| Patents for G08B 17 - Fire alarms; Alarms responsive to explosion (10,975) |
|---|
| 09/20/1989 | EP0333290A1 Device for monitoring the suction vent duct(s) of a smoke/gas detection system |
| 09/19/1989 | US4868546 Radon detector |
| 09/13/1989 | CN2044364U Optical fibre warner for fire disaster |
| 09/13/1989 | CN1035573A 气体报警器 Gas alarm |
| 09/12/1989 | US4866633 Gas shutoff apparatus |
| 09/12/1989 | US4866439 Explosives detection system for an aircraft |
| 09/12/1989 | US4866427 Temperature alarm for stoves |
| 09/12/1989 | US4866425 Detector for sensing and/or measuring passing objects |
| 09/12/1989 | US4866420 Method of detecting a fire of open uncontrolled flames |
| 09/08/1989 | WO1989008300A1 Apparatus for supervising objects with regard to overheating |
| 09/05/1989 | US4864141 Smoke detector with ionization chamber |
| 08/30/1989 | CN2043776U 报警器 Alarm |
| 08/30/1989 | CN1035197A Compressed gas device used as automatic fire alarm |
| 08/29/1989 | US4862148 Portable electric smoke detector/alarm flashlight |
| 08/29/1989 | US4862147 Smoke alarm with dropout smoke hood |
| 08/29/1989 | US4861998 Rapid fire-detection device for armored vehicles |
| 08/23/1989 | CN2043395U Explosion-isolating three-function full automatic fire-proof and fire extinguishing installation |
| 08/15/1989 | US4857895 Combined scatter and light obscuration smoke detector |
| 08/09/1989 | EP0111012B1 Ionization type of smoke sensor |
| 08/08/1989 | US4855718 Fire detection system employing at least one optical waveguide |
| 08/02/1989 | EP0187149B1 Fire sensing and suppression method and system responsive to optical radiation and mechanical wave energy |
| 08/01/1989 | US4853544 Heat-resistant case for an ionization-type smoke detector and method of making the same |
| 07/27/1989 | WO1989006806A1 Direction sensitive energy detecting apparatus |
| 07/25/1989 | US4851823 Fire alarm system |
| 07/25/1989 | US4851819 Photoelectric smoke detector with permanently fixed insect net |
| 07/19/1989 | EP0324295A2 Fire detecting device |
| 07/13/1989 | WO1989006412A1 Test initiation apparatus with continuous or pulse input |
| 07/13/1989 | DE3843297A1 Ionisationsrauchmelder Ionization Smoke Detector |
| 07/12/1989 | EP0323797A2 Heat collector |
| 07/11/1989 | CA1257356A1 Fire alarm system |
| 07/05/1989 | CN1033706A Multipurpose automatical fire precursor |
| 07/04/1989 | US4845474 Smoke and fire detector |
| 06/27/1989 | CA1256530A1 Labyrinthine light-scattering-type smoke detector |
| 06/20/1989 | US4841282 Smoke and liquid alarm |
| 06/13/1989 | US4839527 Optical-fibre smoke detection/analysis system |
| 06/13/1989 | US4838698 Extinction type detector |
| 06/06/1989 | US4837560 Smoke alarm controlled unlocking apparatus for window bars |
| 05/30/1989 | CA1254970A1 Photoelectric smoke detector |
| 05/24/1989 | EP0316542A1 Fusible link construction |
| 05/23/1989 | US4833458 Smoke and fire detector for remote sensing |
| 05/18/1989 | WO1989004529A1 Temporary desensitization technique for smoke alarms |
| 05/18/1989 | WO1989004528A1 Real time adaptive round discrimination fire sensor |
| 05/02/1989 | US4827247 Self-compensating projected-beam smoke detector |
| 05/02/1989 | US4827244 Test initiation apparatus with continuous or pulse input |
| 05/02/1989 | US4827239 Heat collector |
| 05/02/1989 | US4827133 Infrared space surveillance detector circuit |
| 04/26/1989 | CN1032596A Fire alarms receivers |
| 04/25/1989 | US4825196 Signal transmission circuit of fire/security protection system |
| 04/25/1989 | US4823861 Fire detection device for regenerative air heater |
| 04/18/1989 | US4823118 Fire sensor |
| 04/18/1989 | US4823114 A burner |
| 04/18/1989 | US4823015 Electrical interference free projected beam smoke detector |
| 04/11/1989 | US4820931 Wet bench flame and droplet detector |
| 04/06/1989 | WO1989003133A1 Monitoring device |
| 04/04/1989 | US4818970 For removal of asbestos materials |
| 04/04/1989 | CA1252172A1 Smoke detection apparatus |
| 03/29/1989 | EP0309407A1 Monitoring device |
| 03/28/1989 | US4816809 Speaking fire alarm system |
| 03/28/1989 | US4816808 Fire alarm system |
| 03/21/1989 | US4814766 Fire alarm and heat detection system and apparatus |
| 03/21/1989 | US4814748 Temporary desensitization technique for smoke alarms |
| 03/14/1989 | US4812827 Detector and light assembly |
| 03/14/1989 | US4812821 For the hearing impaired |
| 03/08/1989 | EP0156915B1 Ionization type smoke sensor |
| 03/07/1989 | CA1250931A1 Automatic fire extinguisher with infrared ray responsive type fire detector |
| 03/07/1989 | CA1250927A1 Fire detector and electrode arrangement thereof |
| 02/28/1989 | US4808977 Electromechanical evacuation exit indicating flag |
| 02/21/1989 | US4805701 Fire extinguisher and alarm apparatus |
| 02/21/1989 | US4805261 Resettable fire link |
| 02/07/1989 | US4803469 Fire alarm system |
| 02/01/1989 | CN2031952U Damage-proof alarm device with signal identification |
| 01/31/1989 | CA1249671A1 Ionization-type smoke detector |
| 01/26/1989 | WO1989000682A1 Gas-tightness control system |
| 01/24/1989 | US4800285 Flame detecting arrangement for detecting a flame through horizontal and vertical scanning of a supervisory region by using a photodetector |
| 01/18/1989 | EP0299410A2 Optical smoke detector |
| 01/12/1989 | DE3721414A1 Detector for heat sources having acoustic evaluation |
| 01/11/1989 | EP0298182A1 Fire detection method and device |
| 01/10/1989 | US4797664 Environmental abnormality detection apparatus |
| 01/10/1989 | US4796420 Fusible link construction |
| 01/04/1989 | CN2030095U Four-line type roving testing interface |
| 01/03/1989 | US4796205 Fire alarm system |
| 01/03/1989 | US4796018 Exit guiding system |
| 01/03/1989 | US4796015 Combination electric clock and smoke detector |
| 01/03/1989 | CA1248245A1 Self-testing combustion products detector |
| 12/28/1988 | EP0296634A2 Optical smoke detector in form of a cuboid |
| 12/28/1988 | CN88211499U Multifunctional fire alarm with multi-function |
| 12/28/1988 | CN88211461U Auto-closing device for preventing the leakage of fuel gas |
| 12/20/1988 | US4792797 Smoke detector having variable level sensitivity |
| 12/20/1988 | CA1247211A1 Discriminating fire sensor with thermal override capability |
| 12/20/1988 | CA1247208A1 Dual spectrum frequency responding fire sensor |
| 12/20/1988 | CA1247207A1 Fiber optics system with self test capability |
| 12/13/1988 | US4791414 Water-flow detector |
| 11/30/1988 | CN88100558A Using fire crackers as fire alarm |
| 11/29/1988 | US4788530 Remote switching device for smoke detector |
| 11/22/1988 | US4786811 Ionization type-smoke detector |
| 11/22/1988 | CA1245324A1 Fire/fault sensing using optical detector/pressure transducer combination |
| 11/17/1988 | WO1988009025A1 Personal smoke warning unit |
| 11/17/1988 | WO1988009024A1 Temperature compensated detector for sensing and/or measuring passing objects |
| 11/17/1988 | EP0127645B1 Fire alarm and electrode device therefor |
| 11/17/1988 | DE3644821A1 Arrangement and method for installation and exchange of sensors in instruments of all types |