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WO/1983/004449 |
This relates to an ionization type of smoke sensor for a fire alarm, and in particular to an ionization type of smoke sensor in which an internal ion chamber (a) consists of an inner electrode (6) and an intermediate electrode (8), and a...
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WO/1983/004450 |
This facility warns of abnormalities such as fire, theft, or problems when using isolated dimmer smoke sensors (A, B, C, D) detecting various phenomena due to smoke from luminous flux (L, La, Lb, Lc, Ld) applied from light-emitting units...
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WO/1983/004120 |
An ionization type smoke detector (10) includes a chamber having a measuring electrode (12), the voltage on the measuring electrode being a function of the concentration of smoke in the chamber, and further includes a comparison device (...
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WO/1983/002187 |
A light extinction type smoke detector which uses simple pulse light or modulation pulse light to reduce energy consumption, and precisely discriminates smoke generated by fire from interruption of the light beam from the light source to...
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WO/1983/001138 |
A system for monitoring abnormally high temperature along the length of a heating conductor (H) includes a tracing cable (T) containing a heating conductor (H) and a monitoring conductor (M). The monitoring conductor (M) is connected to ...
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WO/1983/000247 |
For the early detection of fires smouldering in containers containing lignite dust, the presence of gas containing hydrogen and/or hydrocarbons is measured within the containers, respectively around the containers, those gases not being ...
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WO/1982/004150 |
An optical fire detector in which the beams are received in a detector after having passed through a measuring chamber, for determining if the intensity of the received beam has been affected by combustion aerosols. A prism system with t...
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WO/1982/003936 |
An alarm device which includes a housing (12), batteries (28, 29, 30) in the housing (12), conductors (41, 42), and a light source (34) and audio signal (32) in parallel to one another and connected to the batteries (28, 29, 30) and swit...
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WO/1982/003487 |
An optical fire detector in which a radiation source (4) generates a ray beam, after having passed through the air in a room, is received by a detector (5) for determining if the characteristic properties (intensity, modulation) of the r...
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WO/1981/001765 |
A photoelectric smoke detector for providing indications of both alarm and trouble conditions has a source of light (16), a detector apparatus having a light responsive device (18), said detector apparatus providing an output subject to ...
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WO/1981/001369 |
Fire extinguishing apparatus comprises a plurality of electrically actuable actuators (A) connected in series and each arranged to actuate a sprinkler head. Connected in parallel with each actuator is a variable resistance device (RD) wh...
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WO/1981/001330 |
Fire and explosion detection system (10) for detecting radiation (16) emitted from a fire or explosion (18), wherein long wavelength radiant energy responsive signals are processed in one (14) channel and compared to short wavelength rad...
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WO/1981/000636 |
In a detection arrangement comprising a central processing unit (E) and signalling devices (M) remotely located, the energy transmission from a radiation source (Q) and the signal return takes place exclusively optically by means of radi...
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WO/1980/001326 |
Smoke detector particularly provided for fire alarm with a radiation source (5) having a conical radiation diagram and a radiation receiver (R) located onto the axis but out of reach of the direct radiation which collects the radiation d...
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WO/1980/001214 |
The detection of events - such as illegal entry detection, or the occurrence of predetermined hazards are detectable by a system including a circuit loop (2) which incorporates event actuatable switches (1, 35, 37, 38). Each switch has a...
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WO/1980/000044 |
Pneumatic or hydraulic conduits which form a protection against intruders, are connected to a detector which registers a possible variation of the pressure and sets off an alarm. With a view to preventing an interruption, for example, by...
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WO/1979/001042 |
Apparatus and methods for detecting an incipient fire condition based on a shift in the size distribution of particles generated by a developing incipient fire condition. Particulate mass concentrations of at least two different particul...
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WO/1979/000918 |
An inonisation chamber smoke detector in which a first electrode (11) is covered with an insulator (12) except at one end where it is opposed by a measuring electrode (15); the major part of the surface of the insulator (12) carries a co...
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WO/1979/000691 |
A thermostat monitoring and controlling the temperature of produce within an enclosure and featuring a bridge circuit (18) sensing errors between the actual and desired temperatures in which the desired temperature is selected directly i...
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JP2012014742 |
To provide a fire alarm provided with a compact and stable peripheral device for detecting smoke or heat generated in case of fire.The fire alarm provided with a peripheral device has a base to be attached to an installation plane and an...
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JP2012014330 |
To provide a thin heat-smoke composite type sensor capable of sensing heat with high sensitivity.A heat-smoke composite type sensor 1 includes heat sensing means 5 for sensing heat, and smoke sensing section for sensing smoke flown into ...
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JP2012009079 |
To provide a method for manufacturing a heat sensor, which keeps production efficiency and also improves waterproof property in a lead-in portion of a lead wire without increasing an installation cost.This invention relates to a method f...
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JP2012008633 |
To provide an alarm system which is advantageous in cost even when transmitting position information to a monitoring area.An alarm system 1 comprises a plurality of sensors 30 for transmitting an alarm signal when detecting an abnormalit...
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JP2012009690 |
To improve sensitivity of an optical sensor by increasing a proportion of light receiving area in the optical sensor.The optical sensor 1A includes a first electrode 11A, a photoconductive film 12A formed on a surface of the first electr...
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JP2012008993 |
To solve the problems in a conventional flame detection system and a fire monitoring device that: wiring and installation of a connection cable are difficult since the flame detection sensor and a control board for receiving detection si...
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JP2012004826 |
To prevent battery life of a particular radio station from becoming shorter than battery life of the other radio stations.In an embodiment, all radio stations (slave stations TRj) except a particular radio station (master station TR1) pe...
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JP2012004825 |
To make delay time, from occurrence of an event to time when all radio stations can receive a radio signal, shorter than before.Transmission control means (control unit 1) of a radio station (master station TR1 and slave station TRj), at...
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JP2011253549 |
To provide a display structure for a sensor that improves the design or merchandise value of a sensor by arranging a light source without making it conspicuous.Disclosed is a display structure of a flame sensor 1 which detects prescribed...
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JP2011253537 |
To provide a smoke detector system that produces a signal that activates a fire suppression system for suppressing fire in an aircraft area.The smoke detector system 20 includes a smoke detector sensor 26 and an oxygen sensor 22 mounted ...
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JP2011248545 |
To provide a smoke sensor in which a common smoke detection structure can be used among a different kind of residential fire alarms, and a manufacturing method of the smoke sensor.The smoke sensor 1 includes a smoke sensing body 41 havin...
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JP2011248646 |
To provide a fire detection system for a granular metal capable of accurately detecting occurred flames and the possibility of fire breaking and also effectively extinguishing occurred live coals, a fire detecting device using the system...
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JP2011248805 |
To provide a transfer route notification system realizing appropriate transfer of people in an apartment house.An apartment house 10 is multistory and each floor has a plurality of dwelling units 21. And, the apartment house 10 has share...
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JP2011248911 |
To efficiently perform notification testing of coordinated emergency alarm notifications in which notifications of abnormal event warnings by an alarm and notifications of emergency earthquake information including emergency earthquake n...
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JP2011248470 |
To provide a fire detector capable of improving the SN ratio of high-frequency components while emitting acoustic waves including plural frequency components from a sound source part.A sound source part 1 emits burst waves of a fundament...
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JP2011248546 |
To provide an attachment structure of an antenna in a fire sensor that enables mounting of an antenna having a required length inside a sensor cover.The attachment structure of an antenna 47 is used in a wireless smoke sensor equipped wi...
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JP2011248471 |
To provide a fire detector in which probability of smoke density estimation does not decrease due to an influence of temperature changes in acoustic cell.The fire detector comprises, in a signal processing section 4, a path length correc...
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JP2011248425 |
To carry out a battery load test by generating the same situation as at the time of an abnormality alarm, such as a fire, and to enable more precise notice of a battery capacity reduction even at low temperature.A residential alarm unit ...
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JP2011248910 |
To enable notifying occurence of an earthquake in a room without an emergency warning device or at a place where broadcast is not received satisfactorily in conjunction with an alarm, and to easily comprehend a situation of the alarm det...
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JP2011248547 |
To provide an attachment structure of batteries in a fire sensor that can easily make a structure for battery storage part available for common use.The attachment structure of batteries is used in a battery-operated smoke sensor 1, and t...
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JP2011248791 |
To provide a fire alarm system which can equalize power consumption of batteries of multiple fire alarms and can urge a person to take a prompt action on fault such as a failure in the fire alarms side.A fire alarm system 1 is constitute...
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JP2011248906 |
To provide a capability of surely obtaining disaster prevention information such as an occurrence of an earthquake or the approach of a tsunami even in a room that is not provided with an emergency warning device or a place having a bad ...
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JP2011243105 |
To facilitate identification of an interlocking source and an interlocking destination as needed after detecting an abnormality such as a fire and stopping an alarm sent by the interlocking source and the interlocking destination.A home ...
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JP2011243107 |
To allow appropriate control of the volume of output sound indicating an abnormality or a fault, such as fire.An alarm is powered by a battery 34. An alarm processing section 68 causes an alarm sound indicating an abnormality to be outpu...
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JP2011243219 |
To recognize earthquake occurrence even in a room where an emergency alarm device is not installed or in a place where an FM broadcast reception environment is not good by a link with an alarm unit.The emergency alarm device 25 detects a...
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JP2011243235 |
To provide an alarm device capable of easily attaching/detaching an operating cord from the alarm device, capable of performing an inspection operation by using any of an operation button and the operating cord, and capable of preventing...
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JP2011243106 |
To specify a fire sensor having activated an alarm subsequent to a first alarm from among fire sensors connected to the same sensor line.In a P-type fire alarm system connecting a plurality of fire sensors to a sensor line led out of a r...
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JP2011243234 |
To provide an alarm device capable of easily attaching/detaching an operating cord from the alarm device, capable of performing an inspection operation by using any of an operation button and the operating cord, and capable of preventing...
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JP2011242909 |
To allow low density smoke caused by fire to be surely detected without causing an error due to particulates other than a fire.A fan 36 sucks external air through an inlet 14 of a housing 12, makes the air pass through a smoke detection ...
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JP2011243103 |
To provide an alarm capable of properly controlling a sound level including alarm sound in response to fluctuation in battery voltage.An alarm operates with a battery 34 as a power source. An alarm processor 68 makes a speaker 36 of a no...
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JP2011243104 |
To give a battery rundown notice more accurately by performing a battery load test that reproduces the same condition at the time of an alarm indicating an abnormality, such as a fire.An alarm is powered by a battery 34. An alarm process...
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