Double diaphragm pump with air valve block moving in a rectangular pattern
US5860794A · kind A · utility
15Cited by
1References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1997 |
| Grant date | Jan 19, 1999 |
| Priority date | — |
| Expiry date | Apr 10, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B53/22
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An air operated double diaphragm pump is provided with an air valve assembly which allows the valve cup to move in a rectangular pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.