Engine block heater with integrated thermostatic control
CA 1197542 A · Owner: Saskatchewan Power Corporation · Inventors: Sulatisky, Michael T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a method and apparatus for heating liquid-cooled, automotive engines during cold weather conditions. The method comprises heating the liquid coolant of the engine with an electric heater emplaced in the coolant containing cooling jacket of the engine block, measuring the engine block temperature with a temperature sensing device and regulating the passage of electrical current to the electric heater in accordance with predetermined high and low block temperature settings.
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 December 3, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 3, 2002.
- 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.