Method and apparatus for controlling gasoline vapor emissions
CA 1293424 C · Owner: Hirt Combustion Engineers · Inventors: Hirt, John H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A method and apparatus for abatement of gasoline vapor emissions from a vent pipe at a gasoline service station in which a vapor piping system interconnects the vent pipe with gasoline storage tanks and gasoline dispensing nozzles in the service station the apparatus, including a pilot burner with a pilot ignitor a main, burner, first and second vapor pressure switches in the vent pipe for sensing and controlling pressure of vapor in the vapor piping system to maintain the pressure of vapor slightly below atmospheric pressure a regenerative, small turbine located downstream from the first and second pressure switches for moving vapor in the vapor piping system; a …
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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.
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.