Method and apparatus for drying articles

Patent metadata

Field	Value
Publication number	US-9540759-B2
Application number	US-201615177748-A
Country	US
Kind code	B2
Filing date	Jun 9, 2016
Priority date	Oct 2, 2013
Publication date	Jan 10, 2017
Grant date	Jan 10, 2017

Abstract

A method and apparatus for drying textile material with a radio frequency (RF) applicator and a controller, the method includes energizing the RF applicator to generate a field of electromagnetic radiation (e-field), measuring a parameter related to the energization of the RF applicator, determining a drying cycle of operation in the controller based on the measured parameter, and controlling the energization of the RF applicator according to the determination of the drying cycle of operation, wherein the textile material is dried.

First claim

What is claimed is:

1. A method for drying textile material with a radio frequency (RF) applicator having an anode element, a cathode element, each anode and cathode element supported on a support element, and a controller, the method comprising:
capacitively coupling the anode element to the cathode element;
energizing the RF applicator to generate a field of electromagnetic radiation (e-field) within the radio frequency spectrum between the anode and cathode elements;
measuring a parameter related to the energization of the RF applicator at each of the anode and cathode elements;
determining a drying cycle of operation in the controller based on the measured parameter; and
controlling the energization of the RF applicator according to the determination of the drying cycle of operation wherein liquid in textile material residing within the e-field will be dielectrically heated to effect a drying of the textile material.

2. The method of claim 1 wherein the parameter is at least one of voltage or current.

3. The method of claim 1 wherein the determining step further comprises selection of at least one predetermined cycles of operation.

4. The method of claim 3 wherein the determining step is based on a comparison of the measured parameter to at least one predetermined cycle of operation.

5. The method of claim 1 wherein the determining step calculates a rate at which the textile material is drying.

6. The method of claim 5 wherein the determining step calculates the amount of time until the textile material is dry.

7. The method of claim 1 , further comprising identifying characteristics of the textile material, and wherein the determining step is based in part on the identification of the textile material characteristics.

8. The method of claim 7 wherein the textile material characteristics comprise at least one of size, quantity, material, acceptable heat level, or acceptable power level.

9. The method of claim 8 , further comprising manual selection of one or more textile material characteristics.

10. The method of claim 8 , further comprising automatic selection of one or more textile material characteristics.

11. The method of claim 1 wherein the determining step further comprises defining at least one of a maximum RF power or voltage to be applied during the controlling step.

12. The method of claim 11 wherein the defining step further comprises defining at least one of a maximum RF power or voltage for each of a plurality of power levels to be applied during the controlling step.

Assignees

• Whirlpool Co

Inventors

• Herman Mark L
• Putnam Daniel M

Classifications

• D06F2101/02

  Characteristics of laundry or load · CPC title

• D06F2105/28

  Electric heating · CPC title

• D06F60/00

  Drying not provided for in groups D06F53/00 - D06F59/00 · CPC title

• F26B3/347

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

• D06F58/28 Primary

  Textiles & Paper · mapped topic