Load cell having flameproof function
US4619147A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1984 |
| Grant date | Oct 28, 1986 |
| Priority date | — |
| Expiry date | Sep 10, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L1/2218
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A load cell (24, 31, 40, 51, 58, 62, 64, 68, 92, 96, 97) having flame proof function has a load cell body (2) and a flame proof enclosure (25, 33, 36, 41, 69, 78) for covering at least a strain gage carrying portion (5) of the load cell body (2). A load receiving portion (4) connected with the strain gage carrying portion (5) for transmitting a load to the strain gage carrying portion, projects outwardly from the flame proof enclosure. A gap (30) is defined between a first surface of the load cell body and a second surface of the enclosure, so that the load receiving portion (4) and the strain gage carrying portion (5) are freely movable relative to the enclosure. The size of the gap width W.sub.1 and of the gap length L.sub.1 are selected for realizing the flame proof function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.