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.

Abstract: A method for fluid pressure analytical electronic heat and fire detection, and a corresponding heat detector, used for detecting heat and fire, having no moving component, such as a valve, switch, membrane, diaphragm, or similar actuatable device of moving parts, for effecting activation of a warning or alarm signal indicating a condition of excessive heat or fire. The analytical electronic heat detection mechanism is based on electronic circuitry including at least one fluid pressure transducer, logic, and other cooperatively functioning electronic components, for highly accurately and reproducibly, first analyzing a potential condition, and then logically determining, an actual condition of excessive heat or fire. The electronic heat detection mechanism is fully functional, by having at least one fluid chamber closed to any external source of fluid pressure. The invention includes an automatic electronic testing procedure for naturally stimulating the heat detection mechanism for effecting operation.