Patents by Inventor Gerhard Kuhnelt

Gerhard Kuhnelt 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).

  • Profiled bar, and vehicle spring produced therefrom
    Patent number: 10890228
    Abstract: A vehicle spring for a spring system, includes a spring body (20) and is produced, in particular rolled, from a profiled bar (1) made of a flat steel bar, in particular spring steel, in a hot deformation process. The profiled bar (1) or the spring body (20) has at least one material recess (6) which is provided over the length of the profiled bar or the spring body at least in some regions. The cross-sectional shape of the profiled bar (1) can be the same over the entire length of the profiled bar, whereas the cross-sectional shape in the spring body (20) can vary over the length of the spring body.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: January 12, 2021
    Assignee: Hendrickson Commercial Vehicle Systems Europe GmbH
    Inventors: Gerhard Kuhnelt, Jorg Zamberger
  • PROFILED BAR, AND VEHICLE SPRING PRODUCED THEREFROM
    Publication number: 20170314630
    Abstract: A vehicle spring for a spring system, includes a spring body (20) and is produced, in particular rolled, from a profiled bar (1) made of a flat steel bar, in particular spring steel, in a hot deformation process. The profiled bar (1) or the spring body (20) has at least one material recess (6) which is provided over the length of the profiled bar or the spring body at least in some regions. The cross-sectional shape of the profiled bar (1) can be the same over the entire length of the profiled bar, whereas the cross-sectional shape in the spring body (20) can vary over the length of the spring body.
    Type: Application
    Filed: July 18, 2017
    Publication date: November 2, 2017
    Inventors: Gerhard Kuhnelt, Jorg Zamberger
  • Profiled bar, and vehicle spring produced therefrom
    Patent number: 9726245
    Abstract: A vehicle spring for a spring system, includes a spring body (20) and is produced, in particular rolled, from a profiled bar (1) made of a flat steel bar, in particular spring steel, in a hot deformation process. The profiled bar (1) or the spring body (20) has at least one material recess (6) which is provided over the length of the profiled bar or the spring body at least in some regions. The cross-sectional shape of the profiled bar (1) can be the same over the entire length of the profiled bar, whereas the cross-sectional shape in the spring body (20) can vary over the length of the spring body.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: August 8, 2017
    Assignee: Hendrickson Commercial Vehicle Systems Europe GmbH
    Inventors: Gerhard Kuhnelt, Jorg Zamberger
  • PROFILED BAR, AND VEHICLE SPRING PRODUCED THEREFROM
    Publication number: 20150260251
    Abstract: A vehicle spring for a spring system, includes a spring body (20) and is produced, in particular rolled, from a profiled bar (1) made of a flat steel bar, in particular spring steel, in a hot deformation process. The profiled bar (1) or the spring body (20) has at least one material recess (6) which is provided over the length of the profiled bar or the spring body at least in some regions. The cross-sectional shape of the profiled bar (1) can be the same over the entire length of the profiled bar, whereas the cross-sectional shape in the spring body (20) can vary over the length of the spring body.
    Type: Application
    Filed: July 25, 2013
    Publication date: September 17, 2015
    Inventors: Gerhard Kuhnelt, Jorg Zamberger