Method and apparatus for preventing lubricant flow from a vacuum

Details Method and apparatus for preventing lubricant flow from a vacuum Method and apparatus for preventing lubricant flow from a vacuum

1981-11-16

1983-07-05

Lacey, David L.

Gas separation

Means within gas stream for conducting concentrate to collector

55 3, 55100, 55385R, 55138, 55152, 141 65, 361226, 417 49, B03C 900, B65B 3104

Patent

active

043916147

ABSTRACT:
A method of trapping lubricant in a vacuum system and an assembly for performing same wherein a vacuum chamber has an outlet duct to a vacuum source to establish a gas flow path from the vacuum chamber to the vacuum source. Lubricant vapors from the vacuum source such as a vacuum pump are prevented from entering the vacuum chamber in accordance with the instant invention by establishing an electric field and subjecting the lubricant entering the vacuum outlet duct from the vacuum source to the electric field to electrically charge the lubricant and electrically attract the lubricant back toward the vacuum source. A magnetic field is also established between the electrodes to further urge the charged lubricant back toward the vacuum source. In this manner the lubricant is prevented or substantially prevented from entering and contaminating the vacuum chamber.

REFERENCES:
patent: 2004352 (1935-06-01), Simon
patent: 3555818 (1971-01-01), Vlier
patent: 3747299 (1973-07-01), Chiang
patent: 3786130 (1974-01-01), Baker
patent: 3957462 (1976-05-01), Schminke et al.
patent: 4056368 (1977-11-01), Rozmus
patent: 4108615 (1978-08-01), Satterthwaite

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