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US3783871A Expired / Lapsed US ⏱️ 0.0 years remaining

Diaper with thickened fastening areas

Assignee: Individual
•
Filing: 1972-02-14
•
Granted: 1974-01-08
•
Expires: 1992-02-14
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Abstract

Abstract An article such as a diaper or bed pad which includes a pad, an absorbent ply and a polymeric cover ply of extruded synthetic resin, may advantageously be made in various forms having, if desired, a synthetic resin cover ply light in weight and selectively given variable pin or tape retention strength by varying extrusion according to the strength needed to make the film stronger or weaker or softer or more flexible.

Inventors

  • 👤 R Sabee

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 14:42
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/15577; A61F13/15585; A61F13/51; A61F13/514; A61F13/51474; A61F13/51484; A61F13/56; A61F13/5622; A61F13/5633

Claims Analysis

Total Claims: 28
Claim 1
Independent Claim 62 words
A diaper or the like comprising an absorbent pad having attached to it an impervious plastic web, having relatively thick integral areas forming portions of the side margins and end margins of the diaper which extend inwardly from the ends and side edges of the web to form wide fastening zones which are tear resistant to receive connections for positioning the diaper.
Claim 2
Dependent Claim 62 words
A diaper or the like comprising an absorbent pad having attached to it an impervious plastic web, having relatively thick integral areas forming portions of the side margins and end margins of the diaper which extend inwardly from the ends and side edges of the web to form wide fastening zones which are tear resistant to receive connections for positioning the diaper.
Claim 3
Dependent Claim 25 words
A diaper or the like according to claim 1 in which relatively impervious thick areas are present at least at one corner of the diaper.
Claim 4
Dependent Claim 25 words
A diaper or the like according to claim 1 in which relatively impervious thick areas are present at least across one end of the diaper.
Claim 5
Dependent Claim 26 words
A diaper or the like according to claim 1 in which relatively impervious thick areas are folded around at least one longitudinal side of the diaper.
Claim 6
Dependent Claim 53 words
A diaper or the like comprising an absorbent pad having attached to it an impervious plastic web, having relatively thick integral areas tear resistant to receive connections for positioning the diaper and in which relatively thick areas of the impervious plastic sheet are spaced inwardly of the longitudinal edges of the absorbent pad.
Claim 7
Dependent Claim 53 words
A diaper or the like comprising an absorbent pad having attached to it an impervious plastic web, having relatively thick integral areas tear resistant to receive connections for positioning the diaper and in which relatively thick areas of the impervious plastic sheet are spaced inwardly of the longitudinal edges of the absorbent pad.
Claim 8
Dependent Claim 25 words
A diaper according to claim 1 in which the impervious plastic sheet has said relatively thick areas spaced away at least from the crotch area.
Claim 9
Dependent Claim 31 words
A diaper or the like according to claim 1 in which at least a part of the plastic sheet is a laminate comprising a coextrusion cOnsisting of plies of differing characteristics.
Claim 10
Dependent Claim 105 words
A diaper or the like comprising an absorbent pad having attached to it an impervious plastic web, having relatively thick integral areas tear resistant to receive connections for positioning the diaper in which at least a part of the plastic web is a laminate comprising a coextrusion consisting of plies of differing characteristics and in which one layer of the laminate is thick at the ends of the diaper while the other layer is correspondingly thick in the crotch portion thereby forming a laminate of substantially uniform total thickness while the ends are substantially stronger and less stretchable than the softer more conformable crotch area.
Claim 11
Dependent Claim 105 words
A diaper or the like comprising an absorbent pad having attached to it an impervious plastic web, having relatively thick integral areas tear resistant to receive connections for positioning the diaper in which at least a part of the plastic web is a laminate comprising a coextrusion consisting of plies of differing characteristics and in which one layer of the laminate is thick at the ends of the diaper while the other layer is correspondingly thick in the crotch portion thereby forming a laminate of substantially uniform total thickness while the ends are substantially stronger and less stretchable than the softer more conformable crotch area.
Claim 12
Dependent Claim 38 words
A diaper or the like according to claim 1 and having a crotch area and as to which areas spaced from said crotch area of the back sheet have less stretch and more strength than other areas thereof.
Claim 13
Dependent Claim 52 words
A diaper or the like according to claim 1 in which the diaper has a waist band area and the part of the waist band area of the plastic sheet at least at one end has less stretch and more strength than other portions of said waist band area of the diaper.
Claim 14
Dependent Claim 31 words
A diaper or the like according to claim 1 in which the absorbent pad has a pervious facing consisting of at least one ply of a high wet strength facial tissue.
Claim 15
Dependent Claim 21 words
A diaper of the like comprising an absorbent pad and a facing comprising an impervious external polymeric ply of non-uniform thickness.
Claim 16
Dependent Claim 21 words
A diaper of the like comprising an absorbent pad and a facing comprising an impervious external polymeric ply of non-uniform thickness.
Claim 17
Dependent Claim 44 words
A diaper or the like according to claim 1 in which the diaper has a crotch area from which relatively stronger and less stretchable back sheet areas are spaced, the crotch area being not only softer but more conformable than said last mentioned areas.
Claim 18
Dependent Claim 38 words
A diaper or the like according to claim 7 in which the coextrusion has one web relatively stronger and less stretchable than the other and the other web being softer and more conformable than the first mentioned web.
Claim 19
Dependent Claim 19 words
A diaper or the like according to claim 1 in which a ''''C'''' folded wrapper structure encloses the pad.
Claim 20
Dependent Claim 24 words
A diaper or the like according to claim 1 in which a box pleated backing encloses at least the crotch section of the pad.
Claim 21
Dependent Claim 29 words
A diaper according to claim 1 in which there is a back wrapper structure provided with a multiplicity of longitudinal folds constituting a box pleat configuration enclosing the pad.
Claim 22
Dependent Claim 44 words
In a diaper according to claim 1, a plastic web having a selected portion locally thick as compared with other portions of the web, all said portions being integral, said other portions being relatively flexible and soft, and said thick portion being relatively tear-resistant.
Claim 23
Dependent Claim 19 words
An article according to claim 18 in which the thick portion comprises a band extending transversely of the web.
Claim 24
Dependent Claim 20 words
An article according to claim 18 in which the thick portion comprises a relatively small area of limited lateral extent.
Claim 25
Dependent Claim 18 words
An article according to claim 17 in which the web is laminated to another web of different characteristics.
Claim 26
Dependent Claim 28 words
An article according to claim 21 in which the first mentioned web and said other web are extruded in immediate proximity to each other and immediately laminated together.
Claim 27
Dependent Claim 16 words
An article according to claim 1 in which said other web is a web of paper.
Claim 28
Dependent Claim 16 words
An article according to claim 22 in which said other web is a web of fabric.

References Cited (Backward Citations)

US2489104A Cited
US2545674A Cited
US3402715A Cited
US3509881A Cited
US3604422A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-01-07 1977-07-09 1978-01-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-01-07 1981-07-09 1982-01-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-01-07 1985-07-09 1986-01-08 $7700.00 Window Closed / Lapsed

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