Bullet firing mechanism with retrieval cable

Details Bullet firing mechanism with retrieval cable Bullet firing mechanism with retrieval cable

1987-12-17

1989-05-09

Brown, David H.

Ordnance

Well perforators

175 4, E21B 4904

Patent

active

048278238

ABSTRACT:
For use in a gun supporting a bullet for obtaining a core sample therein wherein the bullet is received in a chamber in the gun, a retrieval cable connecting between a pair of studs for threading to the bullet and gun, the cable being coiled to enable the cable and heads of the stud to be received in a sacrificial plastic cylindrical housing. An electrical flow path is also provided by means of a conductor optionally positioned adjacent an exploding cap and extending to an electrically isolated ground terminal. The ground terminal connects with ground through a compressed spring extending through the housing for contact against the ground.

REFERENCES:
patent: 3272268 (1966-09-01), Tricon et al.
patent: 3517756 (1970-06-01), Goss
patent: 4339947 (1982-07-01), Wiley
patent: 4750570 (1988-06-01), Barrett

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