Weighing scales – Self-positioning – Spring
Patent
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.
Sette Paul R.
Storace Anthony
Miller Jr. George H.
Pitney-Bowes Inc.
Salzman Robert S.
Scribner Albert W.
Soltow, Jr. William D.
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