G - Physics – 01 – V
Patent
G - Physics
01
V
349/53
G01V 1/137 (2006.01)
Patent
CA 1179764
ABSTRACT An impulse noise generator having means to store a volume of compressed gas and suddenly release same to eject through a nozzle comprising a body having a hollow stepped piston arranged to move forward by gas pressure admitted through an inlet when a spring- loaded valve is closed and including a pressure chamber to which gas is admitted through the valve when the piston is at the forward end of its stroke, and gas release means to cause the piston to move back rapidly to exhaust the gas from the chamber to the nozzle.
375593
Commonwealth Of Australia (the)
Ridout & Maybee Llp
LandOfFree
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