IP Library Granted Patent US 11,230,806
Granted Patent B2
US 11,230,806 · App. 16/663,401 · Granted Jan 25, 2022

Fabric treating appliance with pelletizer

Inventors: Rodney Michael Welch (Eau Claire, MI); Erica Roberts (Stevensville, MI)
Assignee: Whirlpool Corporation
D06F58/22D06F25/00D06F39/10
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Quick Facts
Patent No.
US 11,230,806
App. No.
16/663,401
Filed
Oct 25, 2019
Granted
Jan 25, 2022
Kind
B2
Art Unit
3753
USPC
34/82
Abstract

A laundry treating appliance having a lint pelletizer whereby clothing fibers retained within a fluid can be extracted from the fluid and formed into a pellet. The laundry treating appliance can be a clothes washer or a clothes dryer. The clothes washer or clothes dryer can be a vertical or horizontal axis, either of which can be top-loading or front loading.

Claims (27)

1. A laundry treating appliance comprising:

a treating chamber with a fluid circuit; and

a lint pelletizer having a hopper, a ram, and a lint trap coupled to the fluid circuit;

wherein lint from the fluid circuit is trapped by the lint trap and formed into a pellet by the lint pelletizer.

2. The laundry treating appliance of claim 1 wherein the lint trap comprises at least one of a filter or screen located in the fluid circuit.

3. The laundry treating appliance of claim 1 wherein the lint trap further comprises a wiper movable over the lint trap to move lint on the lint trap to the lint pelletizer.

4. The laundry treating appliance of claim 3 wherein the lint trap further comprises a screen and the wiper moves across the screen.

5. The laundry treating appliance of claim 1 wherein the ram compresses the lint into a pellet.

6. The laundry treating appliance of claim 5 wherein the ram further comprises a heater that applies heat to the pellet.

7. The laundry treating appliance of claim 6 wherein the ram further comprises a pellet chamber.

8. The laundry treating appliance of claim 7 wherein the heater comprises at least one of a film heater or a coil resistive heater located about at least a portion of the pellet chamber.

9. The laundry treating appliance of claim 7 wherein the ram further comprises a ram piston reciprocating in the pellet chamber to compress the lint into the pellet.

10. The laundry treating appliance of claim 7 wherein the heater is located around at least a portion of the pellet chamber.

11. The laundry treating appliance of claim 10 wherein the pellet chamber has drain holes.

12. The laundry treating appliance of claim 1 wherein the hopper connects the lint trap to the pelletizer.

13. The laundry treating appliance of claim 12 wherein the lint trap comprises a lint mover that moves the lint from the lint trap into the hopper.

14. The laundry treating appliance of claim 13 wherein the hopper comprises a hopper piston reciprocating within the hopper to move the lint from the hopper into the lint pelletizer.

15. The laundry treating appliance of claim 1 wherein the laundry treating appliance is at least one of a clothes washer or a clothes dryer.

16. A method for pelletizing lint entrained in waste liquid in a household appliance, the method comprising:

trapping the lint from the waste liquid,

compressing the trapped lint into a pellet, and

fusing at least a portion of the lint in the pellet wherein the fusing results in a mechanical or chemical connection between at least some fibers forming the lint.

17. The method of claim 16 wherein the fusing comprises fusing at least some of the lint on an exterior of the pellet.

18. The method of claim 16 wherein the fusing comprises applying sufficient heat to at least soften at least some of the lint on an exterior of the pellet.

19. The method of claim 18 wherein the applied heat is sufficient to render molten at least some of the lint on the exterior of the pellet.

20. The method of claim 19 wherein the applied heat is sufficient to melt at least some of the lint on the exterior of the pellet.

21. The method of claim 16 wherein the pellet is less than ¼″ wide and ½″ long.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 25, 2019
From: WELCH, RODNEY MICHAEL; ROBERTS, ERICA
To: WHIRLPOOL CORPORATION
Reel/Frame 050822/0645 →
Continuity (2)
Provisional Application 62785765 · Dec 28, 2018
Related Publication 20200208337A1 · Jul 2, 2020
Cited By (2)
US 12,331,448 US 12,618,191