Patents
Patents for G08B 21 - Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for (34,716)
11/1985
11/12/1985CA1196707A1 Security-ensuring apparatus having an operational guidance function
11/05/1985US4551713 Pet door mat alarm
10/1985
10/30/1985EP0159742A1 Means for determining the state of lubrication in surfaces lubricated by a lubricant and rolling or sliding with respect to one another
10/23/1985EP0158817A1 Interconnection part for a warning device
10/15/1985US4547778 Method and apparatus for automatic distress call signal transmission
10/15/1985US4547771 Vibration sensor
10/15/1985US4547768 Toilet reservoir fill alarm
10/08/1985US4546346 Sewer line backup detection, alarm and detention apparatus
10/08/1985US4546344 Temperature compensated alarm system
10/01/1985CA1194583A1 Gas detector
09/1985
09/24/1985US4543569 Vehicular alarm triggering system
09/24/1985CA1194133A1 Electronic apparatus with audible annunciator and alarm lamp
09/18/1985EP0155032A1 Monitoring device
09/17/1985US4542284 Electrical appliance with delayed warning alarm
09/10/1985US4540979 Grip-responsive operator alertness monitor
09/10/1985US4540976 Circuit arrangement for a buoyant alarm device
09/10/1985CA1193352A1 Acoustic monitoring method and device for industrial installations
09/03/1985US4539560 Bed departure detection system
08/1985
08/27/1985US4538249 Ultrasonic doppler fish detector
08/27/1985US4538142 For use in the disciplinary technique known as "time-out"
08/27/1985US4538141 Water detection subassembly and method of forming same, for computer processing centers
08/27/1985US4537287 Apparatus for detecting abnormality in the cage of an elevator
08/20/1985US4536756 Pressure indicator and alarm
08/20/1985US4536755 Apparatus for detecting unauthorized egress by patient from position of confinement
08/20/1985US4536749 Security-ensuring apparatus having an operational guidance function
08/13/1985US4535324 Remote activated alarm triggering device
08/13/1985US4534634 Erroneous release preventing device for camera
08/06/1985US4533908 Warning means for a safety valve of a hydraulic power unit and a hydraulic power unit having the same
08/06/1985US4533907 Swimming pool alarm
07/1985
07/23/1985US4531117 Variable frequency RF electronic surveillance system
07/23/1985US4531115 Remote alarm system
07/16/1985US4529975 Separate overload detecting and warning system for hydraulic jack
07/16/1985US4529974 Fluid leakage detecting apparatus
07/16/1985US4529962 Portable door signal
07/10/1985EP0147539A2 System and method for detecting and warning of drowsy driving of a vehicle
07/10/1985EP0041952B1 Danger detection device with detector
07/09/1985US4528563 Rearward obstruction sensing system for automotive vehicle
07/09/1985US4528558 Door-open alarm device for a refrigerating appliance
07/09/1985US4527504 Safety device to quickly locate a drowning victim
07/09/1985CA1190302A1 Apparatus for detecting cracked grain of unhulled rice or hulled rice
07/01/1985EP0137781A4 Engine parameter monitoring system.
06/1985
06/18/1985US4524243 Personal alarm system
06/18/1985CA1189162A1 Driver alarm
06/12/1985EP0144160A2 Movement sensor
06/11/1985US4523187 Alarm system for electric fences
06/11/1985US4523178 Wireless alarm system in conjunction with at least one vehicle
06/04/1985US4520748 Differential-vacuum alarm device
05/1985
05/28/1985US4520351 Passive personal alarm device
05/28/1985US4520350 Mail box with remote indicator
05/21/1985US4518963 Automatic indicator for tower lights
05/21/1985US4518958 Capacitively coupled machine tool safety having a self-test network
05/21/1985CA1187580A1 Method and apparatus for monitoring unburned particulate accumulation in the exhaust duct of a combustion system
05/15/1985EP0141099A2 Warning device
05/14/1985US4517557 Alarm housing for rodent control device
05/14/1985US4517161 Detection of explosive hydrocarbons in aircraft
05/08/1985EP0139698A1 Reminder alarm system
05/07/1985CA1186745A1 Emergency communication device
04/1985
04/30/1985US4514722 Domestic automatic continuously monitoring soil moisture monitor/indicator
04/30/1985US4514721 Multi-operation mode type of security-ensuring apparatus
04/24/1985EP0137781A1 Engine parameter monitoring system
04/17/1985EP0137247A2 Device for preventing overheating of a clutch
04/16/1985CA1185691A1 Method and apparatus for automatic abnormal events monitor in operating plants
04/09/1985US4510487 Pool alarm
04/02/1985US4509040 Alarm system for preventing an automotive vehicle driver from dozing at the wheel
03/1985
03/27/1985EP0135350A1 Systems for transmitting light
03/19/1985US4506218 Condition sensing arrangement for ac machines
03/12/1985US4503800 Heat responsive alarm device
03/05/1985US4502287 Refrigeration system alarm device
02/1985
02/26/1985US4502122 Method and apparatus for measuring vehicle driver's fatigue to give an alarm
02/26/1985US4502044 Moisture alarm system
02/19/1985CA1182881A1 Boundary plane warning system
02/12/1985US4499456 Driver alert
02/12/1985US4498330 Gas detecting and monitoring device
01/1985
01/29/1985US4496941 For supplying current to a load
01/29/1985US4496940 Sensing and indicator system for detecting heating element failures
01/17/1985WO1985000233A1 Electronic sound detecting unit for locating missing articles
01/16/1985EP0131440A1 Variable frequency RF electronic surveillance system
01/08/1985CA1180829A1 Lift control system
01/03/1985WO1985000056A1 Structural deformation detecting apparatus
12/1984
12/18/1984US4489314 Golf club monitor
12/18/1984US4489313 Signal direction determining system and directional loop antenna array therefor
12/11/1984US4488269 Temperature surveillance systems
12/11/1984US4488147 Battery jumper cable system
12/06/1984WO1984004836A1 An anchoring alarm, especially for leisure boats
12/05/1984EP0127258A2 Security control system for electrical equipment
12/04/1984US4486744 For indicating gas flow through a conduit
12/04/1984US4486743 Creosote buildup detector and annunciator
11/1984
11/27/1984US4485375 Grip-responsive dozing driver alarm
11/20/1984US4484043 Switch apparatus responsive to pressure or distortion
11/20/1984CA1178373A1 Combustible gas detector system
11/06/1984US4481507 Abnormal condition warning apparatus for a sewing machine
11/06/1984US4481504 Sound level alarm which ignores transient sounds
10/1984
10/30/1984US4480250 Credit card carrier with alarm
10/23/1984US4479118 Power outage indicator
10/23/1984US4479115 Fan speed and/or fan failure detector
10/11/1984WO1984003975A1 Reminder alarm system
10/11/1984WO1984003973A1 Self-annunciator
10/10/1984EP0120991A2 Method of prewarning patients with climatically influenced diseases, for example epilepsy and cardiac infarct, and circuit arrangement therefor
10/09/1984US4476461 Occupancy monitor
10/09/1984US4475378 Process for interrogation of a detector of the concentration of combustible gas and an implementing device