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Expired Canadian patentCanada

Apparatus and method for quantifying the flow rate of dough

CA 1238527 A · Owner: Rheon Automatic Machinery Co. Ltd. · Inventors: Hayashi, Torahiko

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 apparatus and method for quantifying the flow rate of dough by controlling the speed of a feed conveyor when the dough is transferred from the feed conveyor onto a constant-speed conveyor. Dough is weighed and the movement of the feed conveyor is controlled at a speed inversely proportional to the weighed measurements, whereby the dough is stretched or compressed cooperatively with two pressing means to make constant the weight of dough per unit length.

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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 June 28, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 28, 2005.
  • 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 3, 1985
GrantedJune 28, 1988
Term endedJune 28, 2005
Patent numberCA 1238527 A
Classification (IPC)A21C9/00 +2 more

Timeline

Timeline From CIPO dates

1986198819901992199419961998200020022004Application filedApril 3, 1985Patent grantedJune 28, 1988Term endedJune 28, 2005

Sources & verification

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