Patents by Inventor Roman V. Kruchowy

Roman V. Kruchowy 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).

  • Magnetic amplifier housing and detector for an improved tamper alarm system
    Patent number: 4866426
    Abstract: A magnetic amplifier housing uses a base, dowel and shunt to magnetizable terial to concentrate the magnetic field of a ring magnet through a Hall Effect transistor to provide an improved detector device with increased gain. The detector device causes polarity reversal when tampered with, ensures positive mechanical alignment of the transistor and mechanical components, and protection of the transistor from mechanical damage.
    Type: Grant
    Filed: June 17, 1988
    Date of Patent: September 12, 1989
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Mark M. Evans, Roman V. Kruchowy