Patents by Inventor Sven Walter Pruett

Sven Walter Pruett 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).

  • Engine valve spring with damping
    Patent number: 10947871
    Abstract: A valve spring for an engine valve of an internal combustion engine includes a body having a first end and an opposite second end and defining a plurality of coils having an outer surface, and a flocking material applied to at least a portion of the outer surface, the flocking material including a plurality of fibers configured to provide a passive vibro-acoustic damping to facilitate dynamic damping of the valve spring and reduce noise, vibration, and harshness.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: March 16, 2021
    Assignee: FCA US LLC
    Inventor: Sven Walter Pruett
  • ENGINE VALVE SPRING WITH DAMPING
    Publication number: 20200284172
    Abstract: A valve spring for an engine valve of an internal combustion engine includes a body having a first end and an opposite second end and defining a plurality of coils having an outer surface, and a flocking material applied to at least a portion of the outer surface, the flocking material including a plurality of fibers configured to provide a passive vibro-acoustic damping to facilitate dynamic damping of the valve spring and reduce noise, vibration, and harshness.
    Type: Application
    Filed: March 4, 2020
    Publication date: September 10, 2020
    Inventor: Sven Walter Pruett