Electronically controlled thermostat
CA 2459581 A1 · Owner: Nippon Thermostat Co. Ltd. · Inventors: Takahashi, Masanori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electronically controlled thermostat (1) for arbitrarily variablecontrolling the temperature of cooling water allowing the stable operation of valve elements, capable of preventing overshoot and hunching and capable of , reducing the size of an entire device and simplifying a structure comprising , a thermo element (4) having a piston for opening and closing a first valve element (11) and a second valve element (18) in a housing for switching the flow passages of the cooling water by sensing the temperature of the cooling water and an element guide member (25) for holding the thermo element in the housing (10), wherein a temperature sensing chamber is formed by separating through …
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 March 12, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 12, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 2025.
- 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.