Leaf spring weighing scale

Details Leaf spring weighing scale Leaf spring weighing scale

1976-04-26

1977-07-26

Miller, Jr., George H.

Weighing scales

Self-positioning

Spring

177DIG9, G01G 308

Patent

active

040376753

ABSTRACT:
A leaf spring weighing scale is described which uses load cells to measure the deflection of the load support. The load cells are arranged in tandem. One of the load cells is a low range deflection reading cell, and the other load cell is a high range measuring cell. Each of the load cells is bottomed before it reaches its deflection limit to prevent damage to the cell. A point contact connection between the load support and the load cells eliminates errors caused by lateral forces, and errors due to the non-linearities in the load support deflection. The leaf springs of the scale are constructed as thin strips to eliminate the effects of "oil canning", and to reduce structural and assembly inaccuracies.

REFERENCES:
patent: 2703980 (1955-03-01), Tell
patent: 2802660 (1957-08-01), Williams, Jr.
patent: 3667560 (1972-06-01), Cooke
patent: 3869007 (1975-03-01), Haggstrom et al.
patent: 3891041 (1975-06-01), Hall et al.

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