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Class Information
Number: 209/458
Name: Classifying, separating, and assorting solids > Stratifiers > With liquid treatment > Stationary bed > Chutes and tables
Description: Stationary chutes or tables on which material with mingled liquid, accompanying or added, is so treated that the heaviest constituents of the material may settle as a stratum, while the lighter may form overlying strata or be carried off by the liquid.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6814241 |
Reflux classifier |
Nov. 9, 2004 |
| 6752274 |
Log washer with staggered paddles |
Jun. 22, 2004 |
| 6336559 |
Spiral separator with replaceable trough sections |
Jan. 8, 2002 |
| 6138833 |
Placer gold mining method, placer gold mining boat used in this method, placer gold digging and separating method and system therefor, and placer gold separating method and system therefor |
Oct. 31, 2000 |
| 5868995 |
Dynamic mining system comprising hydrated multiple recovery sites and related methods |
Feb. 9, 1999 |
| 5785182 |
Portable finishing sluice |
Jul. 28, 1998 |
| 5749472 |
Dynamic mining system comprising hydrated multiple recovery sites and related methods |
May. 12, 1998 |
| 5617955 |
Dynamic-mining system comprising hydrated multiple recovery sites and related methods |
Apr. 8, 1997 |
| 5544756 |
Dynamic mining system comprsing hydrated multiple recovery sites and related methods |
Aug. 13, 1996 |
| 5500136 |
Simulated gold and gemstone mining operation |
Mar. 19, 1996 |
| 5287975 |
Continuous cycle apparatus for separating precious metals from concentrate |
Feb. 22, 1994 |
| 5108584 |
Apparatus for extrating heavy metals from ore |
Apr. 28, 1992 |
| 4863588 |
Riffle bars |
Sep. 5, 1989 |
| 4818375 |
Hydraulically operated different density particle sorting apparatus |
Apr. 4, 1989 |
| 4676891 |
Portable sluice |
Jun. 30, 1987 |
| 4614579 |
Hydraulically operated different density particle sorting process |
Sep. 30, 1986 |
| 4592833 |
Portable sluice box |
Jun. 3, 1986 |
| 4525270 |
Mineral separating process and apparatus |
Jun. 25, 1985 |
| 4483768 |
Apparatus for separating materials of small size |
Nov. 20, 1984 |
| 4371435 |
Placer mining sluice |
Feb. 1, 1983 |
| 4360424 |
Sluice box |
Nov. 23, 1982 |
| 4354778 |
Waterfall technique for removing settled coal solids from a storage facility |
Oct. 19, 1982 |
| 4328093 |
Device for separating granulated material from a fluid flow |
May. 4, 1982 |
| 4319985 |
Gold concentrator |
Mar. 16, 1982 |
| 4290527 |
Sluice construction |
Sep. 22, 1981 |
| 4273648 |
Quick miner's pan |
Jun. 16, 1981 |
| 4253943 |
Continuous flow classification and specific gravity separation apparatus |
Mar. 3, 1981 |
| 4199441 |
Placer mining sluice box apparatus and method |
Apr. 22, 1980 |
| 4157957 |
Splitter assembly having an adjustable gap width |
Jun. 12, 1979 |
| 4078997 |
Separation apparatus |
Mar. 14, 1978 |
| 3970551 |
Gold separator |
Jul. 20, 1976 |
| 3951787 |
Method and apparatus for separating gold and other heavy materials from ore |
Apr. 20, 1976 |
| 3950246 |
Dredge units |
Apr. 13, 1976 |
| 3950030 |
Underwater mining |
Apr. 13, 1976 |
| 3941690 |
Portable sluice pan |
Mar. 2, 1976 |
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