Time-delayed gun bore evacuator
AssigneeThe United States of America as represented by the Secretary of the Army
InventorDaniel L. Cler
Life of this patent
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Abstract
A bore evacuator for a gun tube may include a time-delayed discharge valve. The time-delayed discharge valve may open substantially simultaneously with the opening of the breech of the gun tube. Gas discharged from the bore evacuator may evacuate the bore of the gun tube. The time delay of the time-delayed discharge valve may be activated by gas pressure in the bore evacuator. The bore evacuator may include a pressure-regulating valve for regulating the maximum pressure in the bore evacuator.
Claims15
A bore evacuator for a gun tube having a bore, comprising:
- a reservoir;
- at least one intake port between the reservoir and the bore of the gun tube;
- a one-way valve disposed in the at least one intake port, the one-way valve allowing gas flow only from the bore of the gun tube to the reservoir;
- at least one discharge port between the reservoir and the bore of the gun tube;
- and
- a one-way time-delayed valve disposed in the at least one discharge port, the one-way time-delayed valve allowing gas flow only from the reservoir to the bore of the gun tube, wherein the one-way time-delayed valve opens substantially simultaneously as a breech of the gun tube opens.
A bore evacuator for a gun tube having a bore, comprising:
- a three-chambered reservoir including a high-pressure chamber, a low-pressure chamber, and a discharge plenum;
- at least one intake port between the high-pressure chamber and the bore of the gun tube;
- a one-way valve that only allows gas flow from the high-pressure chamber to the low-pressure chamber;
- at least one discharge port between the discharge plenum and the bore of the gun tube;
- and
- a one-way time-delayed valve that only allows gas flow from the low-pressure chamber to the discharge plenum, wherein the one-way time-delayed valve opens substantially simultaneously as a breech of the gun tube opens.
Dependencies are inferred from the claim text.