A light-emitting device to detect passage or smoke in the emitted beam. The device includes a source of invisible radiation, a source of visible laser radiation, an alignment component to align the central axis of the visible radiation with an axis parallel to the central axis of the invisible radiation, and a switch to turn off the visible laser source. The device can further include a housing containing both sources of radiation. The switch is configured to be controlled by the closing of the housing and the source of visible laser radiation is turned off in response to the closure of the housing.
G08B 17/103 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière
G01B 11/27 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour tester l'alignement des axes pour tester l'alignement des axes
G08B 13/183 - Déclenchement influencé par la chaleur, la lumière, ou les radiations de longueur d'onde plus courte; Déclenchement par introduction de sources de chaleur, de lumière, ou de radiations de longueur d'onde plus courte utilisant des systèmes détecteurs de radiations actifs par interruption d'un faisceau ou d'une barrière de radiations
G02B 27/62 - Appareils optiques spécialement adaptés pour régler des éléments optiques pendant l'assemblage de systèmes optiques
G08B 17/113 - Déclenchement par la présence de fumée ou de gaz utilisant une chambre d'ionisation pour détecter de la fumée ou du gaz - Détails de structure
A smoke detector includes a drift chamber and an ionization chamber formed by a first electrode and a second electrode. Electric charges are generated by ionization of the air. The drift chamber separated from the ionization chamber by the second electrode. The smoke particles penetrates from the environment to a detector inside the drift chamber. The electrical potential of first electrode exceeds a critical electric potential value for generating a corona discharge in the vicinity of the first electrode. The second electrode has openings for the electric charges generated in the ionization chamber to move to the drift chamber. The electric potential of the second electrode allows the electric charges in the drift chamber to move from the second electrode to the third electrode. The electric field between the second and third electrodes is at least 100 times weaker than the electric field between the first and second electrodes.
An extinguisher identifying device. The device comprises an extinguisher identifying device and an activation device, and a communications module. The extinguisher identifying device reads an identifying element on an extinguisher to obtain identifying data of the extinguisher. The activation device is configured to activate the extinguisher identifying device in response to a predetermined event. The communications module is configured to transmit the extinguisher identifying data to a management device.
G08B 1/08 - Systèmes de signalisation caractérisés seulement par la forme de transmission du signal utilisant une transmission électrique
A62C 37/50 - Dispositifs de test ou d'indication pour déterminer l'état de marche de l'installation
G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projets; Planification d’entreprise ou d’organisation; Modélisation d’entreprise ou d’organisation
G06Q 10/08 - Logistique, p.ex. entreposage, chargement ou distribution; Gestion d’inventaires ou de stocks
G08B 29/16 - Systèmes de signalisation ou d'alarme de sécurité, p.ex. systèmes redondants
A62C 13/76 - Extincteurs portatifs sous pression permanente ou mis sous pression immédiatement avant l'emploi - Détails ou accessoires
The smoke detector includes: a chamber (1) provided with apertures (3) allowing the smoke to enter a detection area (D), a light source (S) configured to emit towards the detection area (D), and a light receiver (R) configured so as to receive the light coming from the detection area (D). A concentration element (6, 7) is provided so as to create a non-uniform electric field in the detection area (D), that, in the presence of smoke, can polarize smoke particles entering the detection area (D). The non-uniform electric field has a spatial gradient configured to exert a dielectrophoretic force on the smoke particles so as to drive the polarized smoke particles into a concentration zone (C) in the detection area (D) and to aggregate them together to form quasi “big particles”.
G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée
G01N 33/00 - Recherche ou analyse des matériaux par des méthodes spécifiques non couvertes par les groupes
G01N 15/06 - Recherche de la concentration des suspensions de particules
G08B 17/107 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière pour détecter une diffusion de lumière due à de la fumée
5.
Cyclical supply method and device, and detection device comprising same
The detection device comprises an electrical power reserve, a voltage regulator configured to regulate the voltage supplied by the electrical power reserve, at least one capacitor charged by the voltage regulator, a detection circuit powered by the capacitor and a switch. The switch is configured to deactivate the regulator when the capacitor's charge is greater than a predefined value, such that the detection circuit is then only supplied with electricity by each said capacitor. The switch can be configured to open the circuit comprising the power reserve upstream of the regulator, and the switch comprises a means of comparing the electrical charge of each capacitor with a predefined value and/or the switch comprises a transistor.
The optical scattering-based smoke detector comprises a scattering zone accessible to the smoke, a printed circuit forming a supporting member and a first and second light reflectors mounted on a common supporting member. An electronic smoke detection unit, a light emitter and a light receiver are mounted on the printed circuit. The receiver is sensitive to at least some of the wavelengths of the light rays emitted by the emitter. The first light reflector facing the emitter to direct the emitted light into a detection zone in the scattering zone. The second light reflector facing the receiver to direct, in the presence of smoke in the scattering zone, the scattered light from the detection zone onto the receiver. A single mechanical part comprises the first and second light reflectors and a link resistant to the passage of the light from the first light reflector to the second light reflector.
G08B 17/10 - Déclenchement par la présence de fumée ou de gaz
G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée
G08B 17/107 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière pour détecter une diffusion de lumière due à de la fumée
The present invention relates to a connector with a blade comprising a housing. The housing comprises a lateral opening designed to receive an electric wire, a flexible blade and an opening opposite a free part of the blade. The flexible blade is designed to make contact with the electric wire and to retain the wire by applying pressure on it towards a wall of the housing. The opening has a shape designed to guide the head of a tool and make the head of the tool follow a helical motion. The opening may be threaded and cylindrical and the opening's thread may comprise only one helical groove formed in the wall of the opening.
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