| Patents for G08B 29 - Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation (6,872) |
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| 09/05/1995 | US5448748 Computer with alarm sounding apparatus having selectable output |
| 09/05/1995 | US5448224 Heat detector including device for detecting abnormality of external temperature sensor |
| 08/29/1995 | US5446390 Method and apparatus for monitoring and displaying sequentially operating conditions of a plurality of devices |
| 08/24/1995 | WO1995022366A1 Wireless remote monitors employing reassurance tones |
| 08/22/1995 | US5444434 Extended life smoke detector |
| 08/22/1995 | US5444432 Detection signal evaluation at varying signal levels |
| 08/22/1995 | US5444431 Intrusion monitoring device |
| 08/17/1995 | WO1995022223A1 Cellular digital packet data network transmission system |
| 08/10/1995 | WO1995005648A3 Smoke detector system with self-diagnostic capabilities and replaceable smoke intake canopy |
| 08/08/1995 | US5440498 Method for evaluating security of protected facilities |
| 08/08/1995 | US5440293 Detector supervision apparatus and method |
| 07/26/1995 | EP0664533A1 Testing photoelectric smoke detectors |
| 07/19/1995 | EP0269747B1 Transmission circuit of facilities for preventing disasters |
| 07/11/1995 | US5432805 Method of detecting transmission error in disaster prevention supervisory system |
| 06/29/1995 | DE4344172A1 Synchronisation of external alarm units with central unit |
| 06/28/1995 | EP0660284A1 Infrared human detection system |
| 06/27/1995 | CA2060131C Battery socket for smoke detector |
| 06/21/1995 | EP0658865A1 Smoke detector arrangement |
| 06/21/1995 | EP0658264A1 Smoke simulator for scattered light detectors, process for regulating their sensitivity to smoke and use of the simulator |
| 06/20/1995 | CA1336013C Guest room control |
| 06/08/1995 | WO1995004338A3 Smoke detection system |
| 06/07/1995 | EP0656505A1 Security installation for detecting human presence in dangerous areas |
| 06/07/1995 | CN1028807C Device for signalling position of mobile membre |
| 06/06/1995 | US5422629 Alarm silencing circuitry for photoelectric smoke detectors |
| 06/06/1995 | US5422626 Electrical monitoring system |
| 05/31/1995 | EP0655720A1 Fire detecting apparatus |
| 05/30/1995 | US5420977 Multiple aspect operator interface for displaying fault diagnostics results in intelligent process control systems |
| 05/24/1995 | EP0654772A1 Body detector |
| 05/24/1995 | EP0654771A1 Method for preventing false alarms in a fire detecting system and device for performing this method |
| 05/24/1995 | EP0654770A1 Device for early detection of fires |
| 05/19/1995 | CA2134930A1 Body detector |
| 05/16/1995 | US5416466 Personal security system with fixed testing transmitters |
| 05/11/1995 | DE4338236A1 Method for extending the life of a lead-acid accumulator, in particular an accumulator (rechargeable battery) in a hazard warning system (danger alarm system) |
| 05/03/1995 | CN1102290A Device for testing smoke detectors |
| 04/18/1995 | US5408217 Secure fire/security/sensor transmitter system |
| 04/05/1995 | EP0352317B1 Test initiation apparatus with continuous or pulse input |
| 03/30/1995 | DE4333008A1 Digital correlation logic |
| 03/21/1995 | US5400203 Short circuit detector and isolator |
| 03/09/1995 | WO1995006929A1 Process for generating smoke aerosols and pyrolysis device for carrying out said process |
| 03/09/1995 | WO1995006926A1 Adaptive fire detector |
| 03/09/1995 | CA2170877A1 Method for generating smoke aerosols and pyrolysis apparatus for carrying out the method |
| 02/28/1995 | US5394409 Method of detecting and localizing errors in redundant primary detectors of an automation system |
| 02/23/1995 | WO1995005648A2 Smoke detector system with self-diagnostic capabilities and replaceable smoke intake canopy |
| 02/22/1995 | EP0639262A1 Device for testing the operability of a system for detecting heat-radiating particles carried in a particle stream. |
| 02/15/1995 | EP0420836B1 Improved monitoring methodology |
| 02/14/1995 | US5390107 Computer implemented system |
| 02/14/1995 | US5388800 Protective guard for a security alarm device |
| 02/09/1995 | WO1995004338A2 Smoke detection system |
| 02/07/1995 | US5387899 Alarm system with monitoring circuit for detecting a cut or short in a pair of wires |
| 02/02/1995 | DE4325732A1 Method for potential-free monitoring of loop lines (ring circuits) |
| 02/01/1995 | EP0636266A1 Device for testing smoke detectors |
| 01/31/1995 | CA2020698C Intermittent fault detection system |
| 01/19/1995 | WO1995002230A1 Smoke simulator for scattered light detectors, process for regulating their sensitivity to smoke and use of the simulator |
| 01/18/1995 | EP0634009A1 Improved diffusion-type gas sample chamber |
| 01/17/1995 | US5382944 Supervised PIR motion-detection system |
| 01/10/1995 | US5381131 Smoke detecting apparatus for fire alarm |
| 01/05/1995 | WO1995000937A1 Potential adjusting sensor supervision circuit |
| 01/05/1995 | DE4329847C1 Process for producing smoke aerosols and pyrolysis apparatus for carrying out the process |
| 12/28/1994 | EP0631265A1 Circuit arrangement of an optical detector for environmental monitoring and indication of a disturbing medium |
| 12/27/1994 | US5376924 Fire sensor |
| 11/29/1994 | US5369397 Adaptive fire detector |
| 11/22/1994 | CA1333195C Remote control |
| 11/17/1994 | DE4316167A1 Device for site protection (grounds protection) |
| 11/16/1994 | CN1095176A Smoke type fire detector |
| 11/16/1994 | CN1095175A Photoelectric type fire detector |
| 11/15/1994 | US5365515 Network monitor and test apparatus |
| 11/10/1994 | WO1994025946A1 Smoke detector sensitivity testing apparatus |
| 11/08/1994 | US5361623 Delivery system for smoke detector testing spray formulation |
| 11/08/1994 | CA2020025C Battery missing indicator |
| 11/02/1994 | EP0622767A1 Heat detector |
| 11/02/1994 | EP0619879A4 Multi-channel gas sample chamber. |
| 10/26/1994 | EP0621702A2 Monitoring circuit for the operational state of a signal line of a differential signal transmission link |
| 10/19/1994 | EP0619879A1 Multi-channel gas sample chamber |
| 10/05/1994 | EP0618556A1 Photoelectric type fire detector |
| 10/05/1994 | EP0618555A2 Smoke type fire detector |
| 09/27/1994 | CA1332190C Switch monitoring arrangement with remote adjustment capability |
| 09/27/1994 | CA1332188C System for detecting irregular operation of switch state verification circuit |
| 09/21/1994 | EP0616308A1 Disaster prevention monitoring apparatus |
| 09/21/1994 | EP0616307A1 Intrusion detector |
| 09/21/1994 | CN1092526A Detection system with receptor and process for the implementation of a device to verify the functioning of this detection system |
| 09/14/1994 | EP0615218A1 Method and device for compensation of the moisture in a light scattering detector |
| 09/13/1994 | US5347225 Network monitor and test apparatus |
| 08/30/1994 | US5343387 Cyclic maintenance work schedule table preparation system |
| 08/24/1994 | EP0612047A1 Method for the evaluation of electroacoustic signals |
| 08/23/1994 | US5341214 NDIR gas analysis using spectral ratioing technique |
| 08/23/1994 | US5341122 Pressure actuated glass break simulator |
| 08/23/1994 | US5340986 Diffusion-type gas sample chamber |
| 08/23/1994 | CA1331649C Method for operating an optical smoke detector and optical smoke detector for the method |
| 08/18/1994 | WO1994018653A1 Device for testing smoke detectors |
| 08/17/1994 | CN1025704C For cellular communication system |
| 08/16/1994 | US5339072 Fire detector with anti-tampering measures for use in vehicles |
| 08/10/1994 | EP0609354A1 Fire detector and a method of detecting a fire |
| 08/04/1994 | DE4240778C1 Hidden sensor e.g. for monitoring flange of pipe, door frame, transported container, disturbance analysis or reaction monitoring |
| 08/03/1994 | EP0609043A1 Methods and apparatus for intrusion detection having improved immunity to false alarms |
| 07/29/1994 | CA2113026A1 Methods and apparatus for intrusion detection having improved immunity to false alarms |
| 07/19/1994 | US5331319 Device for signalling the position of a mobile member |
| 07/06/1994 | EP0604502A1 Smoke and particle detector |
| 07/06/1994 | CN1089048A Sensitivity measuring apparatus for use with a fire detector |
| 06/29/1994 | EP0604187A2 Toxic gas detector system |
| 06/29/1994 | CN2170547Y Safety monitoring alarm recorder for automobile |