Measuring and testing – Liquid level or depth gauge
Patent
1987-03-31
1989-01-24
Cuchlinski, Jr., William A.
Measuring and testing
Liquid level or depth gauge
116276, 116227, 116270, G01F 2300, G01F 2316
Patent
active
047993839
ABSTRACT:
A gauge or indicator (20) for providing a positive on/off visual indication comprises a lens (22) and a transition mount (24) with a resilient diaphragm (32) secured therebetween to define a sealed chamber therein. The chamber is filled with an opaque liquid (34) and a contrasting plug (36) which is secured to the diaphragm (32) and movable therewith responsive to an actuator stem (38) between an "off" position obscured by the liquid and an "on" position wherein the plug is visible behind the lens (22) upon displacement of the liquid.
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Johnson Lenard W.
Johnson Thomas C.
Cuchlinski Jr. William A.
LTJ Enterprises, Inc.
Will Thomas B.
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