Fluid level switch

Details Fluid level switch Fluid level switch

2007-03-15

2008-09-02

Friedhofer, Michael A (Department: 2832)

Electricity: circuit makers and breakers

Float

Float and pressure

C200S061210

Reexamination Certificate

active

07420134

ABSTRACT:
The present invention provides a float level switch featuring a housing; an actuator shaft arranged in the housing; and a low force shaft seal assembly arranged between the actuator shaft and the housing, having a combination of disks or seals, one being made of a semi-rigid lubricious material, for maintaining a watertight seal with a substantially reduced rotational force or friction on the actuator shaft than a conventional O-ring.

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