Agitator with debrider and hair removal

Patent metadata

Field	Value
Publication number	US-12376720-B2
Application number	US-202418435600-A
Country	US
Kind code	B2
Filing date	Feb 7, 2024
Priority date	Mar 10, 2017
Publication date	Aug 5, 2025
Grant date	Aug 5, 2025

Abstract

A surface cleaning apparatus including a body defining an agitation chamber, an agitator partially disposed within the agitation chamber and configured to rotate about a pivot axis, and a debrider at least partially disposed within the agitation chamber. The agitator includes an elongated body having a first and a second end, a sidewall extending radially outward from the elongated body extending between the first and the second ends, and a plurality of bristles extending radially outward from the elongated body. The plurality of bristles are arranged in at least one row adjacent to the sidewall. The debrider includes a plurality of teeth configured to contact a portion of the sidewall as the agitator rotates about the pivot axis.

First claim

What is claimed is:

1. An agitator assembly comprising:
an agitator configured to rotate about a pivot axis, the agitator comprising:
an elongated body having a first and a second end; and
a flap extending from the first end towards the second end, having a flap height extending outward from the elongated body and a flap width perpendicular to the pivot axis; and

a first end cap disposed at the first end of the elongated body, the first end cap including a recess having first and second sidewalls defining an opening therebetween, with a portion of the flap positioned within the recess, the recess having a recess width perpendicular to the pivot axis, the recess width being smaller than the diameter of the elongated body and greater than the flap width along the entire radial height of the recess, such that at least one of the first and second sidewalls of the recess is spaced from the flap.

2. The agitator assembly of claim 1 , wherein the flap abuts against the first end cap.

3. The agitator assembly of claim 1 , wherein the flap extends into and abuts against a portion of the first end cap defining the recess.

4. The agitator assembly of claim 3 , wherein the recess creates an overlap between a first end of the first end cap and the first end cap.

5. The agitator assembly of claim 1 , wherein the agitator further comprises a plurality of bristles extending outward from the elongated body.

6. The agitator assembly of claim 5 , wherein the plurality of bristles are arranged in at least one row adjacent to the flap.

7. The agitator assembly of claim 5 , wherein the plurality of bristles are disposed in front of the flap as the agitator rotates in a first direction about the pivot axis such that the plurality of bristles lead the flap.

8. The agitator assembly of claim 5 , wherein the plurality of bristles are arranged substantially parallel to the flap.

9. The agitator assembly of claim 5 , wherein the plurality of bristles are arranged immediately adjacent to the flap.

10. The agitator assembly of claim 1 , further comprising a second end cap disposed at the second end of the elongated body.

11. The agitator assembly of claim 10 , wherein the second end cap including a second recess having third and fourth defining a second opening configured to receive another portion of the flap, the second recess having a second recess width perpendicular to the pivot axis, the second recess width being greater than the flap width, wherein at least one of the third and fourth sidewalls of the second recess is spaced from the flap.

12. The agitator assembly of claim 1 , wherein the first end cap is fixed relative to the agitator.

13. The agitator assembly of claim 5 , wherein at least a portion of the plurality of bristles have a height that is longer than a height of the flap.

14. The agitator assembly of claim 5 , wherein at least a portion of the plurality of bristles have a height that is 2-3 mm longer than a height of the flap.

15. The agitator assembly of claim 5 , wherein a height of the flap is 60 to 100% of a height of at least a portion of the plurality of bristles.

16. The agitator assembly of claim 5 , wherein the plurality of bristles have a height that extends at least 2 mm beyond a distal-most end of the flap.

17. The agitator assembly of claim 5 , wherein the flap has a height of at least 2 mm and is 50% or less of a height of the plurality of bristles.

18. The agitator assembly of claim 1 , wherein the flap includes a flexible and/or elastomeric material.

19. The agitator assembly of claim 18 , wherein the flap includes rubber or silicone.

20. The agitator assembly of claim 1 , wherein the flap includes combination of a flexible and/or elastomeric material and fabric.

21. The agitator assembly of claim 20 , wherein the fabric includes a polyester fabric.

22. The agitator assembly of claim 20 , wherein the flap includes a combination of a polyurethane and a fabric.

23. The agitator assembly of claim 22 , wherein the fabric includes a polyester fabric.

24. The agitator assembly of claim 5 , wherein the plurality of bristles include a plurality of tufts of bristles.

25. The agitator assembly of claim 5 , wherein the plurality of bristles include a row of bristles.

26. The agitator assembly of claim 5 , wherein the plurality of bristles include a substantially continuous row of bristles.

27. An agitator assembly comprising:
an agitator configured to rotate about a pivot axis, the agitator comprising:
an elongated body having a first and a second end; and
a flap extending from the first end towards the second end, having a flap height extending outward from the elongated body and a flap width perpendicular to the pivot axis;

a first end cap disposed at the first end of the elongated body, the first end cap including a recess having first and second sidewalls defining an opening with a portion of the flap positioned therein, the recess having a recess width perpendicular to the pivot axis, the recess width being greater than the flap width along the entire radial height of the recess, such that at least one of the first and second sidewalls of the recess is spaced from the flap, and
a second end cap disposed at the second end of the elongated body.

28. The agitator assembly of claim 27 , wherein the agitator further comprises a plurality of bristles extending outward from the elongated body.

29. The agitator assembly of claim 28 , wherein at least a portion of the plurality of bristles have a height that is longer than a height of the flap.

30. The agitator assembly of claim 27 , wherein the flap includes a flexible and/or elastomeric material.

31. The agitator assembly of claim 30 , wherein the flap includes rubber or silicone.

32. The agitator assembly of claim 27 , wherein the flap includes combination of a flexible and/or elastomeric material and fabric.

33. The agitator assembly of claim 32 , wherein the fabric includes a polyester fabric.

34. The agitator assembly of claim 32 , wherein the flap includes a combination of a polyurethane and a fabric.

35. The agitator assembly of claim 34 , wherein the fabric includes a polyester fabric.

Assignees

• Sharkninja Operating Llc

Inventors

• Der Marderosian Daniel R
• Freese John
• Howes Gordon
• Gao Wenxiu
• Clare David S
• Herrmann Nathan
• Croggon Hugh Jamie
• Sardar Nicholas
• Smith Tyler
• Liu Ian
• Wang Jiancheng

Classifications

• A46B17/06

  Devices for cleaning brushes after use · CPC title

• A46B13/001

  Cylindrical or annular brush bodies · CPC title

• A47L11/4041

  Roll shaped surface treating tools · CPC title

• A47L11/4094

  Accessories to be used in combination with conventional vacuum-cleaning devices · CPC title

• A47L2201/00

  Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation · CPC title