Muffin fan hush hood

Details Muffin fan hush hood Muffin fan hush hood

2005-10-11

2005-10-11

San Martin, Edgardo (Department: 2837)

Acoustics

Sound-modifying means

Muffler, fluid conducting type

C181S225000, C181S281000, C181S205000, C454S262000, C454S906000, C454S206000

Reexamination Certificate

active

06953104

ABSTRACT:
A low noise method and apparatus with the apparatus including a hood for mounting over an exhaust outlet duct to capture a fluid stream and then redirect the fluid stream to a fluid outlet in the hood through the use of smoothly curving duct that maintains the fluid flowing therethrough in a laminar flow condition with the inlet and outlet positioned such that there is no line of sight between the exhaust outlet duct and the fluid outlet duct in the hood.

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