Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent
1980-01-21
1981-10-13
Hix, L. T.
Acoustics
Sound-modifying means
Muffler, fluid conducting type
181272, 181273, 181275, F01N 108, F01N 102
Patent
active
042943302
ABSTRACT:
A muffler for use with machines such as pneumatic drills consists of an elastomeric housing divided into an admission chamber and a series of muffler chambers. Within the housing are an inlet conduit communicating with the admission chamber and each muffler chamber, an exhaust conduit communicating with each muffler chamber as well as with a tail pipe outside the housing, and a Helmholtz resonator communicating with the admission chamber.
REFERENCES:
patent: 2274460 (1942-02-01), Raven
patent: 2857414 (1958-10-01), Bourne
patent: 3181647 (1964-05-01), Schomburg
patent: 3365022 (1971-01-01), Jedd
patent: 3554316 (1968-01-01), Barber et al.
patent: 3815705 (1974-06-01), Bennett
patent: 4010819 (1977-03-01), Ekstrom et al.
patent: 4079809 (1978-03-01), Visnapuu et al.
patent: 4079810 (1978-03-01), Prather et al.
Baldwin Stanley L.
Embleton Tony F. W.
Hampton Vernon
Hix L. T,.
Inco Limited
Kenny Raymond J.
MacQueen Ewan C.
Messulam Lewis
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