Portable sluice pan
US3941690A · kind A · utility
15Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1974 |
| Grant date | Mar 2, 1976 |
| Priority date | — |
| Expiry date | Nov 29, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03B5/26
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A portable sluice pan is described for panning for gold and other valuable heavy minerals from placer deposits. The pan includes an elongated trough having a feed hopper at one end and a removable flexible riffle mat in the bottom of the trough to cause the placer pulp to flow in a turbulent manner over the riffles to stratify the heavier and lighter materials. The sluice pan is constructed of light weight material such as aluminum and may be hand held during operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.