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Class Information
Number: 209/485
Name: Classifying, separating, and assorting solids > Stratifiers > Elements > Beds
Description: Devices or special constructions which form supports upon which the heaviest constituents of material form strata.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5617955 |
Dynamic-mining system comprising hydrated multiple recovery sites and related methods |
Apr. 8, 1997 |
| 5563803 |
Fluidized-bed equipment and pressurized fluidized-bed (combustion) combined cycle apparatus |
Oct. 8, 1996 |
| 5544756 |
Dynamic mining system comprsing hydrated multiple recovery sites and related methods |
Aug. 13, 1996 |
| 5520289 |
Device for separating insulation and metallic material |
May. 28, 1996 |
| 5301810 |
Method and apparatus for removing plastic from wood chips |
Apr. 12, 1994 |
| 4997551 |
Concentration for beneficiating minerals |
Mar. 5, 1991 |
| 4962858 |
Cleaning sluice boxes |
Oct. 16, 1990 |
| 4894148 |
Device for separating a heterogeneous mass of solid material into fractions |
Jan. 16, 1990 |
| 4731270 |
Laminated trough for a spiral concentrator and process for construction of same |
Mar. 15, 1988 |
| 4676891 |
Portable sluice |
Jun. 30, 1987 |
| 4664789 |
Classifying device |
May. 12, 1987 |
| 4614271 |
Separating element for vibratory grain separator |
Sep. 30, 1986 |
| 4583645 |
Vibratory grain separating apparatus used with rice-hulling apparatus |
Apr. 22, 1986 |
| 4375491 |
Roll-up fold-up sluice apparatus |
Mar. 1, 1983 |
| 4267037 |
Apparatus for separating waste material contained in a heap |
May. 12, 1981 |
| 4251357 |
Sluice construction |
Feb. 17, 1981 |
| 4237001 |
Ore classifier |
Dec. 2, 1980 |
| 4206046 |
Process and apparatus for separating particles by relative density |
Jun. 3, 1980 |
| 3970551 |
Gold separator |
Jul. 20, 1976 |
| 3950246 |
Dredge units |
Apr. 13, 1976 |
| 3941690 |
Portable sluice pan |
Mar. 2, 1976 |
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