Multi-range load cell weighing instrument

Details Multi-range load cell weighing instrument Multi-range load cell weighing instrument

1985-10-11

1986-12-30

Miller, Jr., George H.

Weighing scales

Self-positioning

Electrical current generating or modifying

177229, 7386265, G01G 314, G01G 308, G01L 122

Patent

active

046321985

ABSTRACT:
An improvement in a multi-range load cell weighing instrument of the type which has a plurality of load cells including a high weighing load cell positioned adjacent a base and a low weighing load cell positioned adjacent a tray. In the improved weighing instrument according to the invention, the load cells are located such that the center lines along the length thereof substantially coincide with the center line of the tray. Accordingly, if a partial load condition is entered wherein a load is put aside relative to the tray, a force acting to twist the load cells is weakened, resulting in reduction of the frequency of causing flickering of indication. The weighing instrument further comprises a center stopper located on a tray frame for contacting with the load cells within a range of a predetermined fixed distance in a direction perpendicular to the length of the load cells in order to prevent swinging motions of the tray in a direction for which the load cells are relatively weak to further prevent flickering of indication and also to effectively prevent an overload from being applied to the low weighing load cell.

REFERENCES:
patent: 4037675 (1977-07-01), Storace et al.
patent: 4307787 (1981-12-01), Raboud et al.
patent: 4420054 (1983-12-01), Caris

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