US4505706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable adult diaper
Assignee: Colgate Palmolive Co
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Filing: 1983-01-14
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Granted: 1985-03-19
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Expires: 2003-01-14
Abstract
Abstract A disposable adult diaper comprising a waterproof backing sheet, an absorbent pad assembly, and a non-woven hydrophobic top sheet. The top sheet overlies the absorbent pad assembly and is folded about the backing sheet with end margins overlapping. On the overlapped portion of the top sheet there is provided pressure-sensitive adhesive for removably attaching the diaper to an undergarment of the wearer. The diaper is folded into a box-pleated configuration for better fluid tightness and fluid capacity. The absorbent pad assembly may be made with or without top or bottom wadding sheets and the most preferable embodiment utilizes a bottom wadding sheet integrated to the wood fluff of the absorbent pad by a water spray.
Inventors
- 👤 Emile Erpicum
- 👤 Louis Dehan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:54
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/47; A61F13/475; A61F13/4751; A61F13/4755; A61F13/49; A61F13/49001; A61F13/494; A61F13/49406; A61F13/49413; A61F13/51; A61F5/00; A61F5/44; A61F5/4401; A61F13/53; A61F13/534; A61F13/539; A61F13/56; A61F13/58; A61F2013/530131; A61F2013/53445; A61F2013/53908; A61F2013/583
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
136 words
A disposable adult diaper arranged in a box-pleated configuration, comprising a top sheet, a fluid impervious backing sheet and an absorbent pad assembly sandwiched between said top sheet and said backing sheet, said absorbent pad assembly including a core of wood fluff and a bottom wadding sheet integrally bonded to said wood fluff, said core being bonded to said backing sheet, said top sheet being of a non-woven hydrophobic material and being of much greater width than said backing sheet so that end portions of said top sheet underlie said backing sheet and overlap each other, means bonding said end portions to said backing sheet and to each other at said overlap, pressure-sensitive adhesive strips on said overlap, and peelable strip means removably overlying said strips whereby said strips are centrally exposed by said box-pleated configuration.
Claim 2
Dependent Claim
136 words
A disposable adult diaper arranged in a box-pleated configuration, comprising a top sheet, a fluid impervious backing sheet and an absorbent pad assembly sandwiched between said top sheet and said backing sheet, said absorbent pad assembly including a core of wood fluff and a bottom wadding sheet integrally bonded to said wood fluff, said core being bonded to said backing sheet, said top sheet being of a non-woven hydrophobic material and being of much greater width than said backing sheet so that end portions of said top sheet underlie said backing sheet and overlap each other, means bonding said end portions to said backing sheet and to each other at said overlap, pressure-sensitive adhesive strips on said overlap, and peelable strip means removably overlying said strips whereby said strips are centrally exposed by said box-pleated configuration.
Claim 3
Dependent Claim
24 words
A disposable adult diaper according to claim 1, wherein said backing sheet has side portions folded over said absorbent pad assembly and bonded thereto.
Claim 4
Dependent Claim
18 words
A disposable adult diaper according to claim 1, wherein said absorbent pad assembly includes an upper wadding sheet.
Claim 5
Dependent Claim
25 words
A disposable adult diaper according to claim 1, wherein said absorbent pad assembly includes a sheet wrapped thereabout forming upper and said lower wadding sheets.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-03-18 | 1988-09-17 | 1989-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-18 | 1992-09-17 | 1993-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-18 | 1996-09-17 | 1997-03-19 | $7700.00 | Window Closed / Lapsed |