RF-insensitive squib

Details RF-insensitive squib RF-insensitive squib

1979-06-18

1981-04-14

Nelson, Peter A.

Ammunition and explosives

Igniting devices and systems

102 28EB, 102203, F42C 1906

Patent

active

042612632

ABSTRACT:
Novel structure within the squib provides an internal spark gap for discharge of radio-frequency as well as static electricity, and isolation of the spark gap from the pyrotechnic charge. The preferred structure is in the form of a cup mounted inside the squib case and containing the pyrotechnic material; the bottom of the cup is partly cut away to permit the igniting filament to contact the pyrotechnic material, while the remainder of the cup bottom is welded to a terminal lead. The top of the cup is flanged outward toward the inside of the case, forming an annular spark gap. This invention is particularly advantageous in a two-pin squib with an electrically floating case, but under certain circumstances is also beneficial in a single-pin or "coaxial" squib.

REFERENCES:
patent: 3100447 (1963-08-01), Betts
patent: 3257946 (1966-06-01), Tognola
patent: 3524408 (1970-08-01), Pierson
patent: 3572247 (1971-03-01), Warshall
patent: 3756154 (1973-09-01), Snyder
patent: 3783787 (1974-01-01), Thornley
patent: 3867885 (1975-02-01), Gawlick et al.
patent: 3971320 (1976-07-01), Lee
patent: 4061088 (1977-12-01), Ueda

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