Load cell having reduced sensitivity to non-symmetrical beam loa

Details Load cell having reduced sensitivity to non-symmetrical beam loa Load cell having reduced sensitivity to non-symmetrical beam loa

1993-10-20

1997-02-04

Gellner, Michael L.

Weighing scales

Structural installation

Vehicle

177187, 177DIG9, 384596, 248582, G01G 1908, G01G 2110, G01G 2306

Patent

active

056001045

ABSTRACT:
A load cell having a measurement beam and a pivotal support for either coupling a load to the beam or supporting opposite ends of the beam. In one embodiment, opposite ends of a beam are secured to the upper surface of a frame, and the load is applied to the upper surface of the beam at its mid-point through a load applying member and a sphere positioned between the load applying member and the beam. Bolts positioned symmetrically about the sphere pass loosely through the load applying member and are threaded into the beam. The bolts maintain the sphere in contact with the load applying member and beam while allowing relative angular movement between the beam and the load applying member. In another embodiment of load cell, opposite ends of a beam are supported on a frame through respective, generally spherical members, and the load is applied to the center of the beam.

REFERENCES:
patent: 2472047 (1949-05-01), Ruge
patent: 2995034 (1961-08-01), Boiten
patent: 3279550 (1966-10-01), Kersten
patent: 3284749 (1966-11-01), Fouretier
patent: 4020911 (1977-05-01), English et al.
patent: 4560017 (1985-12-01), Hood
patent: 4666003 (1987-05-01), Reichow
patent: 4744254 (1988-05-01), Barten
patent: 4921059 (1990-05-01), Woodle IV et al.
patent: 5111896 (1992-05-01), Porcari et al.
patent: 5419210 (1995-05-01), Haker
Wood, U.K. Patent Application GB 2,220,758 A, Jan. 1990.

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