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