Bi-planar differential pressure transmitter with orthogonal process connections
US6918303B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2004 |
| Grant date | Jul 19, 2005 |
| Priority date | — |
| Expiry date | May 27, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L19/0007
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressure transmitter apparatus includes a unitary body with two, normally vertical pressure passageways communicating respectively between opposed pressure openings extending normally horizontally through the body portion. A transducer for generating a differential pressure signal mounts on a transducer mounting element, coupled to the body portion and located above the pressure passageways. A pair of diaphragm elements can form first and second process diaphragms, closing first and second pressure openings. Flange elements overlie the diaphragm elements and are removably and replaceably secured to the body portion, having liquid drainage and gas purging passageways. A flame retardation element can be disposed within at least one of the pressure passageways. An overrange protection element can be integrally arranged with the unitary body portion to protect the transducer from overrange pressure fluctuations. Extensions on the flange elements afford a variety of mounting options, including mounting to industry standard pipe mountings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.