Signals and indicators – Indicators – Magnetically actuated
Patent
1984-02-29
1985-11-12
Yasich, Daniel M.
Signals and indicators
Indicators
Magnetically actuated
73308, 116228, 220 93, 220222, B65D 8842, G01F 2374
Patent
active
045520909
ABSTRACT:
A bulk material container comprising a shell made from suitable material, such as aluminum or stainless steel. Disposed within the shell is a floatable rigid follower. The vertical position of the floatable rigid follower varies with the level of flowable bulk material stored in the shell. The rigid follower comprises axially aligned, juxtaposed rigid sections with a flexible wiper secured therebetween. A permanent magnet is carried by the rigid follower for movement therewith and means responsive to a magnetic field are attached to the exterior of the shell to detect the height of the permanent magnet. Indicating means are responsive to the operation of the means responsive to a magnetic field for indicating the level of the rigid follower. In a modification of the bulk material container, the wiper is replaced by an inflatable seal and the floatable rigid follower provides a selectively positionable cover for the bulk material container.
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Fabricated Metals, Inc.
Wiseman Jack M.
Yasich Daniel M.
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