Multi-hardness composite screen frame
US7389882B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2007 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Jul 9, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07B1/4645
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A self-cleaning screen assembly for a vibratory separator is disclosed. The self-cleaning screen assembly includes a peripheral frame having a top mounting surface to which at least one screen cloth is affixed and a bottom mounting surface to which a flow through support screen is affixed. One or more cleaning elements are freely located between the support screen and the screen cloth. The peripheral frame includes a rigid support section, a cushioned top strain relief zone, and a cushioned bottom strain relief zone. The top strain relief zone, the bottom strain relief zone and the rigid support section may be discrete components wherein the strain relief zones are formed by strain relief pads that are located adjacent to a rigid support member. The top strain relief zone provides cushioned support to the screen cloth around the edge of the screen frame adjacent to the opening. The bottom strain relief zone provides cushioning for the support screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.