Arrangement for fitting a propeller assembly to an opening in a bottom structure of a water-craft and for dismantling the assembly therefrom
CA 1237951 A · Owner: Kamewa Ab · Inventors: Haglund, Kjell
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A propeller assembly (2), a so-called thruster intended to, be fitted to an opening (7) in a bottom part (1) of the shell structure of a watercraft, for example an offshoreplatform, is provided with a mounting flange (9) which can be connected in a pressure tight fashion to the shell structure around the opening (7). To enable the assembly to be fitted and dismantled from outside the shell structure and beneath the surface of the water on which the craft floats without requiring the assistance of a diver there are used a plurality of lines (12) which can be connected to lifting devices in the watercraft and passed out through a corresponding number of line openings 113) located in the shell …
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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 June 14, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 14, 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.