WO2025248354 - DRILL HEAD HAVING AN INTERMEDIATE ELECTRODE
National phase entry is expected:
Publication Number
WO/2025/248354
Publication Date
04.12.2025
International Application No.
PCT/IB2025/054768
International Filing Date
07.05.2025
Title **
[English]
DRILL HEAD HAVING AN INTERMEDIATE ELECTRODE
[French]
TÊTE DE FORAGE À ÉLECTRODE INTERMÉDIAIRE
Applicants **
G-PULSE INC.
Inventors
AVRILLAUD, Gilles
PICHONNEAU, Augustin
DOSTA, Frédéric
Priority Data
FR2405713
31.05.2024
FR
Application details
| Total Number of Claims/PCT | * |
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| Number of Multi-Dependent Claims | * |
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| Pages of Specification | * |
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
* |
| Type of Assignment |
The Standard Agent's Assignment
* |
| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2026 | |
| EPO | Filing, Examination, Granting | 8131 | |
| Japan | Filing, Examination, Granting | 2161 | |
| South Korea | Filing, Examination, Granting | 2056 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
19,114
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Abstract[English]
The invention relates to a drill head (1) for a drilling tool, the drill head (1) extending along a longitudinal axis (Z) and comprising a drilling end (10) and an attachment end (11), wherein the attachment end (11) is configured to be fitted to the drilling tool, and wherein the drilling end (10) comprises a centre (10- A) and at least one pair of electrodes (100), wherein the at least one pair of electrodes (100) comprises a high-voltage electrode (100-1) and a ground electrode (100-2), wherein the high-voltage electrode (100-1) and the ground electrode (100-2) are radially aligned with the centre (10-A) of the drilling end (10), and wherein the drilling end (10) comprises at least one intermediate electrode (102) mounted between the high-voltage electrode (100-1) and the ground electrode (100-2), wherein the intermediate electrode (102) is mounted on an insulating support (104).[French]
L’invention concerne une tête de forage (1) pour outil de forage, ladite tête de forage (1) s’étendant selon un axe longitudinal (Z) et comportant une extrémité de forage (10) et une extrémité de fixation (11), ladite extrémité de fixation (11) étant configurée pour être montée sur ledit outil de forage, ladite extrémité de forage (10) comprenant un centre (10- A) et au moins une paire d’électrodes (100), ladite au moins une paire d’électrodes (100) comprenant une électrode haute-tension (100-1) et une électrode de masse (100-2), ladite électrode haute-tension (100-1) et ladite électrode de masse (100-2) étant alignées radialement avec le centre (10-A) de l’extrémité de forage (10), ladite extrémité de forage (10) comprenant au moins une électrode intermédiaire (102) montée entre l’électrode haute-tension (100-1) et l’électrode de masse (100-2), ladite électrode intermédiaire (102) étant montée sur un support isolant (104).