H - Electricity – 01 – H
Patent
H - Electricity
01
H
H01H 9/54 (2006.01) H01H 35/14 (2006.01)
Patent
CA 2191021
The present invention relates to a novel switching unit that is particularly well suited for small appliances such as flashlights, portable radios and alarm systems among others. The switching device is responsive to successive physical disturbances, to close an electric circuit and energize a load such as a light bulb. In a most preferred embodiment a series of physical disturbances are required to cause the switching device to close the electric circuit. Advantageously, the switching device is provided with a timer that de-energizes the load after a predetermined time period. The advantage of this switching device is that it obviates the need of external mechanical switches.
Cette invention concerne un interrupteur novateur particulièrement bien adapté à de petits appareils tels que lampes de poche, radios et appareils d'alarme portatif. L'interrupteur ferme le circuit électrique alimentant une charge, une ampoule par exemple, en réponse à série de déformations matérielles. Dans la variante privilégiée, l'objet de l'invention doit subir une série de déformations pour réaliser la fermeture du circuit électrique. Il comporte une fonction avantageuse d'ouverture automatique du circuit au bout d'un temps déterminé. Il offre aussi comme avantage la non nécessité de prévoir un organe de commande mécanique extérieur.
Brain John
Fetherstonhaugh & Co.
Precision Concepts International Inc.
LandOfFree
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