Patents by Inventor David T. Schumann

David T. Schumann 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).

  • Gas generating system
    Patent number: 8783715
    Abstract: A housing unit for a gas generating system is provided. The housing unit includes a housing and a thermal barrier covering a portion of the housing exterior. A gas generating system and a vehicle occupant protection system incorporating the housing unit are also provided.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: July 22, 2014
    Assignee: TK Holdings Inc.
    Inventors: Derrick O. Kelley, Robert J. Schubert, Jr., David T. Schumann, Steven N. Grucz, Federico Moreno, Larissa D. Pfendt
  • Gas generator with hybrid spring
    Patent number: 7712780
    Abstract: The present invention provides an inflator for an inflatable restraint system in an automobile, or more generally, a gas generator. The inflator includes an inflator body having a plurality of inflation apertures and defining a first combustion chamber wherein a first propellant charge is positioned. At least one annular spring containing a cushion is provided for maintaining the integrity of the shape of the propellant charge.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: May 11, 2010
    Assignee: TK Holdings, Inc.
    Inventors: Wesley D. Pack, David T. Schumann
  • Gas generating system
    Publication number: 20100045009
    Abstract: A housing unit for a gas generating system is provided. The housing unit includes a housing and a thermal barrier covering a portion of the housing exterior. A gas generating system and a vehicle occupant protection system incorporating the housing unit are also provided.
    Type: Application
    Filed: August 24, 2009
    Publication date: February 25, 2010
    Inventors: Derrick O. Kelley, Robert J. Schubert, JR., David T. Schumann, Steven N. Grucz, Federico Moreno, Larissa D. Pfendt
  • Gas generator with hybrid spring
    Publication number: 20080143090
    Abstract: The present invention provides an inflator for an inflatable restraint system in an automobile, or more generally, a gas generator. The inflator includes an inflator body having a plurality of inflation apertures and defining a first combustion chamber wherein a first propellant charge is positioned. At least one annular spring containing a cushion is provided for maintaining the integrity of the shape of the propellant charge.
    Type: Application
    Filed: December 17, 2007
    Publication date: June 19, 2008
    Inventors: Wesley D. Pack, David T. Schumann