Patents by Inventor Udo Koehler

Udo Koehler 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).

  • Cutting tools for drilling concrete, aggregate, masonry or the like materials
    Publication number: 20020054799
    Abstract: A cutting tool (500) has a longitudinally extending shaft portion (588) with a chucking part (509) and a cutting head (506). A pressed powder cutting insert (518) with a cutting edge (520) is on the cutting head (506). The cutting edge (520) includes at least one cutting portion. A rake surface (524) is formed adjacent to at least one of the cutting portions (520) with the rake face (524) being at a rake angle from about 0° to 10°. A clearance face (526) is formed adjacent to the at least one cutting portion opposite the rake face (524). The clearance face (526) is at a clearance angle from about 10° to 50°. An edge radius (540) between the rake face (524) and the clearance face (526) is at a radius of from about 0.0015 to about 0.004 inch. The edge radius 540 is formed during pressing of the powder to form the insert, thus, enabling the insert to be directly braised into the cutting head (506).
    Type: Application
    Filed: November 13, 2001
    Publication date: May 9, 2002
    Inventors: Muniswamappa Anjanappa, Stephen R. Crosby, Russell M. Timmons, John D. Williams, Thomas Trevor Bludis, Udo Koehler
  • Cutting tools for drilling concrete, aggregate, masonry or the like materials
    Publication number: 20010000223
    Abstract: A cutting tool (500) has a longitudinally extending shaft portion (588) with a chucking part (509) and a cutting head (506). A pressed powder cutting insert (518) with a cutting edge (520) is on the cutting head (506). The cutting edge (520) includes at least one cutting portion. A rake surface (524) is formed adjacent to at least one of the cutting portions (520) with the rake face (524) being at a rake angle from about 0° to 10°. A clearance face (526) is formed adjacent to the at least one cutting portion opposite the rake face (524). The clearance face (526) is at a clearance angle from about 10° to 50°. An edge radius (540) between the rake face (524) and the clearance face (526) is at a radius of from about 0.0015 to about 0.004 inch. The edge radius 540 is formed during pressing of the powder to form the insert, thus, enabling the insert to be directly braised into the cutting head (506).
    Type: Application
    Filed: November 30, 2000
    Publication date: April 12, 2001
    Applicant: Black and Decker Inc.
    Inventors: Muniswamappa Anjanappa, Stephen R. Crosby, Russell M. Timmons, John D. Williams, Thomas Trevor Bludis, Udo Koehler
  • Cutting tools for drilling concrete, aggregate, masonry or the like materials
    Patent number: 5918105
    Abstract: A cutting tool (500) has a longitudinally extending shaft portion (588) with a chucking part (509) and a cutting head (506). A pressed powder cutting insert (518) with a cutting edge (520) is on the cutting head (506). The cutting edge (520) includes at least one cutting portion. A rake surface (524) is formed adjacent to at least one of the cutting portions (520) with the rake face (524) being at a rake angle from about 0.degree. to 10.degree.. A clearance face (526) is formed adjacent to the at least one cutting portion opposite the rake face (524). The clearance face (526) is at a clearance angle from about 10.degree. to 50.degree.. An edge radius (540) between the rake face (524) and the clearance face (526) is at a radius of from about 0.0015 to about 0.004 inch. The edge radius 540 is formed during pressing of the powder to form the insert, thus, enabling the insert to be directly braised into the cutting head (506).
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: June 29, 1999
    Assignees: Black & Decker Inc., University of Maryland Baltimore County
    Inventors: Muniswamappa Anjanappa, Stephen R. Crosby, Russell M. Timmons, John D. Williams, Thomas Trevor Bludis, Udo Koehler