Patent Yard Sign in
Expired Canadian patentCanada

Method for the recovery of power from lhv gas

CA 1113380 A · Owner: Gulf Research & Development Company · Inventors: Rennard, Raymond J.; Viswanathan, Thiagarajan; Morris, Richard A.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

Abstract of the Disclosure, A method is disclosed for the utilization of energy in gas of low heating value discharged from a production well of an in-situ combustion process for the production of oil. The low heating value gas is mixed with an amount of air that will provide oxygen in an amount that will limit the maximum temperature rise in a catalytic combustion chamber to avoid excessive temperatures regardless of changes in composition of the low heating value gas. The mixture is preheated and delivered into the catalytic combustion chamber at a temperature exceeding about 400° F. that will cause ignition of the combustibles on contact with the catalyst. In a preferred embodiment, …

Read the whole patent

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 December 1, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 1, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 18, 1979
GrantedDecember 1, 1981
Term endedDecember 1, 1998
Patent numberCA 1113380 A
Classification (IPC)E21B43/24 +1 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedJuly 18, 1979Patent grantedDec 1, 1981Term endedDec 1, 1998

Sources & verification

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