Patents in subclass Excavating/Axis Transverse With Respect To Suction Pipe

Parent class: Excavating

Number Patent title Issue Date
06318005 Dredge with improved auger shroud

A dredge supporting a pivotal ladder with a suction auger on its free end. A shroud assembly including front, center and rear sections surrounds a large portion of the periphery of the auger. The shroud assembly is pivotal about the axis...
11/20/2001
06209965 Marine clathrate mining and sediment separation

A method and apparatus for mining of hydrocarbons from a hydrocarbon-containing clathrate such as is found on the ocean floor. The hydrocarbon containing clathrate is disaggregated from sediment by first disrupting clathrate-containing...
04/03/2001
5651200 Debris exclusion devices for an augerhead type hydraulic dredge system

The present invention pertains to debris exclusion devices designed for use on a small augerhead type hydraulic dredge system for operations in debris laden channels that can cause the system's pump to malfunction. Debris to be excluded...
07/29/1997