Eccentricity gauge and orifice plate
US5155919A · kind A · utility
Inventor
Key dates
| Filing date | Jan 27, 1992 |
| Grant date | Oct 20, 1992 |
| Priority date | — |
| Expiry date | Jan 27, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B5/252
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An eccentricity gauge and orifice plate combination which is used to determine the position of an orifice plate located in an orifice fitting serving a pipeline. In a most preferred embodiment the orifice plate is designed to replace the conventional orifice plate in a conventional orifice fitting and is provided with a hub for lengthening the orifice flow opening to accommodate and stabilize the eccentricity gauge. In a first embodiment the eccentricity gauge includes a dowel pin for insertion in the orifice flow opening, a mount which receives the dowel pin, a dial indicator device adjustably carried by the mount and having a spring-loaded contact point positioned for contact with the inside bore wall of the orifice fitting to measure the eccentricity of the contact point path as the eccentricity gauge is rotated about the orifice flow opening. In a second embodiment of the invention an adjusting bar extends from the mount and receives the dial indicator device in adjustable relationship to accommodate larger orifice plates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.