Fluid expansion valve with limited angular travel rotary control
CA 2349705 C · Owner: Pisot, Philippe · Inventors: Arzenton, Marco; Pisot, Philippe; Cannet, Gilles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A block regulator or fluid expansion valve allowing the pressure or the flow of a fluid to be controlled includes a main body with an inner fluid passage the means to control the pressure or flow arranged in or on at least a part of the inner fluid passage and at least one rotary wheel control cooperating with the means to control in response to a rotary activation of the rotary wheel control means to control or adjust the pressure or flow of the fluid circulating in the inner fluid passage. The rotary wheel control means is mobile in rotation in several distinct angular positions. Each angular position corresponds to a given value of fluid pressure or flow. The angular path is included …
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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 June 6, 2001 and granted May 9, 2017. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 6, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 6, 2023.
- 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.