Empty hopper detector

Details Empty hopper detector Empty hopper detector

1978-11-03

1980-05-06

Scherbel, David A.

Dispensing

Automatic control

Material level control

340617, 141392, F27D 300

Patent

active

042013151

ABSTRACT:
A pivotable probe arm in a batch hopper automatically indicates when the hopper is empty, and in an alternate embodiment, also automatically closes the discharge opening when the hopper is empty.

REFERENCES:
patent: 2212865 (1940-08-01), Kirk
patent: 2489498 (1949-11-01), Palmer
patent: 2902188 (1959-09-01), Tarukawa
patent: 3019310 (1962-01-01), Hoff
patent: 3368948 (1968-02-01), Meunier et al.

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