Multiple layer pump diaphragm
US6343539B1 · kind B1 · utility
54Cited by
120References
20Claims
0Family size
Inventor
Key dates
| Filing date | Nov 10, 1999 |
| Grant date | Feb 5, 2002 |
| Priority date | — |
| Expiry date | Nov 10, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2225/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pump diaphragm comprising a first layer formed from a first material such as synthetic rubber which is adapted to be substantially impervious to both hydrophobic and hydrophilic liquids. In addition to the first layer, the pump diaphragm includes a second layer which is disposed in laminar juxtaposition to the first layer. The second layer is itself formed from a second material such as a thermoplastic elastomer which is adapted to possess a high level of flexibility and resiliency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.