Filter screen and method of making same
US5492143A · kind A · utility
19Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 1993 |
| Grant date | Feb 20, 1996 |
| Priority date | — |
| Expiry date | Sep 2, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8122
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter for a valve inlet is drawn into a flat-bottomed cup shape from a blank of fine mesh woven screen and formed with an outwardly extending mounting flange of material folded back on itself. The region of the cup-shape proximate the flange is enlarged to a predetermined diameter for closely interfitting the flow passage into which the cup-shaped member is installed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.