IP Library Granted Patent US 12,409,057
Granted Patent B1
US 12,409,057 · App. 19/204,487 · Granted Sep 9, 2025

Knee brace spring lock and release hinge

Inventor: Michael Danforth (Ft. Pierce, FL)
A61F5/0123A61F2005/0162A61F2005/0165A61F2005/0179
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Quick Facts
Patent No.
US 12,409,057
App. No.
19/204,487
Granted
Sep 9, 2025
Kind
B1
Abstract

A knee brace spring lock and release hinge including a first section and second section. The first section has an arched support housing with a J-curved recess. The second section includes a base with base platform, an arched support surrounding a rotational wheel, a wheel pad abutting a portion of the wheel, and at least one spring extending from the base platform to the wheel pad. The second section is structured to rotate within the J-curved recess when the at least one spring is extended. The second section is structured to be locked into place when the at least one spring is compressed.

Claims (49)

1. A knee brace spring lock and release hinge comprising:

a first section comprising

an arched support housing with a J-curved recess;

a second section comprising

a base with a base platform,

an arched support surrounding a rotational wheel,

a wheel pad abutting a portion of the rotational wheel, and

at least one spring extending from the base platform to the wheel pad;

wherein the second section is configured to rotate within the J-curved recess when the at least one spring is extended; and

wherein the second section is configured to be locked into place when the at least one spring is compressed.

2. The knee brace spring lock and release hinge of claim 1 wherein the first section and the second section each include a brace support recess configured to receive a longitudinal brace support.

3. The knee brace spring lock and release hinge of claim 1 wherein the hinge is configured to rotate between a vertically locked first position and at least a 90-degree angle second position.

4. The knee brace spring lock and release hinge of claim 1 wherein the arched support includes a first leg and a second leg.

5. The knee brace spring lock and release hinge of claim 4 wherein the hinge is prevented from rotating when the second leg abuts a wall created by the J-curved recess when the at least one spring is compressed.

6. The knee brace spring lock and release hinge of claim 1 wherein a curved portion of the arched support is configured to allow the second section to rotate within the J-curved recess when the at least one spring is extended.

7. The knee brace spring lock and release hinge of claim 1 wherein the wheel rotates along an axle; and wherein the axle is a fastener that connects the first section to the second section.

8. A knee brace spring lock and release hinge comprising:

a first section comprising

an arched support housing with a recess formed by two generally perpendicular walls connected by a curved wall;

a second section comprising a base,

an arched support surrounding a rotational wheel,

a wheel pad connected to a portion of the rotational wheel, and

a plurality of springs extending from the base to the wheel pad;

wherein the second section is configured to rotate within the recess when the plurality of springs are extended;

wherein the second section is configured to be locked in place when the plurality of springs are compressed.

9. The knee brace spring lock and release hinge of claim 8 wherein the arched support is configured to reduce rotational space within the recess when the plurality of springs are compressed thereby preventing the second section from rotating.

10. The knee brace spring lock and release hinge of claim 8 wherein the hinge is configured to be attached to a knee brace; and wherein the brace hinge is configured to lock when the user steps down with their weight on a leg with the brace and is configured to rotate when a user releases their body weight from that leg.

11. The knee brace spring lock and release hinge of claim 8 wherein the wheel pad comprises two spring pad holes configured to receive two springs of the plurality of springs therein.

12. The knee brace spring lock and release hinge of claim 8 wherein the base includes a base platform with two spring base holes configured to receive two springs of the plurality of springs therein.

13. The knee brace spring lock and release hinge of claim 8 wherein the base is angled on one side and straight on another side.

14. The knee brace spring lock and release hinge of claim 8 wherein the wheel pad is curved on a first side and flat on an opposing side.

15. The knee brace spring lock and release hinge of claim 8 wherein the plurality of springs push the wheel pad distally from the base when extended and abut the wheel pad to the base when compressed.

16. The knee brace spring lock and release hinge of claim 8 wherein an arched support curve atop the arched support is flush with the rotational wheel when the plurality of springs are extended.

17. The knee brace spring lock and release hinge of claim 8 wherein an arched support curve atop the arched support is distal to the rotational wheel creating space therebetween when the plurality of springs are compressed.

18. The knee brace spring lock and release hinge of claim 8 wherein a portion of an arched support curve atop the arched support is pushed into the curved wall and a leg of the arched support aligns with one of the perpendicular walls when the plurality of springs are compressed creating a second section wedge within the recess preventing rotation of the second section.

19. A knee brace spring lock and release hinge comprising:

a first section comprising

an arched support housing with a J-curved recess;

a second section comprising

a base with a base platform,

an arched support surrounding a rotational wheel,

a wheel pad connected to a portion of the rotational wheel, and

at least one spring extending from the base platform to the wheel pad;

an axle permeated through a medial wheel sheath;

wherein the axle is a threaded fastener configured to secure the first section to the second section;

wherein the second section is configured to rotate within the J-curved recess when the at least one spring is extended;

wherein the second section is configured to be locked in place when the at least one spring is compressed; wherein the hinge is configured to be attached to a knee brace; and

wherein the brace hinge is configured to lock when a user steps down with their body weight on a leg with the brace and is configured to rotate when the user releases their body weight from that leg.

20. The knee brace spring lock and release hinge of claim 17 wherein the first section and the second section each include a brace support recess configured to receive a longitudinal brace support.

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