Cap-shaped cover for hollow-charge mines

Details Cap-shaped cover for hollow-charge mines Cap-shaped cover for hollow-charge mines

1984-08-21

1986-04-01

Jordan, Charles T.

Ammunition and explosives

Mines

F42B 2324

Patent

active

045790582

ABSTRACT:
A cap-shaped cover for hollow-charge mines is adapted to form a hollow cavity adjacent to a portion of the mine. The cover, in its initial position, is in a folded, collapsed, introverted or the like closed condition and in its operational position, the cover is extended by a compression spring to assume a shell-like, hemispherical, or open configuration that defines the cavity. The cover includes at least one ventilating device for venting of the closed cover, a flexible body portion and the compression spring. The spring is formed of at least two separate, identical parts. These parts are arranged in the cover in such a way that the compression spring is symmetrical in all vertical section planes. The lead angle of a central turn section of each individual part of the compression spring, in the operational position of the compression spring, is 15.degree.-45.degree., at least in the zone adjoining an outer turn section. Preferably, an inner turn section of the compression spring is held in a continuous groove of the covering member.

REFERENCES:
patent: 4304186 (1981-12-01), Fischer et al.
patent: 4368671 (1983-01-01), Weber et al.

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