Patents by Inventor Stefan Wiesbaum

Stefan Wiesbaum 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).

  • Device for testing internal pressure of a gas reservoir of an airbag inflator
    Patent number: 6550335
    Abstract: A device for testing the inflation state of an cold gas inflator for an airbag has a gas reservoir that is filled with gas at a high pressure, in particular an inert gas. Oscillations of frequencies varying within a particular frequency range are generated at an exterior surface the filled gas reservoir by an oscillation transmitter and the resonance frequency is measured using an oscillation sensor. A comparator compares the measured resonance frequency with a resonance frequency that was determined at the gas reservoir filled with the volume of gas. The oscillation transmitter and the oscillation sensor are integrated in a unit such that the generation and frequency measuring of the oscillations are carried out at locations on the exterior surface of the gas reservoir that are distanced from one another with respect to a longitudinal axis of the gas reservoir.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: April 22, 2003
    Assignee: Breed Automotive Technology, Inc.
    Inventors: Dieter Weber, Stefan Wiesbaum
  • Device for testing pressure in a gas reservoir
    Publication number: 20020184953
    Abstract: A device for testing the inflation state of an cold gas inflator for an airbag has a gas reservoir that is filled with gas at a high pressure, in particular an inert gas. Oscillations of frequencies varying within a particular frequency range are generated at an exterior surface the filled gas reservoir by an oscillation transmitter and the resonance frequency is measured using an oscillation sensor. A comparator compares the measured resonance frequency with a resonance frequency that was determined at the gas reservoir filled with the volume of gas. The oscillation transmitter and the oscillation sensor are integrated in a unit such that the generation and frequency measuring of the oscillations are carried out at locations on the exterior surface of the gas reservoir that are distanced from one another with respect to a longitudinal axis of the gas reservoir.
    Type: Application
    Filed: April 30, 2002
    Publication date: December 12, 2002
    Inventors: Dieter Weber, Stefan Wiesbaum