Drain valve assembly

E - Fixed Constructions – 03 – C

Patent

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Details

E03C 1/23 (2006.01)

Patent

CA 2152589

Disclosed herein is a drain valve for a bathtub or other gravity drained container. When energized with an electrical pulse, a solenoid mounted directly below the drain elbow drives the poppet upward, which unseals the outlet drain. A permanent magnet latches the solenoid armature in place in the up position. The valve is closed by energizing the solenoid with a pulse of opposite polarity which pulls the armature downward and out of the influence of the permanent magnet. A piston a sleeve overnested by a movable shroud provides leakage protection and allows manual opening and closing.

L'invention se rapporte à une vanne de vidange (2) d'une baignoire (1) ou autre conteneur drainé par la gravité. Lorsqu'il est parcouru par une impulsion électrique, un solénoïde (18) fixé directement en dessous du coude de drainage soulève la vanne en champignon (5), ce qui ouvre le conduit de vidange (3). Un aimant permanent (20) verrouille l'armature (12) du solénoïde dans la position soulevée. La vanne (2) se ferme en faisant passer dans le solénoïde (18) un impulsion de polarité opposée qui tire l'armature (12) vers le bas et hors de l'influence de l'aimant permanent (20). Un piston (10) placé dans un manchon recouvert par une enveloppe (8) mobile assure la protection contre les fuites et permet une ouverture et une fermeture manuelles.

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