Thermostatic controller
CA 1095145 A · Owner: Yuter, Seymour C. · Inventors: Sonnenfeldt, Richard W.; Bank, Morton L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A control device is provided for controlling the temperature sensed by a thermostat in specific relation to the temperature control setting of the thermostat for thereby controlling work cycles of the system operatively connected to the thermostat. A low resistance heater element is mounted in a vented housing through which a convection current is generated when the heater element is actuated. A damper is movably mounted in the housing for adjusting the convection flow of warm air that outlets through the housing. The housing is mounted a predetermined distance from the sensor element of the thermostat and the thermostat is preset to a desired temperature setting. When the heater element in …
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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 February 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 3, 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.