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Expired Canadian patentCanada

Drum brake having pawl and lever

CA 1111359 A · Owner: Bendix Corporation (The) · Inventors: Turak, John L.

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 drum brake includes a backing plate with an anchor for pivotally engaging one end of a pair of brake shoes. A hydraulic actuator is engageable with the other end of the pair of brake shoes and is operable to move the pair of brake shoes from a rest position to a braking position. An extendible strut extends between the pair of brake shoes to limit the retraction of the pair of brake shoes upon termination of a braking application. A lever is pivotally coupled to one of the brake shoes and a pawl is pivotally coupled to the other brake shoe. The pawl and lever are releasably interlocked with their respective brake shoes via hooks which are received in slanted slots or openings. A resilient …

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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 October 27, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 27, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 15, 1979
GrantedOctober 27, 1981
Term endedOctober 27, 1998
Patent numberCA 1111359 A
Classification (IPC)F16D51/52 +2 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedAug 15, 1979Patent grantedOct 27, 1981Term endedOct 27, 1998

Sources & verification

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