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Expired Canadian patentCanada

Concealed thermostatic valve control

CA 1063992 A · Owner: Braukmann Armaturen Ag · Inventors: Braukmann, Heinz W.

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

A thermostatic control valve for regulating the supply of fluid through a conduit including in combination a valve plate and seal in the conduit, the valve plate having a valve stem extending outwards of the conduit with a valve stem having a spring exterior of the conduit to move the valve stem and plate away from the seal and a housing secured to the conduit with a retractable plunger in the housing operative on the valve stem. The plunger is contained in a casing with means in the casing responsive to change in ambient temperature moving the plunger against the valve stem towards the seat. An interior member is threaded in the housing and removable means are provided for attachment to …

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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 October 9, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 9, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedOctober 9, 1979
Term endedOctober 9, 1996
Patent numberCA 1063992 A
Classification (IPC)F16K35/06 +1 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedOct 9, 1979Term endedOct 9, 1996

Sources & verification

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