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Expired Canadian patentCanada

Breakstem fastener installation tool

CA 1266632 C · Owner: Avdel Systems Limited · Inventors: Frearson, William Harvey

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 hand-held rivet installation tool is provided with an airflow ejector (23, 26, 28) to eject broken off rivet stems. The tool has a base (71) on which it can stand on a level surface. A valve (73) is provided with its actuating plunger (75) protruding from the base. When the tool is standing on its base the, plunger (75) is pushed in and the valve (73) shuts off the air supply to the ejector. When the tool is picked up again the valve (73) stays in the off position until the tool-actuating trigger (31) is operated again. Thus needless waste of air through the ejector, when the tool is not being used is, eliminated.

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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 March 13, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 13, 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.
FiledMay 7, 1986
GrantedMarch 13, 1990
Term endedMarch 13, 2007
Patent numberCA 1266632 C
Classification (IPC)B21D9/05 +1 more

Timeline

Timeline From CIPO dates

1987199019931996199920022005Application filedMay 7, 1986Patent grantedMarch 13, 1990Term endedMarch 13, 2007

Sources & verification

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