Patent US2616916A successfully refreshed from Google Patents.
← Back to Patent Explorer
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
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

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.

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

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag