Patents by Inventor Duane R. Van Waes

Duane R. Van Waes has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Drill bit having diamond impregnated inserts primary cutting structure
    Patent number: 6725953
    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.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: April 27, 2004
    Assignee: Smith International, Inc.
    Inventors: David K. Truax, Thomas Walter Oldham, Carl Edward Penuel, Duane R. Van Waes
  • Drill bit having diamond impregnated inserts primary cutting structure
    Publication number: 20020125048
    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.
    Type: Application
    Filed: April 22, 2002
    Publication date: September 12, 2002
    Inventors: David K. Traux, Thomas Walter Oldham, Carl Edward Penuel, Duane R. Van Waes
  • Drill bit having diamond impregnated inserts primary cutting structure
    Patent number: 6394202
    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.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: May 28, 2002
    Assignee: Smith International, Inc.
    Inventors: David K. Truax, Thomas Walter Oldham, Carl Edward Penuel, Duane R. Van Waes
  • DRILL BIT HAVING DIAMOND IMPREGNATED INSERTS PRIMARY CUTTING STRUCTURE
    Publication number: 20010047891
    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.
    Type: Application
    Filed: June 30, 1999
    Publication date: December 6, 2001
    Inventors: DAVID K. TRUAX, THOMAS WALTER OLDHAM, CARL EDWARD PENUEL, DUANE R. VAN WAES