Weight activated platform scale
US5141065A · kind A · utility
23Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1990 |
| Grant date | Aug 25, 1992 |
| Priority date | — |
| Expiry date | Nov 14, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S177/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pulse count scale includes a change of state detector circuit and an alert circuit which operate together with an electrical interrupter to detect when weight is applied on a scale platform and immediately connect power to a controller for a select interval. These circuits preserve battery power as well as providing simple operation, eliminating the requirement of actuating a separate switch prior to stepping onto the platform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.