Electromechanical hinged wing drive
CA 2434572 A1 · Owner: Homberg, Jurgen · Inventors: Homberg, Jurgen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an electromechanical hinged wing drive comprising a door closer (1) with an eccentric pinion (6) that has a circular pitch circle and that intermeshes with a toothed rack (5) that is mounted on the piston (4). The invention is further characterized in that the pitch circle and the teeth (9) of the toothed rack (5) are adapted to the teeth of the pinion (6). In order to obtain an optimum displacement of the piston (4) in the housing (2) of the door closer (1) the design of the closing delay is improved.
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 11, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 11, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 11, 2024.
- 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.