Laundry appliance having a maintenance free lint removal system

Patent metadata

Field	Value
Publication number	US-11015281-B2
Application number	US-201816123352-A
Country	US
Kind code	B2
Filing date	Sep 6, 2018
Priority date	Sep 26, 2017
Publication date	May 25, 2021
Grant date	May 25, 2021

Abstract

A laundry appliance includes a drum for processing laundry. A blower delivers process air through an airflow path that includes the drum. A lint filter is positioned within the airflow path that separates particulate matter from the process air. A lint disposal mechanism removes entrapped lint particles from a surface of the lint filter.

First claim

What is claimed is:

1. A laundry appliance comprising:
a drum for processing laundry;
a blower that delivers process air through an airflow path that includes the drum;
a lint filter positioned within the airflow path that separates particulate matter from the process air; and
a lint disposal mechanism that removes entrapped lint particles from a surface of the lint filter, wherein the lint disposal mechanism includes a plurality of electrodes that each selectively produce an arcing electrical current between a respective electrode of the plurality of electrodes and a dedicated localized area of the lint filter, wherein the arcing electrical current is operated to incinerate the entrapped lint particles into at least a gas byproduct, wherein the lint disposal mechanism heat a portion of the lint filter to an incinerating temperature that is configured to incinerate the entrapped lint particles into at least the gas byproduct, and wherein the lint disposal mechanism defines as incinerating area that operates relative to the lint filter, wherein the incinerating area is substantially surrounded by an incinerator housing that includes a flue that is defined within a secondary air path, separate from the airflow path, and through which the gas byproduct is delivered from the incinerating area to an area external to the laundry appliance.

2. The laundry appliance of claim 1 , wherein the lint filter rotates through the incinerating area.

3. The laundry appliance of claim 1 , wherein the incinerator housing includes a combustion inlet that directs combustion air from outside the incinerator housing into the incinerating area.

4. The laundry appliance of claim 3 , wherein the combustion air and the gas byproduct are delivered from the incinerating area to the flue.

5. The laundry appliance of claim 2 , wherein the incinerator housing is positioned within a portion of the airflow path.

6. The laundry appliance of claim 5 , wherein the airflow path directs the process air around the incinerator housing and through a portion of the lint filter that is outside of the incinerator housing.

7. The laundry appliance of claim 2 , wherein the incinerator housing is positioned outside of the airflow path.

8. A laundry appliance comprising:
a drum for processing laundry;
a blower that delivers process air through an airflow path that includes the drum, wherein the process air transports particulate material from the drum and into the airflow path;
a lint separator positioned within the airflow path that separates the particulate material from the process air; and
a lint disposal mechanism that removes entrapped lint particles from the lint separator, wherein the lint disposal mechanism includes an incinerating mechanism that includes a plurality of electrodes that are each configured to act on a dedicated localized area of the lint separator to produce a gas byproduct, wherein an incinerator housing defines an incinerating area that includes the plurality of electrodes, and wherein the incinerator housing includes a flue that is defined within a secondary air path, separate from the airflow path, and through which the gas byproduct is delivered from the incinerating area to an external to the laundry appliance.

9. The laundry appliance of claim 8 , wherein the lint separator includes a lint filter that is positioned within the airflow path proximate the plurality of electrodes.

10. The laundry appliance of claim 9 , wherein the lint filter rotates through the incinerator housing and the incinerating area.

11. The laundry appliance of claim 8 , wherein the incinerator housing is positioned within a portion of the airflow path.

12. The laundry appliance of claim 10 , wherein the airflow path directs the process air around the incinerator housing and through a portion of the lint filter that is outside of the incinerator housing.

13. The laundry appliance of claim 8 , wherein the incinerator housing is positioned outside of the airflow path.

Assignees

• Whirlpool Co

Inventors

• Grider Jordan
• Halbleib Alexander
• Jones Christopher A
• Masters Jr Roy E
• Welch Rodney M
• Welsh Anthony B
• Roberts Erica L
• Kessler Thomas

Classifications

• D06F58/26

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

• D06F39/10

  Filtering arrangements · CPC title

• D06F2105/28

  Electric heating · CPC title

• D06F58/22 Primary

  Lint collecting arrangements · CPC title