Eccentric crank with continuously adjustable throw
CA 2207863 C · Owner: Linn, Orville J. · Inventors: Linn, Orville J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides an eccentric wherein the amplitude of reciprocation or , throw, is, continuously variable, during operation from zero to a maximum. This , represents an improvement over adjustable eccentric devices in the prior art insofar as the conventional, devices needed to be shut down and physically reconfigured to adjust the throw of the, reciprocating arm. The invention will be of use in many functions including , precision, farming applications.
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 June 17, 1997 and granted November 20, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 17, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 17, 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.