Visually and mechanically testable submersible composite

Details Visually and mechanically testable submersible composite Visually and mechanically testable submersible composite

1983-11-02

1985-06-04

Pellinen, A. D.

Electricity: circuit makers and breakers

Float

Float and pressure

73 40, 116DIG8, 2003021, 340605, H01H 3518

Patent

active

045216525

ABSTRACT:
A visually and mechanically testable float switch composite is presented. The composite had a casing having one opening into a switch cavity containing a switch having leads potted to the outside. A float is coupled through the opening by coupling means to mechanically actuate the switch. The opening is closed by a bearing and bearing cap surrounded by and sealed by an elastomeric boot. Closing of the cap increases pressure on the fluid in the switch cavity thereby causing the boot to expand like a balloon thereby permitting visual or mechanical testing since the boot remains expanded if there is no leak. In like manner, any submersible component may be made visually and mechanically testable by inserting a cap thereby increasing the internal pressure and monitoring a balloon like expandable boot to determine whether the increase in pressure is maintained.

REFERENCES:
patent: 843276 (1907-02-01), Irish
patent: 2534830 (1950-12-01), Philo

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