Patents by Inventor Craig Tieman

Craig Tieman 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).

  • Method and apparatus for measuring seat loading by strain gauge
    Patent number: 5942695
    Abstract: An existing vehicle seat design is equipped with strain gauges welded to structural seat members to sense occupant seated weight. A microprocessor compensates for preload on the sensors and multiplies each signal by an empirically determined gain, and then combines the gauge outputs. The combined output is low pass filtered to avoid motion induced errors. The measured occupant seated weight is used by decision logic to decide whether to allow passenger airbag deployment.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: August 24, 1999
    Assignee: Delco Electronics Corp
    Inventors: Shailendra Verma, Craig Tieman, Mahesh K. Chengalva, Duane Donald Fortune