Gas burner assemblies, methods for assembling, and gas fired appliances employing same

• US 7,004,751 B2
• Filed: 12/23/2003
• Issued: 02/28/2006
• Est. Priority Date: 12/23/2003
• Status: Expired due to Fees

• Current Assignee: Jotul North America Incorporated (Ratos AB)
• Original Assignee: Jotul North America Incorporated (Ratos AB)
• Inventors: Purinton, Roger W., Malloy, Shawn T., Labelle, Anthony R., Spencer, Shane L., Johnson, Dana M.
• Primary Examiner(s): Gartenberg, Ehud
• Assistant Examiner(s): Barrow, James G.
• Application Number:
  US10/744,515
• Publication Number:
  US 20050136368A1
• Time in Patent Office: 798 Days
• Field of Search: 431/354, 431/125, 431/154, 431/326, 431/328, 431/329, 126/39.E, 126/512, 295/13, 295/09, 295/05, 294/63, 292/435, 239/55, 239/56, 723/792, 723/794, 72324-341, 403/326, 403/329
• US Class Current: 431/154
• CPC Class Codes: F23C 5/02 Structural details of mounting
• CPC Class Codes: F23D 14/085 with injector axis inclined to the burner head axis
• CPC Class Codes: F23D 2212/20 metallic
• CPC Class Codes: F24C 3/006 simulating flames
• CPC Class Codes: Y10T 29/49922 by bending over projecting prongs
• CPC Class Codes: Y10T 29/53709 Overedge assembling means
• CPC Class Codes: Y10T 403/606 Leaf spring

Abstract

A gas burner assembly includes in one embodiment a top plate having at least one port for discharging fuel and a downwardly-depending, peripheral edge having a plurality of spaced-apart slots, and a bottom base having a peripheral edge disposed within the downwardly-depending peripheral edge of the top plate. A gasket is disposed between the base and the plate. A venturi tube is attached to the base with a tube holder. The plate is attachable to the base by displacing and/or expanding a portion of the downwardly-depending, peripheral edge adjacent the slots to form a plurality of spaced-apart, inwardly-extending tabs disposed under the peripheral edge of the base. Methods for assembling and gas fired appliances employing gas burner assemblies are also disclosed. Further, attachment means and methods for attaching a first member to a second member using such displaceable and/or expandable tabs are also disclosed.

Claims

1. A gas burner assembly comprising:

a gas burner having;

a top plate comprising stainless steel and having at least one port for discharging fuel and a perpendicular, peripheral edge having a plurality of horizontally-extending spaced-apart open slots;

a bottom base having a peripheral edge disposed within said peripheral edge of said top plate; and

wherein said bottom base being attached to said top plate by plastically-deformed portions under said slots of said peripheral edge of said top plate forming a plurality of spaced-apart, inwardly-extending hollow tabs disposed under said peripheral edge of said bottom base.

2. The gas burner assembly of claim 1 wherein said plurality of inwardly-extending tabs comprises a plurality of spaced-apart, generally inwardly extending V-shaped tabs.

3. The gas burner assembly of claim 1 wherein said plurality of spaced-apart tabs are operable to maintain a gas tight seal between said top plate and said bottom base.

4. The gas burner assembly of claim 1 further comprising a gasket disposed between said bottom base and said top plate.

5. The gas burner assembly of claim 1 wherein a distance between adjacent slots are greater than a length of said slots.

6. The gas burner assembly of claim 1 further comprising a venturi tube assembly attached to said bottom base with a tube holder.

7. A gas fired appliance comprising:

a housing, and

a gas burner assembly of claim 1 disposed in said housing.

8. The gas fired appliance of claim 7 further comprising at least one ceramic log disposed above said gas burner assembly.

9. The gas burner assembly of claim 1 wherein said bottom base comprises a different rate of thermal expansion from said top plate.

10. The gas burner assembly of claim 1 wherein said bottom base comprises cast iron.

11. The gas burner assembly of claim 10 wherein said plurality of inwardly-extending tabs comprises a plurality of spaced-apart, generally inwardly extending V-shaped tabs.

12. The gas burner assembly of claim 10 wherein said plurality of spaced-apart tabs are operable to maintain a gas tight seal between said top plate and said bottom base.

13. The gas burner assembly of claim 10 further comprising a gasket disposed between said bottom base and said top plate.

14. The gas burner assembly of claim 10 wherein a distance between adjacent slots are greater than a length of said slots.

15. The gas burner assembly of claim 10 further comprising a venturi tube assembly attached to said bottom base with a tube holder.

16. A gas fired appliance comprising

a housing, and

a gas burner assembly of claim 10 disposed in said housing.

17. The gas fired appliance of claim 16 further comprising at least one ceramic log disposed above said gas burner assembly.

18. A gas burner assembly comprising:

a gas burner having;

a top plate comprising stainless steel and having at least one port for discharging fuel and a perpendicular peripheral edge having a plurality of horizontally-extending spaced-apart open slots;

a bottom base having a peripheral edge disposed within said peripheral edge of said top plate;

a gasket disposed between said bottom base and said top plate;

a venturi tube assembly;

a tube holder for attaching said venture tube assembly to said bottom base; and

wherein a distance between adjacent slots are greater than a length of said slots;

said bottom base being attached to said top plate by plastically-deformed portions under said slots of said peripheral edge of said top plate forming a plurality of spaced-apart, inwardly-extending hollow tabs disposed under said peripheral edge of said bottom base; and

said gasket and said bottom base are sandwiched between a bottom surface of said top plate and said tabs and operable to maintain a gas tight seal between said top plate, said bottom base, and said gasket.

19. The gas burner assembly of claim 18 wherein said plurality of inwardly-extending tabs comprises a plurality of spaced-apart, generally inwardly extending V-shaped tabs.

20. A gas fired appliance comprising

a housing, and

a gas burner assembly of claim 18 disposed in said housing.

21. The gas fired appliance of claim 20 further comprising at least one ceramic log disposed above said gas burner assembly.

22. The gas burner assembly of claim 18 wherein said bottom base comprises a different rate of thermal expansion from said top plate.

23. The gas burner assembly of claim 18 wherein said bottom base comprises cast iron.

24. The gas burner assembly of claim 23 wherein said plurality of inwardly-extending tabs comprises a plurality of spaced-apart, generally inwardly extending V-shaped tabs.

25. A gas fired appliance comprising

a housing, and

a gas burner assembly of claim 23 disposed in said housing.

26. The gas fired appliance of claim 25 further comprising at least one ceramic log disposed above said gas burner assembly.

27. A method for assembling a gas burner assembly, the method comprising:

positioning a bottom base having a peripheral edge within a top plate comprising stainless steel and having at least one port and having a perpendicular peripheral edge with horizontally-extending spaced-apart open slots adjacent to the periphery of the top plate; and

plastically-deforming portions under the slots of the peripheral edge of the top plate to form a plurality of spaced-apart hollow tabs under the peripheral edge of the bottom base to attach the top plate to the bottom base.

28. The method of claim 27 wherein the plastically-deforming comprises forming a plurality of spaced-apart, generally inwardly extending V-shaped tabs.

29. The method of claim 27 further comprising forming a gas tight seal between the top plate and the bottom base.

30. The method of claim 29 further comprising positioning a gasket between the top plate and the bottom base.

31. The method of claim 27 wherein the bottom base comprises a different rate of thermal expansion from the top plate.

32. The method of claim 27 wherein the bottom base comprises cast iron.

33. The method of claim 32 wherein the plastically-deforming comprises forming a plurality of spaced-apart, generally inwardly extending V-shaped tabs.

34. The method of claim 32 further comprising forming a gas tight seal between the top plate and the bottom base.

35. The method of claim 34 further comprising positioning a gasket between the top plate and the bottom base.