Ammunition and explosives – Igniting devices and systems
Patent
1977-11-22
1980-06-10
Jordan, Charles T.
Ammunition and explosives
Igniting devices and systems
F42B 508
Patent
active
042067073
ABSTRACT:
Apparatus for protecting the primers of electrically ignitable ammunition from accidental firing due to electrostatic charge build up and electromagnetic radiation. In one arrangement, the insulation between the primer cap and the metal case of the ammunition round is short-circuited with a conductive coating which covers the primer and base of the round. In a second arrangement, a conductive coating is used in the same fashion, but it is applied over a previously applied dot of non-conductive paint which covers a small area encompassing the primer and adjacent portion of the cartridge casing. Still another arrangement utilizes a circular metal foil affixed across the base of the casing with conductive cement that is applied only along the outer periphery. If desired, the metal foil may be supported on a protective layer of Mylar or the like.
REFERENCES:
patent: 2658451 (1953-11-01), Horne
patent: 2887054 (1959-05-01), Bryan
patent: 2974590 (1961-03-01), Ramer
patent: 3009419 (1961-11-01), Clay, Jr. et al.
patent: 3019732 (1962-02-01), Kaspul
patent: 3090308 (1963-05-01), Paschoud
patent: 3094932 (1963-06-01), Greenlees
patent: 3180262 (1965-04-01), Talley et al.
patent: 3333538 (1967-08-01), Schnettler
Bissell Henry M.
General Dynamics Corportation
Johnson Edward B.
Jordan Charles T.
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