| 摘要 |
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.
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