Laminated trough for a spiral concentrator and process for construction of same
US4731270A · kind A · utility
0Cited by
9References
4Claims
0Family size
Inventors
Key dates
| Filing date | Jun 16, 1986 |
| Grant date | Mar 15, 1988 |
| Priority date | — |
| Expiry date | Jun 16, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31565
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A laminated trough for a spiraled mineral concentrator; the trough composed of two or more laminates, chemically bonded, and the process for constructing the same. The trough includes a top laminate of highly abrasion-resistant soft elastomer, the elastomer applied as a liquid directly to a release treated mold; and a bottom laminate composed of a rigid material which is applied to the soft elastomer before final curing of the latter, the bottom laminate providing structural support for the soft elastomer. An intercoat, chemically bonded to both top and bottom laminates, may also be provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.