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Expired Canadian patentCanada

Torque tube and method for mounting and maintaining power transmitting forces

CA 1084284 A · Owner: Mccusker, James D. · Inventors: Mccusker, James D.

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

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Abstract From the Canadian patent

Torque Tube and Method for Mounting, and Maintaining Power Transmitting Forces Abstract of the Disclosure, This invention provides a torque tube or coupling housing which is adapted to join a power transmitting member to a power driven member. A rectangular or square metal tube provides this torque tube which has two parallel spaced-apart, outer surfaces. In these spaced-apart surfaces and preferably near their central portions are formed aligned pilot holes. Using these pilot holes as an axis appropriate mounting holes are formed in each of the planar surfaces. The torque tube is then bolted in place to provide a fixed coupling of the power members. As a method, this torque tube provides …

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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 August 26, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 26, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 14, 1977
GrantedAugust 26, 1980
Term endedAugust 26, 1997
Patent numberCA 1084284 A
Classification (IPC)F16D1/02 +2 more

Timeline

Timeline From CIPO dates

1978198019821984198619881990199219941996Application filedDec 14, 1977Patent grantedAug 26, 1980Term endedAug 26, 1997

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