Diaphragm pump including a wobble plate
US6840745B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2000 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | Jul 28, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/789
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A diaphragm pump comprises a two part casing formed of a front cover (10) and a back cover (12). A diaphragm plate (14) extends across the covers (10,12) and is secured therebetween when the covers (10,12) are fastened together. The diaphragm plate (14) has a plurality of similarly defined circular regions (16). The front cover (10) has substantially axially aligned inlet and outlet ports (18), each leading to mutually exclusive inlet and outlet chambers (22,24) respectively. A valve housing (26) is securable inside the front cover (10) and has defined therein an outlet dished valve seat (28) with a correspondingly concave resilient valve (30) seated therein. The outlet valve seat (28) has fluid passages therethrough. A plurality of inlet valve seats (34) is provided, equal in number to the number of regions, each being similarly dished and having a correspondingly concave resilient valve (36) seated therein. Each inlet valve seat (34) has fluid passages therethrough. The outlet valve (30) is in fluid communication with the outlet chamber (24) and the inlet valves (36) are in fluid communication with the inlet chamber (22). A wobble plate (40) is positioned in the back cover (12) a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.