Scroll type compressor
CA 1321570 C · Owner: Sanden Corporation · Inventors: Kikuchi, Kazuto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An oil separating mechanism of a hermetically sealed scroll type compressor in which an inner chamber of a housing is kept at discharge pressure is disclosed. The compressor includes a drive shaft supported by a plain bearing in an inner block member. The drive shaft is operatively linked to an orbiting scroll which orbits within a stationary scroll. The drive shaft includes an axial bore extending from an open end and termination within the inner block member. A radial bore is provided near the terminal end of the axial bore and links the axial bore to a discharge chamber of the compressor. A helical groove is formed on the exterior surface of the supported portion of the drive shaft. The …
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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 August 24, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 24, 2010.
- 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.