Flow restrictor and diverter for direct acting pressure regulator
US4972868A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 1990 |
| Grant date | Nov 27, 1990 |
| Priority date | — |
| Expiry date | Feb 8, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7831
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A metallic gas pressure regulator includes a spring casing and a lower casing, sandwiching a diaphragm. The lower casing has axially aligned inlet and outlet ports. A one piece plastic cam stem and relief seat is mounted for movement with the diaphragm and includes a cam surface engaging a movable plastic disk holder. The disk holder is movable within a plastic orifice tube that supports a plastic valve seat. The orifice tube has a removable plastic boost end cap for providing a boost action to the diaphragm. A pressure relief mechanism is incorporated within the upper portion of the diaphragm. A metal disk is affixed in the inlet and includes a flow restricting hole and a flow diverter for directing flow toward the pressure relief mechanism in the event of destruction of the plastic orifice tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.