IP Library Granted Patent US 8,607,809
Granted Patent B2
US 8,607,809 · App. 12/723,224 · Granted Dec 17, 2013

Independently adjusting, multi-legged walking cane

Inventors: James D. Jordan (Grapevine, TX); Randy G. Misenheimer (Euless, TX); Shyh Min Chen (Plano, TX)
Assignee: Ranjam, LLC
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,607,809
App. No.
12/723,224
Granted
Dec 17, 2013
Kind
B2
Abstract

The invention is a multi-legged walking cane where each leg operates independently of each other by employing compressible legs, enhancing stability thru the complete gait cycle.

Claims (16)

1. A walking cane comprising:

a shaft having an upper end and a lower end, the lower end having a plurality of legs affixed to a base, each of the legs including a tube section, an independently operating spring system including an interchangeable spring being inserted within the tube section, a plunger affixed to the independently operating spring system, and a foot affixed to the lower end of the plunger, wherein upon application of downward pressure to the independently operating spring system from the plunger to the foot, the independently operating spring system compresses and the foot of each leg maintains constant contact with the ground with the same travel distance capability maintained in each leg.

2. The walking cane of claim 1 wherein the upper end of the shaft comprises a handle element.

3. The walking cane of claim 1 wherein the base is affixed to the lower end of the shaft via fastening mechanisms.

4. The walking cane of claim 3 , wherein the fastening mechanisms are threads.

5. The walking cane of claim 3 , wherein the fastening mechanisms are screws.

6. The walking cane of claim 1 wherein the lower end of the shaft is slotted and threaded and each of the plurality of legs slides into a slot and is held in place with a locking cap that screws into the lower end.

7. The walking cane of claim 1 further comprising:

a middle leg that does not compress.

8. A walking cane comprising:

a shaft having a near end and a distal end;

an interchangeable base coupled to the distal end; and

a plurality of independently adjustable and tensioned legs affixed to the interchangeable base, wherein each of the plurality of independently adjustable and tensioned legs has an interchangeable spring with a plunger disposed within the spring and a foot attached to the plunger, wherein when pressure is applied to the spring, each of the legs moves in a vertical direction and each of the legs maintains the same up and down travel distance capability relative to the ground.

9. The walking cane of claim 8 wherein the position of the foot is adjusted.

10. The walking cane of claim 8 further comprising:

a rigid leg positioned centrally with respect to the plurality of independently adjustable and tensioned legs.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 1, 2018
From: EDISON NATION MEDICAL, LLC
To: RANJAM, LLC
Reel/Frame 045072/0977 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 18, 2016
From: RANJAM, LLC
To: EDISON NATION MEDICAL, LLC
Reel/Frame 037766/0510 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 7, 2013
From: JORDAN, JAMES D.; CHEN, SHYH MIN
To: RANJAM, LLC
Reel/Frame 029580/0582 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 7, 2013
From: MISENHEIMER, RANDY G.
To: RANJAM, LLC
Reel/Frame 029580/0718 →
Continuity (2)
Provisional Application 61215390 · May 5, 2009
Related Publication 20110220161A1 · Sep 15, 2011