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Expired Canadian patentCanada

Gas feed system for a gas fired diesel engine

CA 1302188 C · Owner: Nakagawa, Hiroshi · Inventors: Asai, Koetsu; Nakagawa, Hiroshi; Tateishi, Mataji

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

An improved gas feed system for a gas fired diesel engine is disclosed, in which a boil-off gas evaporated from a liquefied gas is fed to the diesel engine. The improvements reside in that between the diesel engine and a liquefied gas tank for storing a gaseous fuel is provided a liquefied gas adding apparatus for adding the liquefied gas into the boil-off gas, and that a passageway of a high-pressure gas pressurized by a high-pressure compressing apparatus which compresses the boil-off gas or a mixture of the boil-off gas and the liquefied gas and a passageway of a low-pressure gas pressurized by a lowpressure compressing apparatus are respectively provided in the gas feed system.

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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 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 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.
FiledJune 2, 1988
GrantedJune 2, 1992
Term endedJune 2, 2009
Patent numberCA 1302188 C
Classification (IPC)F02M21/00 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedJune 2, 1988Patent grantedJune 2, 1992Term endedJune 2, 2009

Sources & verification

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