Diaphragm pump with overfill limiter
US7090474B2 · kind B2 · utility
7Cited by
12References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 2003 |
| Grant date | Aug 15, 2006 |
| Priority date | — |
| Expiry date | Aug 27, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B43/073
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A diaphragm pump which overcomes the problem of diaphragm failure due to overfill of the oil transfer chamber. An overfill preventive element in the form of a mechanical stop, a fully closed coil spring, or a valve system, or alternatives are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.