The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 24, 2009
Filed:
Feb. 23, 2005
Nuno Da Silva, Brussels, BE;
Nicolas Luyckx, Mons, BE;
Nuno Da Silva, Brussels, BE;
Nicolas Luyckx, Mons, BE;
Halliburton Energy Services, Inc., Drogenbos, BE;
Abstract
The invention concerns a drill bit () with stationary cutting structure, comprising a tool body () and several blades (), which consist of a metal matrix impregnated with abrasive particles, and which are fixed to the tool body while extending forward therefrom, said blades () forming jointly a front cutting surface (), and having radial channels () for drilling fluid which mutually separate the blades () and are open outwards. The invention is characterized in that it further comprises, through at least one radial fluid channel () arranged between two said blades (), at least one bridge (″) which connects said two blades, by being arranged between the tool body () and said front cutting surface ().