Patent ID: 8132534
Filing Date: 2012-03-13
Classification: A01K,B01D,Y10T

Abstract:
1. An aquarium overflow device for supplying water in an aquarium to an external device disposed outside the aquarium, the overflow device comprising: an inverted U-shaped siphon pipe for supplying the water in the aquarium to an outside of the aquarium, the siphon pipe having an inlet side end portion to be disposed in the aquarium and an outlet side end portion to be disposed outside the aquarium; a suction device connected to an upper portion of the siphon pipe and configured to suck an inside of the siphon pipe; an air introducing device for introducing air into the upper portion in the siphon pipe when suction by the suction device is stopped; and an inverted U-shaped discharge pipe having an inlet side end portion to be disposed outside of the aquarium and an outlet side end portion to be disposed inside of the aquarium; wherein the aquarium overflow device is configured such that water fed from the external device is introduced by a water supply device into the discharge pipe from the inlet side end portion and then discharged into the aquarium from the outlet side end portion; wherein a backward flow preventing opening is provided at an upper portion of the discharge pipe; and wherein the aquarium overflow device is configured such that when water supply from the external device by the water supply device is stopped, air is introduced into the discharge pipe from the backward flow preventing opening to prevent backward flow of the water.