 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 22, 1986
GrantedDecember 31, 1991
Term endedDecember 31, 2008
Patent numberCA 1293696 C
Classification (IPC)F16D51/50 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedOct 22, 1986Patent grantedDec 31, 1991Term endedDec 31, 2008

Sources & verification

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