Cooling and heating device
CA 1204297 A · Owner: Mitsubishi Denki Kabushiki Kaisha · Inventors: Asano, Tadashi; Suzuki, Tadashi; Fujii, Tadatsugu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cooling and heating device having a cooling cycle circuit and a heating cycle circuit with a refrigerant heater for heating refrigerant includes a cooling circuit extending from a compressor through an outdoor heat exchanger, a resistance element (capillary) and an indoor heat exchanger to the suction inlet side of the compressor; and a heating circuit extending from between the discharge outlet side of the compressor and the outdoor heat exchanger directly through the indoor heat exchanger and the refrigerant heater to the suction inlet side of the compressor. In the heating operation the high temperature refrigerant, from the compressor which is heated by the refrigerant, heater flows …
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 May 13, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 13, 2003.
- 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.