Patents by Inventor David Matthew Mantey

David Matthew Mantey 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).

  • High and low side driver tests for airbag module
    Patent number: 6597181
    Abstract: A method of testing a high-side driver and a low-side driver in an airbag squib circuit includes preliminary testing of squib resistance and squib leakage for a plurality of trials. Next, one of the drivers is turned on while keeping the other one of the drivers off. A current-limited power supply supplies an intermediate voltage to a squib terminal and the voltage at the terminal is continuously compared with a predetermined voltage range which includes the intermediate voltage. The one driver is turned off in response to the voltage at the point being outside the predetermined voltage range, thereby detecting that the one driver is operating properly. If the voltage at the point remains in the predetermined voltage range for a predetermined time period, then the one driver is turned off and an indication is made that the one driver has failed. If the first driver passed, then the other driver is tested in the same manner.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: July 22, 2003
    Assignee: Autoliv ASP, Inc.
    Inventors: Colm Peter Boran, Paul Douglas Bingham, Steven John Bigham, David Matthew Mantey
  • High and low side driver tests for airbag module
    Publication number: 20020050826
    Abstract: A method of testing a high-side driver and a low-side driver in an airbag squib circuit includes preliminary testing of squib resistance and squib leakage for a plurality of trials. Next, one of the drivers is turned on while keeping the other one of the drivers off. A current-limited power supply supplies an intermediate voltage to a squib terminal and the voltage at the terminal is continuously compared with a predetermined voltage range which includes the intermediate voltage. The one driver is turned off in response to the voltage at the point being outside the predetermined voltage range, thereby detecting that the one driver is operating properly. If the voltage at the point remains in the predetermined voltage range for a predetermined time period, then the one driver is turned off and an indication is made that the one driver has failed. If the first driver passed, then the other driver is tested in the same manner.
    Type: Application
    Filed: October 31, 2001
    Publication date: May 2, 2002
    Inventors: Colm Peter Boran, Paul Douglas Bingham, Steven John Bigham, David Matthew Mantey