Method and apparatus for mine sweeping
CA 1319567 C · Owner: Olsson, Thord · Inventors: Ohrwall, Tomas; Gustavsson, Mats; Olsson, Thord
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 method and a system for sweeping marine mines having a magnetic sensor. According to the method spaced electrodes (10 11, 13), are towed by a vessel (12) and the electrodes (10 11, 13) are supplied with electric current from the vessel (12) so as to set up a magnetic field in the water Surrounding the electrodes. At least three electrodes are utilized in the sweeping, and each electrode is Supplied with electric current individually the, strength of which can be controlled. The system comprises a power source arranged on the vessel so as to generate current for the electrodes. The power source allows individually supply and control of the current to each of the …
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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 29, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 29, 2010.
- 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.