Diaphragm pump
US5066204A · kind A · utility
16Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1990 |
| Grant date | Nov 19, 1991 |
| Priority date | — |
| Expiry date | Jul 2, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K33/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A diaphragm pump intended to pump gases or highly-volatile liquids include a vibrating arm (6) acting on a diaphragm (5) placed into oscillation by a fixed electromagnet (7) fed with alternating or direct electric current. The vibrating arm (6) is composed of a single piece of plastic material, with an enlarged head (11) integrally molded with at least one permanent magnet (9) located opposite electromagnet (7). Opposite the head (11), the vibrating arm (6) has an elastically deformable part (12) attaching the arm to pump housing (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.