Lubricating mechanism and method for a piston assembly of a slant plate type compressor
CA 2022012 C · Owner: Terauchi, Kiyoshi · Inventors: Terauchi, Kiyoshi; Shimizu, Shigemi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A slant plate type compressor having a lubricating mechanism for a piston assembly includes a housing having a cylinder block provided with a plurality of cylinders and a crank chamber adjacent the cylinder block. A piston slides within each cylinder and is reciprocated by a wobble plate driven by a cam rotor mounted on a drive shaft. Each piston is connected to the outer periphery of the wobble plate by a connecting rod. The piston has at least one piston ring disposed on its outer peripheral surface. The piston and connecting rod are connected by a ball-socket connection. During the compression stroke, the lubricating mechanism which has a conduit formed in, the piston supplies …
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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
- Filed July 26, 1990 and granted August 13, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 26, 2012.
- 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
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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.