Measuring and testing – Volumetric content measuring
Patent
1975-09-24
1976-12-28
Ruehl, Charles A.
Measuring and testing
Volumetric content measuring
73143, G01L 126
Patent
active
039994279
ABSTRACT:
A load sensing unit for load indicating apparatus, the sensing unit comprising a hydraulic load cell and an electronic load cell connected in stacked relation between opposed members of the apparatus capable of relative movements under applied load forces, and wherein means are provided to operably selectively bypass the load forces with respect to each of said load cells, in order to operatively inactivate one of the load cells, and hold it in reserve as a back-up cell which is susceptible of immediate connection for the active operative other load cell.
REFERENCES:
patent: 2472047 (1949-05-01), Ruge
patent: 3060732 (1962-10-01), Corry
patent: 3120754 (1964-02-01), Lebow
patent: 3258300 (1966-06-01), Saunders
patent: 3263497 (1966-08-01), Leiber
patent: 3472069 (1969-10-01), Webb
Decker Elmer L.
Moon James
Decker Engineering Corporation
Ruehl Charles A.
Weilein Paul A.
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