Axial sealing mechanism for a scroll type fluid displacement apparatus
CA 1282385 C · Owner: Sanden Corporation · Inventors: Terauchi, Kiyoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A scroll type fluid displacement apparatus is disclosed in which a pair of scrolls interfit at an angular and radial offset each scroll including, a circular end plate and a spiral element. The axial end surface of each spiral element has a groove along its spiral curve and a seal element is fitted in the groove to seal off fluid pockets. A plurality of projections are formed in the bottom surface of the groove at a predetermined spacing. Then, when the scrolls are assembled in their interfitting positions the seal element is partly compressed and deformed by the projections and the opposing circular end plate so that the seal element maintains contact with the facing end plate of 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 April 2, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 2, 2008.
- 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.