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Expired Canadian patentCanada

Centrifugal couplings

CA 1265076 C · Owner: Wallace, Neil M. · Inventors: Wallace, Neil M.; Harrington, John P.

CIPO record

Overview

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

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Abstract From the Canadian patent

Improvements in Centrifugal Couplings. A coupling (10) has input (16) and output (18) members interconnected by two-link (2,3) coupling elements (A,B,C) which are flexible in the plane of rotation by centrifugal force acting on them as the coupling (10) rotates and by the torque transmitted. The coupling is soft over a range of speeds and torques. The input member (16) is constructed from two metal spinnings (28,30) welded together to form a housing which supports the pivot (X) of each coupling element at both ends. Thus the input member is much lighter. The output member (18) is similarly constructed with bushes (47a,b) welded on to support the pivot (Y) also at both ends. The output …

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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 January 30, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 30, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 3, 1986
GrantedJanuary 30, 1990
Term endedJanuary 30, 2007
Patent numberCA 1265076 C
Classification (IPC)F16D3/60 +1 more

Timeline

Timeline From CIPO dates

1987199019931996199920022005Application filedFeb 3, 1986Patent grantedJan 30, 1990Term endedJan 30, 2007

Sources & verification

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