Underwater mining apparatus
January 8, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1401994 3905137 Self-propelled machine for sea-bed work Seabed mining utilizing circulating current based on water level differences Device for cutting loose hard ground material Ocean mining system and process Nodule collector Method and apparatus for recovering mineral nodules from the ocean floor Oceanic seaplow system System for collecting and conveying undersea mineral resources InventorsAssigneeApplicationNo. 101293 filed on 01/08/1999US Classes:37/313, By use of submarine or undersea vessel37/317, Suction37/321, With means to introduce lift agent directly into suction pipe37/322, With downstream directed jet nozzle37/905, NONDREDGE EXCAVATING BY FLUID CONTACT OR EXPLOSION175/107, Fluid rotary type299/9, Material mined or excavated underwater405/191From surfaceExaminersPrimary: Shackelford, H.Attorney, Agent or FirmForeign Patent References
International ClassB63C 011/52Foreign Application Priority Data1996-01-06 GBAbstractThere is provided an improved apparatus for recovery of sea-bed material. Known apparatus suffer from problems such as low recovery rate and capital cost. The invention, therefore, provides a recovery apparatus comprising a vehicle upon which are mounted a duct permitting communication between the sea-bed and a location remote therefrom, structure to introduce sea-bed material into the duct and structure to advance sea-bed material through the duct.Field of SearchBENEATH A BODY OF WATER (E.G., DREDGER)By use of submarine or undersea vessel Suction And material size reducer (e.g., crusher) With pumping chamber With means to introduce lift agent directly into suction pipe With downstream directed jet nozzle NONDREDGE EXCAVATING BY FLUID CONTACT OR EXPLOSION Side added to front edge of bottom Remote control From surface Fluid rotary type | |
