Patent US2616916A successfully refreshed from Google Patents.
US4397645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable absorbent article having an improved liquid containment construction
Assignee: Procter and Gamble Co
•
Filing: 1981-02-24
•
Granted: 1983-08-09
•
Expires: 2001-02-24
Abstract
Abstract An article of manufacture is disclosed for absorbing liquids, particularly body fluids such as urine. An absorbent core is encased in an outer covering layer. Leakage resistant members are affixed at each segment of the diaper from which leakage is to be reduced. The leakage resistant member has a facing sheet having compacted portions affixed to a backing sheet. The leakage resistant members may be elasticized by providing a separate elastic element or by using an elastic material for the backing sheet.
Inventors
- 👤 Kenneth B. Buell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:43
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; A61F13/51; A61F13/511; A61F13/513; A61F13/47; A61F13/53; A61F13/539; A61F2013/49068; A61F2013/49076; A61F13/514; A61F13/51401; A61F2013/51409; A61F2013/5395
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
198 words
A disposable diaper comprising: an outer covering layer; an absorbent core means for absorbing liquids, said absorbent core means being encased in said outer covering layer; a peripheral edge comprising a first longitudinal side edge and a second longitudinal side edge; and a multiplicity of leakage resistant members, one of said leakage resistant members being affixed at said first longitudinal side edge and one of said leakage resistant members being affixed at said second longitudinal side edge, said leakage resistant member comprising a fibrous facing sheet, a liquid impermeable backing sheet underlaying said facing sheet, and an elastic member interposed between said facing sheet and said backing sheet, said facing sheet having a compacted portion and an uncompacted portion, said compacted portion comprising a multiplicity of continuous bands which redirect liquid away from said peripheral edge from which leakage may occur, said elastic member being affixed to said compacted portion and being affixed to said backing sheet, said elastic member gathering said facing sheet when said elastic member is unrestrained, said uncompacted portion forming pillows when said facing sheet is gathered, said facing sheet having a wearer-contacting surface and said compacted portion being disposed below said wearer-contacting surface.
Claim 2
Dependent Claim
198 words
A disposable diaper comprising: an outer covering layer; an absorbent core means for absorbing liquids, said absorbent core means being encased in said outer covering layer; a peripheral edge comprising a first longitudinal side edge and a second longitudinal side edge; and a multiplicity of leakage resistant members, one of said leakage resistant members being affixed at said first longitudinal side edge and one of said leakage resistant members being affixed at said second longitudinal side edge, said leakage resistant member comprising a fibrous facing sheet, a liquid impermeable backing sheet underlaying said facing sheet, and an elastic member interposed between said facing sheet and said backing sheet, said facing sheet having a compacted portion and an uncompacted portion, said compacted portion comprising a multiplicity of continuous bands which redirect liquid away from said peripheral edge from which leakage may occur, said elastic member being affixed to said compacted portion and being affixed to said backing sheet, said elastic member gathering said facing sheet when said elastic member is unrestrained, said uncompacted portion forming pillows when said facing sheet is gathered, said facing sheet having a wearer-contacting surface and said compacted portion being disposed below said wearer-contacting surface.
Claim 3
Dependent Claim
25 words
The disposable diaper of claim 1 wherein the ratio of the caliper of said uncompacted portion to the caliper of said compacted portion is 1.5:1.
Claim 4
Dependent Claim
13 words
The disposable diaper of claim 1 wherein said continuous bands have expanded areas.
Claim 5
Dependent Claim
12 words
The disposable diaper of claim 3 wherein said bands have disconnected areas.
Claim 6
Dependent Claim
177 words
A disposable diaper comprising: an outer covering layer; an absorbent core means for absorbing liquids, said absorbent core means being encased in said outer covering layer; a peripheral edge comprising a first longitudinal side edge and a second longitudinal side edge; and a multiplicity of leakage resistant members, one of said leakage resistant members being affixed at said first longitudinal side edge and one of said leakage resistant members being affixed at said second longitudinal side edge, said leakage resistant member comprising a fibrous facing sheet, a liquid impermeable backing sheet underlaying said facing sheet, and an elastic member interposed between said facing sheet and said backing sheet, said facing sheet having a compacted portion and an uncompacted portion, said compacted portion comprising an array of discrete areas which render the path followed by liquid tortuous, said elastic member gathering said facing sheet when said elastic member is unrestrained, said uncompacted portion forming pillows when said facing sheet is gathered, said facing sheet having a wearer-contacting surface and said compacted portion being disposed below said wearer-contacting surface.
Claim 7
Dependent Claim
177 words
A disposable diaper comprising: an outer covering layer; an absorbent core means for absorbing liquids, said absorbent core means being encased in said outer covering layer; a peripheral edge comprising a first longitudinal side edge and a second longitudinal side edge; and a multiplicity of leakage resistant members, one of said leakage resistant members being affixed at said first longitudinal side edge and one of said leakage resistant members being affixed at said second longitudinal side edge, said leakage resistant member comprising a fibrous facing sheet, a liquid impermeable backing sheet underlaying said facing sheet, and an elastic member interposed between said facing sheet and said backing sheet, said facing sheet having a compacted portion and an uncompacted portion, said compacted portion comprising an array of discrete areas which render the path followed by liquid tortuous, said elastic member gathering said facing sheet when said elastic member is unrestrained, said uncompacted portion forming pillows when said facing sheet is gathered, said facing sheet having a wearer-contacting surface and said compacted portion being disposed below said wearer-contacting surface.
References Cited (Backward Citations)
US1314799A
Cited
US2004088A
Cited
US2530647A
Cited
US2701567A
Cited
US3572342A
Cited
US3520303A
Cited
US3636952A
Cited
US3693622A
Cited
US3799167A
Cited
US3828784A
Cited
US3860003A
Cited
US3860003B1
Cited
US3860003B2
Cited
US4015604A
Cited
US4050462A
Cited
GB2016262B
Cited
GB2023431A
Cited
US4226238A
Cited
US4259958A
Cited
US4239578A
Cited
US4300562A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-08 | 1987-02-07 | 1987-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-08 | 1991-02-07 | 1991-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-08 | 1995-02-07 | 1995-08-09 | $7700.00 | Window Closed / Lapsed |