Electric motor-drive for a bowden-cable window lifter
CA 2049836 A1 · Owner: Kuster And Co. Gmbh · Inventors: Marscholl, Klaus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electric-motor drive system for a bowden-cable window lifter is provided hereby. The system includes a braking spring in the form of a helical spring in the manner known from manual bowden cable window lifters. This is made possible by the inclusion on the worm wheel of an arcuate slot crossed by a tab affixed to the cable reel and extending to the other side of the worm wheel into the clearance of a ring affixed to the worm wheel. The ring and the tab are enclosed by the helical spring of which the bent-off ends each enter the gap between the tab and ring. These components (ring tab, and spring) are combined to one side of the worm wheel, and achieve the locking of the cable mechanism - …
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 August 26, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 26, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 26, 2013.
- 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.