Abstract: A blast mitigation device having a first inner bag intended to house an explosive and further including a second outer bag to freely contain the first bag. Structural connections between the first and second bag are absent. The first and second bags each include a flexible tubular body made of textile material, provided with at least one openable mouth at one end of the flexible tubular body. The mouth is closable by a zip fastener or zipper and wherein at least the second bag includes a closure belt or strap arranged astride the openable mouth, such that in the assembled and use condition the zip fastener or zipper is wound inside a roll of an end portion of the body of the corresponding bag. The roll is kept in position by the at least one strap.

Abstract: A blast mitigation device having a first inner bag intended to house an explosive and further including a second outer bag to freely contain the first bag. Structural connections between the first and second bag are absent. The first and second bags each include a flexible tubular body made of textile material, provided with at least one openable mouth at one end of the flexible tubular body. The mouth is closable by a zip fastener or zipper and wherein at least the second bag includes a closure belt or strap arranged astride the openable mouth, such that in the assembled and use condition the zip fastener or zipper is wound inside a roll of an end portion of the body of the corresponding bag. The roll is kept in position by the at least one strap.

Abstract: A linear profile, which is self-sealing by mechanical engagement comprising an elastic element (100), engagement elements (20) and a slider (31); the elastic element (100) consists of a pair of seals (2), specular or preferably complementary with hollows (15) facing in opposite directions; each seal (2) having a honeycombed rib (14) in which cavities (13) are made for insertion of the engagement elements (20); the slider (31) is able to abut against the engagement elements (20) to bring about closure of the seals (2).

Abstract: A zipper has its teeth formed by two interfitting plastic tooth elements one of which has pointed prongs fitting into matching holes in the other tooth element and extending through a fabric mounting strip having a bead clamped between the tooth elements of each zipper tooth. The tooth elements also interfit outwardly of the mounting strip by way of a land and matching recess, and an additional prong and matching hole. The interfitting tooth elements are welded together at the interfit of the prongs and of the land. The zipper is locked in closed position at each end by a locking unit which has a latch with locking pawls which fit between adjoining zipper teeth when the latch is swung into locking position after sliding the locking unit onto an end portion of the zipper.