Back to results
US 4,392,412 AGranted
Gaseous blast reducer
AssigneeThe United States of America as represented by the Secretary of the Army
InventorsEdward M. Schmidt, George D. Kahl
Life of this patent
Estimating the term…
Abstract
A gaseous blast reducer employs a membrane which is effective to contain a ass of gas having properties different from air, in the vicinity of the source of the blast. The blast is forced to propagate through the mass of gas before propagating in the air. An acoustic mismatch caused by the difference in properties between the gas and air reduces or attenuates the blast.
Claims5
Apparatus for reducing blast from an explosive source which includes:
- a gun barrel having a muzzle;
- means for supplying a gas, which includes a pressurized container containing said gas;
- means for containing said gas in the vicinity of said source whereby the blast is forced to propagate through said gas before reaching ambient air which includes:
- an inflatable membrane;
- and
- means for securing said inflatable membrane over said muzzle;
- and
- means for releasing said gas into said means for containing.
5 more elements
Apparatus for reducing blast from an explosive source which includes:
- a rocket launcher having an outlet;
- means for supplying a gas which includes a pressurized container containing said gas;
- means for containing said gas in the vicinity of said source whereby the blast is forced to propogate through said gas before reaching ambient air which includes:
- an inflatable membrane;
- and
- means for securing said inflatable membrane over said outlet;
- and
- means for releasing said gas into said means for containing said gas.
5 more elements
Dependencies are inferred from the claim text.