Rotary machine
CA 2083517 A1 · Owner: Mayne, Alfred Rickard · Inventors: Mayne, Alfred Rickard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A machine that converts between reciprocating motion of a piston (21) and rotary motion of a shaft (26). The shaft (26) rotates an integral web (25) that carries a number of lobe wheels (23) spaced evenly about a pitch circle centered on the shaft (26). The lobe wheels (23) are planetary driven by pinions (27) and a fixed ring gear (34). The lobe wheels (23) are somewhat star shaped with radially extending lobes which push followers (32) outwardly then release them inwardly, as the lobe wheels (23) orbit past and below the follower (32). The follower (32) is connected by a lever (22) and a pair of connecting rods (36 and 37) to the piston (21).
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 22, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 22, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 22, 2013.
- 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.