Can-measuring densitomer
US5274438A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1991 |
| Grant date | Dec 28, 1993 |
| Priority date | — |
| Expiry date | Sep 23, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/5996
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for measuring the color quality of rounded objects is disclosed. A stand has a mandrel for holding the object in a fixed position. Preferably, the mandrel includes an expandable bladder mounted for rotation on an axle. The stand has a reflectometer coupled thereto in such a way as to permit angular movement of the densitometer in a fixed plane. The can is clamped in a fixed position between the holding means and the densitometer such that the densitometer is in a fixed radial orientation relative to the surface of the object. Different points on the surface of the object may be measured by rotating and translating the object and/or the reflectometer. Rotational and translation control of positioning can be performed automatically.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.