(under subclass 200) Subject matter which includes methods and apparatus involving nonelectric devices for setting off a larger explosive or thermic charge not classified elsewhere in the class.
(1) Note. Here are casings containing an ignitor or a primer charge with no means to ignite or detonate the ignitor or detonator charge.
(2) Note. Here are electric blasting caps with a casing, bridge plug, and an explosive or thermic charge with no electrical features or ignitor claimed.
(3) Note. Casings, per se, for a fuse are here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
202.1, for accidental fuse ignition prevention means.
202.5, for electric primers or ignitors.
204, for percussive primers or ignitors. 205, for heat, friction, or chemical primers or ignitors.
