Patents in subclass Excavating/Adapted To Excavate Specific Discrete Material

Parent class: Excavating

Number	Patent title	Issue Date
07011749	Remediation with ozone of sediments containing organic contaminants A system for treating sediments contaminated with organic contaminants, such as polychlorinated biphenyls (PCBs) and other contaminants polyaromatic hydrocarbons (PAHs) and dichlorodiphenyltrichloroethane (DDT) includes treating the...	03/14/2006
06832465	Aquatic weeding device An aquatic weeding device is provided for removing aquatic vegetation from a body of water and transporting the vegetation to a desired location. The weeder includes at least one weeding element connected with respect to a vessel for...	12/21/2004
06499239	Method for extracting and grading sand A method for extracting and grading or sizing sand, gravel or a mixture thereof, from a pit formed in untouched ground. Liquid is sprayed into the ground, resulting in a fluidized state in the ground, in which state sand or gravel with a...	12/31/2002
06343559	Transportation system for dredged material and method of levy building A system for transporting material recovered in a dredging operation performed by a dredge is disclosed. The system includes a water-borne material distribution vessel including a conveyor system for receiving and depositing the recovered...	02/05/2002
06216367	Classifying and air-stratifying gold separator with inclined sequential chute cone array and size-classifying screen A sluice comprising a series of sequential, interconnected chutes, each inverting a stratified slurry, discharges the slurry in each chute over a mesh screen in a subsequent chute and eventually out of the sluice, with each incremental...	04/17/2001
6079130	Portable gold mining dredge A portable gold mining dredge for use in collecting potentially gold containing aggregate from streambeds for subsequent classification and separation. The dredge has a receptacle, comprised of a drum with a water-tight lid, for receiving...	06/27/2000