Convection oven with modular control panel

• US 5,864,120 A
• Filed: 02/28/1997
• Issued: 01/26/1999
• Est. Priority Date: 02/28/1997
• Status: Expired due to Term

• Current Assignee: Middleby Marshall Incorporated (Middleby Corporation)
• Original Assignee: Middleby Marshall Incorporated (Middleby Corporation)
• Inventors: Vroom, Robert, Hotard, Thomas C.
• Primary Examiner(s): Walberg, Teresa J.
• Assistant Examiner(s): Pelham, J.
• Application Number:
  US08/808,423
• Time in Patent Office: 697 Days
• Field of Search: 219/412-414, 219/507, 219/702, 219/715, 219/720, 219/400, 126/21 A
• US Class Current: 219/400
• CPC Class Codes: F24C 15/325 electrically-heated
• CPC Class Codes: F24C 7/087 of electric circuits regulating heat

Abstract

A convection oven includes a plurality of modular control panels which can be interchanged with one another to change the functional capability of the oven. The base unit contains the basic structural and mechanical components of the convection oven including a heating element and blower. Each of the individual control panels can control the operation of the heating element and blower in the base unit. Each control panel will include a different group of controls. All of the available control panels plug into a standard interface on the base unit. Therefore, the functional capabilities of the oven can be changed by removing the existing control panel on the base unit and reinstalling a different control panel.

Claims

1. A convection oven comprising:

a) a base unit including;

i) a cooking cavity to receive food items to be cooked;

ii) a plurality of controlled elements including a heating element for heating air and a blower for circulating said heated air in said cooking chamber;

b) a plurality of separate, modular control panels which can be inserted into said base unit, each of said modular control panels including;

i) a plurality of controls for controlling the operation of said controlled elements;

ii) a support panel to which said controls are mounted; and

c) connecting means for connecting said control panel to said controlled elements on said base unit;

d) wherein each control panel includes a set of controls that differ from the controls on the other modular control panels so that the functional capability of said oven can be varied by interchanging said control panels in said base unit.

2. The convection oven of claim 1 wherein said controlled elements includes an interior light within said cooking cavity in said base unit.

3. The convection oven of claim 1 wherein said heating element is a gas burner and said controlled elements includes a gas valve in said base unit to control the gas supply to the gas burner.

4. The convection oven of claim 1 wherein said controlled elements includes an electric motor for actuating said blower in said base unit.

5. The convection oven of claim 1 wherein said connecting means is a plug-type connector.

6. The convection oven of claim 1 wherein one of said control panels includes controls to control the temperature of the cooking cavity during a cooking cycle.

7. The convection oven of claim 6 wherein one of said control panels includes controls adapted to maintain the temperature of the cooking cavity at a predetermined hold temperature at the end of a cooking cycle.

8. The convection oven of claim 7 wherein one of said control panels includes controls adapted to cause the intermittent operation of the blower for a predetermined period of time during the cooking cycle.

9. A convection oven comprising:

a) a base unit including;

i) a cooking cavity to receive food items to be cooked;

ii) a plurality of controlled elements including a heating element for heating air and a blower for circulating said heated air in said cooking chamber;

iii) an interface connector on said base unit which is electrically connected to said controlled elements;

b) a plurality of separate, modular control panels which can be inserted into said base unit, each of said modular control panels including;

i) a plurality of controls for controlling the operation of said controlled elements;

ii) a support panel to which said controls are mounted;

iii) an interface connector on said control panel which is electrically connected to said controls and which mates with the interface connector on said base unit;

c) mounting means for removably mounting said control panel to said base unit;

d) wherein each control panel includes a set of controls that differ from the controls on the other modular control panels so that the functional capability of said oven can be varied by interchanging said control panels in said base unit.

10. The convection oven of claim 9 wherein said controlled elements includes an interior light within said cooking cavity in said base unit.

11. The convection oven of claim 9 wherein said heating element is a gas burner and said controlled elements includes a gas valve in said base unit to control the gas supply to the gas burner.

12. The convection oven of claim 9 wherein said controlled elements includes an electric motor for actuating said blower in said base unit.

13. The convection oven of claim 9 wherein said interface connectors are plug-type connectors.

14. The convection oven of claim 9 wherein one of said control panels includes controls to control the temperature of the cooking cavity during a cooking cycle.

15. The convection oven of claim 14 wherein one of said control panels includes controls adapted to maintain the temperature of the cooking cavity at a predetermined hold temperature at the end of a cooking cycle.

16. The convection oven of claim 15 wherein one of said control panels includes controls adapted to cause the intermittent operation of the blower for a predetermined period of time during the cooking cycle.

17. The convection oven of claim 9 wherein said mounting means comprises a hinge.

18. The convection oven of claim 17 wherein said hinge includes a first part mounted to said base unit and a second part mounted to said control panel, wherein one of said first and second parts includes a hinge pin that slides into the other part.