Pressure gauge overpressure safety release
US6216541A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 1995 |
| Grant date | Apr 17, 2001 |
| Priority date | — |
| Expiry date | Dec 13, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L7/041
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressure gauge in which the displacement tip of the Bourdon tube is sealed and secured to a bracket of an amplifier movement by a selected solder composition affording a failure response to an encountered overpressure at a pressure value lower than the burst pressure of the Bourdon tube. Overpressure causes a fracture in the solder to be incurred enabling release of the overpressure while a throttle plug situated in the inlet path to the Bourdon tube severely restricts continuing gas flow to the fracture site. As a consequence, released flow from the solder fracture will be at a pressure insufficient to potentially cause explosion of the gauge case/lens to occur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.