Liquid heaters and vaporizers – Flasher
Utility Patent
1999-11-01
2001-01-02
Ferensic, Denise L. (Department: 3749)
Liquid heaters and vaporizers
Flasher
C122S014100, C122S235170, C392S401000, C392S491000
Utility Patent
active
06167845
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to water heaters, and more particularly to an instantaneous water heater assembly designed to provide instantaneous hot water and to heat a continuous supply of water.
2. Description of the Prior Art
The use of tankless or instantaneous water heaters is known. These heaters generally provide for rapid heating of water as it flows through the heater only when hot water is demanded, in contrast to other types of heaters that heat water at a relatively slow rate and provide storage for heated water. More specifically, apparatus' heretofore devised and utilized for the purpose of providing instantaneous hot water are known to consist basically of familiar, expected and obvious structural configurations, notwithstanding the myriad of designs encompassed by the prior art which have been developed for the fulfillment of countless objectives and requirements.
By way of example, note U.S. Pat. No. 5,479,558 to White, Jr. et al. directed to a very compact flow-through tankless water heater with flow switch and heater control system.
U.S. Pat. No. 5,438,642 to Posen teaches an instantaneous water heater, including a main body having plural vertical upwardly opening chambers and a plurality of combination heating and chamber partition assemblies.
U.S. Pat. No. 5,325,822 to Fernandez teaches an electric, modular tankless fluids heater having serially connected modules defining the path of the fluid being heated through the heater from inlet to outlet, and with each module having two separate chambers and each chamber having an electric immersion type heating assembly.
U.S. Pat. No. 5,408,578 to Bolivar teaches a tankless water heater assembly requiring no storage tank and having an entrance chamber and a plurality of heating elements each of which are at least partially segregated by being removably mounted within separate heating chambers.
U.S. Pat. No. 4,970,373 to Lutz et al. teaches an electronic temperature control system for a tankless water heater having a closed loop, electronic temperature control system for a tankless water heater.
U.S. Pat. No. 4,808,793 to Hurko teaches a tankless electric water heater which provides instantaneous hot water output and includes an open-ended folded tubular conduit having a separate metal sheathed immersion heating element inserted into each end of the conduit.
U.S. Pat. No. 4,786,782 to Takai et al. teaches an electric instantaneous water heater with enhanced temperature control having an output hot water pipe extending into a heating tank, and surrounded by a coiled sheath electric heater for heating the water in the tank the outlet pipe extending to the tank bottom and provided with an inlet thereat.
U.S. Pat. No. 4,604,515 to Davidson teaches a tankless electric water heater having a housing with a plurality of separate serially connected heating chambers defining a water flow path from a cold water inlet port to a heated water outlet port, and having each chamber being provided with a separate electric immersion heating element and a separate temperature sensor. The heating element of each chamber is independently controlled by a control system responsive to signals from each of the temperature sensors and the signal produced by an water outlet temperature selector so that the heating element in a chamber is energized only if the sensed water temperature in that chamber is less than the desired outlet water temperature.
U.S. Pat. No. 4,567,350 to Todd, Jr. teaches a compact high flow rate electric instantaneous water heater and includes a plurality of individual heating chambers connected in series flow relationship between a cold water inlet and a hot water outlet and a metallic mixing coil disposed between each adjacent pair of chambers to promote even mixing.
U.S. Pat. No. 4,455,475 to Giorgetti teaches an automatic device for quick heating of liquids having at least two containers having conduits for supplying cold water and each having heating means, and a tank into which warm water is alternatively supplied from outlets of the single containers.
U.S. Pat. No. 4,095,087 to Giraud teaches a miniature water heater system having electric immersion heaters in a heating enclosure which forms a compact monoblock composite unit resistant to high pressures. Several horizontal tubes are connected at or near their ends by two vertical distributing tubes, one of which is upwardly extended by a circulating pump and the other by a water-mixing turbulator.
U.S. Pat. No. 3,968,346 to Cooksley teaches a compact, fast acting tankless heater having an elongated casing with water inlet and outlet conduits at opposite ends and an elongated generally helically twisted inner tube disposed coaxially within the casing to define helical channel means between the tube and casing for conducting water longitudinally from the casing inlet to the casing outlet. An elongated electric heating means is disposed within the inner tube for heating the water therein.
In this respect, the instantaneous water heater according to the present invention substantially departs from the conventional concepts and designs of the prior art, and in doing so provides an instantaneous water heater, said instantaneous water heater of the present invention as claimed not being described by the above patents, taken either singly or in combination.
Therefore, it can be appreciated that there exists a continuing need for new and improved instantaneous water heater. In this regard, the present invention substantially fulfills this need.
SUMMARY OF THE INVENTION
In view of the foregoing disadvantages inherent in the known types of instantaneous water heater apparatus now present in the prior art, the present invention provides an improved construction and apparatus. As such, the general purpose of the present invention, which will be described subsequently in greater detail, is to provide a new and improved instantaneous water heater which has all of the advantages of the prior art and none of the disadvantages.
To attain this, the new and improved instantaneous water heater of the present invention comprises a tank, said tank being a sealed enclosure and having a top portion, a bottom portion, a first end, and a second end. The tank has an inlet, said inlet conducting unheated water into said tank and being located in said bottom portion of said first end of said tank. The tank has a baffle tube, said baffle tube attaching to said inlet and conducting unheated water from said inlet to said top portion of said second end of said tank. The tank has a baffle, said baffle segregating said tank into a baffle chamber and a main heating and storage chamber. The baffle chamber receives unheated water from said baffle tube and is located in said top portion of said second end of said tank. The baffle has baffle openings, said baffle openings being between said baffle chamber and said main heating and storage chamber and providing for intermixing of water therebetween. The tank has a plurality of heating elements, said plurality of heating elements being located in apertures located in said first end of said tank. The tank has a plurality of temperature sensors and activators, said plurality of temperature sensors and activators being located on the exterior of said second end of said tank, immediately exterior of said baffle chamber. The main heating and storage chamber has an outlet and a safety valve, said outlet discharging heated water from said tank and being located in said top portion of said first end of said tank, and said safety valve preventing over pressurization in said tank and being located in said outlet.
There has thus been outlined, rather broadly, the more important features of the new and improved instantaneous water heater of the present invention in order that the detailed description thereof that follows may be better understood, and in order that the present contribution to the art may be better appreciated. There are, of course, additional features of the new and improved instantaneous wa
Ferensic Denise L.
Wilson Gregory A.
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