Device and method for calibrating a weighing apparatus
US6792371B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Jul 19, 2001 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Jul 19, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L25/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for calibrating a plurality of weighing installations of the kind having a working configuration of at least one working load cell (14) with a fixed side and a load-bearing sides, a support (16) for the fixed side, and a load (12) operatively mounted on the load-bearing side, comprises portable apparatus moveable between installations to be calibrated, and fixed apparatus at each installation. The portable apparatus includes a reference load cell (30) and a fluid ram (32), the fixed apparatus includes anchorage means (22) fast with the working load cell support (16), and the reference cell and the ram are removably connectable between the anchorage means and the load-bearing side of the working load cell to apply calibrating loads to the working load cell in its working configuration. As many rams and reference cells may be provided as there are working load cells for any weighing installation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.