Patent US4960106A successfully refreshed from Google Patents.
Patent US4735624A successfully refreshed from Google Patents.
US4735624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
All-in-one diaper with branched absorbent pad and its method of manufacture
Assignee: Beghin Say SA
•
Filing: 1986-11-18
•
Granted: 1988-04-05
•
Expires: 2006-11-18
Abstract
Abstract The disposable all-in-one diaper of the type comprising an absorbent pad inserted between a sheet (1) impermeable to liquids and a permeable sheet (2), the diaper having in the longitudinal direction a crotch area (5) prolonged on both sides by a front trunk area (6) and a rear trunk area (7), said pad (3) being constituted by an absorbent material consisting essentially of hydrophilic fibres joined to one another in a manner such as to form a coherent structure covering a narrow part (31) corresponding to the crotch area (5), and widening out towards the front and rear areas, is characterized in that the pad consists, at least in the front trunk area, of at least three branches (32) placed longitudinally in the prolongation of the narrow part (31) diverging from one another so as to form cavities between sheets (1) and (2).
Inventors
- 👤 Paul Mazars
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:00
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/53; A61F13/531; A61F13/532; A61F13/45; A61F2013/4512; A61F2013/4568
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
157 words
A disposable all-in-one diaper comprising an absorbent pad inserted between a sheet impermeable to liquids and a sheet permeable to liquids, said diaper having in the longitudinal direction a crotch area, and a front trunk area and a rear trunk area extending from said crotch area; said front and rear trunk areas being of a width greater than said crotch area; said absorbent pad comprising an absorbent material containing hydrophilic fibers joined to one another in a manner so as to form a coherent structure substantially coextensive in width to said crotch area and containing a plurality of slits in said trunk areas to form a plurality of branches of pad material extending from said crotch area, said branches being fanned out to diverge from said crotch area toward the end of said trunk areas to form spaces which become progressively wider between said branches toward the end of said trunk areas remote from said crotch area.
Claim 2
Dependent Claim
157 words
A disposable all-in-one diaper comprising an absorbent pad inserted between a sheet impermeable to liquids and a sheet permeable to liquids, said diaper having in the longitudinal direction a crotch area, and a front trunk area and a rear trunk area extending from said crotch area; said front and rear trunk areas being of a width greater than said crotch area; said absorbent pad comprising an absorbent material containing hydrophilic fibers joined to one another in a manner so as to form a coherent structure substantially coextensive in width to said crotch area and containing a plurality of slits in said trunk areas to form a plurality of branches of pad material extending from said crotch area, said branches being fanned out to diverge from said crotch area toward the end of said trunk areas to form spaces which become progressively wider between said branches toward the end of said trunk areas remote from said crotch area.
Claim 3
Dependent Claim
14 words
The diaper according to claim 1 wherein said branches are of an odd number.
Claim 4
Dependent Claim
30 words
The diaper according to claim 2 wherein one of said branches is placed in the longitudinal axis of the pad with its width being greater that that of adjacent branches.
Claim 5
Dependent Claim
17 words
The diaper according to claim 1 wherein particles of superabsorbent product are incorporated in the absorbent mass.
Claim 6
Independent Claim
153 words
A method of making a diaper comprising the following steps: preparing a substantially rectangular absorbent pad comprising a crotch area and front and rear trunk areas extending from said crotch area; forming a plurality of slits in the longitudinal direction of said pad extending from the crotch area to the ends of said front and rear trunk areas to form a plurality of branches; positioning of said absorbent pad on a support area which is one of a liquid-impermeable sheet or a liquid-permeable sheet; fanning out said branches to diverge from said crotch area toward the end of said trunk areas to form spaces which become progressively wider between said branches toward the end of said trunk areas remote from said crotch area whereby the largest width to smallest width ratio is between 1 and 5, and applying the other of a liquid-impermeable or liquid-permeable sheet to the unsupported surface of said pad.
Claim 7
Independent Claim
153 words
A method of making a diaper comprising the following steps: preparing a substantially rectangular absorbent pad comprising a crotch area and front and rear trunk areas extending from said crotch area; forming a plurality of slits in the longitudinal direction of said pad extending from the crotch area to the ends of said front and rear trunk areas to form a plurality of branches; positioning of said absorbent pad on a support area which is one of a liquid-impermeable sheet or a liquid-permeable sheet; fanning out said branches to diverge from said crotch area toward the end of said trunk areas to form spaces which become progressively wider between said branches toward the end of said trunk areas remote from said crotch area whereby the largest width to smallest width ratio is between 1 and 5, and applying the other of a liquid-impermeable or liquid-permeable sheet to the unsupported surface of said pad.
Claim 8
Dependent Claim
14 words
The method according to claim 5 wherein said ratio is between 2 and 4.
Claim 9
Dependent Claim
19 words
The method according to claim 5 wherein the width of said rectangular pad is between 8 and 25 cm.
Claim 10
Dependent Claim
18 words
The method according to claim 5 wherein the width of the fanned area is less than 50 cm.
References Cited (Backward Citations)
US4413995A
Cited
US4642110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-04-05 | 1991-10-05 | 1992-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-05 | 1995-10-05 | 1996-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-05 | 1999-10-05 | 2000-04-05 | $7700.00 | Window Closed / Lapsed |