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Expired Canadian patentCanada

Arrangement in heating/cooling systems for flow adjustment

CA 1264267 C · Owner: Hansson, Bengt Eric Goran · Inventors: Johansson, Otto Egon Ragnar; Hansson, Bengt Eric Goran

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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 for controlling a heating system or a cooling system by controlling the flow of a pumped heating or cooling medium through a radiator (1) or a battery (6), by means of a fixed throttling valve (5) mounted in a coupling member located near the radiator or battery. The valve (5) is concealed to prevent unauthorized tampering with its setting. The valve (5) includes an outer sleeve (10) of resilient material. Its outer shape corresponds to that of the inner shape of the coupling member. An inner, rigid sleeve (11) is incorporated in the passage of the outer sleeve the, latter thus forming sound silencing suspension. Also the outer sleeve is effective as a seal between the inner …

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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 January 9, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 9, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 2, 1984
GrantedJanuary 9, 1990
Term endedJanuary 9, 2007
Patent numberCA 1264267 C
Classification (IPC)F15D1/00

Timeline

Timeline From CIPO dates

19851988199119941997200020032006Application filedNov 2, 1984Patent grantedJan 9, 1990Term endedJan 9, 2007

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