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Expired Canadian patentCanada

Apparatus for generating compressed gas

CA 1293864 C · Owner: Mandrin, Charles · Inventors: Mandrin, Charles

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The apparatus for generating compressed gas includes a pair of gas generators disposed in series and in alternating relation with water-cooled coolers. Water from at least one cooler is injected into the gas flow path within at least one of the gas generators. A steam circuit may also be provided wherein a steam generator is disposed between a gas generator and a water cooler with the steam turbine of the circuit driving a terminal compressor for compressing the gas to a final pressure and temperature. The steam circuit may also include an evaporator which is connected in heat exchange relation with a flow of gas between a combustion chamber and a turbine of at least one of the gas …

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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 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 7, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 18, 1987
GrantedJanuary 7, 1992
Term endedJanuary 7, 2009
Patent numberCA 1293864 C
Classification (IPC)F02C6/04 +1 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedFeb 18, 1987Patent grantedJan 7, 1992Term endedJan 7, 2009

Sources & verification

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