Patents
Patents for G08B 17 - Fire alarms; Alarms responsive to explosion (10,975)
03/1987
03/03/1987US4647785 Function test means of photoelectric type smoke detector
03/03/1987US4647776 Discriminating fire sensor with thermal override capability
02/1987
02/26/1987WO1987001230A1 Fire sensor statistical discriminator
02/26/1987WO1986006859A3 Fire sensor cross-correlator circuit and method
02/17/1987US4644333 Gas sensor and detection system comprising such a sensor
02/17/1987US4644331 Fire alarm system
02/10/1987US4642615 Light-scattering type smoke detector
02/10/1987US4642471 Scattered radiation smoke detector
02/03/1987US4640628 Composite fire sensor
02/03/1987CA1217541A1 Method of and apparatus for signalling an alarm
01/1987
01/31/1987CN86105534A Remote automatic mutual control alarm device for fire
01/29/1987WO1987000667A1 Frame assembly of a photoelectric smoke sensor
01/29/1987WO1987000627A1 Assembly for mounting light-emitting element and light-receiving element in photoelectric smoke sensor
01/27/1987US4639605 Fire sensor device
01/27/1987US4639598 Fire sensor cross-correlator circuit and method
01/27/1987US4639210 Process for monitoring the heat gradient in a heat-producing system
01/27/1987CA1217284A1 Electrode insulating member for ionization fire alarm
01/20/1987US4638443 Gas detecting apparatus
01/20/1987US4638304 Environmental abnormality detecting apparatus
01/13/1987US4636776 Alarm system for space heating appliances
01/13/1987US4636649 Photoelectric smoke sensor terminal
12/1986
12/30/1986EP0205749A1 Fire alarm system
12/30/1986EP0119264B1 Discriminating fire sensor with thermal override capability
12/23/1986US4631412 Ionization smoke detector
12/23/1986US4630684 Fire sensing and suppression method and system responsive to optical radiation and mechanical wave energy
12/16/1986US4630038 In a gas stream
12/16/1986US4630037 Smoking violation detector
12/16/1986US4629992 Device for detecting the ionization level of a gas mixture controlled by electric arc
12/09/1986US4628301 Electrical circuit arrangements
12/02/1986US4626695 Photoelectric combustion products detector with low power consumption and improved noise immunity
11/1986
11/25/1986US4625200 Heat detection system
11/20/1986WO1986006859A2 Fire sensor cross-correlator circuit and method
11/18/1986US4623878 Christmas tree mounted smoke detector
11/18/1986US4623876 Alarm system to transmit detection information detected by a detector due to a radio system
11/18/1986US4623866 Cap and bracket assembly for thermostatic switch and method of manufacturing same
11/18/1986US4623788 Fiber optic system with self test used in fire detection
10/1986
10/29/1986CN85204022U Fire alarm device
10/22/1986CN85103159A Particle detector for detecting conflagration
10/21/1986US4618853 Fire detector
10/21/1986US4618777 Outer electrode with improved smoke entry
10/15/1986EP0197371A1 Fire detector arrangement with a suction system
10/15/1986EP0197257A1 Apparatus for detecting the presence of gases in a closed environment
10/14/1986US4617561 Emergency light and smoke alarm system
10/14/1986US4617560 Smoke or fire detector
10/14/1986US4616928 Photoelectric smoke detector with adjustable background signal
10/14/1986CA1212785A1 Ionization smoke detector
10/14/1986CA1212784A1 Device for detecting the ionization level in a gas controlled by an electric discharge
10/09/1986WO1986005908A1 Extender for smoke detector
10/07/1986US4616214 Security system
10/07/1986US4616138 Analog-type fire detector
10/07/1986US4616137 Optical emission line monitor with background observation and cancellation
09/1986
09/30/1986US4614968 Contrast smoke detector
09/16/1986US4612442 Passive infrared intrusion detection system
09/09/1986US4611200 Portable battery powered smoke detector and clock
09/09/1986CA1211183A1 Fire and explosion detection and suppression
08/1986
08/26/1986US4608556 Smoke detection apparatus
08/26/1986US4607915 Light absorbers
08/14/1986WO1986004708A1 Fire alarm system for living-rooms
07/1986
07/29/1986US4603255 Fire and explosion protection system
07/22/1986CA1208335A1 Smoke detector with a radiation source operated in a pulse-like or intermittent mode
07/22/1986CA1208334A1 Smoke detector
07/22/1986CA1208333A1 Smoke detector
07/22/1986CA1208332A1 Smoke detector with a radiation source operated in a pulse-like or intermittent mode
07/22/1986CA1208331A1 Smoke detector operating according to the radiation extinction principle
07/16/1986EP0187149A1 Fire sensing and suppression method and system responsive to optical radiation and mechanical wave energy.
07/16/1986CN85109338A Fire alarm sensing member
07/15/1986US4600314 Smoke detector cutoff timer
07/01/1986US4597451 Fire and explosion detection and suppression
06/1986
06/24/1986US4596975 Thermally insulative mounting with solid state device
06/24/1986US4596465 Scattered light type smoke detector
06/17/1986US4595914 Self-testing combustion products detector
06/10/1986US4594581 Fire alarm system
06/10/1986US4594512 Ionization type smoke detector
05/1986
05/27/1986CA1205138A1 Security alarm system
05/20/1986CA1204838A1 Chimney fire alarm device
05/07/1986CN85203013U Miner's lamp with methane alarm
04/1986
04/22/1986US4584485 Optical block in smoke detectors
04/15/1986US4582996 Electrode insulating member for ionization fire alarm
04/15/1986CA1203303A1 Device for the detection of foreign components in a gas and its applications
04/02/1986EP0175940A1 Photoelectric smoke detector
04/01/1986USRE32105 Forward scatter smoke detector
04/01/1986CA1202703A1 Correlation type flicker flamon
03/1986
03/26/1986EP0175032A1 Microprocessor-controlled fire sensor
03/18/1986US4577186 Fire detector
03/11/1986US4575715 High temperature alarm system with fusible link
03/11/1986US4575711 Alarm terminal device
02/1986
02/04/1986US4568926 Smoke detector
02/04/1986US4568924 Method of and apparatus for signalling an alarm
02/04/1986US4568923 Fire alarm system
01/1986
01/28/1986US4567477 Smoke detector switch indicator
01/28/1986US4567475 Gas or vapor alarm system including scanning gas sensors
01/28/1986US4567367 Method for detecting a source of heat, more particularly a forest fire in a watched area, and system for carrying out said method
01/16/1986WO1986000450A1 Fire sensing and suppression method and system responsive to optical radiation and mechanical wave energy
01/14/1986US4564762 Smoke detector
01/03/1986WO1986000179A1 Overheating alarm
12/1985
12/17/1985US4559526 Security alarm system
12/17/1985US4559453 Smoke detector with a radiation source operated in a pulse-like or intermittent mode
12/10/1985CA1197914A1 Fire alarm control system
12/04/1985EP0162921A1 Fiber optics system with self test capability
12/03/1985US4556873 Fire alarm system