Patents by Inventor Steven A. Haglund

Steven A. Haglund 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).

  • Autonomous acoustic detonation device
    Patent number: 5202532
    Abstract: An autonomous detonation device comprising an acoustic sensor, a logic circuit, and an output circuit. The invention is capable of discriminating the acoustic signal of an explosion of a primary charge such that it will detonate an explosive shortly thereafter. The invention further incorporates a delay system for safety purposes.
    Type: Grant
    Filed: August 16, 1991
    Date of Patent: April 13, 1993
    Assignee: Alliant Techsystems Inc.
    Inventors: Steven A. Haglund, Dennis L. Kurschner, Kenneth W. Paulson