Fluid motor rotor assembly
CA 2011966 C · Owner: Albert, Gregory P. · Inventors: Albert, Gregory P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rotor assembly for a fluid powered vane motor has a cylindrical rotor body with front and rear faces, front and rear shaft portions extending axially from the respective faces, and radial slots extending axially along the rotor body. Fixed to the rear face of the rotor body is an end plate which closes the slots at the rear face so as to simplify assembly of the rotor body into the rotor chamber by retaining the vanes in the slots. A front spacer member on the front shaft portion provides positive location of the rotor body with respect to the shaft bearings, and also supports the front end plate which radially circumscribes the spacer member. In other respects, operation of the vane …
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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 12, 1990 and granted December 1, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 12, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 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.