Air valve for an air driven reciprocating device
US8047222B2 · kind B2 · utility
4Cited by
45References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2004 |
| Grant date | Nov 1, 2011 |
| Priority date | — |
| Expiry date | Feb 28, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8663
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An air operated double diaphragm includes an air valve, air chambers, a center section between the air chambers, pump chambers and diaphragms between the air and pump chambers harnessed together with a piston rod. The air valve includes a statically dissipative body having a bore therein with a statically insulative liner in the bore. The statically insulative liner is fully enclosed within the statically dissipative body. A valve element is slidably positioned in the liner. The liner includes annular tenons to mate with annular mortises in the statically dissipative body and an end cap is used to close the valve cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.