Apparatus for applying a load to a strain gage transducer beam
US4411327A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 1981 |
| Grant date | Oct 25, 1983 |
| Priority date | — |
| Expiry date | May 14, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S177/09
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a platform scale in which the strain gage transducer beams are preferably formed as an integral part of a platform it is important that any distortions such as horizontal or angular force components that could falsify the reading of the weight, are prevented from affecting the transducers. For this purpose, the vertical load or weight representing force components are transmitted to each strain gage transducer beam through at least two cooperating curved, preferably spherical, surfaces. One curved surface has a larger curvature than the other so that a sufficient motion in any horizontal direction is permitted. The horizontal yielding prevents the transmission of a horizontal or angular force component to the sensing strain gages of the respective transducer beam but does not adversely affect the vertical force transmission to the transducer beams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.