Load cell assembly
US4775018A · kind A · utility
Inventors
Key dates
| Filing date | Feb 3, 1987 |
| Grant date | Oct 4, 1988 |
| Priority date | — |
| Expiry date | Feb 3, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G19/027
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention provides a sealed shear load cell assembly for direct mounting to the load transfer portion of the weighing platform of a scale assembly. The load cell assembly cooperates with the weighing platform to provide a structural load bearing component for the scale assembly. The top surface section of the beam load cell structure provides a predetermined shear segment in the beam structure. A pair of axially aligned, opposing circular apertures are provided to form stress isolation webs along the longitudinal axis of the beam structure and which have spacially parallel end walls which are oppositely and vertically centered adjacent the predetermined shear segment in the beam structure. Strain gauges are mounted to each parallel end wall of the stress isolation webs, and bearings are operative on the beam structure at predetermined locations outside each said stress isolation web. An interiorly disposed channel structure is further provided in the beam structure for housing the electrical communicative wiring of the strain gauges. The channel structure is further comprised of a centrally disposed aperture extending through the lateral sides of the beam, an aperture through e…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.