Ac type ignition system
CA 1103752 A · Owner: Texaco Development Corporation · Inventors: Canup, Robert E.; Burton, Aubrey T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
AN AC TYPE IGNITION SYSTEM, (D#74,581-F) Abstract of the Disclosure, An electronic control circuit for use in connection with an AC type ignition system which employs a relatively high frequency oscillator. The oscillator generates an AC spark signal that has a controlled duration. The starting of each spark signal is controlled by an engine-timed signal, and the time duration of the spark signal is made inversely proportional to the engine speed. The result is an AC spark with a duration that coincides with a constant degree of crank angle rotation of the engine. I
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
- Granted June 23, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 1998.
- 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.