Sifting screen
US10259012B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 8, 2009 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Oct 26, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07B1/4663
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a screen frame adapted for use in a shaker and to which woven wire mesh is to be attached, comprising an outer perimeter and a plurality of plastics ribs extending between opposing regions of the perimeter, the frame being arranged such that, when fitted in a shaker to which it is adapted for, a portion of the opposing regions is clamped in place and a portion of the opposing regions is not clamped with the number of plastics ribs per unit length for the clamped portion greater than the number of plastics ribs per unit length for the unclamped portion, and to a shaker comprising at least one such screen frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.