# US 11,110,672 B2 · Exercise weight structure

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- Number: US 11,110,672 B2
- Document ID: US11110672B2
- Status: Granted
- Kind: B2
- Application number: 16/712,170
- Filed: 2019-12-12
- Published: 2020-04-16
- Granted: 2021-09-07
- Earliest claimed: 2018-07-03
- Assignees: Escape Enviro Limited
- Applicants: Escape Enviro Limited
- Inventors: Gary Lister; Richard Januszek
- Web page: https://patentgrep.com/patent/US11110672B2

## CPC

- B29C 70/68: by incorporating or moulding on preformed parts, e.g. inserts or layers {, e.g. foam blocks (mould constructions therefor B29C33/12; joining preformed parts by moulding B29C65/70)}
- A63B 21/0601: {Special physical structures of used masses}
- A63B 21/072: Dumb-bells, bar-bells or the like {, e.g. weight discs having an integral peripheral handle}
- B29B 17/0042: {for shaping parts, e.g. multilayered parts with at least one layer containing regenerated plastic}
- A63B 2209/00: Characteristics of used materials
- Y02W 30/62: Plastics recycling; Rubber recycling
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H)
- B29B: PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT

## Abstract

A method of producing an exercise weight structure comprises mixing a particulate material with a binder material and molding the resulting mixture to an appropriate shape. An outer skin for the exercise weight structure is firstly formed of a resilient material, and forms a mold into which an inner weight section or body is molded or cast. The inner weight section and the outer skin are both formed of recycled material and include a common binder material.

## Claims

### Claim 1

A exercise weight structure comprising:
a core formed from a particulate metallic material that is mixed with a binder material and molded to the shape of the exercise weight structure;
a molded outer skin that is at least partially formed from the same material as the binder material, and
wherein the molded outer skin is bonded to the binder material of the inner core, and
wherein the exercise weight structure having an annular body comprising opposing faces and a cutout extending between the opposing faces and the cutout receives a collar to permit mounting of the exercise weight structure on a shaft or bar.

### Claim 2 (depends on 1)

The exercise structure of claim 1, wherein the particulate metallic material comprises reclaimed or waste material.

### Claim 3 (depends on 1)

The exercise structure of claim 1, wherein the binder material comprises a resin material.

### Claim 4 (depends on 3)

The exercise structure of claim 3, wherein the resin binder comprises a polyurethane material.

### Claim 5 (depends on 1)

The exercise structure of claim 1, wherein the molded outer skin is resilient.

### Claim 6 (depends on 1)

The exercise structure of claim 1, wherein the molded outer skin further comprises a rubber or polyurethane material that is mixed with the binder material.

### Claim 7 (depends on 6)

The exercise structure of claim 6, wherein the rubber or polyurethane material comprises a waste material in particulate form.

### Claim 8 (depends on 1)

The exercise weight structure of claim 1, wherein the collar is formed from a material that is different to the molded outer skin.

### Claim 9 (depends on 1)

The exercise weight structure of claim 1, wherein the collar is bonded to the annular body of the exercise weight structure.