Pressure responsive electric switch, particularly an evaporator thermostat for refrigerators
CA 1114865 A · Owner: Danfoss A/S · Inventors: Vogler, Jes; Hansen, Peter R.; Thorsen, Niels P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a pressure responsive electric switch, particularly an evaporator thermostat for refrigerators, of which the actuating element is held in equilibrium under the influence of two springs and a pressure generator, e.g. the operating bellows of a thermostatic system with a liquid-vapour filling, and effects switching-over in the one direction in a first switching position of lower pressure and in the other direction in a second switching position of higher pressure, the first spring being disposed between a setting device to fix the first switching position and a coupling station and the second spring being disposed between said coupling station and the actuating …
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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 December 22, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 22, 1998.
- 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.