Piston diaphragm with integral seal
US6672561B2 · kind B2 · utility
36Cited by
27References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2002 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Aug 21, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K41/103
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A radial diaphragm valve includes a diaphragm having an elongated stem that is threadably or otherwise installed on an actuator piston. The elongated stem is slideably received in a bore formed in the actuator housing, and includes a circumferential recess that receives a seal. The seal provides a backup seal function separating the process fluid from the interior region of the actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.