Patents by Inventor Till Cramer

Till Cramer 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).

  • Concrete drill
    Patent number: 7055633
    Abstract: A concrete drill for a rotary and percussively driven hand tool machine with a cutting part (1) and a striking part (2) that is axially and limited displaceable relative to the cutting part (1). Each of the cutting part (1) and the striking part (2) have a respective facial surface work area for machining a bore hole surface. The respective facial surface work area of the cutting part (1) and the striking part (2) radially overlap upon rotation of the concrete drill.
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: June 6, 2006
    Assignee: Hilti Aktiengesellschaft
    Inventors: Till Cramer, Reinhard Bertsch, Peter Mugg, Hanspeter Schad
  • Working tool for machining mineral constructional components
    Publication number: 20060006002
    Abstract: A working tool for machining mineral constructional components, in particular, for machining mineral constructional components, mineral foundations, and the like with an ultrasonic tool, has a carrier body which is formed of an unalloyed hardened steel having a carbon content from 0.2% to 0.8% and which is provided with at least one cutting element.
    Type: Application
    Filed: June 29, 2005
    Publication date: January 12, 2006
    Inventors: Peter Mugg, Till Cramer, Stefanie Tschegg, Herwig Mayer, Bernd Zettl
  • Ultrasonic annular core bit
    Patent number: 6948574
    Abstract: A core bit for abrasive cutting including a cylindrical tube (3) provided at its end surface with cutting or abrasive bodies (2) and a cover (4) provided at an opposite end surface of the cylindrical tube (3) and secured thereto and having, along its central axis (A), a shank (5) to be received in a rotary power tool, with the cover (4) being dimensioned, with respect to a set excitation frequency, for forming a whole number of maximum amplitude oscillations of a concentric flexural oscillation, and the cylindrical tube (3) being dimensioned, with respect to a set excitation frequency, for forming a whole number of maximum amplitude oscillations of axial longitudinal oscillations.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: September 27, 2005
    Assignee: Hilti Aktiengesellschaft
    Inventors: Till Cramer, Adrian Kauf, Stefan Tichy, Walter Littmann, John van Taack-Trakranen, Peter Alberg
  • Concrete drill
    Publication number: 20040079556
    Abstract: A concrete drill for a rotary and percussively driven hand tool machine with a cutting part (1) and a striking part (2) that is axially and limited displaceable relative to the cutting part (1). Each of the cutting part (1) and the striking part (2) have a respective facial surface work area for machining a bore hole surface. The respective facial surface work area of the cutting part (1) and the striking part (2) radially overlap upon rotation of the concrete drill.
    Type: Application
    Filed: July 16, 2003
    Publication date: April 29, 2004
    Inventors: Till Cramer, Reinhard Bertsch, Peter Mugg, Hanspeter Schad
  • Ultrasonic annular core bit
    Publication number: 20030146024
    Abstract: A core bit for abrasive cutting including a cylindrical tube (3) provided at its end surface with cutting or abrasive bodies (2) and a cover (4) provided at an opposite end surface of the cylindrical tube (3) and secured thereto and having, along its central axis (A), a shank (5) to be received in a rotary power tool, with the cover (4) being dimensioned, with respect to a set excitation frequency, for forming a whole number of maximum amplitude oscillations of a concentric flexural oscillation, and the cylindrical tube (3) being dimensioned, with respect to a set excitation frequency, for forming a whole number of maximum amplitude oscillations of axial longitudinal oscillations.
    Type: Application
    Filed: December 18, 2002
    Publication date: August 7, 2003
    Inventors: Till Cramer, Adrian Kauf, Stefan Tichy, Walter Littmann, John van Taack-Trakranen, Peter Alberg