Patents by Inventor Helmut Kratochwill

Helmut Kratochwill 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).

  • Gear set for differential gear shafts of an internal combustion engine
    Patent number: 7530281
    Abstract: A gear set for differential shafts of internal combustion engines. The gear set includes a toothed wheel which can be moved parallel to its axis for adjustment of backlash. A spacer is arranged removably between tooth faces of interacting teeth of engaging toothed wheels and serves to adjust the backlash between the toothed wheels. The spacer is arranged free of play between corresponding tooth faces of the toothed wheels by way of the movable toothed wheel which can be moved with a predetermined force to the other toothed wheels.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: May 12, 2009
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Helmut Kratochwill, Walter Reisinger, Reinhard Ratzberger, Guenter Bachner
  • Gear Set for Differential Gear Shafts of an Internal Combustion Engine
    Publication number: 20080053259
    Abstract: A gear set for differential shafts of internal combustion engines. The gear set includes a toothed wheel which can be moved parallel to its axis for adjustment of backlash. A spacer is arranged removably between tooth faces of interacting teeth of engaging toothed wheels and serves to adjust the backlash between the toothed wheels. The spacer is arranged free of play between corresponding tooth faces of the toothed wheels by way of the movable toothed wheel which can be moved with a predetermined force to the other toothed wheels.
    Type: Application
    Filed: October 29, 2007
    Publication date: March 6, 2008
    Applicant: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Helmut KRATOCHWILL, Walter Reisinger, Reinhard Ratzberger, Gunter Bachner
  • Method for obtaining a desired tooth flank backlash
    Patent number: 6997077
    Abstract: A method of obtaining a desired tooth flank backlash for a transmission having at least two interlocking toothed gears, comprises applying a removable coating on at least one of the toothed gears for purposes of setting the backlash, the coating comprising a mixture containing a bonding agent and a filling material; adjusting the least two interlocking toothed gears with the coating relatively to each another essentially play-free or with only small play; and removing the coating.
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: February 14, 2006
    Assignees: Bayerische Motoren Werke AG
    Inventors: Wolfgang Kollmann, Helga Kollmann, Helmut Kratochwill, Walter Reisinger, Reinhard Ratzberger, Guenter Bachner
  • Method for obtaining a desired tooth flank backlash
    Publication number: 20040049920
    Abstract: A method of obtaining a desired tooth flank backlash for a transmission having at least two interlocking toothed gears, comprises applying a removable coating on at least one of the toothed gears for purposes of setting the backlash, the coating comprising a mixture containing a bonding agent and a filling material; adjusting the least two interlocking toothed gears with the coating relatively to each another essentially play-free or with only small play; and removing the coating.
    Type: Application
    Filed: June 16, 2003
    Publication date: March 18, 2004
    Inventors: Wolfgang Kollmann, Helga Kollmann, Helmut Kratochwill, Walter Reisinger, Reinhard Ratzberger, Guenter Bachner