Patents
Patents for G08B 17 - Fire alarms; Alarms responsive to explosion (10,975)
06/1994
06/08/1994CN1087739A Ion smoke-sensitive detector capable to find out functional failure
06/01/1994CN2167418Y Fire detecting alarm device
05/1994
05/25/1994CN2166492Y Sound alarming device for fire
05/18/1994CN2165489Y Automatic alarm fire-extinguisher
05/17/1994US5313185 Temperature sensing cable device and method of making same
05/11/1994EP0596500A1 Smoke detecting apparatus for fire alarm
05/10/1994US5311167 UV/IR fire detector with dual wavelength sensing IR channel
05/10/1994CA2015090C Method and apparatus for detecting flame
04/1994
04/28/1994WO1994008660A1 Process and device for the speedy and automatic detection of forest fires
04/27/1994CN2163410Y Integral fire disaster alarming device
04/26/1994US5307051 Night light apparatus and method for altering the environment of a room
04/20/1994EP0592923A1 Electrical unit with address verification
04/16/1994CA2104994A1 Electrical unit with address verification
04/12/1994US5302837 Photoelectric smoke detector with expanded visual field
04/06/1994EP0589922A1 Method and device for measuring the smoke concentration in air
04/05/1994US5300923 Apparatus and method for disabling a smoke detector when using a smoke-emanating apparatus
03/1994
03/29/1994US5298223 Connecting common electrode with gate terminal of transistor
03/23/1994EP0588753A1 Method for detecting a fire condition
03/23/1994EP0588232A1 Optic smoke detector
03/23/1994EP0587898A1 Fire alarm
03/23/1994CN1084274A Alarm detecting agent and its prepn.
03/10/1994DE4307585C1 Compensating for air humidity in stray light signal unit for fire alarm system - contg. first light transmitter with associated optic and light receiver with associated optic with its output signal representing measured value of smoke density
03/09/1994CN2158555Y Alarm for fire-proof function
03/08/1994US5293049 Analyzing a scatter signal from an optical particle counter
03/02/1994EP0281633B1 Signal sending circuit of a disaster prevention system
03/02/1994CN1023880C Preparation method for standard air and its apparatus
03/01/1994CA1327390C Apparatus and method for detecting the presence of a burner flame
02/1994
02/22/1994US5289275 Surveillance monitor system using image processing for monitoring fires and thefts
02/22/1994US5289165 Smoke alarm apparatus
02/17/1994WO1994003792A1 Aerosol discriminator
02/16/1994EP0583131A1 Flame detection method and apparatus
02/16/1994EP0582975A1 Automatic fire annunciator
02/16/1994CN1081922A Monitor and communication system for forest fire
01/1994
01/26/1994EP0580110A1 Smoke detecting apparatus for fire alarm
01/25/1994US5281954 Device for replacing battery in smoke alarm
01/25/1994US5281951 Fire alarm system and method employing multi-layer net processing structure of detection value weight coefficients
01/18/1994US5280273 Toxic gas detector system having convenient battery and sensor replacement
01/18/1994US5280272 Fire alarm system which distinguishes between different types of smoke
01/18/1994CA2013610C Scheme for power conservation in fire alarm system
01/17/1994WO1994018546A1 Improved diffusion-type gas sample chamber
01/12/1994EP0578189A1 Optic smoke detector
01/05/1994CN1080421A Ionization type smoke detector
01/04/1994US5276433 Methods and apparatus for temperature sensing
12/1993
12/23/1993WO1993025986A1 Apparatus and method for a smoke alarm device with integrated testing circuits
12/22/1993EP0574549A1 Early warning reactive gas detection system
12/21/1993CA1325463C Assembly for mounting luminescent and light receiving elements in a photocell-type detector
12/09/1993WO1993022630A3 Device for testing the operability of a system for detecting heat-radiating particles carried in a particle stream
12/08/1993CN2148902Y Automatic monitoring safety device for combustion-gas stove
12/08/1993CN1079323A Fire detector
12/01/1993EP0571843A1 Fire detector
12/01/1993EP0571842A1 Ionization type smoke detector
12/01/1993EP0571841A1 Sensitivity measuring apparatus for use with a fire detector
11/1993
11/30/1993US5267180 Fire alarm system having prestored fire likelihood ratio functions for respective fire related phenomena
11/25/1993WO1993023736A1 Improvements relating to smoke detection scanning apparatus
11/25/1993WO1993023735A1 Gas sampling point for smoke/pollution detection systems
11/24/1993EP0571077A2 Fluid pollution monitor
11/24/1993EP0570431A1 Detector with indicator light
11/24/1993CN2147599Y 电火探测器 Electric fire detector
11/23/1993US5264668 Smoke detector muffling device
11/23/1993US5263543 External fire prevention system
11/18/1993EP0569712A1 Fire detector
11/18/1993EP0374237B1 Radiation detector system
11/11/1993WO1993022630A2 Device for testing the operability of a system for detecting heat-radiating particles carried in a particle stream
11/09/1993US5260765 Beam alignment apparatus and method
11/09/1993US5260691 Fire alarm device accompanied with air conditioner
11/09/1993US5260687 Combined method of determining fires
11/03/1993EP0567823A1 Ionization type smoke detector
11/03/1993EP0567820A1 Detector Base
11/03/1993EP0567791A1 Smoke and vapour detector for microwave oven
11/03/1993CN2145383Y Siren for integrated circuit
10/1993
10/28/1993DE4304890A1 Detecting measurement parameter of textiles fibres e.g. cotton flowing in pipe - separating ideal transport flow into ideal measurement flows of smaller cross=section and recombining.
10/27/1993CN2144746Y Automatic alarm cut-off device for gas leakage
10/27/1993CN1077811A 检测器基座 Detector base
10/27/1993CN1077810A Fike detector
10/27/1993CN1077809A Ionization type smoke detector
10/26/1993US5257013 Protecting UV flame detecting apparatus
10/19/1993US5254975 Compensation type heat sensor
10/19/1993US5254877 Distributed power supply system
10/14/1993WO1993020544A1 Fire crisis management expert system
10/13/1993EP0565034A2 Distributed power supply system
10/13/1993EP0564900A1 Fire-alarm system
10/13/1993CN1077300A Fire-alarm system
10/10/1993CA2089958A1 Distributed power supply system
10/06/1993EP0563340A1 Fire-detecting device
10/05/1993CA1322781C Method of detecting fire in an early stage
09/1993
09/21/1993US5246397 Spacer rack for smoke detecton having separable sections
09/16/1993WO1993018494A1 Thermal condition sensor system for monitoring equipment operation
09/15/1993CN2142214Y Fire alarm by water flow
09/08/1993EP0559065A1 Fire indicating device
09/07/1993US5243330 Fire detector system and method
09/07/1993US5243329 Smoke alarm for use with an electronic timing device
08/1993
08/25/1993CN1075549A Improved gas sample chamber
08/17/1993US5237512 Electromagnetic radiation
08/17/1993US5237308 Supervisory system using visible ray or infrared ray
08/10/1993US5235323 Fire alarm with electric and non-electric annunciators
08/05/1993WO1993015577A1 Fire alarm
07/1993
07/28/1993EP0343235B1 Real time adaptive round discrimination fire sensor
07/27/1993US5231378 Particle detection which senses scattered light
07/27/1993US5231377 Electronic close damper alert unit
07/24/1993CA2060099A1 Stove sensor
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