Scroll type compressor
CA 2050693 C · Owner: Iio, Takayuki · Inventors: Morita, Yoshiharu; Iio, Takayuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a scroll type compressor, and more particularly to a scroll type compressor in which a pair of bypass ports which communicate with a chamber being compressed are bored in an end plate of a stationary scroll, and an inner surface of a capacity control block which is separate from the stationary scroll is made to abut against the outer surface of the end plate of the stationary scroll, thus forming a recessed portion which communicates with the pair of bypass ports therebetween, and one cylinder which communicates with a suction chamber in a housing is provided in the capacity aontrol block and a piston operating by a control pressure in accordance with a load …
Read the whole patent
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 September 5, 1991 and granted June 7, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 5, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 5, 2013.
- 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.