Water backup alarm system

G - Physics – 01 – F

Patent

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340/144

G01F 23/22 (2006.01) E03F 7/00 (2006.01) G01F 23/24 (2006.01) G08B 21/18 (2006.01)

Patent

CA 1261940

A self-contained signalling device for insertion into a pipe of a drain system, such as a sewage system including a septic tank, the device being capable of emitting a signal, such as a pulsating sound, when the level of liquid in the pipe reaches a predetermined level. The device includes an alarm portion which includes a circuitry having a power source and signal emitting component, such as a horn, and electrodes which cause activation of the signal emitting component when the electrodes are contacted by the liquid in a back-up condition. The device further includes a member which carries the alarm portion and engages the pipe for holding the alarm portion in a preselected position in the pipe. The device is designed to enable a householder to readily insert it in a pipe, such as in the floor drain, and from time to time remove it for battery replacement without accuiring the services of skilled personnel. By properly placing the device in a floor drain pipe or inside of a clean-out opening, the householder is made aware of a failure in the sewer system and can then take action to prevent excessive damage which might otherwise be caused by the back-up reaching the stage of flooding a large area within the house.

473268

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