Fuel injection nozzle having a force-balanced check
CA 2136258 A1 · Owner: Gibson, Dennis Henderson · Inventors: Shinogle, Ronald Dean; Gibson, Dennis Henderson
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A check valve assembly for a fuel injector includes an injector body having an injector bore therein, an elongate check disposed within the injector bore and an actuator for moving the check along an axial path between a sealing position and an open position. Axial forces acting on the check are balanced during movement between the sealing and open positions so that direct control over the check position may be accomplished through the use of a lowforce actuator.
Read the whole patent
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 November 21, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 21, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 2016.
- 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.