SELF-CLEANING ROTISSERIE OVEN INCLUDING OVEN DOOR WITH LABYRINTH SEAL

• US 20090178579A1
• Filed: 11/26/2008
• Published: 07/16/2009
• Est. Priority Date: 01/15/2008
• Status: Abandoned Application

• Current Assignee: Premark FEG LLC (Illinois Tool Works Inc.)
• Original Assignee: Premark FEG LLC (Illinois Tool Works Inc.)
• Inventors: Mullenix, Scott A., Weber, Matthew A., Heiser, James M., Valentine, Richard D.
• Application Number:
  US12/324,333
• Publication Number:
  US 20090178579A1
• Time in Patent Office: Days
• US Class Current: 99/421.H
• CPC Class Codes: A47J 37/042 with food supports arranged on wheels or spiders rotating about a horizontal axis
• CPC Class Codes: F24C 14/005 using a cleaning liquid
• CPC Class Codes: F24C 15/021 sealings for doors or transparent panel

Abstract

A self-cleaning rotisserie oven including an oven cabinet including an internal cooking chamber with an access opening. The oven cabinet includes an access opening frame about the access opening. A self-cleaning system is provided for cleaning the cooking chamber with a liquid. A rotor is located within the cooking chamber. A door is mounted on the oven cabinet. The door spanning the access opening with the door in a closed configuration and providing access to the cooking chamber when in an open configuration. With the door in the closed configuration, the door including a plate extending inwardly toward the oven chamber. The plate is located to an interior side of a lip extending outwardly from the access opening frame and toward the door thereby defining a tortuous path for liquid delivered from the self-cleaning system to follow.

Claims

1. A self-cleaning rotisserie oven, comprising:

an oven cabinet including an internal cooking chamber with an access opening, the oven cabinet including an access opening frame about the access opening;

a self-cleaning system for cleaning the cooking chamber with a liquid;

a rotor located within the cooking chamber; and

a door mounted on the oven cabinet, the door spanning the access opening with the door in a closed configuration, the door providing access to the cooking chamber when in an open configuration,

with the door in the closed configuration the door including a plate extending inwardly toward the oven chamber, the plate being located to an interior side of a lip extending outwardly from the access opening frame and toward the door thereby defining a tortuous path for liquid delivered from the self-cleaning system to follow.

2. The self-cleaning rotisserie oven of claim 1, wherein the lip extending outwardly from the access opening frame is a first lip, the door including a second lip extending inwardly toward the frame and being located to an exterior side of the first lip.

3. The self-cleaning rotisserie oven of claim 2, wherein the plate and the second lip define part of a vertically extending, U-shaped channel that receives the first lip.

4. The self-cleaning rotisserie oven of claim 3, wherein the door includes a third lip extending inwardly toward the frame and being located to an exterior side of the second lip.

5. The self-cleaning rotisserie oven of claim 4 further comprising a sump pan positioned below the door to collect liquid that falls from the tortuous path.

6. The self-cleaning rotisserie oven of claim 5, wherein the sump pan is arranged and configured to direct the liquid toward the oven chamber away from the door.

7. The self-cleaning rotisserie oven of claim 1 further comprising a door cooling system comprising an air outlet above the door configured to direct air across an outer surface of the door to cool the door.

8. The self-cleaning rotisserie oven of claim 7 further comprising an electronics control space above the cooking chamber within the oven cabinet, the air directed across the outer surface of the door first passes through the electronics control space for cooling thereof.

9. The self-cleaning rotisserie oven of claim 1, wherein the door defines a plane than spans the door frame and the plate extends inwardly toward the oven chamber and out of the plane of the door at an opening side of the door.

10. A self-cleaning rotisserie oven, comprising:

an oven cabinet including an internal cooking chamber with an access opening, the oven cabinet including an access opening frame about the access opening;

a self-cleaning system for cleaning the cooking chamber with a liquid;

a rotor located within the cooking chamber;

a door mounted on the oven cabinet, the door spanning the door frame with the door in a closed configuration, the door providing access to the cooking chamber when in an open configuration; and

a door cooling system comprising an air outlet above the door configured to direct air across an outer surface of the door to cool the door.

11. The self-cleaning rotisserie oven of claim 10 further comprising an electronics control space above the cooking chamber within the oven cabinet, the air directed across the outer surface of the door first passes through the electronics control space for cooling thereof.

12. The self-cleaning rotisserie oven of claim 10 further comprising

a labyrinth seal extending vertically along an opening side of the door defining a tortuous leak path;

and

a sump pan positioned below the door to collect liquid that falls from the tortuous leak path.

13. The self-cleaning rotisserie oven of claim 12, wherein the sump pan is arranged and configured to direct the liquid toward the oven chamber away from the door.

14. A method of inhibiting leaking of a self-cleaning rotisserie oven including an oven cabinet including an internal cooking chamber with an access opening, the oven cabinet including an access opening frame about the access opening, a self-cleaning system for cleaning the cooking chamber with a liquid and a rotor located within the cooking chamber, the method comprising:

mounting a door to the oven cabinet, the door spanning the access opening with the door in a closed configuration, the door providing access to the cooking chamber when in an open configuration; and

providing the door with a labyrinth seal such that with the door in the closed configuration the door including a plate extending inwardly toward the oven chamber, the plate being located to an interior side of a lip extending outwardly from the access opening frame and toward the door thereby defining a tortuous path for liquid delivered from the self-cleaning system to follow.

15. The method of claim 14 further comprising collecting liquid falling from the labyrinth seal in a sump pan positioned below the door.

16. The method of claim 15 further comprising directing the liquid collected in the sump pan toward the oven chamber away from the door.

17. The method of claim 14 further comprising cooling the door using a door cooling system comprising an air outlet above the door configured to direct air across the door.

18. The method of claim 17 further comprising cooling an electronics control space above the cooking chamber within the oven cabinet using the door cooling system.