Diaphragm valve
US4070004A · kind A · utility
26Cited by
6References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 1, 1976 |
| Grant date | Jan 24, 1978 |
| Priority date | — |
| Expiry date | Mar 1, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K7/16
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved diaphragm valve, particularly adapted for applications at high pressures and in applications in which low dead volume is required. The valve has a diaphragm which is formed of a halogenated hydrocarbon polymer of a compression strength sufficient to avoid non-recoverable extrusion of the diaphragm. Use of such a valve totally avoids the work-hardening problem encountered in use of valves using metal diaphragms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.