Weighing scale with voice coil
US4802541A · kind A · utility
24Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1988 |
| Grant date | Feb 7, 1989 |
| Priority date | — |
| Expiry date | Mar 11, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G7/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A weighing scale capable of weighing articles in a rapid and accurate fashion. The tray of the scale is supported by at least one spring and becomes vertically displaced in proportion to the weight of an article placed thereon. A voice coil is used to bias the tray to its original position, and the weight of the article is determined by measuring the current in the voice coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.