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Expired Canadian patentCanada

Quick changing and/or quick gripping device for the molding tools of injection molding machines

CA 1268015 C · Owner: Battenfeld Gmbh · Inventors: Groll, Herbert

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 quick changing and/or quick gripping device for the molding tools of injection molding machines. The two mold halves of each molding tool are alignable in insertion guides between two adapter plates located opposite each other. The adapter plates are movable toward each for closing the molding tool and are movable apart from each other for opening the molding tool. The mold halves can be fixed in their aligned position by means of clamping members. During the changing and/or gripping procedure, the two mold halves of the closed molding tool are fixedly locked or coupled to each other. At least one locking bar is movably mounted in a mold half and automatically engages a locking bar …

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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 24, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 24, 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.
FiledNovember 3, 1987
GrantedApril 24, 1990
Term endedApril 24, 2007
Patent numberCA 1268015 C
Classification (IPC)B29C45/26 +2 more

Timeline

Timeline From CIPO dates

1988199019921994199619982000200220042006Application filedNov 3, 1987Patent grantedApril 24, 1990Term endedApril 24, 2007

Sources & verification

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