Two-way cartridge valve for aggresive media
US5449142A · kind A · utility
37Cited by
8References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 12, 1994 |
| Grant date | Sep 12, 1995 |
| Priority date | — |
| Expiry date | Dec 12, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/404
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A two-way cartridge valve for aggressive media has a replaceable module including a main valve seat, a diaphragm sealing member for the valve seat, and a pilot seat. In one embodiment, a leaf spring is employed to bias the diaphragm toward the open position for actuation under conditions of minimal pressure differential. In another embodiment a resilient support is provided for the diaphragm behind the region of engagement with the main seat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.