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Expired Canadian patentCanada

Volume batcher for fluent materials, particularly suitable for high speed packaging machines of filter- bags for infusion products such as tea, camomile and similar

CA 1163549 A · Owner: I.M.A. - Industria Macchine Automatiche - S.P.A. · Inventors: Romagnoli, Andrea

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

Volume batcher for fluent materials particularly sui-, table for high speed packaging machines of filter-bags for infusion products such as tea, camomile and similar which comprises a cylindrical drum provided with radial pockets rotating about an horizontal axis below a feed hopper of the product to make up. A filter paper strip is made adherent advance with the cylindrical surface of the drum closing said pockets from the top dead centre to the bottom dead centre from where it horizontally continues with the quantities of product on it to a packaging station. Said pockets have a volume variable structure by means of a cylinder shaped inside hollow piston member in communication with …

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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, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 13, 2001.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 9, 1981
GrantedMarch 13, 1984
Term endedMarch 13, 2001
Patent numberCA 1163549 A
Classification (IPC)B65B47/00 +2 more

Timeline

Timeline From CIPO dates

1982198419861988199019921994199619982000Application filedApril 9, 1981Patent grantedMarch 13, 1984Term endedMarch 13, 2001

Sources & verification

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