# US 10,765,906 B2 · Weight collar

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- Number: US 10,765,906 B2
- Document ID: US10765906B2
- Status: Granted
- Kind: B2
- Application number: 15/877,641
- Filed: 2018-01-23
- Published: 2018-11-29
- Granted: 2020-09-08
- Earliest claimed: 2017-01-24
- Applicants: Frederick A. Nieberding, III
- Inventors: Frederick A. Nieberding, III
- Web page: https://patentgrep.com/patent/US10765906B2

## CPC

- A63B 21/0728: {with means for fixing weights on bars, i.e. fixing olympic discs or bumper plates on bar-bells or dumb-bells}
- A63B 21/075: with variable weights {, e.g. weight systems with weight selecting means for bar-bells or dumb-bells}
- A63B 21/026: {Bars; Tubes; Leaf springs (A63B21/023 takes precedence)}
- A63B 21/0602: {Fluids, e.g. water}
- A63B 21/0603: {Fluid-like particles, e.g. gun shot or sand}
- A63B 21/0724: {Bar-bells; Hand bars}
- A63B 2209/00: Characteristics of used materials
- A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H)

## Abstract

A weight collar for retaining a weight on a bar, comprising a bar engaging section having an opening for receiving the bar therethrough and a weight engaging section having proximal and distal ends, the weight engaging section extending from the bar engaging section so as to extend at least partially toward the weight when the bar engaging section receives the bar through the opening, the bar engaging section being configured to engage the bar with a gripping force as the weight exerts a rotational force on the distal end of the weight engaging section so as to prevent the weight from sliding off the bar, the distal end of the weight engaging section being orthogonally spaced at least 1 inch from a central axis of the opening, a center of gravity of the collar being orthogonally spaced at least 0.1 inches from the central axis toward the distal end.

## Claims

### Claim 1

A collar for retaining a weight on a bar, the collar comprising:
a bar engaging section having an opening for receiving the bar therethrough and an annular surface encircling the opening, the annular surface being concentric about a central axis of the opening;
a weight engaging section having opposing proximal and distal ends, the weight engaging section extending from the bar engaging section near the proximal end so as to extend at least partially toward the weight when the bar engaging section receives the bar through the opening, the bar engaging section being configured to engage the bar with a gripping force as the weight exerts a rotational force on the distal end of the weight engaging section so as to prevent the weight from sliding off the bar, the distal end of the weight engaging section being orthogonally spaced from the central axis of the opening an offset distance of at least 1 inch, a center of gravity of the collar being orthogonally spaced from the central axis toward the distal end an offset distance of at least 0.1 inches; and
a leaf spring connected to the weight engaging section and extending in a cantilever arc toward the opening of the bar engaging section such that the leaf spring can be depressed via the bar as the collar is being pushed onto the bar, the leaf spring being configured to exert a biasing force against the bar such that the bar engaging section imparts a nominal gripping force on the bar when the weight is not engaging the weight engaging section for preventing the collar from sliding freely relative to the bar.

### Claim 2 (depends on 1)

The collar of claim 1, wherein a ratio of the offset distance of the distal end to the offset distance of the center of gravity is greater than approximately 1:1.

### Claim 3 (depends on 1)

The collar of claim 1, wherein a ratio of the offset distance of the distal end to the offset distance of the center of gravity is between approximately 1.1:1 and approximately 10:1.

### Claim 4 (depends on 1)

The collar of claim 1, wherein the offset distance of the distal end is between approximately 1.5 inches and approximately 5 inches and the offset distance of the center of gravity is greater than approximately 0.5 inches.

### Claim 5 (depends on 1)

The collar of claim 1, wherein the opening has a diameter of approximately 2 inches and the offset distance of the center of gravity is greater than approximately 1 inch.

### Claim 6 (depends on 1)

The collar of claim 1, wherein the weight engaging section is angled from the bar engaging section, the proximal end of the weight engaging section being spaced from an outer edge of the opening by at least 0.8 inches.

### Claim 7 (depends on 1)

The collar of claim 1, wherein the weight engaging section is angled from the bar engaging section between approximately 90 degrees and approximately 135 degrees.

### Claim 8 (depends on 1)

The collar of claim 1, wherein the bar engaging section and the weight engaging section are formed of a monolithic piece of material.

### Claim 9 (depends on 8)

The collar of claim 8, wherein the weight engaging section is angled from the bar engaging section via a bend in the material.

### Claim 10 (depends on 1)

The collar of claim 1, wherein the spring must be at least partially depressed for the collar to be positioned on the bar.

### Claim 11 (depends on 1)

The collar of claim 1, wherein the weight engaging section tapers in width from the proximal end to the distal end.