Enclosure for explosive material

Claim 1

An improved enclosure for explosive material of the type having a cylindrical container including an enclosed lower end, a sidewall sealingly secured to said lower end, a cover adapted to be sealingly secured to said sidewall with a seam to form an enclosed, sealed container, and a sleeve in encircling engagement with the container extending substantially the entire length of said sidewall, said sleeve and said sidewall including means cooperating to define at least one recess adapted to receive a detonator, and maintain said detonator in contact with said sidewall along substantially the entire length of said sidewall, wherein the improvement comprises: a depression in the upper end of said sidewall below the seam of said sidewall with said cover, extending around the circumference of said sidewall, with said seam constituting the upper boundary of said depression; and a resilient protrusion of the inner surface of said sleeve at the upper end of said sleeve, having a shape corresponding to that of said sidewall depression, and extending at least partially around the circumference of the inner surface of said sleeve, said protrusion engaging said sidewall depression, thereby enabling said sleeve to be slid onto said sidewall without axial rotation and hindering said sleeve from slipping off said sidewall.