Tilter mechanism for a window blind
CA 2206932 A1 · Owner: Fraser, Donald E. · Inventors: Fraser, Donald E.; Anderson, Richard N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A control mechanism for operating a covering for an architectural opening with the control mechanism being designed to control the tilt or angle of vanes or other such elements used in the covering. The control mechanism is preferably cord driven, but can be driven by a tilt wand. The mechanism utilizes a dye cast zinc spur gear and a die cast zinc worm drive gear that are operably housed in a plastic housing. The housing has two component parts with one part designed to enclose a drum about which a control cord can be wrapped, with the other housing part enclosing the spur gear and worm gear.
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 June 3, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 3, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 3, 2019.
- 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.