Method and apparatus for noise suppression

Details Method and apparatus for noise suppression Method and apparatus for noise suppression

1974-06-03

1977-01-04

McGehee, Travis S.

Cutting

Processes

Plural cutting steps

83169, 833563, 83701, 181 33B, B26D 700

Patent

active

040006700

ABSTRACT:
Method and apparatus for suppressing noise in machinery a having movable element and fixed element in close proximity to the movable element is disclosed. The movable element and fixed element may coact to disturb the atmosphere and produce noise. A fluid system is provided for inducing a pressure variation proximate to the movable element and fixed element to thereby reduce the level of noise.

REFERENCES:
patent: 2297368 (1942-09-01), Rippl et al.
patent: 2331230 (1943-10-01), Rippl et al.
patent: 2347046 (1944-04-01), Geiger
patent: 2632510 (1953-03-01), Doppleb
patent: 3438295 (1969-04-01), Heinz et al.
patent: 3651726 (1972-03-01), Laroche
patent: 3762256 (1973-10-01), Frantz

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