Item checkout device and weigh plate with improved electromagnetic field performance
US8033461B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2008 |
| Grant date | Oct 11, 2011 |
| Priority date | — |
| Expiry date | Aug 13, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07G1/0072
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A item checkout device and weigh plate with improved electromagnetic field performance. The item checkout device includes a housing, an electromagnetic field generator in the housing, a barcode reader in the housing, a scale assembly in the housing, and the weigh plate. The weigh plate is supported by the scale assembly and includes a non-metallic planar section located over the electromagnetic field generator and having a top surface resistant to damage and substantially transparent to an electromagnetic field from the electromagnetic field generator, and a window coplanar with the non-metallic planar section and located over the barcode reader.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.