Capacitor discharge ignition method and system
CA 1078915 A · Owner: Black And Decker Inc. · Inventors: Kiner, Gerald T.; Jackson, Robert V.; Anderson, Harold E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A capacitor discharge ignition system employs charge and shutoff coils disposed about a common magnetic core. Shut-off may be achieved by selecting grounding an end of the trigger coil or the shutoff coil into the circuit which achieves the additional effect of loading the charge coil to protect the ignition capacitor. One circuit embodiment provides force commutation of the electronic switch compensation for, variations in temperature inhibition of extraneous triggering of the electronic swithch and selective system shut-off. Extraneous triggering may be inhibited by the biasing of the electronic switch as a function of the polarity of the waveforms as well as by the damping of the …
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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 June 3, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 3, 1997.
- 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.