Vacuum producing system

Details Vacuum producing system Vacuum producing system

1975-03-04

1976-04-20

Geoghegan, Edgar W.

Power plants

Pressure fluid source and motor

Pneumatic motor with gas supply or removal device

60409, 60412, 303 12, 417223, F15B 1518

Patent

active

039509460

ABSTRACT:
A control system for a diaphragm vacuum pump comprises a vacuum sensor disposed within the vacuum chamber of a pneumatically operated device for detecting a predetermined vacuum pressure to ensure the effective operation of the device and generating an output signal therefrom. A switchover solenoid valve is disposed within the pneumatic connection between the suction port of the vacuum pump and the vacuum chamber of the device is energized in response to the output signal of the sensor to selectively open the pumping chamber of the pump to the air through the suction port and close the vacuum chamber of the device.

REFERENCES:
patent: 2142514 (1939-01-01), Jones
patent: 3006535 (1961-10-01), White

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