Electricity: circuit makers and breakers – Special application – Container contents level responsive
Patent
1986-07-28
1987-09-22
Pellinen, A. D.
Electricity: circuit makers and breakers
Special application
Container contents level responsive
340617, H01H 3500
Patent
active
046956859
ABSTRACT:
Apparatus for indicating the level of flowable material in a storage bin comprising a motor mounted within a protective enclosure and coupled by a shaft to a paddle disposed within the bin to engage material contained therein. When the material reaches the level of the paddle, drag on the paddle causes the motor to rotate within the enclosure and thereby to activate switches disposed within the enclosure for indicating material level. A spring is mounted between the enclosure and the motor such that the spring urges the motor to both the switch-activating and the switch-deactivating positions in turn, and must be urged over center to permit motion of the motor in either direction between such positions.
REFERENCES:
patent: 4211966 (1980-07-01), Sweet
Fleckenstein Phillip P.
Marsh Norman F.
Berwind Corporation
Ginsburg Morris
Pellinen A. D.
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