Temperature detector and control for an igniter
CA 2129583 A1 · Owner: Simmonds Precision Engine Systems, Inc. · Inventors: Defreitas, Dennis Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A temperature sensor for detecting temperature of a heating element of an igniter such as a glow plug includes optic means disposable near the igniter for receiving at least a portion of electromagnetic energy emitted by the heating element and coupling the received electromagnetic energy to a circuit means for producing an output related to the temperature of the igniter in relation to a characteristic of the received electromagnetic energy. In one embodiment the, optic means comprises optic fibers that receive electromagnetic energy emitted by the heating element and couple that energy to a photosensitive detector.
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 August 5, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 5, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 5, 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.