US4144887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaper with tab fastener having backing web and face web
Assignee: Johnson and Johnson
•
Filing: 1976-10-20
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Granted: 1979-03-20
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Expires: 1996-10-20
Abstract
Abstract A disposable diaper having a facing sheet defining a diaper inside surface for direction toward an infant and a backing sheet defining a diaper outside surface is provided with adhesive tabs comprising a backing web and a face web. The backing web is folded over to form first and second anchoring legs which are attached to a marginal portion of the diaper received therebetween. The face web has a fixed end permanently attached to the second anchoring leg, and a free working portion provided with a layer of adhesive. The free working portion is movable from a folded-over storage position, in which the adhesive layer is releasably attached to a release region provided on the outer surface of the first anchoring leg, to a working position in which the adhesive layer is available to secure the diaper about an infant. If desired, the backing and facing webs may comprise an integral elongated tape segment. Secondary fastening means may be provided for refastening the diaper about an infant. In addition, an adhesive-free region may be provided at the distal end of the face web to facilitate the gripping of the free working portion.
Inventors
- 👤 John P. Milnamow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:10
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/56; A61F13/58
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
239 words
A disposable diaper having a facing sheet defining a diaper inside surface for direction toward an infant, a moisture-impervious backing sheet substantially coextensive with said facing sheet and defining a diaper outside surface, an absorbent panel positioned between said facing sheet and said backing sheet, and an adhesive tab fastener means which comprises: a backing web folded over to form first and second anchoring legs each having an inner face and an outer face, said web extending around and receiving a marginal portion of the diaper therebetween, and said inner face of said anchoring legs being provided with an adhesive coating by means of which said anchoring legs are permanently attached to the diaper marginal portion; a face web having a fixed end permanently attached to said second leg, a grippable adhesive-free region at the opposite end of said face web, and a free working portion situated between said fixed end and said adhesive-free region, said free working portion being provided with a layer of pressure-sensitive adhesive on one face thereof; and release means releasably attached to said adhesive layer on said free working portion; said grippable adhesive-free region extending inwardly away from said lateral margin of the diaper and beyond said release means and said first leg of said backing web, and said free working portion being separable from said release means to make said free working portion available for use in securing said diaper about an infant.
Claim 2
Dependent Claim
239 words
A disposable diaper having a facing sheet defining a diaper inside surface for direction toward an infant, a moisture-impervious backing sheet substantially coextensive with said facing sheet and defining a diaper outside surface, an absorbent panel positioned between said facing sheet and said backing sheet, and an adhesive tab fastener means which comprises: a backing web folded over to form first and second anchoring legs each having an inner face and an outer face, said web extending around and receiving a marginal portion of the diaper therebetween, and said inner face of said anchoring legs being provided with an adhesive coating by means of which said anchoring legs are permanently attached to the diaper marginal portion; a face web having a fixed end permanently attached to said second leg, a grippable adhesive-free region at the opposite end of said face web, and a free working portion situated between said fixed end and said adhesive-free region, said free working portion being provided with a layer of pressure-sensitive adhesive on one face thereof; and release means releasably attached to said adhesive layer on said free working portion; said grippable adhesive-free region extending inwardly away from said lateral margin of the diaper and beyond said release means and said first leg of said backing web, and said free working portion being separable from said release means to make said free working portion available for use in securing said diaper about an infant.
Claim 3
Dependent Claim
85 words
The disposable diaper as defined in claim 1 wherein said release means is carried on said outer face of said first anchoring leg and provides a release region facing in the same direction as said diaper inside surface; said free working portion being movable from a folded-over storage position wherein said free working portion is releasably adhered to said release region to a working position wherein said free working portion of said face web is available for use in securing said diaper about an infant.
Claim 4
Dependent Claim
26 words
The disposable diaper as defined in claim 2 wherein said release region is substantially coextensive with said layer of pressure-sensitive adhesive on said free working portion.
Claim 5
Dependent Claim
39 words
The disposable diaper as defined in claim 2 wherein said layer of adhesive on said free working portion faces in the same direction as said diaper inside surface when said tab fastener means is extended to said working position.
Claim 6
Dependent Claim
25 words
The disposable diaper as defined in claim 2 wherein said release means is a release coating on said outer face of said first anchoring leg.
Claim 7
Dependent Claim
17 words
The disposable diaper as defined in claim 5 wherein said release coating comprises a silicone release compound.
Claim 8
Dependent Claim
39 words
The disposable diaper as defined in claim 2 wherein said release means comprises a ribbon segment which has one face adhesively affixed to the outer face of said first anchoring leg and an opposite face having a release coating.
Claim 9
Dependent Claim
19 words
The disposable diaper as defined in claim 1 wherein said face web is adhesively attached to said backing web.
Claim 10
Dependent Claim
50 words
The disposable diaper as defined in claim 2 wherein said grippable adhesive-free region extends for a distance which is at least about 1/8 of the length of said free working portion and projects inwardly from and beyond said release region when said free working portion is in the storage position.
Claim 11
Dependent Claim
27 words
The disposable diaper as defined in claim 1 wherein said face web further includes a second adhesive-free region between said fixed end and said free working portion.
References Cited (Backward Citations)
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US3833456A
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US3893460A
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Cited
US4020842A
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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) | 1982-03-19 | 1982-09-18 | 1983-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-19 | 1986-09-18 | 1987-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-19 | 1990-09-18 | 1991-03-20 | $7700.00 | Window Closed / Lapsed |