Patent · US Active

Electrical pulse drill bit having spiral electrodes

US10370903B2 · kind B2 · utility

1Cited by

15References

21Claims

0Family size

Assignee

Baker Hughes, a GE company, LLC · US

Inventors

Joerg Lehr · Sulingen, DE
Erik Anders · Berlin, DE

Key dates

Filing date	Jan 20, 2017
Grant date	Aug 6, 2019
Priority date	—
Expiry date	Apr 13, 2037

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B10/00
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A drill bit assembly includes a drill bit body, an insulating layer disposed on an end of the drill bit body and that defines a drill bit face and two electrodes formed such that they both extend from the drill bit face. The two electrodes form a spiral on the drill bit face and are equidistant from each other at all locations of the drill bit face.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.