Heating system and method

• US 7,659,493 B2
• Filed: 03/26/2008
• Issued: 02/09/2010
• Est. Priority Date: 03/03/2006
• Status: Expired due to Fees

• Current Assignee: Miller Manufacturing Company (Leggett & Platt Incorporated)
• Original Assignee: Allied Precision Industries, Inc. (Miller Manufacturing Company Incorporated)
• Inventors: Reusche, Thomas K., Chumbley, Philip E.
• Primary Examiner(s): Paschall; Mark H
• Application Number:
  US12/056,110
• Publication Number:
  US 20080173245A1
• Time in Patent Office: 685 Days
• Field of Search: 219/494, 219/497, 219/499, 219/501, 219/505, 219483-487, 219/496, 119/69.5
• US Class Current: 219/497
• CPC Class Codes: A01K 1/0158 Floor heating or cooling systems
• CPC Class Codes: A01K 1/0353 Dog beds
• CPC Class Codes: A01K 45/002 Bird baths or showers
• CPC Class Codes: A01K 63/065 Heating or cooling devices

Abstract

A fluid heating system includes a fluid receptacle having a fluid reservoir, and a heating control system configured to heat fluid retained within the fluid reservoir. The heating control system includes a processing unit, at least one fluid temperature sensor positioned on or within the fluid receptacle, a heating element configured to heat fluid within the fluid reservoir, and a power switch disposed within an electrical path between the heating element and the processing unit. The processing unit is configured to selectively activate and deactivate the heating element through the power switch based on the fluid temperature detected by the fluid temperature sensor.

Claims

1. A system, comprising:

a fluid receptacle having a fluid reservoir, said fluid reservoir configured to retain fluid; and

a heating control system configured to heat the fluid retained within said fluid reservoir, said heating control system comprising;

a processing unit;

at least one air temperature sensor in communication with said processing unit;

a heating element configured to heat the fluid within said fluid reservoir, wherein said processing unit is configured to selectively activate and deactivate said heating element based on a temperature of ambient air; and

at least one heating element temperature sensor in communication with said processing unit, wherein said processing unit is configured to prevent said heating element from activating based on a temperature of said heating element.

2. The system of claim 1, wherein said heating control system comprises a power switch disposed within an electrical path between said heating element and said processing unit, said processing unit being configured to activate said heating element through said power switch when said at least one fluid temperature sensor detects that the temperature of the fluid within said fluid reservoir is below a first threshold, and said processing unit being configured to deactivate said heating element through said power switch when said at least one fluid temperature sensor detects that the temperature of the fluid within said fluid reservoir is above a second threshold.

3. The system of claim 1, wherein said heating element is embedded in said fluid receptacle.

4. The system of claim 3, wherein said fluid receptacle comprises an inner receptacle and an outer receptacle, wherein said heating element is sandwiched between said inner receptacle and said outer receptacle.

5. The system of claim 2, wherein said power switch comprises a semiconductor switch.

6. The system of claim 5, wherein said semiconductor switch comprises a triac.

7. The system of claim 6, wherein said processing unit is configured to activate said heating element in a proportional mode.

8. The system of claim 1, further comprising at least one fluid level sensor in communication with said processing unit, wherein said processing unit is configured to prevent said heating element from activating based on a fluid level within said fluid reservoir.

9. A pet warming system, comprising:

a pet device; and

a heating control system secured on and/or within said pet device, said heating control system configured to heat said pet device, said heating control system comprising;

a processing unit;

at least one temperature sensor in communication with said processing unit, said at least one temperature sensor being configured to detect a temperature of one or more of said pet device, ambient air and/or a pet adjacent said pet device;

a heating member configured to heat said pet device; and

at least one pressure sensing device in communication with said processing unit, wherein said processing unit prevents activation of said heating member unless said pressure sensing device detects that an animal is adjacent at least a portion of said pet device.

10. The system of claim 9, wherein said heating control system comprises a power switch disposed within an electrical path between said heating member and said processing unit, said processing unit being configured to activate said heating member through said power switch when said at least one temperature sensor detects that the temperature is below a first threshold, and said processing unit being configured to deactivate said heating member through said power switch when said at least one temperature sensor detects that the temperature is above a second threshold.

11. The system of claim 9, wherein said at least one temperature sensor is configured to detect a surface temperature of said pet device.

12. The system of claim 9, wherein said at least one temperature sensor is configured to detect air temperature within said pet device.

13. The system of claim 9, wherein said pet device is one of a pet mat, pet bed, or blanket.

14. The system of claim 9, wherein said pet device is a pet sweater.

15. The system of claim 9, wherein said heating member is embedded in said pet device.

16. The system of claim 9, wherein said heating member comprises a plurality of heating elements, wherein each of said plurality of heating elements is positioned at a different location with respect to said pet device.

17. A system, comprising:

a birdbath having a water reservoir, said water reservoir configured to retain water; and

a heating control system configured to heat the water retained within said water reservoir, said heating control system comprising;

a processing unit;

a heating element embedded within at least a portion of said birdbath, said heating element configured to heat the water within said water reservoir; and

at least one temperature sensor in communication with said processing unit, said at least one temperature sensor configured to detect temperatures of said heating element, ambient air and water within said water reservoir, wherein said processing unit is configured to prevent said heating element from activating based on temperatures of said heating element, ambient air and the water within said water reservoir.

18. The system of claim 17, wherein said heating control system comprises a semiconductor switch disposed within an electrical path between said heating element and said processing unit, said processing unit being configured to selectively activate and deactivate said heating element through said semiconductor switch based on a detected temperature, said processing unit being configured to selectively activate and deactivate said heating element in a proportional mode.

19. The system of claim 17, wherein said heating control system comprises at least one water level sensor in communication with said processing unit, wherein said processing unit is configured to prevent said heating element from activating based on a water level within said water reservoir.