IP Library Granted Patent US 11,166,867
Granted Patent B2
US 11,166,867 · App. 16/916,393 · Granted Nov 9, 2021

Collapsible rolling walker

Inventors: Michael Paterson (Chicago, IL); Tong Jin Kim (West Lafayette, IN); Kegan McDaniel (Chicago, IL); Luke Westra (Chicago, IL)
Assignee: Medline Industries, Inc.
A61H3/04A61H2003/002A61H2003/046A61H2201/0157A61H2201/0161A61H2201/1633
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Quick Facts
Patent No.
US 11,166,867
App. No.
16/916,393
Granted
Nov 9, 2021
Kind
B2
Abstract

A collapsible rolling walker that readily collapses for storage and/or transportation and that readily deploys for use.

Claims (18)

1. A method for deploying a collapsed rolling walker, the method comprising:

providing a collapsed rolling walker having two front legs, two back legs, and two handle arms disposed in parallel alignment with one another to within five degrees and further having a pivoting seat having sides that are at least partially nested between and that are similarly disposed in parallel alignment with at least one the two front legs, the two back legs, and the two handle arms, the seat having a hole disposed therethrough that comprises a handle by which the collapsed rolling walker can be carried and wherein the handle includes a latch trigger for a latch that maintains the collapsed rolling walker in a collapsed configuration;

asserting the latch trigger to thereby release the latch;

manipulating at least some of the front legs, back legs, handle arms, and seat to encourage these components to pivot around to their deployed positions.

2. The method of claim 1 wherein each of the two front legs and the two back legs bears a ground-contacting wheel.

3. The method of claim 1 wherein each of the two front legs terminates in a lower end with a wheel-bearing end piece that aims back rearwardly of the rolling walker to thereby achieve a more compact footprint in the collapsed configuration.

4. The method of claim 1 wherein at least some of the two front legs, two back legs, and two handle arms have adjustable lengths.

5. The method of claim 4 wherein each of the two front legs, two back legs, and two handle arms have adjustable lengths.

6. The method of claim 5 further comprising:

adjusting a length of at least one of the two front legs, two back legs, and two handle arms after the components are pivoted around to their deployed positions to thereby accommodate a particular user of the rolling walker.

7. The method of claim 1 wherein the components are coupled to one another without any internal biasing towards a deployed configuration.

8. The method of claim 1 wherein manipulating at least some of the front legs, back legs, and handle arms to encourage these components to pivot around to their deployed positions comprises, at least in part, pivoting each of the front legs, back legs, and handle arms about a shared common axis.

9. The method of claim 1 wherein each of the two handle arms includes a rotatable handle having a non-deployed position and a deployed position.

10. The method of claim 9 further comprising:

manipulating the rotatable handles from the non-deployed position to the deployed position.

11. The method of claim 10 wherein manipulating the rotatable handles includes asserting a handle lock for each of the rotatable handles.

12. The method of claim 1 wherein the two front legs, two back legs, and two handle arms are disposed in parallel alignment with one another to within two degrees.

13. The method of claim 1 wherein the two front legs, two back legs, and two handle arms are disposed in parallel alignment with one another to within one degree.

Assignments (6)
PATENT SECURITY AGREEMENT Recorded May 28, 2026
From: MEDLINE INDUSTRIES, LP
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT
Reel/Frame 075643/0462 →
PATENT SECURITY AGREEMENT Recorded Jun 20, 2025
From: MEDLINE INDUSTRIES, LP
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT
Reel/Frame 071672/0100 →
SECURITY INTEREST Recorded Oct 21, 2021
From: MEDLINE INDUSTRIES, LP
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 057927/0091 →
SECURITY INTEREST Recorded Oct 21, 2021
From: MEDLINE INDUSTRIES, LP
To: BANK OF AMERICA, N.A.
Reel/Frame 058040/0001 →
CHANGE OF NAME Recorded Oct 13, 2021
From: MEDLINE INDUSTRIES, INC.
To: MEDLINE INDUSTRIES, LP
Reel/Frame 057970/0098 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 30, 2020
From: PATERSON, MICHAEL; KIM, TONG JIN; MCDANIEL, KEGAN; WESTRA, LUKE
To: MEDLINE INDUSTRIES, INC.
Reel/Frame 053085/0853 →