Method and apparatus for indicating and adjusting the angular position of a sail
CA 1112954 A · Owner: Schoneberger, George, Jr. · Inventors: Schoneberger, George, Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus and method are provided herein for indicating and adjusting the angle between the horizontal tangent to the luff or effective luff of a sail and the direction of the apparent wind. The apparatus includes a bracket carried by the luff or the effective luff of the sail, and a wind vane pivotally mounted in the bracket, the wind vane being continually responsive to the direction of the apparent wind at angles between and inluding the optimum angle for maximum sail pulling power and the angle at which said sail stalls. The method comprises: (a) measuring the horizontal angle between the tangent to the luff or the effective luff of the sail and the direction of the apparent wind; and …
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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 24, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 24, 1998.
- 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.