Method and apparatus for controlling heat rejection in a refrigeration system
CA 2009642 C · Owner: Kittler, Reinhold · Inventors: Waschinski, Werner; Kittler, Reinhold
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method and apparatus for controlling heat rejection in a refrigeration system comprising two condensers such a pool dehumidifier water heater and more particularly relates to an apparatus and method which provides simultaneous and variable heat rejection to both pool enclosure and pool water using in combination, a 3-way valve and refrigerant flow control tee. Thus, if necessary, it is possible to render the pool water heater inactive.
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 February 8, 1990 and granted January 25, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 8, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 8, 2012.
- 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.