US4055182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable diaper reinforcement
Assignee: Colgate Palmolive Co
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Filing: 1975-10-08
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Granted: 1977-10-25
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Expires: 1995-10-08
Abstract
Abstract A disposable diaper comprising, an absorbent pad assembly having an absorbent pad, and a relatively thin sheet of flexible material covering a surface of the pad. The diaper has a tape fastener comprising, a pressure-sensitive tape strip having a section secured to an outer surface of the sheet in an area at least partially covering the pad. The diaper also has adhesive means directly bonding the sheet to the pad in a region extending from the area to a location spaced from the area in a direction away from forces normally applied to the strip during placement and use of the diaper.
Inventors
- 👤 Robert John Mack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:44
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/56; A61F13/58
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
165 words
A disposable diaper, comprising: an absorbent pad assembly having an absorbent pad, and a relatively thin sheet of flexible material covering a surface of said pad; a tape fastener comprising, a pressure-sensitive tape strip having a section secured to an outer surface of said sheet in an area at least partially covering said pad, and a securement portion adapted to extend past a side edge of the pad assembly for securing the diaper about an infant; and adhesive means directly bonding said sheet to said pad surface in an isolated region overlapping a major portion of the area and extending beyond said area to a location spaced from the area in a direction away from forces normally applied to the strip during placement and use of the diaper, said region including a portion extending substantially the width of said tape section in said area and being sufficiently saturated to reinforce the pad adjacent said surface and minimize tearing of the pad assembly in said region.
Claim 2
Dependent Claim
165 words
A disposable diaper, comprising: an absorbent pad assembly having an absorbent pad, and a relatively thin sheet of flexible material covering a surface of said pad; a tape fastener comprising, a pressure-sensitive tape strip having a section secured to an outer surface of said sheet in an area at least partially covering said pad, and a securement portion adapted to extend past a side edge of the pad assembly for securing the diaper about an infant; and adhesive means directly bonding said sheet to said pad surface in an isolated region overlapping a major portion of the area and extending beyond said area to a location spaced from the area in a direction away from forces normally applied to the strip during placement and use of the diaper, said region including a portion extending substantially the width of said tape section in said area and being sufficiently saturated to reinforce the pad adjacent said surface and minimize tearing of the pad assembly in said region.
Claim 3
Dependent Claim
97 words
The diaper of claim 1 wherein said sheet comprises a backing sheet of fluid impervious material covering at least a portion of a back surface of said pad, said strip section is secured to an outer surface of said backing sheet with at least a substantial portion of said section being located over said pad, and in which the adhesive means directly bonds said backing sheet to the pad surface such that the region extends to a location spaced inwardly from an inner end of the strip section toward a lateral central part of the pad assembly.
Claim 4
Dependent Claim
15 words
The diaper of claim 2 wherein said adhesive means is substantially continuous throughout said region.
Claim 5
Dependent Claim
29 words
The diaper of claim 2 wherein a sufficient quantity of the adhesive means is applied to the diaper to strengthen the back surface of the pad in said region.
Claim 6
Dependent Claim
13 words
The diaper of claim 2 wherein said region extends substantially throughout said area.
Claim 7
Dependent Claim
17 words
The diaper of claim 2 wherein said region extends past at least one side of said section.
Claim 8
Dependent Claim
15 words
The diaper of claim 6 wherein said region extends past both sides of said section.
Claim 9
Dependent Claim
21 words
The diaper of claim 7 wherein said region extends at least 1 inch (2.54 cm.) past both sides of said section.
Claim 10
Dependent Claim
31 words
The diaper of claim 2 wherein said region extends at least 1 inch (2.54 cm.) from the inner end of said section toward the lateral central part of the pad assembly.
Claim 11
Dependent Claim
19 words
The diaper of claim 2 wherein said region comprises a plurality of spaced elongated lines of said adhesive means.
Claim 12
Dependent Claim
15 words
The diaper of claim 10 wherein said lines are generally aligned with said strip section.
Claim 13
Dependent Claim
21 words
The diaper of claim 10 wherein said lines are disposed at an acute angle relative the length of said strip section.
Claim 14
Dependent Claim
21 words
The diaper of claim 10 wherein said lines are disposed generally at right angles relative the length of said strip section.
Claim 15
Dependent Claim
19 words
The diaper of claim 13 wherein the adhesive means includes a portion connecting an inner set of said lines.
Claim 16
Dependent Claim
27 words
The diaper of claim 2 wherein said pad includes a back wadding sheet, and in which said adhesive means secures the backing sheet to said wadding sheet.
Claim 17
Dependent Claim
42 words
The diaper of claim 2 wherein the pad includes a pair of side edges, the side edges of said pad are located adjacent side edges of the pad assembly, and said area is located adjacent the side edges of the pad assembly.
Claim 18
Dependent Claim
19 words
The diaper of claim 16 wherein said backing sheet and region extends around the side edges of the pad.
Claim 19
Dependent Claim
35 words
The diaper of claim 17 wherein said pad includes at least one wadding sheet defining the side edges of the pad, and in which the adhesive means secures the backing sheet to said wadding sheet.
Claim 20
Dependent Claim
112 words
The diaper of claim 2 wherein the pad assembly has a pair of side edges, the pad has a pair of side edges located adjacent the side edges of the pad assembly and a back wadding sheet, the backing sheet covers a back surface of the pad wadding sheet, said strip section comprises an inner section fixedly attached to the backing sheet adjacent one side edge of the pad assembly with a substantial portion of the section being located in said area over the wadding sheet, and the adhesive means directly bonds the backing sheet to the wadding sheet in a substantially continuous region extending throughout a substantial portion of said area.
Claim 21
Dependent Claim
159 words
A disposable diaper, comprising: an absorbent pad assembly having an absorbent pad, a fluid pervious top sheet, and a backing sheet of fluid impervious material covering at least a portion of a back surface of the pad and extending around a side edge of the pad; a tape fastener comprising, an elongated pressure-sensitive tape strip having a section secured to an outer surface of said backing sheet in an area with at least a substantial portion of said section being located over said pad, and a securement portion adapted to extend past a side edge of the pad assembly for securing the diaper about an infant; and adhesive means directly bonding said backing sheet to said pad in a region overlapping a major portion of the area and extending beyond said area around said side edge of the pad, said adhesive means being saturated in a sufficient quantity to reinforce the pad and minimize rupture of the backing sheet.
Claim 22
Dependent Claim
159 words
A disposable diaper, comprising: an absorbent pad assembly having an absorbent pad, a fluid pervious top sheet, and a backing sheet of fluid impervious material covering at least a portion of a back surface of the pad and extending around a side edge of the pad; a tape fastener comprising, an elongated pressure-sensitive tape strip having a section secured to an outer surface of said backing sheet in an area with at least a substantial portion of said section being located over said pad, and a securement portion adapted to extend past a side edge of the pad assembly for securing the diaper about an infant; and adhesive means directly bonding said backing sheet to said pad in a region overlapping a major portion of the area and extending beyond said area around said side edge of the pad, said adhesive means being saturated in a sufficient quantity to reinforce the pad and minimize rupture of the backing sheet.
Claim 23
Dependent Claim
19 words
The diaper of claim 20 wherein said pad includes a wadding sheet defining said side edge of the pad.
References Cited (Backward Citations)
USRE26151E
Cited
US3630201A
Cited
US3612055A
Cited
US3730798A
Cited
US3848594A
Cited
US3867940A
Cited
US3860003A
Cited
US3860003B1
Cited
US3860003B2
Cited
US3900031A
Cited
US3913580A
Cited
US3921639A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-24 | 1981-04-25 | 1981-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-24 | 1985-04-25 | 1985-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-24 | 1989-04-25 | 1989-10-25 | $7700.00 | Window Closed / Lapsed |