Driven equipment for fluid machinery
CA 2309129 A1 · Owner: Tagami, Masahiro · Inventors: Tagami, Masahiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fluid machinery driven equipment such as a rotary pump has a simple structure and high efficiency with a small size and law cost. The driven equipment includes a tubular casing having an inner surface which is substantially elliptical in shape, front and rear covers for covering the tubular casing through fastening means, a rotary shaft provided in the tubular casing and is supported by the front and rear covers and a rotor provided in the tubular casing and connected to the rotary shaft. The rotor is formed of a first arm a, piston rotatably connected to each end of the first arm through a piston pin where the piston having an outwardly curved surface and each end has an inwardly bent …
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 May 23, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 23, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 23, 2022.
- 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.