Patent ID: 9333116
Filing Date: 2016-05-10
CPC Classification: A61F,G10K,H03G

Claim Text:
1. A variable control sound attenuator, comprising: a housing having a top housing and a bottom housing, the top housing being rotatable relative to and engaged with the bottom housing; the top housing being hollow and cylindrical and containing a top housing passageway therein, said top housing passageway extending longitudinally through said top housing and being radially offset from the center of the top housing; the bottom housing being hollow and cylindrical and containing a bottom housing passageway therein, said bottom housing passageway extending longitudinally through said bottom housing and being radially offset from the center of the bottom housing; rotation of the top housing and bottom housing providing a variable alignment between the top housing passageway and the bottom housing passageway thereby providing a variable control of sound transmission through the sound attenuator, wherein rotation of the top housing and bottom housing to align the top housing passageway and the bottom housing passageway provides an open passageway permitting sound transmission therethrough, and further rotation of the top housing and bottom housing to not align the top housing passageway and the bottom housing passageway provides a closed passageway blocking sound transmission therethrough.