Method and equipment for utilization of the freezing heat of water as a source of heat of a heat pump
CA 1233330 A · Owner: Rintekno Oy · Inventors: Juhola, Pentti
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method and equipment for the utilization of the freezing heat contained in water as a source of heat of a heat pump. The water flow to be utilized as the source of heat is evaporated in one or several stages (4) at such a low pressure that when the vapor, that is formed binds its evaporation heat out of the water, part of the water freezes. The vapor formed is condensed in one or several heat exchangers functioning as the evaporator of the heat pump, whereat the vapor on being condensed, delivers its heat to the heat transfer medium used in the heat pump. (Fig. 1)
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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 March 1, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 1, 2005.
- 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.