Diaphragm pump having a reed valve barrier to hydraulic shock in the pressurizing fluid
US4050859A · kind A · utility
19Cited by
8References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 1, 1976 |
| Grant date | Sep 27, 1977 |
| Priority date | — |
| Expiry date | Jul 1, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B43/067
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Apparatus for an improved diaphragm pump wherein hydraulic shock and mechanical wear to the diaphragm membrane is reduced by providing a circular reed valve member adjacent to the diaphragm. The reed valve member provides a barrier to pressurized hydraulic fluid jets from direct impingement upon the diaphragm membrane, and provides a valve closure member for reducing hydraulic shock effects on the diaphragm membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.