Automatic purger for a hydraulically controlled double diaphragm pump
US4560324A · kind A · utility
3Cited by
9References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 23, 1985 |
| Grant date | Dec 24, 1985 |
| Priority date | — |
| Expiry date | May 23, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/3084
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The automatic purger has an intermediate chamber (11) one of the walls of which is formed by an elastic diaphragm (10), termed front diaphragm, whereas the other wall is formed by a second elastic diaphragm (12), termed rear diaphragm. This chamber is connected to a purger (20) formed by a body (21) defining a small internal enclosure (22) in which an element (25), which is highly permeable to the gas, is disposed. The invention is applicable to a hydraulically controlled or actuated pump of the reciprocating or displacement type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.