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Expired Canadian patentCanada

Apparatus for the application of a gasket inside closures comprisinga cup, such as screw-on and crown caps

CA 1311337 C · Owner: Alieri, Rodiero · Inventors: Thomason, Paul L.; Alieri, Rodiero

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

The aparatus comprises a plastic material batching carousel carrying a plurality of shuttles and elements, which take and leave batches of plastic material therein supplied by an extruder . A first star wheel transfers shuttles having batches placed therein towards a forming carousel where the batches of plastic material are pressed to form round gaskets. A second star wheel is adapted to transfer shuttles with the molded gaskets towards a further carousel where, elements are provided to extract the round gaskets from the shuttles and to introduce them into cups. At the bottom of the inserting carousel a star wheel for moving away completed closures and a star wheel for transferring the …

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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 December 15, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 15, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 23, 1986
GrantedDecember 15, 1992
Term endedDecember 15, 2009
Patent numberCA 1311337 C
Classification (IPC)B29C65/02 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedJune 23, 1986Patent grantedDec 15, 1992Term endedDec 15, 2009

Sources & verification

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