Suction nozzle dredge head
CA 1111869 A · Owner: Deepsea Ventures, Inc. · Inventors: Miller, Glenn E.; Latimer, John P.; Donaldson, Robert M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides means to mechanically assist suction action of a nozzle dredge head in dislodging particles embedded, e.g. on the ocean floor. The mechanical assist means comprises a plurality of fingers extending downwardly from along the upper edge of an obliquely downwardly and forwardly facing nozzle opening. The fingers are resiliently connected to the nozzle and capable of being bent under so as to be juxtaposed across, and thus temporarily block the nozzle, opening, whereby the intake of oversized particles is prevented.
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 November 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 3, 1998.
- 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.