Counterweight for hermetic compressors
CA 2265078 C · Owner: Calciolari, Leonelo Antonio · Inventors: Calciolari, Leonelo Antonio; Silva, Jose Mario
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hermetic compressor assembly having a housing having disposed therein an electric, motor including a stator and a rotor drivingly attached to a crankshaft having an eccentric, portion, and a compression mechanism operatively coupled to the crankshaft eccentric, portion. A counterweight is attached to the crankshaft and is made of progressively stamped, metal stock material having selectively varying widths between first and second side edges, thereof. The counterweight has one of a plurality of weights each individual , weight directly, corresponding to a different stock material width. Also a method for , manufacturing, compressors having installed therein counterweights of …
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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 March 9, 1999 and granted May 27, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 9, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 9, 2021.
- 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.