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Expired Canadian patentCanada

Device for counting objects

CA 1319132 C · Owner: Hausmann, Peter · Inventors: Hausmann, Peter

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

Abstract of the Disclosure A ring-jet sensor (24) which is operated with air and is connected to an air-carrying line (23) is directed at the objects (27). The ring-jet sensor (24) is also coupled to a pressure sensor (37), the signal of which passes to a counter (40). In order to avoid connecting two lines to the ringjet sensor (24), the said ring-jet sensor and also the pressure sensor (37), are each connected in, parallel, to one branch line (23, 35). The branch lines (23, 35) can carry either compressed air or suction air.

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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 15, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 15, 2010.
  • 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 20, 1989
GrantedJune 15, 1993
Term endedJune 15, 2010
Patent numberCA 1319132 C
Classification (IPC)A24C5/32 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedJune 20, 1989Patent grantedJune 15, 1993Term endedJune 15, 2010

Sources & verification

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