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公开(公告)号：CA2311020C
公开(公告)日：2007-11-06
申请号：CA2311020
申请日：2000-06-08
Applicant: SMITH INTERNATIONAL
Inventor： VAN WAES DUANE R , OLDHAM THOMAS WALTER , TRUAX DAVID K , PENUEL CARL EDWARD
Abstract: An earth-boring bit comprises a bit body bit body in which are mounted a plurality of cutting structures inserts, wherein at least a portion of the cutting structures comprise diamond--impregnated inserts having a total thermal exposure of less than 25 minutes above 1500.degree.F. The diamonds can be natural or synthetic diamond. The bit body itself may be diamond-impregnated, in which case it is preferred that the diamonds in the inserts make up at least 40% of the total diamond in the bit.
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公开(公告)号：CA2584928C
公开(公告)日：2010-08-10
申请号：CA2584928
申请日：2000-06-08
Applicant: SMITH INTERNATIONAL
Inventor： TRUAX DAVID K , OLDHAM THOMAS WALTER , VAN WAES DUANE R , PENUEL CARL EDWARD
Abstract: An earth-boring bit comprises a bit body bit body in which are mounted a plurality of cutting structures inserts, wherein at least a portion of the cutting structures comprise diamond--impregnated inserts having a total thermal exposure of less than 25 minutes above 1500°F. The diamonds can be natural or synthetic diamond. The bit body itself may be diamond-impregnated, in which case it is preferred that the diamonds in the inserts make up at least 40% of the total diamond in the bit.
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公开(公告)号：CA2693265A1
公开(公告)日：2000-12-30
申请号：CA2693265
申请日：2000-06-08
Applicant: SMITH INTERNATIONAL
Inventor： TRAUX DAVID K , OLDHAM THOMAS WALTER , VAN WAES DUANE R , PENUEL CARL EDWARD
Abstract: An earth-boring bit comprises a bit body bit body in which are mounted a plurality of cutting structures inserts, wherein at least a portion of the cutting structures comprise diamond--impregnated inserts having a total thermal exposure of less than 25 minutes above 1500°F. The diamonds can be natural or synthetic diamond. The bit body itself may be diamond-impregnated, in which case it is preferred that the diamonds in the inserts make up at least 40% of the total diamond in the bit.
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公开(公告)号：CA2584928A1
公开(公告)日：2000-12-30
申请号：CA2584928
申请日：2000-06-08
Applicant: SMITH INTERNATIONAL
Inventor： VAN WAES DUANE R , OLDHAM THOMAS WALTER , PENUEL CARL EDWARD , TRUAX DAVID K
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公开(公告)号：CA2693265C
公开(公告)日：2012-03-20
申请号：CA2693265
申请日：2000-06-08
Applicant: SMITH INTERNATIONAL
Inventor： TRAUX DAVID K , OLDHAM THOMAS WALTER , VAN WAES DUANE R , PENUEL CARL EDWARD
Abstract: An earth-boring bit comprises a bit body bit body in which are mounted a plurality of cutting structures inserts, wherein at least a portion of the cutting structures comprise diamond--impregnated inserts having a total thermal exposure of less than 25 minutes above 1500°F. The diamonds can be natural or synthetic diamond. The bit body itself may be diamond-impregnated, in which case it is preferred that the diamonds in the inserts make up at least 40% of the total diamond in the bit.
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Patent Agency Ranking
公开(公告)号：CA2311020A1
公开(公告)日：2000-12-30
申请号：CA2311020
申请日：2000-06-08
Applicant: SMITH INTERNATIONAL
Inventor： VAN WAES DUANE R , PENUEL CARL EDWARD , TRUAX DAVID K , OLDHAM THOMAS WALTER
Abstract: An earth-boring bit comprises a bit body bit body in which are mounted a plurality of cutting structures inserts, wherein at least a portion of the cutting structures comprise diamond-impregnated inserts having a total thermal exposure of less than 25 minutes above 1500.degree.F. The diamonds can be natural or synthetic diamond. The bit body itself may be diamond-impregnated, in which case it is preferred that the diamonds in the inserts make up at least 40% of the total diamond in the bit.
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公开(公告)号：GB2353053B
公开(公告)日：2003-10-15
申请号：GB0016244
申请日：2000-06-30
Applicant: SMITH INTERNATIONAL
Inventor： TRUAX DAVID K , OLDHAM THOMAS W , VAN WAES DUANE R , PENUEL CARL EDWARD
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公开(公告)号：DE10031833C2
公开(公告)日：2002-11-21
申请号：DE10031833
申请日：2000-06-30
Applicant: SMITH INTERNATIONAL
Inventor： TRUAX DAVID K , WAES DUANE R VAN , OLDHAM THOMAS WALTER , PENUEL CARL EDWARD
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公开(公告)号：GB2353053A
公开(公告)日：2001-02-14
申请号：GB0016244
申请日：2000-06-30
Applicant: SMITH INTERNATIONAL
Inventor： TRUAX DAVID K , OLDHAM THOMAS W , VAN WAES DUANE R , PENUEL CARL EDWARD
Abstract: An earth-boring drill bit [20] consists of a bit body [26] and a number of cutting structure inserts [10], at least a portion of which are impregnated with diamonds. The cutting structure inserts [10] may have a total thermal exposure of less than 25 minutes above 800{ during the manufacture of the drill bit [20], while the bit body [26] is thermally exposed for longer periods at the same temperatures. The bit body [26] may also be impregnated with diamonds, which can be either natural or synthetic, and the bit body [26] may have integrally formed blades. The cutting structure inserts [10] may be attached to the bit body by the use of adhesive, brazing or mechanical means.
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公开(公告)号：DE10031833A1
公开(公告)日：2001-01-11
申请号：DE10031833
申请日：2000-06-30
Applicant: SMITH INTERNATIONAL
Inventor： TRUAX DAVID K , WAES DUANE R VAN , OLDHAM THOMAS WALTER , PENUEL CARL EDWARD
Abstract: The diamond-impregnated earth drill comprises a drill body (26) and a number of inserts (10) fixed to the drill body. At least one part of the body is impregnated with diamond and contains a first volume. At least one of the inserts is impregnated with diamond and contains a second volume. An Independent claim is also included for the production of the drill comprising forming a number of diamond-impregnated inserts containing diamond particles in a first matrix; forming a diamond-impregnated drill body and a number of recesses (29) in the drill body to receive the inserts; and mounting the inserts in the drill body and fixing them to it. Preferred Features: One of the diamond-impregnated inserts comprises thermally stable polycrystalline diamond material. The drill body has an infiltrated diamond-impregnated tungsten carbide. The drill further comprises a secondary cutting element.
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