Pressure reducing regulator
US5234026A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 1992 |
| Grant date | Aug 10, 1993 |
| Priority date | — |
| Expiry date | Jun 29, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7826
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The pressure reducing regulator includes a balanced valve arrangement, a sensor being resiliently urged toward a valve seat. A sensor insert is mounted by the sensor for axial movement therewith, the insert mounting the valve stem for movement therewtih between an open and a closed position and limited swivel movement relative thereto to form a more positive fluid seal with the valve seat. The valve stem extends through the valve seat. When the pressure decreases in the variable pressure chamber that is axially between the valve seat and the sensor, the sensor, and accordingly the valve stem is resiliently moved to its open position to allow fluid flow thereinto from the regulator inlet. A relatively weak spring and the inlet pressure in the pressure chamber act to result in the valve stem being moved to its closed position against the above mentioned resilient urging when the outlet pressure is at its desired level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.