Patents by Inventor K. Shayne Drivdahl

K. Shayne Drivdahl 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).

  • Patent number: 8051929
    Abstract: Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughout the crown. As the cutting portion of the drill bit erodes through normal use, the fluid/debris notches at the tip of the bit are eliminated. As the erosion progresses, the slots become exposed and then they function as fluid/debris ways. This configuration allows the crown height to be extended and lengthened without substantially reducing the structural integrity of the drill bit.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: November 8, 2011
    Assignee: Longyear TM, Inc.
    Inventors: K. Shayne Drivdahl, Michael D. Rupp
  • Patent number: 7958954
    Abstract: Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughout the crown. As the cutting portion of the drill bit erodes through normal use, the fluid/debris notches at the tip of the bit are eliminated. As the erosion progresses, the slots become exposed and then they function as fluid/debris ways. This configuration allows the crown height to be extended and lengthened without substantially reducing the structural integrity of the drill bit.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: June 14, 2011
    Assignee: Longyear TM, Inc.
    Inventors: K. Shayne Drivdahl, Michael D. Rupp
  • Patent number: 7918288
    Abstract: Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughout the crown. As the cutting portion of the drill bit erodes through normal use, the fluid/debris notches at the tip of the bit are eliminated. As the erosion progresses, the slots become exposed and then they function as fluid/debris ways. This configuration allows the crown height to be extended and lengthened without substantially reducing the structural integrity of the drill bit.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: April 5, 2011
    Assignee: Longyear TM, Inc.
    Inventors: K. Shayne Drivdahl, Michael D. Rupp
  • Patent number: 7909119
    Abstract: Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughout the crown. As the cutting portion of the drill bit erodes through normal use, the fluid/debris notches at the tip of the bit are eliminated. As the erosion progresses, the slots become exposed and then they function as fluid/debris ways. This configuration allows the crown height to be extended and lengthened without substantially reducing the structural integrity of the drill bit.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: March 22, 2011
    Assignee: Longyear TM, Inc.
    Inventors: K. Shayne Drivdahl, Michael D. Rupp
  • Publication number: 20110031027
    Abstract: Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughout the crown. As the cutting portion of the drill bit erodes through normal use, the fluid/debris notches at the tip of the bit are eliminated. As the erosion progresses, the slots become exposed and then they function as fluid/debris ways. This configuration allows the crown height to be extended and lengthened without substantially reducing the structural integrity of the drill bit.
    Type: Application
    Filed: October 21, 2010
    Publication date: February 10, 2011
    Applicant: LONGYEAR TM, INC.
    Inventors: K. Shayne Drivdahl, Michael D. Rupp
  • Patent number: 7874384
    Abstract: Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughout the crown. As the cutting portion of the drill bit erodes through normal use, the fluid/debris notches at the tip of the bit are eliminated. As the erosion progresses, the slots become exposed and then they function as fluid/debris ways. This configuration allows the crown height to be extended and lengthened without substantially reducing the structural integrity of the drill bit.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: January 25, 2011
    Assignee: Longyear TM, Inc.
    Inventors: K. Shayne Drivdahl, Michael D. Rupp
  • Patent number: 7828090
    Abstract: Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughout the crown. As the cutting portion of the drill bit erodes through normal use, the fluid/debris notches at the tip of the bit are eliminated. As the erosion progresses, the slots become exposed and then they function as fluid/debris ways. This configuration allows the crown height to be extended and lengthened without substantially reducing the structural integrity of the drill bit.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: November 9, 2010
    Assignee: Longyear TM, Inc.
    Inventors: K. Shayne Drivdahl, Michael D. Rupp
  • Publication number: 20100012382
    Abstract: Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughout the crown. As the cutting portion of the drill bit erodes through normal use, the fluid/debris notches at the tip of the bit are eliminated. As the erosion progresses, the slots become exposed and then they function as fluid/debris ways. This configuration allows the crown height to be extended and lengthened without substantially reducing the structural integrity of the drill bit.
    Type: Application
    Filed: September 28, 2009
    Publication date: January 21, 2010
    Applicant: LONGYEAR TM, INC.
    Inventors: K. Shayne Drivdahl, Michael D. Rupp
  • Publication number: 20100012385
    Abstract: Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughout the crown. As the cutting portion of the drill bit erodes through normal use, the fluid/debris notches at the tip of the bit are eliminated. As the erosion progresses, the slots become exposed and then they function as fluid/debris ways. This configuration allows the crown height to be extended and lengthened without substantially reducing the structural integrity of the drill bit.
    Type: Application
    Filed: September 22, 2009
    Publication date: January 21, 2010
    Applicant: LONGYEAR TM, INC.
    Inventors: K. Shayne Drivdahl, Michael D. Rupp
  • Publication number: 20100012386
    Abstract: Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughout the crown. As the cutting portion of the drill bit erodes through normal use, the fluid/debris notches at the tip of the bit are eliminated. As the erosion progresses, the slots become exposed and then they function as fluid/debris ways. This configuration allows the crown height to be extended and lengthened without substantially reducing the structural integrity of the drill bit.
    Type: Application
    Filed: September 25, 2009
    Publication date: January 21, 2010
    Applicant: LONGYEAR TM, INC.
    Inventors: K. Shayne Drivdahl, Michael D. Rupp
  • Publication number: 20100012381
    Abstract: Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughout the crown. As the cutting portion of the drill bit erodes through normal use, the fluid/debris notches at the tip of the bit are eliminated. As the erosion progresses, the slots become exposed and then they function as fluid/debris ways. This configuration allows the crown height to be extended and lengthened without substantially reducing the structural integrity of the drill bit.
    Type: Application
    Filed: September 28, 2009
    Publication date: January 21, 2010
    Applicant: LONGYEAR TM, INC.
    Inventors: K. Shayne Drivdahl, Michael D. Rupp
  • Publication number: 20100006344
    Abstract: Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughout the crown. As the cutting portion of the drill bit erodes through normal use, the fluid/debris notches at the tip of the bit are eliminated. As the erosion progresses, the slots become exposed and then they function as fluid/debris ways. This configuration allows the crown height to be extended and lengthened without substantially reducing the structural integrity of the drill bit.
    Type: Application
    Filed: September 22, 2009
    Publication date: January 14, 2010
    Applicant: LONGYEAR TM, INC.
    Inventors: K. Shayne Drivdahl, Michael D. Rupp
  • Patent number: 7628228
    Abstract: Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughout the crown. As the cutting portion of the drill bit erodes through normal use, the fluid/debris notches at the tip of the bit are eliminated. As the erosion progresses, the slots become exposed and then they function as fluid/debris ways. This configuration allows the crown height to be extended and lengthened without substantially reducing the structural integrity of the drill bit.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: December 8, 2009
    Assignee: Longyear TM, Inc.
    Inventors: K. Shayne Drivdahl, Michael D. Rupp
  • Publication number: 20080142262
    Abstract: Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughout the crown. As the cutting portion of the drill bit erodes through normal use, the fluid/debris notches at the tip of the bit are eliminated. As the erosion progresses, the slots become exposed and then they function as fluid/debris ways. This configuration allows the crown height to be extended and lengthened without substantially reducing the structural integrity of the drill bit. And with an extended crown height, the drill bit can last longer and require less tripping in and out of the borehole to replace the drill bit.
    Type: Application
    Filed: December 14, 2006
    Publication date: June 19, 2008
    Inventors: K. Shayne Drivdahl, Michael D. Rupp