Gaseous fuel injection system for internal combustion engines
CA 1329899 C · Owner: Garretson Equipment Co. Inc. · Inventors: Garretson, Keith H.; Garretson, Owen L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A gaseous fuel injection system for internal combustion engines features a "variable-pressure-controller" which translates a varying negative pressure sensed in the engine's, air intake system by means responsive to the rate of flow of the intake air, into a proportionately varying amount of gaseous fuel at a positive pressure. That fuel is then injected into the engine's air intake system upstream or downstream Or the throttle valve through flow restrictor means which cooperate with the variable-pressure-controller to provide an amount of fuel proportionate to the rate of air flow through the engine's air intake system. The invention is entirely mechanical-pneumatic in operation and …
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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 May 31, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 31, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.