Detonating cap assembly and connecting bushing

Details Detonating cap assembly and connecting bushing Detonating cap assembly and connecting bushing

1975-07-30

1976-09-21

Pendegrass, Verlin R.

Ammunition and explosives

Igniting devices and systems

102 27R, F42B 310

Patent

active

039812405

ABSTRACT:
A detonating cap assembly is provided with a fuse-retaining bushing for protecting the charge within the cap from accidental ignition by static charges accumulating on the fuse. The bushing is an elongated semi-conductive plastic member slidably received within the shell of the cap and having a longitudinally extending axial bore for receiving the fuse and providing a stand-off from the charge within the cap. The bushing incorporates a thin rupturable membrane at its innermost end within the stand-off and a side notch adjacent the membrane forming a shunt path extending laterally outwardly from the bore toward said shell for diverting static charge from the fuse toward the shell of the cap.

REFERENCES:
patent: 2878752 (1959-03-01), Johnson et al.
patent: 3180263 (1965-04-01), Williams, Jr.
patent: 3371607 (1968-03-01), Olsson
patent: 3817181 (1974-06-01), Persson

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