Sifting screen
US7316321B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2002 |
| Grant date | Jan 8, 2008 |
| Priority date | — |
| Expiry date | Dec 29, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07B2201/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A screen for use in a vibratory machine for separating particulate material from liquid material comprising a rigid rectangular support frame having flanges along all four edges to which screen cloths of the type described are bonded with the longer dimension of the rectangular openings defined by the warp and weft wires of the cloth parallel to the longer dimension of the frame. The frame includes an array orthogonal rigid interstices defining a plurality of similar sized rectangular openings or window and the cloths are also bonded to the interstices for the purpose of maintaining the length to width ratio of the openings in the cloths defined by the warp and weft wires thereof. The warp and weft wires of the cloths are tensioned before being bonded to the flanges and interstices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.