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 |
