US PATENT SUBCLASS 102 / 275.1
.~ Fuse cord (e.g., blasting cord)

Current as of: June, 1999
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102 /   HD   AMMUNITION AND EXPLOSIVES

200  DF  IGNITING DEVICES AND SYSTEMS {15}
275.1.~ Fuse cord (e.g., blasting cord) {7}
275.2  DF  .~.~> With one-way connector or arrangement
275.3  DF  .~.~> With combustible time-delay cord connection means
275.4  DF  .~.~> To or from connector having booster charge
275.5  DF  .~.~> With explosive charge
275.6  DF  .~.~> With igniting means
275.7  DF  .~.~> With cord holding device to couple cords
275.8  DF  .~.~> Detonator cord

DEFINITION

Classification: 102/275.1

Fuse cord (e.g., blasting cord):

(under subclass 200) Subject matter for setting off explosive or thermic charges which includes an indefinite length of flexible material including a combustible substance along the length of the material which substance when ignited or detonated causes the ignition or detonation to travel the length of the combustible substance to transfer the ignition or detonation to an explosive or thermic charge.

(1) Note. The term "indefinite length" includes cords, ropes, tapes, and tubes.

(2) Note. The term "combustible" includes burning, deflagrating, and detonating.

(3) Note. Included are safety fuses, igniter cords, timing fuses, and detonator cords.

(4) Note. Included are connectors, per se, which join fuse cords together to form an explosive circuit to fire a main charge.

SEE OR SEARCH THIS CLASS, SUBCLASS:

200, for protective covers for a blasting cap joined to a fuse.

277.1+, for powder trains, fixed or variable. SEE OR SEARCH CLASS

86, Ammunition and Explosive-Charge Making,

1, for methods and apparatus for making fuse cords.

149, Explosive and Thermic Compositions or Charges,

71+, for a composition having a nitrogen and oxygen containing salt, carbon, and sulfur.