Slotted screen scallops for high loading pressures and method of making same
US5015383A · kind A · utility
16Cited by
16References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1989 |
| Grant date | May 14, 1991 |
| Priority date | — |
| Expiry date | Jun 15, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49604
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An elongated screen assembly, which in various forms, is useful as a scallop in a reactor, or as an underdrain for a gravity filter system, has a cross-section in a direction normal to its axis which is at least twice as wide as it is high. A method is also disclosed for manufacturing the screen assembly by pressing the opposed sides of a wrapped wire cylindrical screen assembly between a pair of plates which have radii of curvature which are different from each other and greater than the radius of curvature of the cylindrical screen assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.