Combination pressure switch

Details Combination pressure switch Combination pressure switch

2008-07-16

2011-10-25

Luebke, Renee (Department: 2833)

Electricity: circuit makers and breakers

Fluid pressure

Flow-responsive type

C200S0830SA

Reexamination Certificate

active

08044310

ABSTRACT:
A combination switch including a pressure switch moveable between closed and open positions in response to a working pressure of a fluid, an unloader valve moveable between open and closed positions, a mechanical interconnection between the pressure switch and the unloader valve and operable to move the unloader valve in response to movement of the pressure switch, and a mechanical lever selectively operable to move the pressure switch between the closed and the open position.

REFERENCES:
patent: 3898403 (1975-08-01), Grayson et al.
patent: 5530215 (1996-06-01), Couvreur
patent: 7718907 (2010-05-01), Wildman

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