Patent ID: 6622819
Filing Date: 2003-09-23
Classification: F15B

Abstract:
A sound attenuator for pneumatic exhaust comprising:a body having an open end and an inner cavity defined by an inner wall; an inlet port provided in said body adapted to establish fluid communication between a source of pneumatic exhaust and said inner cavity; a cap connected to said body to cover said open end; at least one exit port in fluid communication with said inner cavity; a plurality of baffles arranged within said inner cavity so as to define a series of sequential closed chambers between said inlet port and said exit port, each of said baffles having a periphery in contact with said inner wall, said baffles being adapted to flex under a predetermined pneumatic pressure load to permit said pneumatic exhaust to flow between said periphery and said inner wall; and a deflector proximal to said exit port, said deflector redirecting the flow of pneumatic exhaust at least 90Â°.