Patents
Sitemap › G08 - Signalling › G08B - Signalling or calling systems; Order telegraphs; Alarm systems › G08B 17 - Fire alarms; Alarms responsive to explosion
Patents for G08B 17 - Fire alarms; Alarms responsive to explosion (10,975)
10/1983
10/19/1983EP0091623A1 Ionisation fire detector
10/18/1983US4410884 Alarm system
10/18/1983US4410882 System for monitoring the ignition function of rapid extinguishing systems
10/12/1983EP0090811A1 Self-monitoring heat tracing system
10/11/1983CA1155196A1 Connection apparatus for a fire alarm
09/1983
09/20/1983US4405919 Method of fire detection and fire detection installation
09/20/1983US4404923 Heat alarm indicator
09/13/1983US4404550 Smoke detector - luggage combination
09/13/1983US4404548 Method for transmitting measuring values in a fire alarm system and apparatus for the performance of the aforesaid method
09/13/1983US4404477 Detection circuit and structure therefor
09/06/1983CA1153230A1 Optical arrangement for a smoke alarm using light scattering
08/1983
08/31/1983EP0087308A2 Temperature monitoring systems
08/31/1983EP0087307A2 Temperature monitoring systems
08/30/1983US4401979 Electrical controls for ionization smoke detector
08/30/1983US4401978 Combination detector
08/16/1983US4399428 Thermostat
08/09/1983US4397557 Optical arrangement for a light scattering type smoke detector
08/02/1983US4396840 Ionization type smoke sensing device
07/1983
07/19/1983US4394655 Bidirectional, interactive fire detection system
07/19/1983CA1150381A1 Smoke detector
07/19/1983CA1150359A1 Alarm device with a condition sensor element
06/1983
06/28/1983US4390869 Gas sensing signaling system
06/23/1983WO1983002187A1 Light extinction smoke detector
06/21/1983US4388822 Atmospheric sampling system
06/14/1983US4388617 Fire alarm device having thermal sensitivity enhancement
06/14/1983US4388616 Fire detection system with programmed sensitivity changes
06/14/1983CA1148279A1 Ionization smoke detector with increased operational reliability
06/14/1983CA1148278A1 Detector
06/07/1983US4387369 Broad spectrum charged electric field polar gas sensing and detection system
06/01/1983EP0080092A1 Radiation sensing fire suppression system
06/01/1983EP0080033A1 Ionization chamber for smoke detector and the like
05/1983
05/31/1983CA1147416A1 Self-checking photoelectric smoke detector
05/25/1983EP0020674B1 Smoke detector operating with scattered radiation
05/24/1983US4384488 Smoke detector
05/18/1983EP0079011A1 Smoke detector
05/18/1983EP0079010A1 Smoke detector
05/17/1983US4384283 Method and an apparatus for monitoring the subjection of individual people to harmful gases
05/11/1983EP0078443A2 Fire detection system
05/11/1983EP0078442A2 Fire detection system with IR and UV ratio detector
05/11/1983EP0040211B1 Fire extinguishing apparatus
05/10/1983US4383253 Ionization smoke detector
05/10/1983US4383251 Timed smoke detection
05/03/1983US4381922 Combustion detecting device using metallo-phthalocynine semiconductor and process of preparing same
04/1983
04/27/1983EP0077327A1 Alarm device
04/26/1983US4381503 Combination type fire detector
04/19/1983US4380760 Smoke detector with delayed alarm after change to stand-by power
04/19/1983CA1145070A1 Ionization detector calibration
04/13/1983EP0076338A1 Broad-spectrum particle detector
04/05/1983US4379290 Alarm device with a condition sensor element
04/05/1983US4379289 Fiber optics security system
03/1983
03/31/1983WO1983001138A1 Self-monitoring heat tracing system
03/29/1983CA1143871A1 Ionisation detector chamber
03/08/1983CA1142622A1 Charged non-conductive polar gas sensing element and detection system
03/02/1983EP0073111A1 Improvements in and relating to fire and explosion detection and suppression
03/01/1983CA1142247A1 Thermostat
02/1983
02/16/1983EP0071752A1 Fire alarm system
02/09/1983EP0070941A1 Circuit for fire alarm apparatus controlled by gas-sensitive semiconductor sensors with low power consumption
02/08/1983US4373136 Fire and explosion detection
02/08/1983US4372693 Temperature excursion sensing and locating apparatus
02/01/1983CA1140652A1 Heat detector circuit
01/1983
01/25/1983US4370557 Dual detector flame sensor
01/25/1983US4369647 Gas leakage detector
01/25/1983CA1140219A1 Rate of change detection
01/25/1983CA1139998A1 Thermally responsive acoustic fire alarm assembly
01/20/1983WO1983000247A1 Method for the early detection of fires smouldering in containers containing lignite dust by methane detection
01/18/1983US4369435 Fire detector and fire alarm system having circuitry to detect removal of one or more detectors at a signal station
01/18/1983CA1139859A1 Alarm system
01/12/1983EP0069393A1 Method for the early detection of carbonic fires in recipients containing dust of brown coal by detection of methane
01/11/1983CA1139419A1 Acoustic fire detection circuit responsive to micro-capsule ruptures
12/1982
12/28/1982CA1138556A1 Flame sensing system
12/22/1982EP0067313A1 Smoke detector with a pulse-actuated radiation source
12/15/1982EP0066952A2 Sensor system responsive to a fire or explosion
12/14/1982US4364031 Ionization smoke detector with increased operational reliability
12/14/1982CA1137589A1 Smoke detector
12/08/1982EP0066472A1 Explosive gas detector
12/08/1982EP0066363A1 Microprocessor-controlled fire sensor
11/1982
11/30/1982US4361763 Smoke detectors
11/25/1982WO1982004150A1 Optical fire detector with extended radiation path
11/24/1982EP0065497A1 Inflammable gas detector device
11/23/1982US4360801 Home security and garage door operator system
11/17/1982EP0064811A1 Flame detector
11/16/1982US4359637 Feeler for a monitoring apparatus
11/11/1982WO1982003936A1 Alarm device
11/10/1982EP0064334A2 Temperature surveillance system
11/10/1982EP0064333A1 Circuitry including charge storage means for boosting a limited current supplied to a load
11/09/1982US4358760 Portable fire alarm apparatus
11/02/1982US4357602 Fire detection and warning system
11/02/1982US4357534 Fire and explosion detection
11/02/1982CA1134958A1 Fire detectors
10/1982
10/26/1982US4356478 Protective devices; smoke detectors
10/26/1982US4356474 Alarm system
10/20/1982EP0062987A1 Methods of manufacturing combustibles sensors
10/19/1982US4355056 Method of manufacturing a combustibles sensor
10/19/1982CA1134068A1 Smoke detector having unipolar ionization chamber
10/14/1982WO1982003487A1 Optical fire detector
10/12/1982CA1133605A1 Smoke detector
10/07/1982EP0038856A4 Dual spectrum infared fire sensor.
09/1982
09/28/1982US4352099 Gas sensing unit for use in environment comprising explosive gases
09/28/1982US4352087 Fume detector and alarm system
08/1982
08/31/1982CA1130933A1 Dual-chamber ionization smoke detector assembly
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