Internal combustion engine with rotating and reciprocating pistons
CA 2195883 A1 · Owner: Barfuss, Jack E. · Inventors: Barfuss, Jack E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This pertains to the invention of the new internal combustion engine that consists of the independently operating internal combustion modules in which the Otto cycle occurs as a result of, interaction of cylinders with pistons that not only reciprocate like those in conventional reciprocating engine but also, simultaneously spin around their common (and common with the connecting them shaft) symmetry axis. There is no motion conversion of the reciprocation-to-rotary type as it is in the classical reciprocating engine - the shaft gets its torque straight from the pistons. The connecting rod crankshaft, knuckles, counterbalance, and crankcase are eliminated. Pistons and shaft are guided by …
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 January 24, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 24, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 24, 2019.
- 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.