Apparatus for avoiding damage due to washing machine hose failure

Abstract

First and second solenoid valves are connected respectively to a cold water supply pipe and hot water supply pipe. Washing machines having first and second inlets are connected through the pair of hoses to the solenoid valves on the water supply pipes. The circuit means are connected to the solenoid valves on the water supply pipe and the washing machine internal solenoid valves, so that the valves are operated in synchronism whereby the inlet valves internal to the washing machine are enabled prior to enabling the solenoid valves connected to the water supply pipes. The valve sequence is reversed during a disabled operation, so that the solenoid valves connected to the water supply pipes are closed prior to closing the inlet valves. The operational sequence of the valves reduces the static pressure within the hoses to substantially zero.

Description

BACKGROUND OF THE INVENTION [0001] The present invention relates to facilities which use washing machines. Specifically, an apparatus is disclosed which will prevent damage from a washing machine hose failure when left unattended. [0002] Modern washing machines which are found in both the home and in commercial establishments are connected to hot and cold water supply pipes which supply water to the washing machine tub during washing and rinsing operations. The washing machines have first and second inlets for the hot and cold water, respectively, connected through a pair of flexible hoses to shut-off valves of a cold water and hot water supply system. During operation, the valves are open and the washing machine will fill the wash tub with water which is either cold or hot depending upon the selection made by the user. In most situations, the shut-off valves remain open except during emergencies when they can be closed if leaks occur in the washing machine or flexible hoses. [0003]...

AI Technical Summary

Benefits of technology

"The present invention is a safety device to prevent flooding caused by a failure of a washing machine hose. It uses two solenoid valves to control the water supply to the washing machine. The first solenoid valve is connected to the water supply pipe, and the water inlet of the washing machine is connected to the solenoid valve through a hose. The washing machine cycle controller enables both valves at the same time, allowing water to enter the washing machine wash tub. Once the tub has filled, the first solenoid valve is closed before closing the internal solenoid valve of the washing machine. This ensures that static pressure on the hose is always maintained at a minimum, prolonging the life of the hose and avoiding catastrophic flooding of the facility."

Problems solved by technology

The water pressure in the flexible hoses may, over time, cause the hoses to burst flooding the laundry facility.

If personnel are not available to intercede, the water damage can be very extensive.

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