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Expired Canadian patentCanada

Pillow block

CA 1074841 A · Owner: Brown And Sharpe Manufacturing Company · Inventors: Headen, William 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

This invention provides a pillow block assembly which allows the use of a plurality of self-aligning linear motion bearing units that can be fitted into a central opening. The invention is useful when it is necessary to have a long bearing unit and by the provision of a single pillow block with a base and auxiliary flangeless blocks with central openings which can fasten to the end faces of the block having the base. There is provided an arrangement which can be easily aligned particularly when the flangeless block has enlarged fastening bores through which bolts may pass. The bolts may be loosely fastened to the block with the base and tightened up with a shaft in place within the bearing …

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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 April 1, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 1, 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.
Filed—
GrantedApril 1, 1980
Term endedApril 1, 1997
Patent numberCA 1074841 A
Classification (IPC)F16C29/04 +2 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedApril 1, 1980Term endedApril 1, 1997

Sources & verification

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