Patents by Inventor Joerg Kriedel

Joerg Kriedel 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).

  • Hand-held tool with a counter-vibration device
    Patent number: 8245791
    Abstract: The invention relates to a hand-held tool, in particular a rotary hammer, a percussion hammer, or a sabre saw. The hand-held tool is equipped with a drive unit and a stroke-generating element; the drive unit is embodied to move the stroke-generating element in a reciprocating fashion along a translation axis. The hand-held tool has at least one counterweight; the counterweight is operatively connected to the drive unit in such a way that it is possible to at least partially compensate for forces at least indirectly caused by the reciprocating motion. According to the invention, the counterweight in the hand-held tool is supported so that it is able to move, in particular to reciprocate, coaxial or parallel to the translation axis.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: August 21, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Joerg Kriedel, Richard Engel, Otto Baumann, Hardy Schmid, Holger Ruebsaamen, Mario Patzig
  • HAND-HELD TOOL WITH A COUNTER-VIBRATION DEVICE
    Publication number: 20100236804
    Abstract: The invention relates to a hand-held tool, in particular a rotary hammer, a percussion hammer, or a sabre saw. The hand-held tool is equipped with a drive unit and a stroke-generating element; the drive unit is embodied to move the stroke-generating element in a reciprocating fashion along a translation axis. The hand-held tool has at least one counterweight; the counterweight is operatively connected to the drive unit in such a way that it is possible to at least partially compensate for forces at least indirectly caused by the reciprocating motion. According to the invention, the counterweight in the hand-held tool is supported so that it is able to move, in particular to reciprocate, coaxial or parallel to the translation axis.
    Type: Application
    Filed: March 16, 2010
    Publication date: September 23, 2010
    Inventors: Joerg KRIEDEL, Richaer Engel, Otto Baumann, Hardy Schmid, Holger Ruebsaamen, Mario Patzig