An adjustable alarm device for sliding doors and windows

G - Physics – 08 – B

Patent

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Details

G08B 13/08 (2006.01)

Patent

CA 2438705

An adjustable alarm device for windows and doors is installed between the door or window frame and the door or window sash. The longitudinal axis of the alarm device is preferably horizontal. When engaged, movement of the door or window in an open direction will activate the alarm. The body of the alarm device is elongate, tubular and telescoping. The body comprises an outer tube that receives an inner tube. The body of the alarm device may be locked in an extended position by way of a cam mounted on the inner tube and positioned within the body so that when the inner and outer tubes of the body are twisted about their longitudinal axis, the cam body will engage the inner surface of the outer tube in a releasable frictional locking engagement. The alarm device is coupled to one end of the inner tube.

Un dispositif d'alarme réglable pour fenêtres et portes est installé entre un cadre de porte ou de fenêtre et un châssis de porte ou de fenêtre. L'axe longitudinal du dispositif d'alarme est de préférence horizontal. Une fois amorcé, le mouvement de la porte ou de la fenêtre dans une direction libre, actionne l'alarme. Le corps du dispositif d'alarme est allongé, tubulaire et télescopique. Ce corps comprends un tube extérieur qui reçoit un tube intérieur. Ce corps peut être verrouillé en position sortie, au moyen d'une came installée sur le tube intérieur et positionnée à l'intérieur du corps. Ainsi, lorsque les tubes intérieur et extérieur du corps tournent sur leurs axes longitudinaux, le corps de la came engage la paroi interne du tube extérieur dans un accouplement de verrouillage à friction libérable. Le dispositif d'alarme est accouplé à une extrémité du tube intérieur.

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