| Patents for G08B 17 - Fire alarms; Alarms responsive to explosion (10,975) |
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| 11/15/1988 | US4785293 Alarm system prior to firedoor drop |
| 11/15/1988 | US4785292 Dual spectrum frequency responding fire sensor |
| 11/15/1988 | US4785288 Modular smoke detector |
| 11/15/1988 | US4785283 Detecting system and detector |
| 11/09/1988 | EP0290413A2 Detector for sensing and/or measuring passing objects |
| 11/09/1988 | EP0290412A2 A measuring head for detection of particles |
| 11/08/1988 | US4783592 Real time adaptive round discrimination fire sensor |
| 11/08/1988 | CA1244534A1 Thermal alarm |
| 11/01/1988 | US4782334 Vapor or gas detector and alarm system |
| 10/18/1988 | US4779078 Combustible gas detector |
| 10/13/1988 | DE3710265A1 System for the early detection of fires covering large areas |
| 10/12/1988 | CN87210463U Explosion-proof gas sensitive switch |
| 10/12/1988 | CN87210326U Multifunctional safe controller for air automatic exchanging |
| 10/12/1988 | CN87205397U Explosion-proof equipment |
| 10/06/1988 | WO1988007733A1 Explosives detection system for an aircraft |
| 10/05/1988 | CN88101545A A fire alarm system |
| 09/27/1988 | US4774502 Environmental abnormality detection apparatus |
| 09/27/1988 | US4773350 Fusible temperature signaling sensor |
| 09/27/1988 | CA1242343A1 Light absorbers |
| 09/21/1988 | EP0177511B1 Dual spectrum frequency responding fire sensor |
| 09/20/1988 | CA1242257A1 Photoelectric smoke detector |
| 09/20/1988 | CA1242256A1 Photoelectric smoke detector circuitry |
| 09/15/1988 | DE3706986A1 Method for evaluating the UV component in the flame spectrum by means of an electronic flame detector |
| 09/15/1988 | DE3706894A1 Compact gas warning safety unit |
| 09/14/1988 | EP0281633A1 Signal sending circuit of a disaster prevention system |
| 09/13/1988 | US4771270 Temperature sensitive fire alarm unit |
| 09/06/1988 | US4769775 Microprocessor-controlled fire sensor |
| 09/06/1988 | US4769550 Dual scattering-type smoke detector with cross-checking |
| 08/30/1988 | US4767913 Automatic gas detector for arc welder |
| 08/24/1988 | EP0279792A2 Control system in the visible and/or infrared region, especially suitable for fire prevention |
| 08/23/1988 | US4765413 Fire and explosion detection apparatus |
| 08/23/1988 | US4765244 Apparatus for the detection and destruction of incoming objects |
| 08/16/1988 | US4764758 Incipient fire detector II |
| 08/16/1988 | CA1240759A1 Gas sensor and detection system comprising such a sensor |
| 08/10/1988 | EP0277685A2 Fire sensing and suppression method and system responsive to optical radiation and mechanical wave energy |
| 08/10/1988 | EP0277185A1 Ultra-violet flame detector with analog output |
| 08/09/1988 | US4763115 Fire or smoke detection and alarm system |
| 08/03/1988 | EP0276892A2 Fire sensing and suppression method and system responsive to optical radiation and mechanical wave energy |
| 08/03/1988 | CN87107305A Labyrinthic anti-explosion device for bitumite-spraying in blast-furnace |
| 08/02/1988 | US4761639 Lightweight, compact detector of sudden changes in concentration of a gas |
| 08/02/1988 | US4761557 Ionization-type smoke detector |
| 07/20/1988 | CN86206100U Liquified gas leakage alarm |
| 07/19/1988 | US4758827 Duct smoke detector |
| 07/19/1988 | US4758733 A labyrinthine light scattering-type smoke detector |
| 07/13/1988 | EP0274275A2 Detection of electromagnetic radiation |
| 07/12/1988 | US4757306 Separation type light extinction smoke detector |
| 07/12/1988 | US4757303 Alarm system |
| 07/07/1988 | DE3643813A1 Smoke detector for a ventilation duct |
| 07/05/1988 | US4755797 Fire alarm apparatus |
| 07/05/1988 | US4755687 System and method for detecting flames |
| 06/28/1988 | US4754150 Photoelectric smoke detector |
| 06/21/1988 | US4752698 Emergency supervisory system |
| 06/08/1988 | EP0120917B1 Combustible vapor detection system |
| 06/07/1988 | US4750142 Flame detector |
| 06/07/1988 | US4749987 Analog fire detector and analog fire alarm system using the same |
| 06/07/1988 | US4749986 Collecting process of fire data and fire detector using the process and fire alarm system also using the process |
| 06/07/1988 | US4749871 Self-diagnostic projected-beam smoke detector |
| 06/07/1988 | US4749862 Scanning fire-monitoring system |
| 06/01/1988 | EP0268682A1 Fire alarm facility |
| 06/01/1988 | CN87209093U Household gas-leakage alarm device |
| 05/31/1988 | CA1237505A1 Detector apparatus of inflammable gas |
| 05/25/1988 | EP0268107A1 Home protection device against gas explosions |
| 05/17/1988 | US4745399 Device for generating an alarm signal in the event of an environmental abnormality |
| 05/11/1988 | CN87213417U Fire alarming device |
| 05/11/1988 | CN86106890A Omnibearing infrared warner |
| 05/10/1988 | US4744038 Fire detector equipped with a sensor |
| 05/04/1988 | CN87205183U Combustive gas detector |
| 05/03/1988 | US4742236 Flame detector for detecting phase difference in two different wavelengths of light |
| 05/03/1988 | CA1236196A1 Photoelectric combustion products detector with low power consumption and improved noise immunity |
| 04/27/1988 | EP0264856A2 Gas shutoff apparatus |
| 04/27/1988 | EP0264494A1 Detecting and control of contaminated air in dwellings |
| 04/26/1988 | US4740703 Ionization-type smoke detector |
| 04/26/1988 | CA1235775A1 Analog-type fire detector |
| 04/21/1988 | DE3634930A1 Method for monitoring rooms exposed to fire or explosion hazards |
| 04/20/1988 | CN87203671U Simply-constructed gas alarm |
| 04/06/1988 | CN87202719U Fire alarm with easy-melted insulator |
| 04/05/1988 | US4736105 Flame detector system |
| 04/05/1988 | CA1234896A1 Smoke detection apparatus |
| 03/30/1988 | CN87202775U Sprinkling bucket with functions of automatic alarming and extingushing fire |
| 03/24/1988 | WO1988002160A1 Signal sending circuit of a disaster prevention system |
| 03/22/1988 | US4733224 Detector system with multiple sensors each sensing different danger conditions |
| 03/15/1988 | CA1234199A1 Photoelectric smoke sensor |
| 03/08/1988 | US4730182 Combination heat-sensing fire detector |
| 03/02/1988 | EP0257325A1 Smoke detector for early fire detection |
| 03/01/1988 | US4728940 Pressure-loss over temperature sensor |
| 03/01/1988 | US4728801 Light scattering smoke detector having conical and concave surfaces |
| 03/01/1988 | US4728794 Radiation sensing arrangements |
| 02/25/1988 | WO1988001416A1 Ultra-violet flame detector with analog output |
| 02/24/1988 | CN87200925U 可燃气体报警器 Combustible gas alarm |
| 02/24/1988 | CN86207590U Warning device for detecting flammable goods |
| 02/23/1988 | US4727359 Analog fire sensor |
| 02/16/1988 | US4725820 Composite detector |
| 02/16/1988 | US4725819 Fire detection system |
| 02/11/1988 | DE3626472A1 Alarm, especially fire alarm |
| 02/09/1988 | US4724430 Fire detector |
| 02/03/1988 | EP0255117A1 Smoke detector for early fire detection |
| 02/02/1988 | CA1232343A1 Photoelectric smoke detector and alarm system |
| 01/28/1988 | DE3623959A1 Device for monitoring spaces subject to fire or explosion risks |
| 01/21/1988 | DE3348107C2 Smoke suction system of a line smoke alarm |
| 01/20/1988 | EP0253709A1 Monitoring installation with detectors in the form of a loop |