Weighing scales – Self-positioning – Electrical current generating or modifying
Patent
1990-10-29
1992-02-25
Miller, Jr., George H.
Weighing scales
Self-positioning
Electrical current generating or modifying
177229, 177128, 7386265, 338 5, G01G 314, G01G 308, G01L 122
Patent
active
050904930
ABSTRACT:
A novel load cell for use in novel wheel load scales and novel weigh-in-motion scales is provided herein. The load cell comprises a metal rod or bar, with a strain transducer secured to a flattened portion of each of the upper and lower faces of the metal bar. A signal wire has its terminal secured to an end face of each of such strain transducer, and a strain relief means is interposed between each such signal wire terminal and its associated strain transducer. When mounted within a closed bore which is parallel to the upper surface of a flat plate of elastic material, e.g., sheet metal, in a particularly-recited manner, an improved wheel load scale or weigh-in-motion scale is provided. This provides a light weight, low profile, scale which is isolated from external interference, which improves the accuracy of the scale.
REFERENCES:
patent: 3327270 (1967-06-01), Garrison
patent: 4280363 (1981-07-01), Johansson
patent: 4478091 (1984-10-01), Forrester
patent: 4553124 (1985-11-01), Malicki
patent: 4957178 (1990-09-01), Mills
Bergan Terry
Taylor Brian
International Road Dynamics Inc.
Miller Jr. George H.
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