Patents by Inventor Axel Erlebach

Axel Erlebach 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).

  • Acceleration threshold sensor
    Patent number: 6539798
    Abstract: An acceleration threshold sensor includes a supporting device, a seismic mass, and a connecting device with the aid of which the seismic mass is attached to the supporting device. The connecting device is provided with a predetermined breaking point interrupting the connection between the seismic mass and the supporting device when said seismic mass is subjected to an acceleration exceeding a predetermined acceleration. This sensor has a simple structural design, can be produced at a reasonable price and is always ready to carry out a measurement. Additionally, this sensor is able to store, without any auxiliary power, that it has been subjected to an acceleration exceeding a predetermined acceleration.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: April 1, 2003
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V.
    Inventors: Wolfram Geiger, Heinz Kück, Axel Erlebach, Wolf-Joachim Fischer