Valve unit for a reciprocating compressor for refrigerators and the like
CA 2033166 A1 · Owner: Peruzzi, Federigo · Inventors: Andrione, Norbert; Peruzzi, Federigo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The unit includes a valve plate (50) fitted to a head end of the cylinder of the compressor and having a valve-controlled intake port (54) and an exhaust port (56) surrounded by an annular seat (58) formed in an opposite face of the plate (50) from that which faces the cylinder, an exhaust valve reed (60) associated with the seat (58) and means (64) fixed to the plate (50) for limiting the travel of the exhaust reed (60). The exhaust reed (60). includes a base portion (66) which is restrained on the plate (50) an, obturating head portion (72) spaced from the base portion (66) and cooperating with the seat (58) and an elongate portion (70), connecting the base and head portions (66 72). The …
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 June 5, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 5, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 5, 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
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.