Sight indicator

Details Sight indicator Sight indicator

1994-06-17

1996-03-12

Cuchlinski, Jr., William A.

Signals and indicators

Indicators

Valve position

116204, G01D 2100, F16K 3700

Patent

active

054977258

ABSTRACT:
A device for providing visual indication and record of the actuation of a tank vent opening the comprising a rod contacting a tank vent pallet at one end and a magnet affixed to another end of said rod, which moves in a chamber adjacent to a set of vertically positioned rotationally mounted magnetic wafers with visually distinguishable sides. The magnets all have the same polarity then the rising magnet occasioned by the opening tank vent will flip the wafers as far as the magnet travels, but will not affect the wafers when it goes down after the vent closes.

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patent: 3420103 (1969-01-01), Peschek
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patent: 3974795 (1976-08-01), Crisp
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patent: 4156872 (1979-05-01), Helwig
patent: 4195518 (1980-04-01), Fees
patent: 4457171 (1984-07-01), Gebauer
patent: 4512190 (1985-04-01), Sledmere
patent: 4651670 (1987-03-01), Silverwater

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