Fluid valve assembly with tubular housing - has inner circumferential grooves and expanding ring for axially securing valve
EP0421100A1
Procedure and equipment for recognizing dangerous conditions in a room
DE4023649A1
Procedure and equipment for detection of dangerous gases - uses radiation source and detectors to provide raw data which is compared with reference values
EP0422317A1
Apparatus for detecting fluid currents through a conduit
DE3935238A1
Air guidance system, in particular for a fire alarm device
DE3924250A1
FIRE DETECTOR
DE3924252A1
Fire detection equipment for sensing source of heat - uses array of temperature sensors with microprocessor control to detect fires and store information
DE3817607A1
Method for triggering UV-sensitive receiving elements
DE3806993A1
Danger detecting system (danger warning system, alarm system)
DE3706986A1
Method for evaluating the UV component in the flame spectrum by means of an electronic flame detector
DE3608393A1
Optical smoke alarm
DE3017144A1
Opto-electric fire detection system - uses optical detector to identify sparks in saw dust extraction duct
DE2916086A1
Pneumatic conveyor spark detector - has opto-electronic transducer with light pipe in duct terminating with cone facing flow
DE2914588A1
Test unit for sawdust extractor spark alarm - simulates flying sparks by diode emitted flashes with accurate rise and fall rates
DE2854220A1
Gas sensor installation to detect failure in goods supply conveyor - has air pumps and sensors adjacent to belts, and rollers with connection to central alarm
DE2852971A1
Fire alarm responding to flame radiation and individual sparks - is esp. for pipelines and chimneys and compensates for day-night radiation variations
DE2857333A1
REPORTING DEVICE
DE2846310A1
Fire alarm system for factory or warehouse - has each detector incorporated in air duct with air intakes at half of ceiling height
DE2826141A1
Frost protecting suspended sprinkler head - has branch connection sealed by elastic membrane supported against piercing by granulate filling
DE2804524A1
Fire alarm with two=wire lines - uses lines which are connected through special wire to common evaluation device which signals alarm operation
