Eccentric crank assembly for a reciprocating piston air compressor
CA 2087581 C · Owner: Wood, Mark W. · Inventors: Wood, Mark W.; Steurer, Brian M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is directed to an improved eccentric crank assembly for a reciprocating piston type air compressor. The eccentric crank assembly includes an eccentric plate, a compressor shaft, and an eccentric shaft. The eccentric plate is provided with a pair of parallel overlapping openings formed therethrough. The compressor shaft includes one end provided with a flat angled surface, and the eccentric shaft includes one end provided with a corresponding flat angled surface. The angled surface ends of the shafts are disposed within the openings of the plate. When the eccentric shaft is moved away from the compressor shaft, the angled flat surfaces force the shafts radially apart and into …
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 19, 1993 and granted April 7, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 19, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 19, 2015.
- 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.