Noise-suppressing air intake for ventilation fans

Details Noise-suppressing air intake for ventilation fans Noise-suppressing air intake for ventilation fans

1986-12-19

1988-04-12

Fuller, Benjamin R.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181264, 181282, F01N 700

Patent

active

047368160

ABSTRACT:
A noise-suppressing air intake for a ventilation fan comprising a base having at least one sidewall and an open top and a cap positioned over the base with a portion of the cap being aligned with a portion of the base, and another portion of the cap overlapping a portion of the sidewall of the base to define a downwardly-facing, shielded air inlet therebetween. An air outlet is located in the aligned portions of the cap and base.

REFERENCES:
patent: 1380473 (1921-06-01), Guarniery
patent: 4596921 (1986-06-01), Hersh et al.

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