Holding oven

Patent metadata

Field	Value
Publication number	US-9907436-B2
Application number	US-201313968104-A
Country	US
Kind code	B2
Filing date	Aug 15, 2013
Priority date	Feb 15, 2011
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

Methods, ovens, and associated apparatus. Ovens and methods are adapted for maintaining the quality of a pre-cooked food product. Rapid temperature and/or relative humidity restoration may be used. Ovens may include a partition movable to vary sizes of oven cavities. Ovens may include removable interior panels. Humidification mechanisms are adapted for generating water vapor which may be used to maintain the quality of a pre-cooked food product.

First claim

What is claimed is:

1. An oven comprising:
a food receiving space for receiving food; and
a humidifying mechanism for increasing humidity in the food receiving space, the humidifying mechanism including
a rotor having a flexible surface, the rotor being configured for rotating about an axis of rotation, the flexible surface being deformable for breakup of mineral deposits on the flexible surface, and
a water-delivery mechanism including a water line having a first end, a second end, and a length extending from the first end to the second end, the water-delivery mechanism being configured for delivering water to the flexible surface of the rotor,

wherein the flexible surface has an at rest configuration when the rotor is not rotating and the rotor is configured such that the flexible surface deforms relative to the at rest configuration when the rotor rotates about the axis of rotation; and
wherein the flexible surface includes first and second portions, the first portion being positioned a first distance from the axis of rotation and the second portion being positioned a second greater distance from the axis of rotation, and wherein the flexible surface is configured such that the second portion sags with respect to the first portion when the rotor is in the at rest configuration and sag of the second portion with respect to the first portion decreases when the rotor is rotated.

2. The oven as set forth in claim 1 wherein the rotor is configured such that the flexible surface flexes relative to the at rest configuration when the rotor is rotating.

3. The oven as set forth in claim 1 wherein the flexible surface is configured to elongate in a direction generally perpendicular to the axis of rotation when the rotor is rotated.

4. The oven as set forth in claim 1 wherein the rotor has a thickness in a direction generally parallel to the axis of rotation, and the rotor is configured to decrease in thickness when the rotor is rotated.

5. The oven as set forth in claim 1 wherein the rotor comprises a rotor body having the flexible surface, the rotor body comprising flexible material.

6. The oven as set forth in claim 1 wherein the rotor comprises a rotor body having the flexible surface, the rotor body comprising elastomeric material.

7. The oven as set forth in claim 1 wherein the oven includes a blower configured for forcing gas into the food receiving space, the rotor being separate from and not mounted on the blower.

8. The oven as set forth in claim 1 wherein the rotor is mounted in a receptacle, the receptacle including a side wall surrounding the rotor.

9. The oven as set forth in claim 8 further comprising a heating element configured for heating the receptacle for vaporizing the water delivered to the flexible surface of the rotor.

10. A method for increasing humidity in a food receiving space of an oven, the method comprising:
delivering water to a flexible surface of a rotor,
rotating the rotor about an axis of rotation,
heating the water to change the water to water vapor, and
deforming the flexible surface to breakup mineral deposits on the flexible surface,
wherein the flexible surface has an at rest configuration when the rotor is not rotating, and wherein rotating the rotor causes the flexible surface of the rotor to deform relative to the at rest configuration,
wherein a peripheral portion of the flexible surface saps with respect to a central portion of the flexible surface when the rotor is not rotating and the sag decreases when the rotor rotates.

11. The method as set forth in claim 10 wherein rotating the rotor about the axis of rotation moves the water away from the axis of rotation before the water changes to water vapor.

12. The method as set forth in claim 10 wherein rotating the rotor about the axis of rotation causes the water delivered to the flexible surface to move away from the axis of rotation toward a heated wall surrounding the flexible rotor for changing the water to water vapor, the heated wall being different from a blower wheel of the oven.

13. The method as set forth in claim 10 wherein the axis of rotation is a first axis of rotation and the method further comprises rotating a blower about a second axis of rotation different than the first axis of rotation for moving the water vapor into the food receiving space.

14. The oven as set forth in claim 5 wherein the rotor body has a generally disc shape.

15. The oven as set forth in claim 1 wherein the rotor comprises a rotor body having a face facing generally parallel with the axis of rotation, the face including said flexible surface.

16. An oven comprising:
a food receiving space for receiving food; and
a humidifying mechanism for increasing humidity in the food receiving space, the humidifying mechanism including
a rotor having a flexible surface, the rotor being configured for rotating about an axis of rotation, the flexible surface being deformable for breakup of mineral deposits on the flexible surface, and
a water-delivery mechanism including a water line having a first end, a second end, and a length extending from the first end to the second end, the water-delivery mechanism being configured for delivering water to the flexible surface of the rotor,

wherein the rotor comprises a rotor body having a face facing generally parallel with the axis of rotation, the face including said flexible surface,
wherein the rotor body is foldable without irreversibly deforming the rotor body.

17. The oven as set forth in claim 1 wherein the flexible surface is configured to deform automatically when the rotor is rotated about the axis of rotation.

18. The method as set forth in claim 10 wherein deforming the flexible surface comprises deforming the flexible surface in a direction in which the axis of rotation extends.

Assignees

• Duke Mfg Co

Inventors

• Reese Robert J
• Wright John Edward
• Tiberio Philip
• Shei Steven M
• Macy Ralph Lee
• Green Christopher Seay
• Stettes Gregory Glen
• Markwardt Jeffrey Steven

Classifications

• H05B2203/003

  using serpentine layout · CPC title

• A47J39/006

  for either storing and preparing or for preparing food on serving trays, e.g. heating, thawing, preserving · CPC title

• A21B3/04

  Air-treatment devices for ovens, e.g. regulating humidity · CPC title

• A47J39/003 Primary

  with forced air circulation · CPC title

• B23P19/04

  for assembling or disassembling parts · CPC title