Scale calibration/zeroing in data gathering system
US5086879A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Sep 4, 1990 |
| Grant date | Feb 11, 1992 |
| Priority date | — |
| Expiry date | Sep 4, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G19/4144
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A data gathering system adapted to be installed within a checkout counter for determining information about products presented for purchase at the counter including the weight of such products comprises two support flanges within the checkout counter. The support flanges define a portion of an upper surface of the data gathering system and a scale supported by the flanges defines the remaining upper surface which comprises a weighing platter for the scale. A scale calibrating and zeroing system is incorporated into the support flanges to be accessible through the upper surface of the data gathering system such that the scale can be periodically zeroed and calibrated as necessary to maintain the accuracy of the scale without removal of the data gathering system from the counter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.