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Expired Canadian patentCanada

Double universal joint

CA 1049277 A · Owner: Uni-Cardan A.G. · Inventors: Krude, Werner

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

Abstract of the Disclosure A double universal joint comprises two individual universal joints and a member positioned axially between the individual universal joints is connected to the first members of each joint. A centering plate extends perpendicularly to the axis of rotation of the connecting member and is guided for sliding movement in its own plane. The centering plate is disposed within a casing having guide surfaces for guiding the spherical outer surfaces of the second joint members of the individual universal joints. The centers of curvature of the outer spherical surfaces are offset equal distances from the centers of the respective individual universal joints when the joint is …

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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 February 27, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 27, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedFebruary 27, 1979
Term endedFebruary 27, 1996
Patent numberCA 1049277 A
Classification (IPC)F16D3/16 +1 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedFeb 27, 1979Term endedFeb 27, 1996

Sources & verification

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