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Expired Canadian patentCanada

Drop hammer frame weldment and assembly

CA 1085193 A · Owner: Amca International Corporation · Inventors: Geuss, Joseph A.

CIPO record

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

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Abstract From the Canadian patent

An improved upright frame element for fluid operated drop hammers which are fabricated from low carbon steel plates, slabs and forgings welded together and forming a massive, integrated weldment of multiple boxlike fabrications having strong horizontal internal and external reinforcing structures welded to the essential upstanding parts of the frame and lending strength against the several forces and components in torsion, bending, shear and against vibration to which drop hammer frames are subjected violently in normal use. All the upstanding end members and side plates are welded to and integrated with a firm horizontal base member at their lower ends and to and with a heavy horizontal …

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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 September 9, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 9, 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.
FiledMay 24, 1978
GrantedSeptember 9, 1980
Term endedSeptember 9, 1997
Patent numberCA 1085193 A
Classification (IPC)B21J7/06

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedMay 24, 1978Patent grantedSep 9, 1980Term endedSep 9, 1997

Sources & verification

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