Apparatus for drying articles

Patent metadata

Field	Value
Publication number	US-11078619-B2
Application number	US-202016850828-A
Country	US
Kind code	B2
Filing date	Apr 16, 2020
Priority date	Mar 23, 2015
Publication date	Aug 3, 2021
Grant date	Aug 3, 2021

Abstract

A treating apparatus for drying articles according to a predetermined cycle of operation. The treating apparatus includes a cylindrical drum having a circumferential wall, a pair of non-anode baffles spaced on the circumferential wall, and a third baffle positioned between the pair of non-anode baffles on the circumferential wall comprising an anode element having an anode contact point at the circumferential wall. The treating apparatus also has a first cathode element disposed between the third baffle and one of the pair of non-anode baffles along the circumference of the circumferential wall and a second cathode disposed between the third baffle and the other of the pair of non-anode baffles along the circumference of the circumferential wall. The treating apparatus also has a radio frequency (RF) generator coupled to the anode element and to the first and second cathode elements. The RF generator is selectively energizable to generate electromagnetic radiation between the first and second cathode elements such that articles positioned between the pair of non-anode baffles are in the electromagnetic radiation.

First claim

What is claimed is:

1. A treating apparatus for drying articles according to a predetermined cycle of operation, comprising:
a cylindrical drum having a circumferential wall;
a pair of non-anode baffles spaced on the circumferential wall;
a third baffle positioned between the pair of non-anode baffles on the circumferential wall comprising an anode element having an anode contact point at the circumferential wall;
a first cathode element disposed between the third baffle and one of the pair of non-anode baffles along the circumference of the circumferential wall and a second cathode disposed between the third baffle and the other of the pair of non-anode baffles along the circumference of the circumferential wall; and
a radio frequency (RF) generator coupled to the anode element and to the first and second cathode elements and selectively energizable to generate electromagnetic radiation between the first and second cathode elements such that articles positioned between the pair of non-anode baffles are in the electromagnetic radiation.

2. The treating apparatus of claim 1 wherein the entire first and second cathode elements are radially off-set from the anode element, with each of the first and second cathode elements having a cathode contact point at the circumferential wall.

3. The treating apparatus of claim 1 wherein the drum is rotatable about a non-vertical axis.

4. The treating apparatus of claim 3 wherein at least one of the anode element or the first or second cathode elements extend at least a portion of a length parallel to the non-vertical axis.

5. The treating apparatus of claim 3 wherein at least a portion of the first and second cathode elements are spaced by a radial length, with respect to the non-vertical axis, from the anode element.

6. The treating apparatus of claim 1 wherein the RF generator is at least one of intermittently or continuously energizable.

7. The treating apparatus of claim 1 wherein the first and second cathode elements are radially off-set from the anode element.

8. The treating apparatus of claim 7 wherein the two cathode elements and the anode element are radially arranged in an alternating configuration.

9. The treating apparatus of claim 1 wherein the first and second cathode elements extend radially about a majority of the circumferential wall.

10. The treating apparatus of claim 1 wherein the first and second cathode elements are disposed on an outer surface of the circumferential wall.

11. The treating apparatus of claim 1 wherein the first and second cathode elements are integrated within the circumferential wall.

12. The treating apparatus of claim 1 wherein the anode contact point is exposed on an outer surface of the circumferential wall.

13. The treating apparatus of claim 1 wherein the circumferential wall comprises a dielectric material.

14. A treating apparatus for drying articles according to a predetermined cycle of operation, comprising:
a rotatable cylindrical drum having an inner surface and an outer surface;
a plurality of baffles supported by the inner surface and wherein at least one first baffle includes an anode element and at least two baffles do not include an anode element;
a pair of cathode elements, wherein the anode element and the pair of cathode elements are angularly spaced relative to a rotational axis of the drum such that entirety of each of the pair of cathode elements is angularly off-set from the anode element, and wherein at least a portion of each of the cathode elements are angularly positioned on opposite sides of the first baffle and between the first baffle and one of the at least two non-anode baffles; and
a radio frequency (RF) generator coupled to the anode element and to the pair of cathode elements and selectively energizable to generate electromagnetic radiation such that articles positioned between the at least two non-anode baffles are in the electromagnetic radiation.

15. The treating apparatus of claim 14 wherein at least one of the anode element and the pair of cathode elements rotate with the drum.

16. The treating apparatus of claim 14 wherein the pair of cathode elements are supported by at least one of the inner surface or the outer surface of the drum.

17. The treating apparatus of claim 15 wherein the anode element and the pair of cathode elements are angularly spaced relative to the drum such that a portion of the articles can be laterally positioned on the inner surface of the drum between the anode element and the pair of cathode elements.

18. The treating apparatus of claim 17 wherein the anode element is positioned at a lowest horizontal position of the drum and the pair of cathode elements are angularly spaced such that a portion of the articles are laterally positioned between the anode element and the pair of cathode elements.

19. The treating apparatus of claim 14 wherein each of the pair of cathode elements are disposed about a subportion of at least one of the inner surface or the outer surface of the drum.

20. The treating apparatus of claim 14 wherein the drum is rotatable about a non-vertical axis.

Assignees

• Whirlpool Co

Inventors

• Herman Mark L
• Peterman Garry L

Classifications

• D06F58/04

  Details  (controlling or regulating devices D06F34/00) · CPC title

• F26B3/347

  Electromagnetic heating, e.g. induction heating or heating using microwave energy · CPC title

• D06F58/266 Primary

  Microwave heating equipment · CPC title

• D06F37/06

  Ribs, lifters, or rubbing means forming part of the receptacle · CPC title

• D06F58/26 Primary

  Heating arrangements, e.g. gas heating equipment (D06F58/18 takes precedence) · CPC title