Combination reversing valve and expansion device for a reversible refrigeration circuit
CA 1136873 A · Owner: Carrier Corporation · Inventors: Ciarlei, Joseph A.; Tobin, Curtis L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Combination Reversing Valve and Expansion Device for a Reversible Refrigeration Circuit Abstract, Apparatus is disclosed for serving as both a reversing valve and an expansion device in a refrigeration circuit. A valve gate having passageways to direct refrigerant between the indoor and outdoor heat exchangers to effect the function of a reversing valve is disclosed. In addition, the valve gate has multiple flow restriction devices which are selectively incorporated within a refrigeration circuit between the indoor heat exchanger and the outdoor heat exchanger to effect the appropriate amount of flow restriction dependent upon the mode of operation of the unit. These two functions may be …
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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 December 7, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 7, 1999.
- 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.