Worm drive for setting the angular position of vertical lamella blinds
CA 1316096 C · Owner: Spohr, Horst · Inventors: Hugin, Walter; Spohr, Horst
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A worm drive is disclosed for adjusting the angular position of vertical lamella blinds, the worm drive comprises a vertical shaft, arranged inside a lamella carrier housing which shaft carries a pinion torsionally connected thereto and has one end joined to a lamella of the blind. A worm gear, driven by a drive shaft, engages with the pinion. The worm drive of the invention is characterized by a worm gear having an axial center opening and held by a snap-on sleeve on a hub disposed in the lamella carrier. The worm gear is provided with a series of indentations that engage with cams arranged on the outside circumference of the snap-on sleeve so as to form a friction clutch that allows over …
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
- Granted April 13, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 13, 2010.
- 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.