US5114418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Highly absorbent, leak-proof and breathable diaper
Assignee: Individual
•
Filing: 1990-12-10
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Granted: 1992-05-19
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Expires: 2010-12-10
Abstract
Abstract The highly absorbent, leak-proof and breathable diaper of the invention is a 3-layer fabric incorporating a first layer of terry cloth, a second layer of polyurethane film, and a third layer of woven, or knit, fabric. Both the first and second layers, and the second and third layers, are laminated together with a urethane adhesive. The first layer then serves as a fluid absorbing portion for the diaper, while the second and third layers form a leakage-preventing portion for it.
Inventors
- 👤 Harry Levy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:13
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/49; A61F13/49003
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
140 words
A breathable, durable and reusable diaper, comprising: a first layer of terry cloth for providing a high absorbency characteristic to urine, fluids, moisture and body wastes; a second layer of polyurethane film for providing a high leakage preventing characteristic to urine, fluids, moisture and body wastes absorbed by said first layer; a first urethane adhesive joined between said first and second layers for laminating together said first and second layers; a third layer of one of woven or knit fabric, also for providing a high leakage preventing characteristic to urine, fluids, moisture and body wastes absorbed by said first layer; a second urethane adhesive joined between said second and third layers for laminating together said second and third layers; and with said first layer, when said diaper is worn, structured to be in contact with the body of the wearer.
Claim 2
Dependent Claim
140 words
A breathable, durable and reusable diaper, comprising: a first layer of terry cloth for providing a high absorbency characteristic to urine, fluids, moisture and body wastes; a second layer of polyurethane film for providing a high leakage preventing characteristic to urine, fluids, moisture and body wastes absorbed by said first layer; a first urethane adhesive joined between said first and second layers for laminating together said first and second layers; a third layer of one of woven or knit fabric, also for providing a high leakage preventing characteristic to urine, fluids, moisture and body wastes absorbed by said first layer; a second urethane adhesive joined between said second and third layers for laminating together said second and third layers; and with said first layer, when said diaper is worn, structured to be in contact with the body of the wearer.
Claim 3
Dependent Claim
18 words
The diaper of claim 1 wherein said first and second urethane adhesives incorporate a non-flammable solvent-based urethane adhesive.
Claim 4
Dependent Claim
22 words
The diaper of claim 1 wherein said terry cloth is composed of a polyester/cotton blend of weight substantially 2.0 oz/yd 2 .
Claim 5
Dependent Claim
39 words
The diaper of claim 1 wherein said first and second urethane adhesives include adhesive mixtures composed of the formulation by weight of: polyurethane adhesive of viscosity 5,000 cps±2,000 cps --16.67%; and polyurethane adhesive of viscosity 27,000 cps±2,500 cps --83.33%.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-05-19 | 1995-11-18 | 1996-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-19 | 1999-11-18 | 2000-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-19 | 2003-11-18 | 2004-05-19 | $7700.00 | Window Closed / Lapsed |