Weighing devices
US3991840A · kind A · utility
9Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1975 |
| Grant date | Nov 16, 1976 |
| Priority date | — |
| Expiry date | Jul 14, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G7/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A top loading weigh balance is described which comprises a platform supported by a plurality of resilient suspension devices. Each suspension device is associated with a transducer connected in a resonant circuit of an oscillator, the transducers being arranged to vary the output frequency of the oscillator in accordance with the overall change in displacement of the suspension devices, and hence the load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.