Gas-powered heating apparatus

• US 7,510,394 B2
• Filed: 02/04/2005
• Issued: 03/31/2009
• Est. Priority Date: 02/04/2005
• Status: Expired due to Fees

• Current Assignee: Arlo Lin
• Original Assignee: Arlo Lin
• Inventors: Lin, Arlo
• Primary Examiner(s): Basichas; Alfred
• Application Number:
  US11/050,916
• Publication Number:
  US 20060174865A1
• Time in Patent Office: 1,516 Days
• Field of Search: 431/66, 431/156, 431/72, 431/36, 431/37, 431/344, 431/12, 277/932, 922/26, 239/75, 126401-414, 236/8, 236/9, 236/18, 236/19, 236/33, 236/75, 236/87, 236/93, 236/96
• US Class Current: 431/344
• CPC Class Codes: B23K 3/022 using a gaseous fuel
• CPC Class Codes: F23D 14/28 in association with a gaseous fuel source, e.g. acetylene generator, or a container for liquefied gas
• CPC Class Codes: F23D 14/72 Safety devices, e.g. operative in case of failure of gas supply
• CPC Class Codes: F23N 1/007 using mechanical means F23N1/04 - F23N1/10 take precedence

Abstract

A gas-powered heating apparatus includes a reservoir for storing fuel, a combustor communicated with the reservoir for burning the fuel, a switch provided between the reservoir and the combustor for turning on/off the supply of the fuel to the combustor from the reservoir and a controlling device provided between the reservoir and the combustor for controlling the rate of the supply of the fuel to the combustor.

Claims

1. A gas-powered heating apparatus comprising:

a reservoir storing fuel;

a combustor communicated with the reservoir, with the combustor burning the fuel;

and

a controlling device provided between the reservoir and the combustor, with the controlling device controlling a rate of supply of the fuel to the combustor, wherein the controlling device comprises;

a drum defining an inlet;

a first space communicated with the inlet;

a second space communicated with the first space;

a shoulder formed between the first and second spaces;

an outlet communicated with the second space and spaced from the shoulder with the shoulder intermediate the outlet and the first space; and

an adjusting element located in the second space with the adjusting element deformable between first and second conditions, with the adjusting element having a highest most portion, with the highest most portion and the shoulder creating a first height when the adjusting element is in the first condition, with the highest most portion and the shoulder creating a second height when the adjusting element is in the second condition, with the first height being greater than the second height, with the adjusting element supported upon the shoulder but with a portion spaced from the shoulder by a first gap allowing communication between the first space and the outlet when the adjusting element is in the first condition, with the adjusting element supported upon the shoulder but with a portion spaced from the shoulder by a second gap when the adjusting element is in the second condition when the temperature increases, with the first gap being different than the second gap.

2. The gas-powered heating apparatus according to claim 1 wherein the controlling device controls the rate of the supply of the fuel to the combustor based on temperature.

3. The gas-powered heating apparatus according to claim 1 wherein the adjusting element is a laminate consisting of two metal layers with different thermal expansion coefficients, with the laminate supported upon the shoulder and deforming as temperature changes.

4. The gas-powered heating apparatus according to claim 3 wherein the second space has a top side spaced from and opposite of the shoulder creating a depth in the second space, with the laminate forming the adjusting element further having a first side spaced from and opposite of a second side, with the highest most point located on the first side, with the second side supported on the shoulder, with the first and second sides creating a thickness, with the depth in the second space being larger than the thickness of the adjusting element, with the laminate forming the adjusting element having a peripheral edge leaving the shoulder to define the first and second gaps and allowing the fuel to flow to the outlet from the inlet through the first and second spaces, with the adjusting element remaining in the second space when the peripheral edge of the adjusting element leaves the shoulder, with the first gap being larger than the second gap.

5. The gas-powered heating apparatus according to claim 4 further comprising a cover sealing the second space with the first side of the adjusting element abutting with the cover.

6. The gas-powered heating apparatus according to claim 4 wherein the first side abuts the top side and the adjusting element is sandwiched between the top side and the shoulder when the adjusting element is in the second condition.

7. The gas-powered heating apparatus according to claim 3 wherein the outlet comprises a tapered outlet;

and wherein the controlling device further comprises a tapered plug movable in the tapered outlet and engaged by the laminate forming the adjusting element.

8. The gas-powered heating apparatus according to claim 7 wherein the adjusting element in the second condition expands and pushes the tapered plug further into the tapered outlet as the temperature rises.

9. The gas-powered heating apparatus according to claim 1 wherein the adjusting element is movable towards the shoulder in the second space when temperature increases.

10. The gas-powered heating apparatus according to claim 1 wherein the adjusting element is contained entirely in the second space.

11. The gas-powered heating apparatus according to claim 1 wherein the first space is a cylindrical shape.

12. A gas-powered heating apparatus according to claim 1 further comprising:

a switch provided between the reservoir and the combustor, with the switch turning on or off the supply of the fuel to the combustor from the reservoir.

13. The gas-powered heating apparatus according to claim 12 wherein the controlling device is provided between the switch and the combustor, with the controlling device controlling the rate of the supply of the fuel to the combustor from the switch.

14. A gas-powered heating apparatus comprising:

a reservoir storing fuel;

a combustor communicated with the reservoir, with the combustor burning the fuel;

and

a controlling device provided between the reservoir and the combustor, with the controlling device controlling supply of the fuel to the combustor, wherein the controlling device comprises;

a drum defining an inlet;

a first space communicated with the inlet;

a second space communicated with the first space;

a shoulder formed between the first and second spaces;

an outlet communicated with the second space and spaced from the shoulder with the shoulder intermediate the outlet and the first space; and

an adjusting element located in the second space, with the adjusting element deformable between first and second conditions, with the adjusting element having a first end and a second end each supported on the shoulder, with the first end spaced from and opposite of the second end to create a first length when the adjusting element is in the first condition, with the first end spaced from and opposite of the second end to create a second length when the adjusting element is in the second condition, with the first length being less than the second length, with the adjusting element allowing communication between the first space and the outlet at a first rate when the first and second ends are supported upon the shoulder and the adjusting element is in the first condition, with the adjusting element allowing communication between the first space and the outlet at a second rate when the first and second ends are supported upon the shoulder and the adjusting element is in the second condition, with the first rate being different than the second rate.

15. The gas-powered heating apparatus according to claim 14 wherein the adjusting element is movable towards the outlet when the temperature increases.

16. The gas-powered heating apparatus according to claim 15 wherein the adjusting element is shaped like a rod.

17. The gas-powered heating apparatus according to claim 16 wherein the first end of the adjusting element comprises a fixed end secured to a wall of the second space and the second end of the adjusting element comprises a free end movable towards the outlet when temperature rises.

18. A gas-powered heating apparatus according to claim 14 further comprising:

a switch provided between the reservoir and the combustor, with the switch turning on or off the supply of the fuel to the combustor from the reservoir.