Patents Assigned to Robert W. Kratt
  • Remote intrusion alarm condition advisory system
    Patent number: 4994787
    Abstract: A sensor for monitoring the status of an alarm system is disclosed. The sensor includes a base station at the location of the alarm system and arranged to respond to an alarm condition. When an alarm occurs, the base station latches the alarm condition and retains it until it is manually reset. A remote station includes a transceiver for interrogating the base station to determine whether an alarm condition has occurred. The remote unit may also be used to arm or disarm the alarm system, and to operate other controllable devices.
    Type: Grant
    Filed: May 25, 1989
    Date of Patent: February 19, 1991
    Assignee: Robert W. Kratt
    Inventors: Robert W. Kratt, James C. Sprout