Scotch yoke engine
CA 2445470 A1 · Owner: Raffaele, Peter Robert · Inventors: Raffaele, Peter Robert; Raffaele, Michael John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a scotch yoke fluid device (10). The scotch yoke fluid device (10) has a crank (11) with a big end having an axis (14) which orbits around a main axis (15) for the crank (11). Connecting means (13) are mounted on the big end axis (14). There is at least one piston (22) mounted for reciprocating motion in a cylinder (18) along a piston axis. The piston has a cross-sectional area perpendicular to the piston axis. The piston also has guide means (16) which include a linear surface transverse to the piston axis. The guide means (16) engage engagement means on the connecting means. There is at least one restricting means (24) for constraining the piston (22) to …
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 April 29, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 29, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 29, 2024.
- 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.