Water immersion thermostat and method for using thereof

Abstract

An improvement in a water immersion thermostat having a longitudinal sleeve for being deeply substantially-immersed in water of a storage water heater, the improvement including a thermal fuse disposed within the longitudinal sleeve, for single-use cutting of electrical connection upon temperature of the water within the storage water heater exceeding a pre-adjusted temperature threshold, and serial wiring of the thermal fuse between the power supply and the heating element of the storage water heater, thereby permanently cutting the power supply from the heating element upon presence of extreme temperature deep in the storage water heater.

Description

FIELD OF THE INVENTION[0001]The present invention relates to the field of storage water heaters. More particularly, the invention relates to a water immersion thermostat.BACKGROUND OF THE INVENTION[0002]FIG. 1 depicts a prior art thermostat for a storage water heater.[0003]In household and commercial usage, common water heaters are of the tank type, called storage water heaters. Typically they include a cylindrical vessel in which water may be stored is kept continuously hot and ready for use.[0004]The term “immersion thermostat”, or “probe type thermostat” is a thermostat designed for insertion or at least resembling insertion into the medium being sensed.[0005]A storage water heater includes an immersion thermostat 10, for limiting the temperature of the water therein.[0006]The following description of water immersion thermostat 10 relates to a common product distributed in Israel and other countries.[0007]One of the sensors of immersion thermostat 10 includes a longitudinal metal...

AI Technical Summary

Benefits of technology

The present invention is an improvement to a water immersion thermostat used in storage water heaters. The improvement includes a thermal fuse that is placed inside the thermostat and connected between the power supply and the heating element of the water heater. The fuse is designed to cut the power supply in case of extreme temperatures inside the water heater. The thermostat can also have a multi-use heat sensor and a triggering element that can temporally cut the power supply in case of extreme temperatures. The technical effects of this invention include ensuring safety and protection against accidents caused by heating water of a storage water heater.

Problems solved by technology

Thus, the reset activity of bimetallic strip 60 is regarded unsafe after the failure of metal rod 52.

Bimetallic strip 60 is disadvantaged of not being immersed or substantially immersed in the water, thus not sensing the temperature of the deep volume of the water storage.

All the methods described above have not yet provided satisfactory solutions to the long felt need of a safety thermostat.

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