Load cell apparatus
US4506557A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1983 |
| Grant date | Mar 26, 1985 |
| Priority date | — |
| Expiry date | Mar 24, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L1/2206
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A strain responsive device is a folded cantilever beam having an intermediate portion with a part-cylindrical surface on its under side. The reversely folded end of the beam extends under the part-cylindrical surface. The load is applied to the folded end in alignment with the center of the part-cylindrical surface. Strain gage elements are placed on a flat surface of the beam opposite the part-cylindrical surface. These elements are symmetrically arranged so that their centers are aligned with the centers of the two halves of the part-cylindrical surface. The beam has a substantially constant strain over the length thereof where the strain gage elements are attached, within any selected margin for error. The strain is thus evenly distributed over the length of the strain gage elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.