Filtering flow in a valve
US5582205A · kind A · utility
8Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1995 |
| Grant date | Dec 10, 1996 |
| Priority date | — |
| Expiry date | Apr 18, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8085
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A unitary cup-shaped grid member having a grid of holes in the closed end is inserted in the inlet of a valve and a cup-shaped fine-mesh primary filter screen inserted therein and snap-locked in place. In the event the screen clogs and is removed by the user, the grid provides some back-up or auxiliary course filtering to protect the valve in service after removal of the primary filter screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.