Patents Assigned to Marilyn F. Hirsch
  • Patent number: 4777478
    Abstract: The present invention discloses an apparatus for monitoring persons, pets, things and the like including a monitored unit and a monitoring unit each having a transmitter and receiver. The monitored unit is adapted to transmit a periodic signal while the activities of the monitored object coincide with various threshold conditions. The monitored unit includes a plurality of indicators either visual or audio which inform the operator that the monitored unit has exceeded various threshold conditions. The monitoring unit includes a reset transmitter for actuating the monitored unit so that it produces either a continuous signal or a periodic signal. The monitoring unit further includes a homing mechanism automatically actuated upon receipt of either a continuous signal or an alarm signal by its receiver.
    Type: Grant
    Filed: May 6, 1987
    Date of Patent: October 11, 1988
    Assignees: Gordon S. Hirsch, Marilyn F. Hirsch
    Inventors: Gordon S. Hirsch, Marilyn F. Hirsch, Paul W. Hansen