Combination noise suppressor and air filter and milking machine

Fluid handling – With means for separating solid material from the fluid – Plural separating elements

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Details

137549, 137494, 119 1444, A01J 504

Patent

active

052898482

ABSTRACT:
A combination noise suppressor and air filter fits closely around a pressure regulator for milking machines, in such tight-fitting sealed relationship that little or no air or dirt can enter except through a relatively large diameter washable air filter which can be removed and cleaned even while the milking machine is running. The air passing inwardly through such filter also passes through the bars of a cage which support the filter against collapse. A noise suppressor, formed of a laminate of rigid and soft synthetic resin, is provided, and has apertures therethrough through which air passes downwardly after entering through the air filter. After thus passing downwardly, the air is in a chamber that contains the inlet ports of the pressure regulator portion of the combination, the upper wall of the chamber having convolutions which cooperate with sound-absorbing side and bottom walls of the chamber to absorb sound that is generated when air enters into the regulator. Any sound escaping through the apertures in the suppressor is largely absorbed by a sound-absorbing wall at the upper region of the apparatus.

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patent: 3262563 (1966-07-01), Pall
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patent: 4335743 (1982-06-01), Jones
patent: 4955408 (1990-09-01), Meermoller
patent: 5038815 (1991-08-01), Palmer

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