Patents by Inventor Alan G. Peterson

Alan G. Peterson 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).

  • Padlock with tamper alarm
    Patent number: 4556872
    Abstract: A padlock contains a battery connected by electrical circuitry and switches to an alarm sounding device which sounds an alarm when someone attempts to force open or sever the lock shackle or when someone attempts to remove the battery in an unauthorized manner. A test signal of momentary duration is automatically sounded each time the lock is opened or closed in an authorized manner, and this indicates whether the alarm system is operative.
    Type: Grant
    Filed: August 18, 1983
    Date of Patent: December 3, 1985
    Assignee: John F. Masoncup
    Inventors: John F. Masoncup, Eric O. Peterson, Alan G. Peterson