Patents for G08B 17 - Fire alarms; Alarms responsive to explosion (10,975) |
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08/04/1992 | US5136278 Compact and lightweight pneumatic pressure detector for fire detection with integrity switch |
07/28/1992 | US5133605 Monitoring system employing infrared image |
07/23/1992 | WO1992012505A1 Alarm condition detector such as dangerous concentration detector of noxious gases in a medium |
07/14/1992 | US5130543 Direction sensitive energy detecting apparatus |
07/07/1992 | US5128653 Fire alarm system |
07/01/1992 | CN2108968U Net type water-proof anti-theft senser alarm |
06/25/1992 | WO1992010820A1 Portable smoke alarm |
06/23/1992 | US5124709 Method and apparatus for detecting fire, explosion, and/or projectile penetration |
06/17/1992 | EP0490722A1 Installation for aerial and/or terrestrial teledetection, particularly the detection of forest fires |
06/13/1992 | CA2057399A1 Fiber optic based fire detection and tracking system |
06/10/1992 | EP0489232A1 Fire signal system with surveillance |
06/10/1992 | CN2106625U Multi-functional fire extinguisher with a warning device |
06/09/1992 | US5121344 Method of locating underground mines fires |
06/09/1992 | US5121101 Apparatus and method for a smoke alarm device with integrated testing circuits |
06/09/1992 | CA1303255C Test initiation apparatus with continuous or pulse input |
06/05/1992 | CA2056768A1 Fire detector system and method |
06/02/1992 | US5117916 Sprinkler head and operation monitor therefor |
05/26/1992 | US5117223 Combination portable alarm system and storage container for parts thereof |
05/26/1992 | CA1301587C Fusible link construction |
05/20/1992 | CN2105103U Gas leakage alarm with switching-off |
05/13/1992 | CN1016595B Labyrinthic anti-explosion device for bitumite-spraying in blast-furnace |
05/12/1992 | USRE33920 Smoke detector having variable level sensitivity |
05/06/1992 | EP0484038A1 Flame detector using a discrete Fourier transformer to process amplitude samples from a flame signal |
05/01/1992 | CA2052278A1 Flame detector using a discrete fourier transformer to process amplitude samples from a flame signal |
04/29/1992 | CN2103169U Intelligence fire alarm searching unit |
04/21/1992 | US5107446 Environmental detection system useful for fire detection and suppression |
04/21/1992 | US5107128 Method and apparatus for detecting flame with adjustable optical coupling |
04/15/1992 | CN2101914U Automatic breaker for leakage of combustible gas |
04/15/1992 | CN2101913U Fire alarm |
04/15/1992 | CN2101912U Electronic gas alarm |
04/14/1992 | US5105371 Environmental detection system useful for fire detection and suppression |
04/14/1992 | US5105370 Environmental detection system useful for fire detection and suppression |
04/08/1992 | EP0479009A1 Temperature sensor |
04/07/1992 | US5103216 Improperly inserted battery detector |
04/07/1992 | US5103212 Balanced fluid flow delivery system |
04/07/1992 | US5103096 Senses concentration of carbon dioxide |
03/18/1992 | EP0475884A1 Fire detector with a detector of the light diffusion type and a detector of the ionization type |
03/18/1992 | EP0474860A1 Simple fire detector |
03/12/1992 | DE4028167A1 Ionisation fire detector - has common electrode with FET device coupled by conductive material to electrode |
03/03/1992 | US5093651 Intelligent smoke detector |
02/26/1992 | EP0472039A2 Fire detecting method and device |
02/12/1992 | CN2096092U Pocket low power consumption combustion gas alarm |
02/04/1992 | US5086293 Line interruption supervisory device for a fire alarm system |
02/04/1992 | US5085508 Beam alignment apparatus and method usable with projected beam smoke detector systems |
01/22/1992 | EP0467388A2 Method for detecting fire, explosion, and/or projectile penetration |
01/22/1992 | CN2094085U Microminiature fire alarm |
01/21/1992 | CA1294698C Frame assembly for a photocell-type smoke detector |
01/07/1992 | US5079542 Abnormal temperature detector for electronic apparatus |
01/07/1992 | US5079422 Fire detection system using spatially cooperative multi-sensor input technique |
01/07/1992 | CA1294021C Real time adaptive round discrimination fire sensor |
01/02/1992 | EP0463795A1 Smoke Particle detector |
01/01/1992 | CN1057538A Simple fire detector |
12/31/1991 | US5076260 Sensible body vibration |
12/27/1991 | EP0462642A1 Optical smoke, aerosol and dust detector and fire detector apparatus with optical detector |
12/25/1991 | CN2091476U Fast response temp.-induction detector for fire |
12/25/1991 | CN2091459U Carbon monoxide detecting alarm protecting instrument |
12/20/1991 | WO1991019906A1 Gaseous fluid aspirator or pump |
12/20/1991 | CA2085009A1 Gaseous fluid aspirator or pump |
12/17/1991 | US5073769 Flame detector using a discrete fourier transform to process amplitude samples from a flame signal |
12/11/1991 | EP0460066A1 Method and apparatus for detecting airborne allergen particulates. |
12/04/1991 | EP0459944A1 Apparatus and method for object-bound fire protection of electric and/or electronic systems and utilisation of this apparatus |
12/04/1991 | EP0458938A1 Fire fighting system mainly conceived to safeguard forests. |
12/04/1991 | EP0458925A1 Infrared sensor suitable for fire fighting applications |
12/02/1991 | CA2042624A1 Method and system for detecting underground mine fires |
11/27/1991 | CN2089646U Fire alarm |
11/26/1991 | CA1292533C Electronic smoke detector |
11/12/1991 | US5065140 Early warning reactive gas detection system |
11/12/1991 | US5064271 Fiber optic flame and overheat sensing system with self test |
10/29/1991 | US5060508 Gas sample chamber |
10/24/1991 | DE4012466A1 Portable alarm clock with integrated smoke detector - has self-testing of gas sensor provided by gas effusion cell |
10/23/1991 | EP0453297A2 Thermal detection arrangement |
10/22/1991 | US5059953 Infrared overheat and fire detection system |
10/22/1991 | US5059796 Infrared monitoring system |
10/16/1991 | EP0452057A2 Infrared overheat and fire detection system |
10/09/1991 | CN2086436U Automatic test alarm shutoff unit for burning gas |
10/08/1991 | US5055830 Battery sensing mechanism |
10/03/1991 | WO1991015836A1 Simple fire detector |
10/02/1991 | EP0449761A2 Method for signalling fire in a thatched roof and fire alarm for thatched roofs |
10/01/1991 | US5053754 Simple fire detector |
09/24/1991 | US5051722 Central address and programming unit for fire alarm detector |
09/24/1991 | US5051595 Fiber optic flame detection and temperature measurement system employing doped optical fiber |
09/24/1991 | US5051590 Fiber optic flame detection and temperature measurement system having one or more in-line temperature dependent optical filters |
09/17/1991 | US5049861 Method and system for detecting underground mine fires |
09/17/1991 | US5049756 Method and system for detecting forest fires |
09/11/1991 | EP0446061A2 Abnormal temperature detector for electronic apparatus |
09/11/1991 | EP0445346A1 Battery missing indicator |
09/11/1991 | EP0445332A1 Device for monitoring potentially explosive installations |
09/11/1991 | CN2084630U Mine lamp with gas automatic alarm |
09/10/1991 | CA2035371A1 Improperly inserted battery detector |
08/27/1991 | CA1288177C Modular smoke detector |
08/21/1991 | EP0442853A2 Self-contained apparatus for emergency lighting incorporating alarm systems for fire, gas and the like |
08/21/1991 | EP0407429A4 Fluid pollution monitor |
08/20/1991 | CA2010391A1 Smoke - detector with back-up, delay monitoring circuitry |
08/14/1991 | EP0441492A2 System and method for transferring data |
08/14/1991 | EP0440828A1 Gas monitoring system with leak detection and flow cutoff |
08/01/1991 | DE4036041A1 Appts. for detecting discharges in chamber carrying flowing medium - has light conductors with one end in chamber, one opposite photoreceiver |
07/30/1991 | CA1287140C Optical smoke detector |
07/23/1991 | US5034725 Semiconductor gas sensor having linearized indications |
07/23/1991 | CA1286546C Fire detection device for regenerative air heater |
07/17/1991 | CN2081113U Gas alarm |