Bathroom scale
US4765422A · kind A · utility
9Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 1, 1987 |
| Grant date | Aug 23, 1988 |
| Priority date | — |
| Expiry date | Jun 1, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G23/163
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A scale wherein a platform is mounted on and is movable and/or deformable with reference to a base in response to the application of a load, such as the weight of a person standing on the platform. A strain gauge is mounted on a plate-like carrier on the base or directly at the underside of the platform, and its resistor is a thick film conductor whose resistance changes proportionally with the magnitude of the load which is applied to the platform. Such change of resistance is used to change the position of a pointer with reference to a scale which is calibrated to indicate the magnitude of the applied load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.