Diaphragm control valve
US5383646A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 21, 1994 |
| Grant date | Jan 24, 1995 |
| Priority date | — |
| Expiry date | Jan 21, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D16/163
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A diaphragm control valve includes a diaphragm valve member having an outer peripheral section for securing the diaphragm within the valve housing, a valve-closer section displaceable with respect to the valve seat for controlling the flow, an intermediate flexible section permitting the displacement of the valve-closer section, and a cylindrical guiding section between the valve-closer section and the intermediate flexible section. The housing includes a cylindrical guiding surface engageable with the cylindrical guiding section of the diaphragm and with the valve-closer section for guiding the movement of the valve-closer section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.