Selective firing system

Details Selective firing system Selective firing system

1976-03-10

1977-10-04

Novosad, Stephen J.

Boring or penetrating the earth

Boring with explosion in inaccessible hole

Independent firing of plural charges

102 216, 361248, E21B 43116, E21B 43117

Patent

active

040519074

ABSTRACT:
Selective firing system for gun perforating comprising in combination a surface control, and a subsurface master sub together with a multiplicity of identical slave subs each operatively connected with a perforating charge and so interconnected that any of the slave subs may be armed and fired in any order under the control of the operator.

REFERENCES:
patent: 2369238 (1945-02-01), Kaveler et al.
patent: 2761385 (1956-09-01), Schlumberger
patent: 2871784 (1959-02-01), Blair
patent: 3312869 (1967-04-01), Werner
patent: 3327791 (1967-06-01), Harrigan, Jr.
patent: 3327792 (1967-06-01), Boop
patent: 3517758 (1970-06-01), Schuster
patent: 3717095 (1973-02-01), Vann
patent: 3768408 (1973-10-01), Hallmark
patent: 3773120 (1973-11-01), Stroud
patent: 3934514 (1976-01-01), Dawkins

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