Venetian blind tilting and lifting unit
CA 1089756 A · Owner: Hunter Douglas Canada Ltd. · Inventors: Hennequin, Petrus J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a drive for a venetian blind the slats of which can be raised or lowered by a lift tape and tilted by a tilting member, having a lift tape drum drivable through a drive shaft, a tilting drum serving to actuate the tilting member, a slip clutch in the path of force between the tilting drum and the drive shaft, and a bearing block which comprises two parallel bearing plates traversed by the drive shaft and between which the lift tape drum the tilting drum, and the slip clutch are axially arranged.
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 November 18, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 18, 1997.
- 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.