Fluid level indicator dial assembly with magnetic calibration feature
US7055386B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2003 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | May 20, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/62
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A dial assembly with magnetic calibration feature adapted for use as part of a gauge assembly for measuring fluid levels in cryogenic applications is disclosed. The dial assembly includes a base, a pivot pin extending from the base, a pointer assembly pivotally mounted on the pivot pin, and a calibration magnet with adjustment feature. The pointer assembly includes a pointer coupled with a pointer magnet. The calibration magnet with adjustment feature is magnetically coupled to the pointer magnet and adapted to adjust a position of the pointer magnet and therefore the pointer relative to volume indicia on a dial face of the dial assembly. In operation, a movement of the calibration magnet induces a movement in the pointer magnet. The adjustment feature is coupled to the calibration magnet such that it is manipulatable even when the dial assembly is mounted on a gauge head of a gauge assembly installed on a vessel. Further, the dial assembly preferably also includes a pivot pin adjustment feature for repositioning the pointer assembly relative to the dial face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.