# US 7,638,079 B2 · Thin wall glove with thicker cuff

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 7,638,079 B2
- Document ID: US7638079B2
- Status: Granted
- Kind: B2
- Application number: 11/287,372
- Filed: 2005-11-28
- Published: 2007-05-31
- Granted: 2009-12-29
- Earliest claimed: 2005-11-28
- Assignees: Microflex Corporation
- Inventors: Shuo Peng; Jian Tao
- Web page: https://patentgrep.com/patent/US7638079B2

## CPC

- B29C 41/14: Dipping a core {(B29C41/10 takes precedence)}
- Y10T 428/1386: Natural or synthetic rubber or rubber-like compound containing
- 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)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

Extra coagulant is added to the cuff portion of the former by a spray nozzle located between the coagulant and latex dipping tanks. A former is placed into a coagulant. After removal from the coagulant, additional coagulant to the cuff portion of the former by any conventional means, such as a spray nozzle. The higher concentration of coagulant at the cuff portion results in a thicker latex thickness at the cuff portion and counteracts the reduced dwell time of the cuff in the latex dipping tank as compared to the fingertip portion of the former. The thickness of the cuff portion can be controlled by altering the concentration of the coagulant applied by the spray nozzle.

## Claims

### Claim 1

A method of forming articles, comprising
applying a first coat of coagulant over a full length of a former between a first lower end and an upper end,
applying a second coat of coagulant proximate said upper end said second coat extending less than said full length of said former, and
applying rubber material to said former.

### Claim 2 (depends on 1)

The method of claim 1, wherein the second coat is applied to the upper end by spraying.

### Claim 3 (depends on 1)

The method of claim 1, wherein said rubber material is nitrile rubber.

### Claim 4 (depends on 1)

The method of claim 1, wherein said rubber material is latex rubber.

### Claim 5 (depends on 1)

The method of claim 1, wherein said former forms gloves and the upper end is a cuff portion.

### Claim 6 (depends on 1)

The method of claim 1, wherein said first coat is applied by dipping.

### Claim 7

A method of forming articles, comprising
applying a first coat of coagulant to a former having a lower first end and an upper end,
applying a second coat of coagulant proximate said upper end said second coat extending less than said full length of said former, and
applying rubber material to said former, wherein the method further comprises applying said first coat to the full length of the former.

### Claim 8 (depends on 7)

The method of claim 7, wherein said first coat is applied by dipping.

### Claim 9 (depends on 7)

The method of claim 7, wherein said first coat is applied by spraying.

### Claim 10 (depends on 7)

The method of claim 7, wherein the articles are gloves and the upper end is a cuff portion.