Patent ID: 7806228
Filing Date: 2010-10-05
Classification: E04F,F24F

Abstract:
1. A single duct silencing terminal unit comprising: a plenum surrounded by a first casing and containing an inlet duct; a silencing portion surrounded by a second casing and containing at least one baffle; wherein said plenum contains an outlet; wherein said silencing portion contains an inlet and an outlet; wherein said outlet of said plenum is directly coupled to the inlet of said silencing portion; wherein said first casing has a substantially uniform cross-sectional area throughout the length of the plenum; wherein said second casing has a substantially uniform cross-sectional area throughout the length of the silencing portion; wherein the cross-sectional area of the first casing is substantially equal to the cross-sectional area of the second casing; and wherein the distance from the outlet of said inlet duct to the inlet of said silencing portion is between about 12 inches and about 36 inches.