Control system for multiple input scales
US5296655A · kind A · utility
18Cited by
2References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1992 |
| Grant date | Mar 22, 1994 |
| Priority date | — |
| Expiry date | Feb 10, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G23/01
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The disclosed invention is a control system for the systematic testing, calibration, and operation of weighting apparatus having multiple inputs. The invention also provides a fault alarm. The system utilizes a summing network of resistors and switches to isolate and test or calibrate selected load cells controlled by the system Additionally, the summing network and the isolation switches of the control system provide a means for continued operation of defective scales having substantially equal load inputs. This is accomplished by electrically isolating those load cells which have become defective.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.