Ammunition and explosives – Miscellaneous
Patent
1991-07-22
1992-06-30
Brown, David H.
Ammunition and explosives
Miscellaneous
73167, F41A 3500, G01L 514
Patent
active
051253437
ABSTRACT:
A decelerator device for stopping a high energy projectile, including an elongated tube of a predetermined length and having an inlet and a terminal end to define an axial path for the projectile. The device includes a piston for moving on the axial path and having a cone shaped leading edge. Further included is a fluid container for filling the tube with a fluid to be displaced by movement of the piston through the tube and for collecting the displaced fluid as it is displaced. Also included in the tube are a plurality of port like slots for displacing fluid from the tube radially as the projectile enters the tube. The ports located proximate the inlet portion of the tube are of larger area, and become progressively smaller toward the terminal end. At some distance from the terminal end the tube is sealed along the remaining portion of the axial path so that the fluid will be displaced annularly past the piston in the opposite direction of piston travel to further cause the piston to decelerate to a stop within the length of the axial path.
REFERENCES:
patent: 2356992 (1944-08-01), Gilson
patent: 2813422 (1957-11-01), Schuessler
patent: 3217534 (1965-11-01), Bingham et al.
patent: 3678745 (1972-07-01), Teng
patent: 3940981 (1976-03-01), Coney et al.
Black John W.
Domen John K.
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