Apparatus for the recovery of useful heat from refrigeration gases
CA 1068917 A · Owner: Smith, Derrick A. · Inventors: Smith, Derrick A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improvement is provided in a heat extraction device provided in association with a heat exchanger system including a condenser, an evaporator, means for circulating a compressed liquid heat exchange fluid between the condenser and the evaporator and a heat a exchange disposed in the system to heat external water. The improvement resides in the use of conical heat exchanger coils in order to maximize heat exchange and the provision of control means for sensing pressure temperature and state of the heat exchange fluid and which regulates the entire operation safely and economically.
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
- Granted January 1, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 1, 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.