IP Library › Granted Patent US 11,585,031
Granted Patent B2
US 11,585,031 · App. 17/177,527 · Granted Feb 21, 2023

Washing machine appliance having a retractable agitation element

Inventors: Brad Herschler (Louisville, KY); Eric Gerard Johnson (New Albany, IN)
Assignee: Haier US Appliance Solutions, Inc.
D06F21/14D06F13/06D06F21/08D06F37/12D06F37/40
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Quick Facts
Patent No.
US 11,585,031
App. No.
17/177,527
Granted
Feb 21, 2023
Kind
B2
Abstract

A washing machine appliance may include a tub, a basket, and a retractable agitation element. The basket may be rotatably positioned within the tub. The retractable agitation element may be positioned within the basket. The retractable agitation element may define a rotation axis. The retractable agitation element may include a lower shaft, an upper shaft, and a resilient fin. The upper shaft may be slidably mounted on lower shaft in telescoping cooperation to move axially along the rotation axis. The resilient fin may be movably attached to the lower shaft apart from the upper shaft.

Claims (37)

1. A washing machine appliance comprising:

a tub;

a basket rotatably positioned within the tub; and

a retractable agitation element positioned within the basket, the retractable agitation element defining a rotation axis and comprising

a lower shaft,

an upper shaft slidably mounted on lower shaft in telescoping cooperation to move axially along the rotation axis, and

a resilient fin attached to the lower shaft apart from the upper shaft,

wherein the resilient fin extends from an upper tip to a lower tip disposed below the upper tip, and

wherein the resilient fin is selectively compressed with the upper and lower shafts between a collapsed state and an expanded state, the collapsed state providing the upper and lower tips in closer proximity than the expanded state.

2. The washing machine appliance of claim 1 , wherein the resilient fin is further attached to the upper shaft.

3. The washing machine appliance of claim 2 , wherein the resilient fin comprises a helical coil wrapped about the upper and lower shafts.

4. The washing machine appliance of claim 1 , wherein the retractable agitation element further comprises an intermediate shaft mounted between the upper and lower shafts in telescoping cooperation.

5. The washing machine appliance of claim 1 , further comprising an impeller base rotatably mounted within the basket, and wherein the lower shaft is attached to the impeller base to rotate therewith.

6. The washing machine appliance of claim 5 , wherein the lower shaft is removably fixed to the impeller base.

7. A washing machine appliance comprising:

a tub;

a basket rotatably positioned within the tub;

an impeller base rotatably mounted within the basket; and

a retractable agitation element removably fixed to the impeller base, the retractable agitation element defining a rotation axis and comprising

a lower shaft,

an upper shaft slidably mounted on lower shaft in telescoping cooperation to move axially along the rotation axis, and

a resilient fin attached to the lower shaft apart from the upper shaft, the resilient fin being selectively compressed with the upper and lower shafts between a vertically collapsed state and a vertically expanded state.

8. The washing machine appliance of claim 7 , wherein the resilient fin is further attached to the upper shaft.

9. The washing machine appliance of claim 8 , wherein the resilient fin comprises a helical coil wrapped about the upper and lower shafts.

10. The washing machine appliance of claim 7 , wherein the resilient fin extends from an upper tip to a lower tip disposed below the upper tip, and wherein the resilient fin is selectively compressed with the upper and lower shafts between a collapsed state and an expanded state, the collapsed state providing the upper and lower tips in closer proximity than the expanded state.

11. The washing machine appliance of claim 7 , wherein the retractable agitation element further comprises an intermediate shaft mounted between the upper and lower shafts in telescoping cooperation.

12. The washing machine appliance of claim 7 , wherein the lower shaft is removably fixed to the impeller base.

13. A washing machine appliance comprising:

a tub;

a basket rotatably positioned within the tub;

an impeller base rotatably mounted within the basket; and

a retractable agitation element removably fixed to the impeller base, the retractable agitation element defining a rotation axis and comprising

a lower shaft removably fixed to the impeller base,

an upper shaft slidably mounted on lower shaft in telescoping cooperation to move axially along the rotation axis,

an intermediate shaft mounted between the upper and lower shafts in telescoping cooperation, and

a resilient fin slidably or pivotably attached to the lower shaft apart from the upper shaft, the resilient fin being selectively compressed with the upper, intermediate, and lower shafts between a vertically collapsed state and a vertically expanded state.

14. The washing machine appliance of claim 13 , wherein the resilient fin is further attached to the upper shaft, and wherein the resilient fin comprises a helical coil wrapped about the upper, intermediate, and lower shafts.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 17, 2021
From: HERSCHLER, BRAD; JOHNSON, ERIC GERARD
To: HAIER US APPLIANCE SOLUTIONS, INC.
Reel/Frame 055294/0828 →
Continuity (1)
Related Publication 20220259784A1 · Aug 18, 2022
Cited By (1)
US 12,595,613