Patents by Inventor Juergen Bernert

Juergen Bernert 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: 9464606
    Abstract: A handheld work apparatus has at least one tool which is driven by a combustion engine. A portion of an intake channel of the combustion engine is formed by an elastic connecting piece which has a first section and a second section between which an expansion fold is arranged. The expansion fold has a first side wall and a second side wall arranged downstream of the first side wall. A peripheral wall, which extends in the region of the largest outside diameter (a) of the expansion fold, is arranged in flow direction between the first side wall and the second side wall. The connecting piece has a stop for the expansion fold which prevents a segment of the first side wall adjoining the peripheral wall from bearing against the second side wall.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: October 11, 2016
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Sebastian Friedrich, Jens Knauss, Christian Schmidt, Daniel Diepolder, Christina Escher, Andreas Lingen, Juergen Bernert
  • Publication number: 20150027396
    Abstract: A handheld work apparatus has at least one tool which is driven by a combustion engine. A portion of an intake channel of the combustion engine is formed by an elastic connecting piece which has a first section and a second section between which an expansion fold is arranged. The expansion fold has a first side wall and a second side wall arranged downstream of the first side wall. A peripheral wall, which extends in the region of the largest outside diameter (a) of the expansion fold, is arranged in flow direction between the first side wall and the second side wall. The connecting piece has a stop for the expansion fold which prevents a segment of the first side wall adjoining the peripheral wall from bearing against the second side wall.
    Type: Application
    Filed: July 28, 2014
    Publication date: January 29, 2015
    Inventors: Sebastian Friedrich, Jens Knauss, Christian Schmidt, Daniel Diepolder, Christina Escher, Andreas Lingen, Juergen Bernert