Scale construction

Details Scale construction Scale construction

1977-11-30

1979-11-20

Hartary, Joseph W.

Weighing scales

Self-positioning

Electrical current generating or modifying

73141A, 177229, G01G 314

Patent

active

041747607

ABSTRACT:
A scale construction comprises a pair of spaced substantially rigid plates offset with respect to each other and supported by means of flexure members extending therebetween. A strain gauge is carried between the plates. In one embodiment a flexure member carries the strain gauge means. Electrical bridge circuitry coupled to the strain gauge supplies a digital display of the weight supported on the top plate. In addition, one of the legs of the bridge circuitry is adjustable so as to be able to provide a representation that there is zero weight on the top plate when all weight has been removed therefrom in order to calibrate the scale.

REFERENCES:
patent: 2439146 (1948-04-01), Ruge
patent: 2499033 (1950-02-01), Oberholtzer
patent: 2666262 (1954-01-01), Ruge
patent: 3616690 (1971-11-01), Harden
patent: 3853191 (1974-12-01), Yamagiwa
patent: 3993150 (1976-11-01), Brosh
patent: 4125168 (1978-11-01), Ormond

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