Abstract: A fully mechanical pneumatic line-type excessive heat or/and fire detector, and, system, methods, and applications thereof, for detecting and warning of conditions of excessive heat or/and fire. The detector includes a detector testing switch apparatus for testing operable condition and status of the excessive heat or/and fire detector, and is operatively connectable to an externally located system control device, as an overall detection system. The detector is automatically or manually activated. The system includes the excessive heat or/and fire detector. Detector and system are configured and operable according to rate of temperature rise or/and fixed temperature type detection modes. Applicable in a wide variety of environments, such as of vehicle engines or machine, which may involve generation of excessive heat or/and fire, where there is need to detect and warn of a condition of excessive heat or/and fire, in a practical, reliable, robust, and cost effective manner.

Abstract: A fully mechanical pneumatic line-type excessive heat or/and fire detector, and, system, methods, and applications thereof, for detecting and warning of conditions of excessive heat or/and fire. The detector includes a detector testing switch apparatus for testing operable condition and status of the excessive heat or/and fire detector, and is operatively connectable to an externally located system control device, as an overall detection system. The detector is automatically or manually activated. The system includes the excessive heat or/and fire detector. Detector and system are configured and operable according to rate of temperature rise or/and fixed temperature type detection modes. Applicable in a wide variety of environments, such as of vehicle engines or machine, which may involve generation of excessive heat or/and fire, where there is need to detect and warn of a condition of excessive heat or/and fire, in a practical, reliable, robust, and cost effective manner.