Patents Assigned to Harrington Signal Incorporated
  • Manual modular pull station
    Patent number: 5760678
    Abstract: A pull box for an emergency alarm system is disclosed having a modular construction that accommodates one or more optional modules in order to provide a wide variety of possible configurations. Also, the basic design of the pull station provides for its resetting without requiring a cover of the pull station to be open. As part of the optional modules, the pull station may be configured to provide both local and general alarm signals, with the general alarm signal capable of being activated only by authorized personnel.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: June 2, 1998
    Assignee: Harrington Signal Incorporated
    Inventors: Myron F. Pavlacka, Robert L. Rankin