Dredging device
CA 1212130 A · Owner: Volker Stevin Baggermaatschappij B.V. · Inventors: Kruisman, Jaap
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dredging device comprised of a device having buoyancy, an arm or ladder, movably connected to it which arm, by means of cables and winches can be moved to and fro according to certain path, the said arm at its outer end being provided with a cutter which can be driven, as well as with the suction mouth of a suction pressure conduit, the pump of which being connected to the arm or within the arm the said pressure, conduit extending along or through the arm up to the floating device, characterized in that the arm consists of interconnected sections the lower section of which carries the cutter head the, pump and the drive motors and the upper section of which being, performed as support …
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 September 30, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 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.