Double diaphragm pressure switch for a well water system

Details Double diaphragm pressure switch for a well water system Double diaphragm pressure switch for a well water system

1988-09-12

1989-09-19

Croyle, Carlton R.

Pumps

Condition responsive control of pump drive motor

Responsive to accumulation of pumped liquid in receiver

200 83J, 200 83Y, F04B 4900

Patent

active

048676454

ABSTRACT:
A switch mechanism for controlling a motor that runs a well pump. Water line pressure acts on a diaphragm to pressurize an air chamber that communicates with a pressure switch. The switch components are isolated from the water line (by the air chamber), to minimize the possiblity of switch failure due to ice formation (winter time operations) or corrosion.

REFERENCES:
patent: 2777028 (1958-01-01), Kendall et al.
patent: 3359386 (1967-12-01), Howard
patent: 3784772 (1974-01-01), Nelson
patent: 4024887 (1977-05-01), McGregor
patent: 4207030 (1980-06-01), Pearson

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