Exhaust muffler

Details Exhaust muffler Exhaust muffler

1978-12-15

1980-01-22

Hix, L. T.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181264, 181281, F01N 110, F01N 714, F01N 718

Patent

active

041845650

ABSTRACT:
An exhaust muffler which includes a tubular metallic core having at least one layer of fiberglass around the tubular core. The core has a plurality of circumferential slots formed therethrough with the slots arrayed in spirals around the core. Each slot extends in a transverse or circumferential direction on the core, and has a width to length ratio of about 1:3 to about 1:5. A pair of spaced baffle bars are extended diametrically across the core at spaced locations along its length, and are oriented at right angles to each other in respect to the direction of extension across the longitudinal axis of the core.

REFERENCES:
patent: 2066467 (1937-01-01), Gray
patent: 2230221 (1941-02-01), Fitch
patent: 3522863 (1970-08-01), Ignoggo
patent: 3561562 (1970-02-01), Ignoggo
patent: 4129196 (1978-12-01), Everett

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