Patent ID: 6403873
Filing Date: 2002-06-11
Classification: F42B

Abstract:
A joint band assembly comprising:a pair of essentially semicircular bands arranged in a ring shape with adjacent ends being separated from each other, each band having a pair of parallel lip portions inwardly radially extending therefrom; and a pair of electro-explosive devices each being connected between said adjacent ends of said bands, each of said devices having a tubular body portion containing an explosive charge adjacent an annular segment of said tubular body portion, said annular segment having reduced wall thickness as compared to the wall thickness of said tubular body portion; wherein said annular segment is rupturable by detonation of said explosive charge separating said tubular body portion and further separating said semicircular bands, said explosive charge being capable of detonation by a signal fed to said explosive charge over an interconnected lead; each said electro-explosive device further comprising: a shoulder positioned at one end of said tubular body portion; a retaining ring positioned at the other end of said tubular body portion; a spring compressed between said shoulder and said retaining ring on said tubular body portion, said spring extending across said annular segment to urge separation of said body portion; and a shackle connected to one end of said tubular body portion having arms provided with aligned parts of a lateral bore extending therethrough, said tubular body portion having a threaded bore at its other end.