Patents by Inventor Heiner W. Louis

Heiner W. Louis 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).

  • Solenoid winding case and protective overmold and method of making
    Patent number: 5220301
    Abstract: A solenoid winding and housing for use with an armature actuated fuel poppet valve and the process of applying interior and external annular plastic shields on and in the housing to seal against moisture and fuel and to provide joint and weld protection. A prong housing for the solenoid winding ends is molded along with the exterior molded shields. Noise insulation as well as protection of parts is provided with the molded shields.
    Type: Grant
    Filed: July 26, 1991
    Date of Patent: June 15, 1993
    Assignee: Orbital Walbro Corporation
    Inventors: Albert L. Haas, Heiner W. Louis, Chris N. Sayer