Pyrotechnic device for producing material jets at very high spee

Details Pyrotechnic device for producing material jets at very high spee Pyrotechnic device for producing material jets at very high spee

1991-09-12

1992-10-27

Brown, David H.

Ammunition and explosives

Blasting

Detonation wave modifying

102307, 102701, F42B 1028

Patent

active

051591529

ABSTRACT:
The invention makes it possible to produce a large number of jets of material at very high speeds from different surfaces. The device essentially comprises a detonator initiating an explosive charge by causing a detonation shock wave, which leaves the explosive charge in order to simultaneously initiate all the points of the entrance surface of a projectile. A cavity is made in the projectile in order to bring about the formation of a filiform jet in accordance with the vertical axis during the ejection of the projectile. An intermediate projectile can be provided between the explosive charge and the projectile. Different shapes of cavities and projectiles makes it possible to modulate the production of the jets as a function of the form and nature of the targets to be reached. Application is possible of the invention to making openings and to dismantling of various structures, to oil drilling operations and to geothermics.

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