Powered net hauling block with tilt mechanism for net balancing
CA 1233159 A · Owner: Marine Construction & Design Co. · Inventors: Svendsen, Robert A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A net-hauling, power-driven block the frame of which is suspended, from a trolley movable along a track extending between upward extensions of the frame sides. A hydraulic motor on the trolley drives a pinion which engages a sector gear parallel to the trolley track so as to vary the tilt of the block sheave as required to restore seating of the moving net in the sheave groove.
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 February 23, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 23, 2005.
- 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.