Muffler with drain holes

Details Muffler with drain holes Muffler with drain holes

1988-09-26

1989-09-12

Fuller, B. R.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181228, 181231, 181260, 181272, F01N 108, F01N 718

Patent

active

048651540

ABSTRACT:
A flat, box-like muffler formed of metal upper and lower housing sections and internal gas passage defining plates has drainage holes to allow liquid that collects on the top of the muffler or on the bottom of the lower section inside the housing to drain out of the muffler. A special sound attenuation structure comprising passages pressed in the plates and support channels in the housing sections is shown.

REFERENCES:
patent: 2241768 (1941-05-01), Derener
patent: 2437446 (1988-03-01), Stephens
patent: 2484816 (1949-10-01), Culbert
patent: 3036654 (1962-05-01), Powers
patent: 3283847 (1966-11-01), Kerns et al.
patent: 3638756 (1972-01-01), Thiele
patent: 4527659 (1985-07-01), Harrington
patent: 4759423 (1988-07-01), Harwood et al.

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