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Expired Canadian patentCanada

Apparatus for cutting and metering slabs or bales of unvulcanised rubber

CA 1111871 A · Owner: F.A.T.A. European Group S.P.A. · Inventors: Di Rosa, Gaetano

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

Apparatus is provided for cutting and metering slabs or bales of unvulcanised rubber to be fed to a single rubber mixing machine. The apparatus includes a conveyor belt and a carriage arranged to transport bales of rubber along parallel paths. A cutting machine is positioned to cut a slice off a bale carried by said carriage. By arranging for the carriage to undergo back and forth movement while intermittently effecting transverse feed of the bale, the cutting machine cuts a succession of slices off the one bale. To make up a load of rubber of a required weight, whole bales are transferred to a hopper via the conveyor belt until a weighing machine indicates that the required weight has …

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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 November 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 3, 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.
FiledJuly 31, 1979
GrantedNovember 3, 1981
Term endedNovember 3, 1998
Patent numberCA 1111871 A
Classification (IPC)G01G13/00 +2 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedJuly 31, 1979Patent grantedNov 3, 1981Term endedNov 3, 1998

Sources & verification

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