Percussion core gun construction and cable arrangement

Details Percussion core gun construction and cable arrangement Percussion core gun construction and cable arrangement

1990-02-08

1990-12-25

Britts, Ramon S.

Boring or penetrating the earth

Boring with explosion in inaccessible hole

Firing control mechanically actuated in bore

175 58, E21B 4904

Patent

active

049795767

ABSTRACT:
An elongate gun assembly with multiple gun chambers is assembled with locking keys holdinhg several chambers in place. In each, a bullet with bottom is placed adjacent to an explosive charge. An elongate cable having two end loops connects with the assembly and passes through the bullet. The cable is anchored on the bullet, and the two ends are unequal in length. They enable retrieval after firing. A method of cable coiling and retrieval is set out.

REFERENCES:
patent: 3517756 (1970-06-01), Goss
patent: 4280568 (1981-07-01), McPhee et al.
patent: 4569403 (1986-02-01), Barrett
patent: 4702327 (1987-10-01), Barrett
patent: 4750570 (1988-06-01), Barrett
patent: 4827823 (1989-05-01), Barrett

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