Patent US4990147A successfully refreshed from Google Patents.
US4990147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absorbent article with elastic liner for waste material isolation
Assignee: Procter and Gamble Co
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Filing: 1988-09-02
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Granted: 1991-02-05
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Expires: 2008-09-02
Abstract
Abstract A disposable absorbent article, such as a diaper, having a liquid impervious backsheet, a urine pervious liner, and absorbent core intermediate the backsheet and liner is disclosed. The liner has a passageway to allow communication of solid waste materials to the core, thereby isolating such waste from the skin of the wearer. The liner, is at least partially composed of elastic panels. The elastic panels register the passageway with the anal opening to minimize the size of the passageway and prevent unnecessary exposure of the skin to the solid waste materials.
Inventors
- 👤 M. Elaine Freeland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:46
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/49; A61F13/495; A61F13/51; A61F13/511; A61F13/512; A61F13/56; A61F13/58; A61F13/513; A61F2013/51322; A61F13/514; A61F13/51401; A61F2013/51409; A61F13/53; A61F2013/530007; A61F2013/530481
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
85 words
A disposable absorbent article having a longitudinal axis, said article comprising: a urine impervious backsheet; an elastic liner made of a two-dimensional elastic material and having at least one passageway through said liner and adapted to permit waste materials to pass through said liner, said liner being at least partially peripherally affixed to and foreshortened relative to said backsheet to form a void space registered with said passageway and intermediate said liner and said backsheet; and an absorbent core intermediate said liner and said backsheet.
Claim 2
Dependent Claim
85 words
A disposable absorbent article having a longitudinal axis, said article comprising: a urine impervious backsheet; an elastic liner made of a two-dimensional elastic material and having at least one passageway through said liner and adapted to permit waste materials to pass through said liner, said liner being at least partially peripherally affixed to and foreshortened relative to said backsheet to form a void space registered with said passageway and intermediate said liner and said backsheet; and an absorbent core intermediate said liner and said backsheet.
Claim 3
Dependent Claim
125 words
A disposable absorbent article having a longitudinal axis, said article comprising: a urine impervious backsheet; a liner having at least one passageway through said liner and adapted to permit waste materials to pass through said liner, said liner further having a trisection made of a first material and two panels made of a second material, said trisection being longitudinally centered intermediate said panels, one of said first and said second materials being elastic and made of a two-dimensional elastic material, the other being inelastic, said liner being at least partially peripherally affixed to and foreshortened relative to said backsheet to form a void space registered with said passageway and intermediate said liner and said backsheet; and an absorbent core intermediate said liner and said backsheet.
Claim 4
Dependent Claim
125 words
A disposable absorbent article having a longitudinal axis, said article comprising: a urine impervious backsheet; a liner having at least one passageway through said liner and adapted to permit waste materials to pass through said liner, said liner further having a trisection made of a first material and two panels made of a second material, said trisection being longitudinally centered intermediate said panels, one of said first and said second materials being elastic and made of a two-dimensional elastic material, the other being inelastic, said liner being at least partially peripherally affixed to and foreshortened relative to said backsheet to form a void space registered with said passageway and intermediate said liner and said backsheet; and an absorbent core intermediate said liner and said backsheet.
Claim 5
Dependent Claim
110 words
A disposable absorbent article having a longitudinal axis, said article comprising: a urine impervious backsheet; a liner having at least one passageway adapted to permit waste materials to pass through said liner, said liner further having a trisection made of a first material and two panels made of a second material, said trisection being transversely centered intermediate said panels, one of said first and said second materials being elastic, the other being inelastic, said liner being at least partially peripherally affixed to said backsheet to form a void space registered with said passageway and intermediate said liner and said backsheet; and an absorbent core intermediate said liner and said backsheet.
Claim 6
Dependent Claim
110 words
A disposable absorbent article having a longitudinal axis, said article comprising: a urine impervious backsheet; a liner having at least one passageway adapted to permit waste materials to pass through said liner, said liner further having a trisection made of a first material and two panels made of a second material, said trisection being transversely centered intermediate said panels, one of said first and said second materials being elastic, the other being inelastic, said liner being at least partially peripherally affixed to said backsheet to form a void space registered with said passageway and intermediate said liner and said backsheet; and an absorbent core intermediate said liner and said backsheet.
Claim 7
Dependent Claim
127 words
A disposable absorbent article having a longitudinal axis, said article comprising: a urine impervious backsheet; a liner having at least one passageway adapted to permit waste materials to pass through said liner, said liner having a panel disposed longitudinally offset from and to the front of said passageway and made of a first material, said liner further having a panel longitudinally offset from and to the rear of said passageway and made of a second material, one of said first and said second materials being elastic, the other being inelastic, said liner being at least partially peripherally affixed to said backsheet to form a void space registered with said passageway and intermediate said liner and said backsheet; and an absorbent core intermediate said liner and said backsheet.
Claim 8
Dependent Claim
127 words
A disposable absorbent article having a longitudinal axis, said article comprising: a urine impervious backsheet; a liner having at least one passageway adapted to permit waste materials to pass through said liner, said liner having a panel disposed longitudinally offset from and to the front of said passageway and made of a first material, said liner further having a panel longitudinally offset from and to the rear of said passageway and made of a second material, one of said first and said second materials being elastic, the other being inelastic, said liner being at least partially peripherally affixed to said backsheet to form a void space registered with said passageway and intermediate said liner and said backsheet; and an absorbent core intermediate said liner and said backsheet.
Claim 9
Dependent Claim
18 words
A disposable absorbent article according to claim 1, 2, 3 or 4 wherein said passageway is an aperture.
Claim 10
Dependent Claim
19 words
A disposable absorbent article according to claim 5 wherein said passageway has a greater longitudinal dimension than transverse dimension.
Claim 11
Dependent Claim
22 words
A disposable absorbent article according to claim 1, 2, 3 or 4 further comprising a means for transverse contraction of said liner.
Claim 12
Dependent Claim
34 words
A disposable absorbent article according to claim 7 wherein said means for transverse contraction of said liner comprises an elastic liner panel having a principal axis of elastic contraction oriented in a nonlongitudinal direction.
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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) | 1994-02-04 | 1994-08-06 | 1995-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-04 | 1998-08-06 | 1999-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-04 | 2002-08-06 | 2003-02-05 | $7700.00 | Window Closed / Lapsed |