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Expired Canadian patentCanada

Feedback fuel metering control system

CA 1293553 C · Owner: Staerzl, Richard E. · Inventors: Staerzl, Richard E.

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 feedback fuel metering control system is provided for an internal combustion engine and eliminates the need for high pressure fuel injectors a, high pressure fuel pump and a constant fuel pressure regulator. The system senses the amount of combustion air supplied to the engine, senses fuel flow velocity and controls the amount of fuel supplied according to the amount of combustion air and the fuel flow velocity.

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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 December 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 24, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 7, 1988
GrantedDecember 24, 1991
Term endedDecember 24, 2008
Patent numberCA 1293553 C
Classification (IPC)F02M51/02 +2 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedSep 7, 1988Patent grantedDec 24, 1991Term endedDec 24, 2008

Sources & verification

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