Vacuum pressure monitoring system

Details Vacuum pressure monitoring system Vacuum pressure monitoring system

1989-02-02

1991-02-12

Tanner, Harry B.

Refrigeration

With indicator or tester

Operatively correlated with automatic control

62129, 62158, 340626, 73749, F25B 4900, G01L 900

Patent

active

049914049

ABSTRACT:
A vacuum pressure monitoring system includes a mercury manometer in communication with a vacuum line from an apparatus operating under high vacuum (approx. 0.25 in. Hg). A proximity sensor targets the height of the Hg. Incremental changes in the height of the Hg are detectable by the proximity sensor which triggers safety control components for alerting personnel and for protecting the apparatus.

REFERENCES:
patent: 2475069 (1949-07-01), Wood
patent: 2714168 (1955-07-01), Hencke et al.
patent: 3312081 (1967-04-01), Berger et al.
patent: 3611811 (1971-10-01), Lissau
patent: 3707851 (1973-01-01), McAshan
patent: 4462259 (1984-07-01), Stoltman et al.
patent: 4616215 (1986-10-01), Maddalena
patent: 4631960 (1986-12-01), Wogerbauer
patent: 4673827 (1987-06-01), Sommer
Turck-High quality, solid state proximity sensors, switches and control systems (catalog) TPS 1-5/82.
Airserco U-Tube Manometers (Bulletin Nos. 4023, 4024) Model 2Z766B.
Air Line Mini-Filter (Installation Instructions & Parts Manual) Daytin Electric Mfg. Co.

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