Tround terra-drill processes and apparatus

Details Tround terra-drill processes and apparatus Tround terra-drill processes and apparatus

1975-12-08

1977-01-25

Novosad, Stephen J.

Boring or penetrating the earth

Boring with explosion in inaccessible hole

Firing control mechanically actuated in bore

89 26, 102 23, 175 93, 175102, 175106, 175107, E21B 700

Patent

active

040046427

ABSTRACT:
Processes and apparatus in the field of Terradynamics, e. g. projectile penetration into soils and rocks, employing "open chamber" firing systems using "Trounds" (triangular rounds of ammunition). Included are salvo firings of small calibre projectiles for "shock wave" interaction drilling application of residual gun gases to actuate drill heads and/or reamers; a continuous self-contained feed system for feeding ammunition to be fired and removing and storing the used cases; remote self contained powering of the ammunition feed and storage by recoil of the gun, residual gun gases, electrical batteries, and/or combinations thereof; absorption of excess residual gun gas in an ambient environment of over 5000 psi external to the gun; and automatic clearing of the gun barrels from mud and or debris when embedded in a high pressure drilling mud external to a gun drill.

REFERENCES:
patent: 1585664 (1926-05-01), Gilman
patent: 2340966 (1944-02-01), Kitsman
patent: 2544573 (1951-03-01), Vincent
patent: 2869825 (1959-01-01), Crawford
patent: 3434380 (1962-03-01), Dardick
patent: 3446113 (1969-05-01), Dardick
patent: 3516502 (1970-06-01), Bennett et al.
patent: 3695715 (1972-10-01), Godfrey
patent: 3855931 (1974-12-01), Dardick

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