Multi-range load cell scales
US4660667A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1986 |
| Grant date | Apr 28, 1987 |
| Priority date | — |
| Expiry date | Apr 30, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G23/3707
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A multi-range load cell scale includes heavy- and light-range load cells. For the load weight below a predetermined value, the scale displays the weight data based on the output signal from the light-range load cell. For the load weight above a predetermined value, the scale displays the weight data based on the output signal from the heavy-range load cell. As for change of the load cell from light-range to heavy-range, when it is detected that the weight data WH based on the output signal from the heavy-range weighing load cell is smaller than the weight data WL based on the output signal from the light-range weighing load cell, weight data equal to the weight data WL at the switching point is displayed, in place of the weight data WH.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.