Noise reduction device for impact tools

Acoustics – Sound-modifying means – Muffler – fluid conducting type

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Details

173DIG2, 181211, G10K 1104, E04B 199

Patent

active

041130499

ABSTRACT:
A noise reduction device for use with an impact tool which comprises a deformable block having a flat face and an opening therein for accepting the set of the tool, and a cylindrical housing extending from the block and sealed about the tool, with an open conduit extending from said housing.

REFERENCES:
patent: 2122517 (1938-07-01), Curtis
patent: 2136315 (1938-11-01), Pettit
patent: 2789653 (1957-04-01), Fannen
patent: 3202239 (1965-08-01), Clarke
patent: 3225861 (1965-12-01), Reynolds
patent: 3757891 (1973-09-01), Krieger

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