Patents by Inventor Johann Schweren

Johann Schweren 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: 5944282
    Abstract: A landing shock absorber for aircraft including brake parachutes and comprising a landing cushion for creating damping upon impact of the aircraft, the landing cushion having an inflatable inner bag including a pressure-tight, plastically deformable sheet. The inner bag defines a plurality of inflatable air chambers, and at least one opening between the chambers for establishing communication between the chambers. The landing cushion further includes an outer bag enclosing the inner bag and having a greater internal volume that an internal volume of the inflatable air chambers of the inner bag when the chambers are inflated, the outer bag including a tear-resistant fabric defining a plurality of throttle openings therein.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: August 31, 1999
    Inventors: Hans-Juergen Clausnitzer, Johann Schweren