In-line filter and flow control valve
US4381995A · kind A · utility
0Cited by
3References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 11, 1981 |
| Grant date | May 3, 1983 |
| Priority date | — |
| Expiry date | Sep 11, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D35/147
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An in-line filter element is disposed within a tubular valve spool which shifts to either meter or shut-off fluid flow through the valve in response to a preselected pressure differential across the valve and element which is some value below a value which could result in damage to the filter element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.