Pitch equalized chain with frequency modulated engagement
CA 2010910 C · Owner: Avramidis, Stellios Anthony · Inventors: Avramidis, Stellios Anthony
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A power transmission chain having a plurality of pin connected articulating arid guide ranks wherein each rank may include plain links having a thickness that may vary from rank to rank. A group of plain links having a pre-selected thickness is disposed in articulating ranks through-out the chain. Other groups of plain links having a different preselected thickness axe disposed in nonarticulating ranks of the chain. The combination of different thickness plain links disposed in a preselected manner coupled with elastic guide links throughout the chain is effective to minimize wear. The groups of plain links having preselected but different thicknesses cooperate with different thickness …
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 February 26, 1990 and granted August 10, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 26, 2012.
- 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.