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Expired Canadian patentCanada

Passenger loading bridge

CA 1107013 A · Owner: Abex Corporation · Inventors: Saunders, Robert L.; Hone, George D.

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 passenger loading bridge includes a ground level rotunda, a tunnel support vertically pivoted thereto, an elevated tunnel horizontally pivoted to the support, a drive assembly horizontally pivoted to the tunnel outer end and rigidly mounting a detachable aircraft engaging cab. Stairs axe located in the tunnel support. The drive assembly swings and elevates the tunnel, while a parallelogram linkage assures that the cab is level at all elevations. The cab is offset 45° to the tunnel axis and has extension and rotation capabilities. The tunnel features a load bearing floor support and walls and a roof of curtain wall construction.

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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 18, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 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.
FiledOctober 25, 1978
GrantedAugust 18, 1981
Term endedAugust 18, 1998
Patent numberCA 1107013 A
Classification (IPC)B64D9/00 +1 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedOct 25, 1978Patent grantedAug 18, 1981Term endedAug 18, 1998

Sources & verification

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