Apparatus for the intermittent storage and controlled feeding of volatile gasoline components into the intake manifold of an internal combustion engine
CA 2058819 C · Owner: Tinz, Reinhard · Inventors: Heinemann, Joachim; Franz, Rainer; Tinz, Reinhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for the intermittent storage and controlled feeding of volatile fuel components present in an unfilled space of a fuel tank into the intake manifold of an internal combustion engine having a, vent conduit which extends between the unfilled space and the intake manifold, includes an absorption element and is closable by a servo-valve positioned in series after the absorption element. The vent conduit is further provided with a first sensor which is positioned in series before the absorption element and detects a gas flow through the vent conduit. A vacuum actuated valve which is positioned in series before the servo-valve is provided with a second sensor which detects its …
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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
- Filed January 6, 1992 and granted June 8, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 6, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 6, 2014.
- 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.