Silencer for pneumatic equipment

Details Silencer for pneumatic equipment Silencer for pneumatic equipment

1982-03-09

1984-01-10

Fuller, Benjamin R.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181230, 181243, 55276, F01N 124

Patent

active

044248830

ABSTRACT:
Disclosed herein is a silencer constituted by a casing, open at the lower extremity made to communicate with the source of compressed gases, and closed at the top by a cover, inside which are placed, from the bottom upwards, a first element, a filter and a second element which, jointly with the inner surface of the casing, define a first, a second and a third expansion chamber, respectively, for the compressed gases.
The first expansion chamber communicates with the open extremity of the casing, the second contains the aforementioned filter, while the third, via a slit made in the cover, communicates with the outside. The first and second expansion chamber are inter-communicating because of through holes drilled in the first element, and likewise the second and third expansion chamber are inter-communicating because of through holes drilled in the second element.

REFERENCES:
patent: 226905 (1880-04-01), Curie
patent: 3889776 (1975-06-01), Postma
patent: 4109753 (1978-08-01), Lyman

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