Fuel shut-off solenoid pull-in coil relay
CA 2123733 C · Owner: Deere & Company · Inventors: Peterson, Rudolph Andrew, Jr.; Haddick, Brian James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The pull-in coil of a fuel shut-off solenoid on an engine is connected to a relay which in turn is connected to the engine starting circuit. The relay is connected through the oil pressure light switch which opens after a short period of time as the result of a change in oil pressure as the engine is being cranked. Solenoid overheating is avoided since the relay pull-in coil current is cut off as soon as the oil pressure rises.
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 May 17, 1994 and granted August 3, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 17, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 17, 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.