Epitrochoidal crankshaft mechanism and method
CA 2571015 C · Owner: Venettozzi, Thomas Mark · Inventors: Venettozzi, Thomas Mark
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a machine with a cylindrical housing having at least one reciprocating piston traveling between top and bottom dead center positions a , crankshaft , with a crankpin radially disposed on the crankshaft and having a crankpin axis parallel to , the crank axis, and a connecting rod with an upper end pivotally attached to the piston , and a lower end pivotally attached to the crankpin. A mechanism comprises an eccentric , bearing with an axially eccentric journal the eccentric bearing interposed , between the lower end and crankpin to generate a noncircular path for the lower end during rotation , of the crankshaft. The noncircular path of the lower end of a connecting rod …
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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 June 27, 2005 and granted July 2, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 27, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.