US4681579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absorbent article having reservoirs
Assignee: Procter and Gamble Co
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Filing: 1985-10-11
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Granted: 1987-07-21
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Expires: 2005-10-11
Abstract
Abstract A disposable absorbent article such as a diaper with a liquid pervious topsheet, a liquid impervious backsheet, an absorbent core disposed between the topsheet and the backsheet, flexible side flaps extending outwardly from and along each side edge of the absorbent core in at least the crotch region of the diaper, elastic members secured to the side flaps, and a reservoir. The reservoir collects and holds body exudates, especially loose fecal material, until the diaper is removed. Leakage prevention is enhanced because body exudates would have to flow not only above and over the reservoir but also beyond the elasticized side flaps; leakage being additionally prevented by the elasticized side flaps because they form an additional liquid impervious barrier about the body of the wearer.
Inventors
- 👤 John W. Toussant
- 👤 Ted L. Blaney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:17
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/49; A61F13/494; A61F13/49406; A61F13/49413; A61F13/49007; A61F13/49009; A61F13/49017
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
179 words
A disposable absorbent article having a front waist region, a crotch region and a back waist region, said absorbent article comprising: a liquid pervious topsheet; a liquid impervious backsheet associated with said topsheet; an absorbent core having side edges, said absorbent core disposed between said topsheet and said backsheet; a flexible side flap extending outwardly from and along each side edge of said absorbent core in at least the crotch region; an elastic member secured to each of said side flaps; a securing means for securing portions of said side flaps to said topsheet; and a reservoir formed by a portion of each of said side flaps arranged in a multiplicity of layers, a first layer being formed by an inwardly longitudinally extending fold in said side flap and a second layer formed by an outwardly longitudinally extending fold, a portion of said first layer being secured to said topsheet by said securing means, the remaining portions of said first fold being unsecured, and a portion of said second layer being secured to a portion of said first layer.
Claim 2
Dependent Claim
179 words
A disposable absorbent article having a front waist region, a crotch region and a back waist region, said absorbent article comprising: a liquid pervious topsheet; a liquid impervious backsheet associated with said topsheet; an absorbent core having side edges, said absorbent core disposed between said topsheet and said backsheet; a flexible side flap extending outwardly from and along each side edge of said absorbent core in at least the crotch region; an elastic member secured to each of said side flaps; a securing means for securing portions of said side flaps to said topsheet; and a reservoir formed by a portion of each of said side flaps arranged in a multiplicity of layers, a first layer being formed by an inwardly longitudinally extending fold in said side flap and a second layer formed by an outwardly longitudinally extending fold, a portion of said first layer being secured to said topsheet by said securing means, the remaining portions of said first fold being unsecured, and a portion of said second layer being secured to a portion of said first layer.
Claim 3
Dependent Claim
15 words
The disposable absorbent article of claim 1 wherein said securing means is a glue spot.
Claim 4
Dependent Claim
18 words
The disposable absorbent article of claim 1 wherein said securing means is a pressure and heat bonded pattern.
Claim 5
Dependent Claim
131 words
A disposable absorbent article having a front waist region, a crotch region and a back waist region, said absorbent article comprising: a liquid pervious topsheet; a liquid impervious backsheet associated with said topsheet; an absorbent core having said edges, said absorbent core disposed between said topsheet and said backsheet; a flexible side flap extending outwardly from and along each side edge of said absorbent core in at least the crotch region; an elastic member secured to each of said side flaps; a securing means for securing portions of said side flap to said topsheet; and a reservoir formed by a portion of said side flap being secured to said topsheet adjacent said side edge of said absorbent core by said securing means, the remaining portions of said side flaps being unsecured.
Claim 6
Dependent Claim
131 words
A disposable absorbent article having a front waist region, a crotch region and a back waist region, said absorbent article comprising: a liquid pervious topsheet; a liquid impervious backsheet associated with said topsheet; an absorbent core having said edges, said absorbent core disposed between said topsheet and said backsheet; a flexible side flap extending outwardly from and along each side edge of said absorbent core in at least the crotch region; an elastic member secured to each of said side flaps; a securing means for securing portions of said side flap to said topsheet; and a reservoir formed by a portion of said side flap being secured to said topsheet adjacent said side edge of said absorbent core by said securing means, the remaining portions of said side flaps being unsecured.
Claim 7
Dependent Claim
15 words
The disposable absorbent article of claim 4 wherein said securing means is a glue spot.
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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) | 1990-07-20 | 1991-01-19 | 1991-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-20 | 1995-01-19 | 1995-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-20 | 1999-01-19 | 1999-07-21 | $7700.00 | Window Closed / Lapsed |