Patents by Inventor Dirk J. Hardtmann

Dirk J. Hardtmann 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: 6336653
    Abstract: This invention is an Inflatable Tubular Bolster (ITB) which prevents or limits injury to an occupant of a motor vehicle due to a frontal or semi-frontal crash. In particular, the invention protects the front seat occupant's legs and lower torso by providing a cushioned barrier that absorbs impact energy and restricts the occupant's lower body from moving forward and into or underneath the instrument panel and toward the foot well. This invention can be effective in any vehicle where an occupant's lower body is subject to crash injury from a dashboard, instrument panel, or similar structure.
    Type: Grant
    Filed: May 21, 1997
    Date of Patent: January 8, 2002
    Assignee: Simula, Inc.
    Inventors: Gershon Yaniv, David J. Romeo, Dirk J. Hardtmann
  • Patent number: 5839753
    Abstract: A seat restraint system whose torso belt inflates upon impact to protect the occupants of a vehicle such as an automobile. The inflating component of the present invention is a braided tube linked to a gas generator and crash sensor. When an impact is detected, the gas generator is ignited, inflating the braided tube. As the braided tube inflates, the diameter of the tube increases significantly and its length decreases significantly, due to the orientation of the fibers comprising the braided tube. The contracting tube pretensions the seat belt system by pulling any slack out of the seat belt systems. The inflated structure restricts the forward motion of an occupant and distributes crash loads over a larger occupant surface area to reduce both primary and secondary injuries. In a side impact the inflated structure restricts occupant motion, distributes crash loads and provides head protection.
    Type: Grant
    Filed: March 31, 1997
    Date of Patent: November 24, 1998
    Assignee: Simula Inc.
    Inventors: Gershon Yaniv, David J. Romeo, Dirk J. Hardtmann, Lindley W. Bark
  • Patent number: 5480181
    Abstract: The present invention is a tubular structure which inflates upon side or oblique vehicle impact to protect the occupants of a vehicle such as an automobile. The structure is mounted in its undeployed state along the periphery of the vehicle's side pillars and roof rail. The primary component of the present invention is a braided tube linked to a gas generator. When a side impact is detected, the gas generator is ignited, inflating the braided tube. As the braided tube inflates, the diameter of the tube increases and its length decreases. The tube then pulls out of its storage location and forms a taut, semi-rigid structural member across the vehicle's side window.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: January 2, 1996
    Assignee: Simula Inc.
    Inventors: Lindley W. Bark, Gershon Yaniv, David J. Romeo, Dirk J. Hardtmann, Gregory A. Mowry
  • Patent number: 5464246
    Abstract: The present invention is a torso protection system having braided tubes that inflate upon side or oblique impact to protect the torso of a seated vehicle occupant. Prior to inflation, the braided tubes are mounted in the undeployed state along both sides of the occupant's seat. When an impact is detected, a gas generator generates, inflating the braided tubes. As the braided tubes inflate, their diameters increase and their lengths decrease substantially. The braided tubes then pull out of their storage locations and form bolsters on either side of the seated occupant. The inflated tubes prevent the torso of the occupant from directly colliding with interior side structures of the vehicle and restrict the lateral motion of the occupant.
    Type: Grant
    Filed: June 20, 1994
    Date of Patent: November 7, 1995
    Assignee: Simula Inc.
    Inventors: Mynor Castro, Gershon Yaniv, Dirk J. Hardtmann, David J. Romeo