Multiple compressor oil system
CA 1212555 A · Owner: Hussmann Corporation · Inventors: Norton, Robert O.; Dicarlo, Leonard J.; Ares, Roland A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An oil control valve in an oil separation and delivery system for a multiple compressor refrigeration system, the oil system having oil and refrigerant separating means connected to receive the common discharge from the compressors and oil delivery means for maintaining compressor oil levels at the suction side of the respective compressors said oil control valve being disposed between the separating means and oil delivery means and including a valve body having an oil inlet connected to receive liquid oil from the separating means on the high pressure side of the refrigeration system and an oil outlet for low pressure connection with the oil delivery means internal valve means, controlling …
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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 October 14, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 14, 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.