Craft for spreading pulverulent treatment agents over lakes
CA 1215887 A · Owner: Imeko System Ab · Inventors: Dahlstrom, Olof; Johansson, Kenneth
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A craft for spreading pulverulent treatment agents over lakes includes a propulsion source for moving the craft to desired sections of the lake and at least one device for spraying a slurry of the treatment agent and water over the surface of the lake. The craft further comprises a storage space(5) in the hull of the craft for receiving and storing said treatment agent in dry form and, as spraying device, an ejector(3) which upon spraying mixes water taken from the lake with dry treatment agent from the storage space(5), the water serving as driving medium and the treatment agent as secondary medium, said ejector communicating via a conduit with a pump adapted to communicate with 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 December 30, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 30, 2003.
- 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.