Debris arrestor for valve bleed hole
US5027850A · kind A · utility
40Cited by
13References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1990 |
| Grant date | Jul 2, 1991 |
| Priority date | — |
| Expiry date | Jun 13, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/4343
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid flow control valve has a diaphragm for sealing against a valve seat. The diaphragm includes a bleed hole for passing fluid from one side of the diaphragm to the other. A debris arrestor comprising a one-piece flexible tag is inserted into the bleed hole by deforming the tag to pass therethrough. The tag after insertion expands to retain itself in the bleed hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.