Electronic controller for predetermined temperature coefficient heater
CA 1264823 C · Owner: Siemens-Bendix Automotive Electronics L.P. · Inventors: Romstadt, Douglas J.; Seitz, William R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
31RCWO185 515-84-0010/002a, AN ELECTRONIC CONTROLLER FOR PREDETERMINED TEMPERATURE COEFFICIENT HEATER, Abstract of the Disclosure An electronic controller for a predetermined temperature coefficient heater provides solid state control of the application of power to the heater. In particular, a positive temperature coefficient glow plug wherein the heater is plated on a ceramic substrate glow plug is controlled by contactless solid state controller. The temperature of the glow plug is sampled by a clock signal and compared with a predetermined temperature value. Pulse power is supplied to elevate and maintain the temperature of the heater to the predetermined value. In a complete motor …
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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 January 23, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 23, 2007.
- 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.