Automatic weighing system with density ratio control of volume
US4721173A · kind A · utility
9Cited by
1References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1987 |
| Grant date | Jan 26, 1988 |
| Priority date | — |
| Expiry date | Mar 16, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G15/001
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An automatic weighing system for delivering quantities of product measured by weight, each quantity having a weight equal or approximate to a predetermined target weight, in such manner that the volume of each quantity falls always within a predetermined allowable range even when the product to be weighed has a substantial variance in its apparent density or specific gravity. The system includes means for measuring the apparent density and means for controlling the target weight in accordance with the measured value of apparent density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.