Muffler for intermittent blasts of air from pneumatic tools, val

Acoustics – Auditorium

Patent

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Details

55276, F01N 306

Patent

active

040334287

ABSTRACT:
A muffler for pneumatic tools in which the lubricating oil from mist lubrication and the like is separated from the used air by means of the air first being led through a porous filler and thereafter allowed to pass through a labyrinth path so as to alter the direction of flow and so as to expand. The oil is separated by means of the air striking against guide means, said oil being allowed to trickle down to the bottom of the muffler where it is drained through a tap or faucet. The air is then led through porous filters so as to remove the last traces of oil so as to be able to be discharged freely into the atmosphere.

REFERENCES:
patent: 992344 (1911-05-01), Donohue
patent: 2325905 (1943-08-01), Caulfield
patent: 2419664 (1947-04-01), Tabbert
patent: 3016108 (1962-01-01), Myddelton
patent: 3130812 (1964-04-01), Hubrich
patent: 3687225 (1972-08-01), Nelson

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