Fin-stabilized mortar grenade

Details Fin-stabilized mortar grenade Fin-stabilized mortar grenade

1980-09-08

1983-11-08

Tudor, Harold J.

Ammunition and explosives

Projectiles

Composite

102372, 102473, F42B 3100

Patent

active

044135670

ABSTRACT:
A fin-stabilized mortar grenade has an ogival shell body, a tail tube with finned controlling surfaces. The shell body has at least one annular groove located with the limits of the caliber diameter zone. A spreadable sealing ring is disposed in the annular groove. The sealing ring has an edge bevel located at the edge facing the shell body at the bottom of the annular groove. The bevel edge configuration provides a mechanism by which the force of propellant gases enhances the radial spreading of the sealing ring outwardly against the inside surface of the barrel from which the mortar grenade is fired.

REFERENCES:
patent: 1861522 (1932-06-01), Brandt
patent: 3143074 (1964-04-01), Jasse
patent: 3613596 (1971-10-01), Walde
patent: 3687079 (1972-08-01), Scollins
patent: 3731627 (1973-05-01), Donner

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