IP Library Granted Patent US 7,828,305
Granted Patent B2
US 7,828,305 · App. 11/745,050 · Granted Nov 9, 2010

Rolling walker and handle grips thereof

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Quick Facts
Patent No.
US 7,828,305
App. No.
11/745,050
Granted
Nov 9, 2010
Kind
B2
Abstract

A handle grip for ambulatory aid appliances has a soft top portion and a rigid body portion. The handle grips may be attached to a wheeled ambulatory aid appliance such as a rolling walker, wheelchair, stroller and the like in a selected position to provide a comfortable and secure hand grip to a user of the ambulatory aid.

Claims (25)

1. A rolling walker for assisting an individual with mobility comprising:

a frame assembly having a pair of handles, each including a handle grip extending rearwardly from the frame assembly;

means attached to the frame assembly for rolling movement of the rolling walker along a support surface; and

wherein each of the handle grips comprises:

a substantially rigid body portion defining a low surface of the handle grip and a hole to receive one of the handles, the rigid body portion forming a rigid bottom side of the handle grip, an entire axial length of the rigid bottom side forming the low surface for gripping;

a top portion attached to the body portion, the top portion being of soft and resilient material with respect to the body portion, a middle area of the soft and resilient material being thicker than an area around the middle area to form in a first view of the handle grip, a projection extending from the top portion in the middle area, the top portion forming a soft and resilient top side opposite to the rigid bottom side of the handle grip; and

the handle grip in a second view substantially normal to the first view of the handle grip, gradually increasing in width along a substantial length of the handle grip from a front section of the handle grip toward a rear end of the handle grip; and

wherein the projection is symmetric only about a central axis of the handle grip in a transverse cross-sectional view thereof, the central axis extending in a direction at an angle of 25-55 degrees with respect to a vertical direction such that the projections of the respective handle grips extend away from each other defining a mirror image of the one handle grip relative to the other.

2. The rolling walker as defined in claim 1 wherein the angle of the central axis is 45 degrees.

3. The rolling walker as defined in claim 1 wherein the handle grip comprises a shoulder at the rear end extending in the direction of the central axis outwardly from the top portion of the handle grip and a heel at the rear end extending in the direction of the central axis outwardly from the body portion of the handle grip.

4. The rolling walker as defined in claim 1 wherein the body portion comprises a transverse cross-section asymmetric about the central axis.

5. The rolling walker as defined in claim 1 further comprising a seat attached to the frame assembly.

6. The rolling walker as defined in claim 5 further comprising a detachable backrest adapted to be selectively attached to the frame assembly in one of a front position and a rear position.

7. The rolling walker as defined in claim 1 wherein each of the handles comprises means for positioning the handle grip to be attached thereto, in a selected angular orientation.

8. A handle grip for an ambulatory aid, the ambulatory aid including a frame assembly, a plurality of wheels rotatably mounted to the frame assembly for moveably supporting the frame assembly on a support surface, a pair of handles each having the handle grip, extending rearwardly from the frame assembly to be gripped by a person walking behind the frame assembly, the handle grip comprising:

a substantially rigid body portion defining a low surface of the handle grip and a hole to receive one of the handles, the rigid body portion forming a rigid bottom side of the handle grip, an entire axial length of the rigid bottom side forming the low surface for gripping;

a top portion attached to the body portion, the top portion being of soft and resilient material with respect to the body portion, a middle area of the soft and resilient material being thicker than an area around the middle area to form in a first view of the handle grip, a projection extending from the top portion in the middle area, the top portion forming a soft and resilient top side opposite to the rigid bottom side of the handle grip; and

wherein the handle grip in a second view substantially normal to the first view of the handle grip, gradually increases in width along a substantial length of the handle grip from a front section of the handle grip toward a rear end of the handle grip.

9. The handle grip as defined in claim 8 wherein the handle grip comprises an upstanding shoulder at the rear end extending upwardly from the top portion of the handle grip and a heel at the rear end extending downwardly from the body portion of the handle grip.

10. The handle grip as defined in claim 9 comprising a transverse cross-section symmetric only about a central axis.

11. The handle grip as defined in claim 10 comprising a positioning device to determine an angular orientation of the handle grip when attached to the handle of the ambulatory aid, in which angular orientation the central axis extends in a direction at an angle of 25-55 degrees with respect to a vertical direction.

12. The handle grip as defined in claim 8 wherein the top portion comprises a surface having more frictional resistance than a surface of the body portion.

13. The handle grip as defined in claim 8 wherein the ambulatory aid is a rolling walker.

14. The handle grip as defined in claim 8 wherein the ambulatory aid is a wheel chair.

15. The handle grip as defined in claim 8 wherein the ambulatory aid is a stroller.

Assignments (9)
SECURITY INTEREST Recorded Nov 12, 2025
From: DRIVE MEDICAL CANADA INC.
To: FORTRESS CREDIT CORP., AS COLLATERAL AGENT
Reel/Frame 072884/0281 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (052111/0106) Recorded Nov 9, 2025
From: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
To: DRIVE MEDICAL CANADA INC.
Reel/Frame 073512/0853 →
SECURITY INTEREST Recorded Nov 3, 2025
From: DEVILBISS HEALTHCARE LLC; HURRYWORKS LLC; INOVO, INC.; MEDICAL DEPOT, INC.; DRIVE MEDICAL CANADA INC.
To: FORTRESS CREDIT CORP., AS COLLATERAL AGENT
Reel/Frame 073529/0050 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS Recorded Jul 27, 2021
From: DELAWARE TRUST COMPANY
To: DRIVE MEDICAL CANADA, INC.
Reel/Frame 056990/0290 →
SECURITY INTEREST Recorded Mar 24, 2020
From: DRIVE MEDICAL CANADA INC.
To: DELAWARE TRUST COMPANY, AS COLLATERAL AGENT
Reel/Frame 052214/0059 →
SECURITY INTEREST Recorded Mar 13, 2020
From: DRIVE MEDICAL CANADA INC.
To: JPMORGAN CHASE BANK, N.A,, AS COLLATERAL AGENT
Reel/Frame 052111/0106 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 14, 2017
From: AMG MEDICAL INC.; A.M.G. MEDICAL INC.; AMG MEDICAL CORP.
To: DRIVE MEDICAL CANADA INC.
Reel/Frame 043586/0927 →
AFFIDAVIT CONFIRMING THE CORRECT NAME OF THE ASSIGNEE Recorded Nov 23, 2016
From: AMG MEDICAL INC.
To: A.M.G. MEDICAL INC.
Reel/Frame 040680/0635 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 7, 2007
From: MEYERS, DANIEL SETH; BOAR, CRISTIAN
To: AMG MEDICAL INC.
Reel/Frame 019256/0608 →