Weighing scales – Self-positioning – Electrical current generating or modifying
Patent
1992-04-03
1994-08-09
Miller, Jr., George H.
Weighing scales
Self-positioning
Electrical current generating or modifying
177229, 338 6, 73862627, G01G 314, G01G 308, G01B 716, G01L 122
Patent
active
053368541
ABSTRACT:
A load cell device includes a load cell structure formed of a suitable metal and including vertically spaced apart, generally parallel horizontal elements integrally formed with longitudinally spaced apart, generally parallel vertical elements. Flexures interconnect each horizontal element with the vertical elements. A bending beam extends between and is interconnected with the horizontal or vertical elements. When a load is applied vertically and perpendicularly to one of the horizontal elements, the load cell structure will elastically deform as a parallelogram to thereby transfer shear force to the bending beam to cause shear-induced bending of the latter. Strain gages or frequency resonator crystal elements sense the shear-induced bending and are embodied in electronic circuitry which produces an output signal caused by deformation of the bending beam. The electronic circuitry is operable to convert the output signal to a perceptive force readout.
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Miller Jr. George H.
Weigh-Tronix Inc.
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