Patents by Inventor Craig S. Trommler

Craig S. Trommler 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).

  • Digital piezoresistive pressure transducer
    Patent number: 4958520
    Abstract: In a digital transducer, the output of a piezoelectric transducer bridge is coupled to the input of a comparator whose output switches between two predetermined states. A series of digital values is generated in response to the state of the comparator output and is fed back to balance the bridge. Stored digital values control the span of the transducer.
    Type: Grant
    Filed: November 1, 1989
    Date of Patent: September 25, 1990
    Assignee: Bourns Instruments, Inc.
    Inventors: Craig S. Trommler, Mark D. Finefrock