Resources Contact Us Home
Environmental detection system useful for fire detection and suppression

Image Number 14 for United States Patent #5105371.

An environmental detection system particularly useful for fire detection and suppression is provided which ensures high reliability in operation and high reliability in preventing false operation. The preferred system includes a microprocessor-based, software-governed, control panel connected to one or more detector loops. Each loop includes a plurality of parallel-coupled, addressable detectors which send analog signals to the control panel representative of an environmental parameter such as smoke obscuration along with reference and identification signals. The preferred system provides automatic calibration and test of the detectors, automatic testing under load of the backup batteries, flexibility in defining the protective scheme, and storage of history information concerning system alarms, and troubles. The preferred system also verifies alarm conditions before actuating an alarm or discharging a fire suppressant.

  Recently Added Patents
Efficient relay automatic repeat request procedure in broadband wireless access system
Audio and music data transmission medium and transmission protocol
Methods, systems, and computer program product for virtually modifying surface region curvature to detect protrusions
Monitoring system
Ice data collection system
Thermal conductivity and phase transition heat transfer mechanism including optical element to be cooled by heat transfer of the mechanism
Multibranched polymer and method for producing the same
  Randomly Featured Patents
Differential negative resistance memory
Structure for mounting an exhaust manifold to the body of an internal combustion engine
Spacer bar mechanism
In utero oral nucleic acid immunization
Deposition method including recycled solid particles
Systems and methods for call replay
Coloring method for synthetic resin
Multifunctional monomers and their use in making cross-linked polymers and porous films
Downhole apparatus with a swellable support structure
Quasi resonant type switching power supply apparatus with overcurrent limiting