Torque converter for use when drilling with a rotating drill...

Details Torque converter for use when drilling with a rotating drill... Torque converter for use when drilling with a rotating drill...

2006-01-16

2010-02-02

Bomar, Shane (Department: 3676)

Boring or penetrating the earth

With tool shaft detail

Axially telescoping shaft section

C175S057000

Reexamination Certificate

active

07654344

ABSTRACT:
A torque converter for use in drilling with a rotating drill bit, the purpose of the torque converter being to absorb impacts and bring about an axial movement of the drill bit when the torque exceeds a predetermined value. For this purpose the torque converter is composed of two cylindrical string parts connected through the bearing elements. The string parts are connected to each other through helical elements in such a way that relative rotation of the two cylindrical string parts brings about axial movement, which unloads the drill bit.

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patent: WO 2004/090278 (2004-10-01), None
International Search Report for parent application PCT/NO2006/000019, having a mailing date of Apr. 10, 2006.

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