Method of and apparatus for controlling a heat transfer plant
CA 1088902 A · Owner: Van Der Meulen, Theo · Inventors: Van Der Meulen, Theo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of controlling a heat transfer plant having a circulating heat carrier which circulates at a constant rate. By the control method central heating plants can enjoy optimum running as a function of the heat consumed and the problems of the prior art in over-heating or under-heating rooms are avoided. In the method the feed temperature is so regulated as a function of the temperature differential measured between feed and return, that the actual temperature differential is equal to an adjustable desired temperature differential or a desired temperature differential pattern and in such a way, that the lower limit of the feed temperature is limited by a predetermined minimum temperature.
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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 November 4, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 4, 1997.
- 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.