Patents by Inventor Michael D. Shields

Michael D. Shields 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).

  • System and method of acoustic detection and location of fire sprinkler water discharge
    Patent number: 7797116
    Abstract: A system and method to detect acoustic signals from fire sprinkler heads discharging water and to locate such devices in a public building, airport, sports stadium or other structure which can include a system to measure speech intelligibility. Time and frequency domain analysis are carried out to establish the presence of signals characteristic of water discharge from a fire sprinkler.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: September 14, 2010
    Assignee: Honeywell International Inc.
    Inventors: Andrew G. Berezowski, Walter Heimerdinger, Charles R. Obranovich, John A. Phelps, Michael D. Shields, Philip J. Zumsteg
  • System and method of acoustic detection and location of fire sprinkler water discharge
    Publication number: 20080103768
    Abstract: A system and method to detect acoustic signals from fire sprinkler heads discharging water and to locate such devices in a public building, airport, sports stadium or other structure which can include a system to measure speech intelligibility. Time and frequency domain analysis are carried out to establish the presence of signals characteristic of water discharge from a fire sprinkler.
    Type: Application
    Filed: October 12, 2006
    Publication date: May 1, 2008
    Inventors: Andrew G. Berezowski, Walter Heimerdinger, Charles R. Obranovich, John A. Phelps, Michael D. Shields, Philip J. Zumsteg