Patents Assigned to Pyroguard Limited
  • Failsafe phial-type fire extinguishing system
    Patent number: 5361847
    Abstract: A fail-safe phial-type fire extinguishing system is intended to be activated when the environment in which at least a first part of the system (namely, a detector or sensor) is situated reaches a first predetermined condition, and is activated as a fail-safe measure when the environment in which at least a second part of the system (namely, the phial) is situated reaches a second predetermined condition, the system including a fire extinguisher, a detector or sensor, and an extinguisher activator including a heater.
    Type: Grant
    Filed: March 24, 1993
    Date of Patent: November 8, 1994
    Assignee: Pyroguard Limited
    Inventor: Graham B. Phelps