Patents by Inventor Andreas Feld

Andreas Feld 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: 8613348
    Abstract: A hydraulic oscillation damper has a piston rod with a piston that is inserted into a damper tube filled with damping fluid, and divides the damper tube into first and second working chambers. First and second continuously adjustable damping valves are disposed in a common housing that is attached to the damper tube, and are connected hydraulically in parallel with the working piston. The housing has a first hydraulic chamber that is connected to the first working chamber via a first bore, and a second hydraulic chamber that is connected to the second working chamber via a second bore. A flow guiding element, which separates the two hydraulic chambers, guides the damping fluid flow to the first or second damping valve in response to a retraction or extension movement of the piston.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: December 24, 2013
    Assignee: ThyssenKrupp Bilstein Suspension GmbH
    Inventors: Wolfgang Hamers, Andreas Feld
  • Publication number: 20110042174
    Abstract: A hydraulic oscillation damper has a piston rod with a piston that is inserted into a damper tube filled with damping fluid, and divides the damper tube into first and second working chambers. First and second continuously adjustable damping valves are disposed in a common housing that is attached to the damper tube, and are connected hydraulically in parallel with the working piston. The housing has a first hydraulic chamber that is connected to the first working chamber via a first bore, and a second hydraulic chamber that is connected to the second working chamber via a second bore. A flow guiding element, which separates the two hydraulic chambers, guides the damping fluid flow to the first or second damping valve in response to a retraction or extension movement of the piston.
    Type: Application
    Filed: March 19, 2009
    Publication date: February 24, 2011
    Applicant: ThyssenKrupp Bilstein Suspension GmbH
    Inventors: Wolfgang Hamers, Andreas Feld