Diaphragm and a diaphragm pump
US7647860B2 · kind B2 · utility
7Cited by
5References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2005 |
| Grant date | Jan 19, 2010 |
| Priority date | — |
| Expiry date | Jul 27, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B43/0063
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A diaphragm for a diaphragm pump, which diaphragm is asymmetrical about its longitudinal axis wherein the diaphragm has a central portion and a surrounding annular convolute portion. The convolute portion has a minimum depth and a maximum depth at diametrically opposed positions of the annular convolute. The convolute depth gradually increases from the minimum depth to the maximum depth between the diametrically opposed positions along each opposing half-section of the annular convolute. The invention also provides a diaphragm pump with the asymmetrical diaphragm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.