Cooking appliance having a hob

Patent metadata

Field	Value
Publication number	US-11473775-B2
Application number	US-201916536109-A
Country	US
Kind code	B2
Filing date	Aug 8, 2019
Priority date	Aug 8, 2019
Publication date	Oct 18, 2022
Grant date	Oct 18, 2022

Abstract

A cooking appliance includes a cooking area. A hob can be located in the cooking area. The hob includes an injector holder base defining an air chamber and a burner interface chamber. An injector holder cover overlies the injector holder base. The injector holder base and the injector holder cover collectively define a venturi tube extending between the air chamber and the burner interface chamber. An injector is carried by at least one of the injector holder base or injector holder cover. A burner is supported on the injector holder cover.

First claim

What is claimed is:

1. A cooking appliance comprising:
a cooking area; and
a hob located in the cooking area and comprising:
an injector holder base defining an air chamber, a burner interface chamber, and a first open channel fluidly coupling the air chamber and the burner interface chamber;
an injector holder cover overlying the injector holder base and stamped to the injector holder base, such that the injector holder cover and the injector holder base are fastened together by an interference fit or by co-deflection caused by stamping, without additional fastening mechanisms, the injector holder cover having a second open channel confronting the first open channel to collectively define a venturi tube extending between the air chamber and the burner interface chamber;
an injector carried by at least one of the injector holder base or injector holder cover and fluidly coupled to the air chamber opposite the venturi tube; and
a burner supported on the injector holder cover and fluidly coupled to the burner interface chamber.

2. The cooking appliance of claim 1 wherein at least one of the injector holder base or the injector holder cover is formed by molding a sheet of metal prior to stamping the injector holder base and the injector holder cover to one another.

3. The cooking appliance of claim 2 wherein the sheet of metal comprises a sheet of iron.

4. The cooking appliance of claim 2 wherein both of the injector holder base and the injector holder cover are formed by molding a sheet of metal prior to stamping the injector holder base and the injector holder cover to one another.

5. The cooking appliance of claim 1 wherein the injector holder base further comprises at least one depression extending alongside at least a portion of the length of the first open channel.

6. The cooking appliance of claim 5 wherein the injector holder cover further comprises at least one depression extending alongside at least a portion of the length of the second open channel.

7. The cooking appliance of claim 6 wherein the at least one depression of the injector holder cover is received within the at least one depression of the injector holder base when the injector holder cover overlies the injector holder base.

8. The cooking appliance of claim 7 wherein the at least one depression of the injector holder cover is resiliently retained within the at least one depression of the injector holder base when the injector holder cover is stamped to the injector holder base.

9. The cooking appliance of claim 8 wherein the at least one depression of the injector holder cover is resiliently retained within the at least one depression of the injector holder base by an interference fit or by co-deflection of the depressions when the injector holder cover is stamped to the injector holder base.

10. The cooking appliance of claim 6 wherein the at least one depression extending alongside the at least a portion of the length of the first open channel comprises first and second depressions extending along opposite sides of the at least a portion of the length of the first open channel.

11. The cooking appliance of claim 10 wherein the at least one depression extending alongside the at least a portion of the length of the second open channel comprises first and second depressions extending along opposite sides of the at least a portion of the length of the second open channel.

12. The cooking appliance of claim 11 wherein the first and second depressions of the injector holder cover are received within the first and second depressions of the injector holder base when the injector holder cover overlies the injector holder base.

13. The cooking appliance of claim 12 wherein the first and second depressions of the injector holder cover are resiliently retained within the first and second depressions of the injector holder base when the injector holder cover is stamped to the injector holder base.

14. The cooking appliance of claim 13 wherein the first and second depressions of the injector holder cover are resiliently retained within the first and second depressions of the injector holder base by an interference fit or by co-deflection of the depressions when the injector holder cover is stamped to the injector holder base.

15. The cooking appliance of claim 14 wherein the first and second depressions of the injector holder cover are parallel to one another and the first and second depressions of the injector holder base are parallel to one another.

16. The cooking appliance of claim 1 wherein the injector holder cover and the injector holder base are fastened together only by the interference fit or by the co-deflection caused by stamping.

17. A cooking appliance comprising:
a cooking area; and
a hob located in the cooking area and comprising:
an injector holder base defining an air chamber, a burner interface chamber, and a first open channel fluidly coupling the air chamber and the burner interface chamber;
an injector holder cover overlying the injector holder base and stamped to the injector holder base, such that the injector holder cover and the injector holder base are fastened together by co-deflection caused by stamping, without additional fastening mechanisms, the injector holder cover having a second open channel confronting the first open channel to collectively define a venturi tube extending between the air chamber and the burner interface chamber;
an injector carried by at least one of the injector holder base or injector holder cover and fluidly coupled to the air chamber opposite the venturi tube; and
a burner supported on the injector holder cover and fluidly coupled to the burner interface chamber.

18. The cooking appliance of claim 17 wherein the injector holder cover and the injector holder base are fastened together only by the co-deflection caused by stamping.

19. A cooking appliance comprising:
a cooking area; and
a hob located in the cooking area and comprising:
an injector holder base defining an air chamber, a burner interface chamber, and a first open channel fluidly coupling the air chamber and the burner interface chamber;
an injector holder cover overlying the injector holder base and stamped to the injector holder base, such that the injector holder cover and the injector holder base are fastened together by co-deflection caused by stamping, the injector holder cover having a second open channel confronting the first open channel to collectively define a venturi tube extending between the air chamber and the burner interface chamber;
an injector carried by at least one of the injector holder base or injector holder cover and fluidly coupled to the air chamber opposite the venturi tube; and
a burner supported on the injector holder cover and fluidly coupled to the burner interface chamber.

20. The cooking appliance of claim 19 wherein the injector holder cover and the injector holder base are fastened together only by the co-deflection caused by stamping.

Assignees

• Whirlpool Co

Inventors

• Ferretti Siro
• Lacche Tiziano
• Perticara Giuseppino

Classifications

• F23D14/065 Primary

  with injector axis inclined to the burner head axis · CPC title

• F24C3/082

  on stoves · CPC title

• F23D2213/00

  Burner manufacture specifications · CPC title

• F23D14/06 Primary

  with radial outlets at the burner head · CPC title

• F23D14/64

  with injectors · CPC title