Portable scale with load cell
US5440078A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 19, 1993 |
| Grant date | Aug 8, 1995 |
| Priority date | — |
| Expiry date | Jul 19, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G19/027
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A load cell for scales and the like has an elongated bar having opposite sides, sloped ends and a removable top portion. A pair of load cells are mounted within the housing with each load cell comprising an elongated bar having opposite ends, opposite sides, a center portion, and top and bottom surfaces. The bar has cavity openings extending into the sides thereof adjacent each of the opposite ends. A strain gauge is mounted in each of the cavity openings and is sensitive to deflection of the bar caused by weight exerted on the top surface of the bar. Each of the strain gauges are connected to a visual readout apparatus which collectively reflects the loads imposed upon the bars. A cantilever support element is positioned on the bottom surface of the bars and has a length less than the bars to create a space below the bottom thereof and a support surface upon which the cantilever support bar is positioned to suspend the ends of the bar in cantilever fashion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.