Temperature control system for an internal combustion engine
CA 2129378 C · Owner: Kuze, Yoshikazu · Inventors: Kuze, Yoshikazu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A control thermostat is connected to a liquid cooling system of an internal combustion engine. The control thermostat has an inlet side housing an outlet side housing, both the housing being communicated with each other to form a valve passage therein a thermo- actuator provided in the valve passage a valve operated by the thermo-actuator. The inlet side housing and the outlet side housing are communicated with coolant passages of the liquid cooling system so that a part of the coolant in the cooling system flows from the inlet side housing to the outlet side housing passing through the valve passage. The thermo-actuator is arranged so as to close the valve when the coolant temperature is …
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 3, 1994 and granted December 25, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 3, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 3, 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.