Drilling tool

Details Drilling tool Drilling tool

1988-09-19

1990-03-13

Neuder, William P.

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

279 93, 285307, 285319, 285921, 403106, 403329, 408145, E21B 1002

Patent

active

049076639

ABSTRACT:
A drilling tool is made up of a holder and a drilling member detachably connected together. One of the holder and the drilling member telescopes into the other. Resilient tab-like parts on one of the holder and the drill member engages within recesses in the other for effecting a rotatably locked connection between them. Accordingly, torque can be transmitted through the drilling tool by the tab-like parts and the recesses for effecting a drilling operation. The holder and drilling member can be disconnected without the use of any auxiliary tools.

REFERENCES:
patent: 1727563 (1929-09-01), Ross
patent: 2419901 (1947-04-01), Lake
patent: 3131766 (1964-05-01), Chancellor et al.
patent: 3773360 (1973-11-01), Timbers

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