Patents by Inventor Daniel W. Johnsman

Daniel W. Johnsman 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).

  • Vehicle suspension system
    Patent number: 6857647
    Abstract: An air spring suspension for a rear axle of truck is stabilized using a trailing link constructed from a hollow, rectangular tube. The air spring is positioned between a portion of the trailing link extending beyond the rear axle and turning inwardly on the vehicle and the frame rails of the truck's chassis. An auxiliary spring is provided by a half leaf mounting beneath the trailing link. The suspension can provide cornering stabilization by providing a connecting link between the ends of the trailing links.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: February 22, 2005
    Assignee: International Truck Intellectual Property Company, LLC
    Inventors: Daniel W. Johnsman, James J. Korson
  • Vehicle suspension system
    Publication number: 20040080136
    Abstract: An air spring suspension for a rear axle of truck is stabilized using a trailing link constructed from a hollow, rectangular tube. The air spring is positioned between a portion of the trailing link extending beyond the rear axle and turning inwardly on the vehicle and the frame rails of the truck's chassis. An auxiliary spring is provided by a half leaf mounting beneath the trailing link. The suspension can provide cornering stabilization by providing a connecting link between the ends of the trailing links.
    Type: Application
    Filed: October 29, 2002
    Publication date: April 29, 2004
    Inventors: Daniel W. Johnsman, James J. Korson