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 |
| 5412884 | Waste material pond cleaning apparatus A dragline apparatus for cleaning waste material and sludge in clarifierand settling ponds and lagoons includes a pair of side walls and a backwall forming a frame supported on front and rear flotation rollers.Between the home member is at least one... |
05/09/1995 |
| 5328250 | Self-propelled undersea nodule mining system A self-propelled machine has an internal chamber having a conveyormechanism extending through an opening in a wall. A buoyancy controlallows admission of pressurized air into the chamber to allow adjustmentof the buoyancy of the machine. A series of... |
07/12/1994 |
| 5199767 | Method of lifting deepsea mineral resources with heavy media Heavy media, which are heavier than the bulk density of nodules of rawdeepsea mineral resources, are used to discharge the nodules on a marineship through a lifting pipe from a sea floor U-tube connecting with adownstream pipe laid to the deepsea... |
04/06/1993 |