Supercharged hot water heater

• US 6,659,048 B1
• Filed: 04/15/2003
• Issued: 12/09/2003
• Est. Priority Date: 06/06/2002
• Status: Active Grant

• Current Assignee: Insinkerator LLC (Whirlpool Corporation)
• Original Assignee: Emerson Electric Company
• Inventors: Snyder, Terrence William, DeSantis, Paul Mark
• Primary Examiner(s): WILSON, GREGORY A
• Application Number:
  US10/414,395
• Publication Number:
  US 20030226523A1
• Time in Patent Office: 238 Days
• Field of Search: 122/20.R, 122/13.01, 122/13.3, 122/20.B, 392/444, 392/447, 392/448, 392/455
• US Class Current: 122/20.00R
• CPC Class Codes: F24H 1/18 Water-storage heaters

Abstract

Embodiments of the present invention provide a hot water dispenser capable of heating water to near boiling temperatures (e.g., 205° F. to 212° F.). When water at near boiling temperatures is required, a secondary heating element is activated. The secondary heating element is in thermally coupled to the dispensing tube so that the water in the tube may be further heated as it passes through the dispensing tube from the tank to the dispensing outlet. Heating the water to near boiling just prior to its being dispensed reduces energy costs because the near boiling temperature water is not stored and allowed to cool. Additionally, the need for expensive insulation or expensive thermostats is eliminated.

Claims

1. A hot water dispenser capable of dispensing water of a second temperature from a faucet, comprising:

a water tank capable of holding water and having a first heating element for heating the water to a first temperature;

a tube coupled to the water in the water tank for transmitting the water from the water tank to the faucet; and

a secondary heating element coupled to the tube for heating the water from the first temperature to the second temperature.

2. The hot water dispenser of claim 1, wherein the secondary heating element is electric.

3. The hot water dispenser of claim 1, wherein the secondary heating element is gas.

4. The hot water dispenser of claim 1, further comprising a switch to activate the secondary heating element.

5. The hot water dispenser of claim 4, wherein the switch is temperature sensitive.

6. The hot water dispenser of claim 4, wherein the switch is a circuit breaker.

7. The hot water dispenser of claim 1, wherein the tube is coupled to the secondary heating element by wrapping the secondary heating element about the tube.

8. The hot water dispenser of claim 1, wherein the tube is coupled to the secondary heating element by attaching the heating element to the exterior of the tube.

9. A hot water dispenser for dispensing water of a second temperature from a faucet, comprising:

a water tank capable of holding water and having a first heating element for heating the water to a first temperature;

a tube coupled to the water in the water tank for transmitting the water from the water tank to the faucet; and

a means coupled to the tube for heating the water from the first temperature to the second temperature.

10. The hot water dispenser of claim 9, wherein the means for heating the water is electric.

11. The hot water dispenser of claim 9, wherein the means for heating the water is gas.

12. The hot water dispenser of claim 9, further comprising a switch to activate the means for heating the water.

13. The hot water dispenser of claim 12, wherein the switch is temperature sensitive.

14. The hot water dispenser of claim 12, wherein the switch is a circuit breaker.

15. The hot water dispenser of claim 9, wherein the tube is coupled to the means for heating the water by wrapping the means for heating the water about the tube.

16. The hot water dispenser of claim 9, wherein the tube is coupled to the means for heating the water by attaching the means for heating the water to the exterior of the tube.

17. A method for dispensing water of a second temperature from a faucet, comprising:

heating water in a water tank to a first temperature;

transmitting the water through a tube from the water in the water tank to the faucet; and

heating the transmitted water within the tube to a second temperature.

18. The method of claim 17, wherein the water is heated to the second temperature electrically.

19. The method of claim 17, wherein the water is heated to the second temperature by gas.

20. The method of claim 17, wherein the water is heated to the second temperature by activating a switch to activate the secondary heating element.

21. The method of claim 20, wherein the switch is thermostatically sensitive.

22. The method of claim 20, wherein the switch is a circuit breaker.

23. The method of claim 17, wherein heating the water within the tube to a second temperature is accomplished by coupling the tube to a secondary heating element by wrapping the secondary heating element about the tube.

24. The method of claim 17, wherein heating the water within the tube to a second temperature is accomplished by coupling the tube to a secondary heating element by attaching the heating element to the exterior of the tube.

25. The method of claim 17, further comprising activating a valve to transmit the water through the tube.