Vane-type rotary compressor
CA 1237703 A · Owner: Nippon Piston Ring Co. Ltd. · Inventors: Yanagihashi, Kikuji; Sakamaki, Hiroshi; Horikoshi, Yukio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vane-type compressor has a rotary sleeve mounted in a center housing for rotation with a plurality of vanes movable radially in a rotor . The rotary sleeve is floatingly supported in an air-bearing room defined between the outer periphery of the rotary sleeve and the inner periphery of the center housing. The air-bearing room has a supply of air through an inlet port internally connected to a discharge chamber or a compression working space immediately before vent to the discharge chamber. At least a pocket is provided in the inner periphery of the center housing to increase the bearing performance of the air-bearing room and protect the rotary sleeve and the center housing against …
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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 June 7, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 7, 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.
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.