US4029098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape fastener for disposable diaper
Assignee: Colgate Palmolive Co
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Filing: 1975-11-10
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Granted: 1977-06-14
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Expires: 1995-11-10
Abstract
Abstract A disposable diaper comprising, an absorbent pad assembly having an absorbent pad, opposed surfaces, and at least one side edge. The diaper has a pressure-sensitive tape strip having an outer securement section for securing the diaper about an infant. The fastener has a sheet having an inner portion including a thermoplastic material secured to one of the surfaces of the pad assembly, with the sheet extending from the inner portion toward the side edge of the pad assembly.
Inventors
- 👤 Hamzeh Karami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:30
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/56; A61F13/58
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
98 words
A disposable diaper, comprising: an absorbent pad assembly having an absorbent pad, opposed surfaces, and at least one side edge; and a tape fastener comprising, a pressure-sensitive tape strip having an outer securement section for securing the diaper about an infant, and a release sheet associated with the securement section and having an inner portion permanently joined to one of said surfaces of the pad assembly over the pad as a unitary piece by being fused with a heat sensitive plastic material, with said sheet extending from said inner portion toward said side edge of the pad assembly.
Claim 2
Dependent Claim
98 words
A disposable diaper, comprising: an absorbent pad assembly having an absorbent pad, opposed surfaces, and at least one side edge; and a tape fastener comprising, a pressure-sensitive tape strip having an outer securement section for securing the diaper about an infant, and a release sheet associated with the securement section and having an inner portion permanently joined to one of said surfaces of the pad assembly over the pad as a unitary piece by being fused with a heat sensitive plastic material, with said sheet extending from said inner portion toward said side edge of the pad assembly.
Claim 3
Dependent Claim
24 words
The diaper of claim 1 wherein said sheet comprises a strip of thermoplastic material having at least a portion fused to said one surface.
Claim 4
Dependent Claim
41 words
The diaper of claim 1 wherein said tape strip has an inner section secured to the other of said pad assembly surfaces, and in which said securement section extends from the inner section past said side edge of the pad assembly.
Claim 5
Dependent Claim
43 words
The diaper of claim 3 wherein an outer end of said sheet extends past the side edge of the pad assembly, with the outer end of said sheet being secured to adhesive on the securement section of tape strip adjacent said side edge.
Claim 6
Dependent Claim
21 words
The diaper of claim 4 wherein said strip securement section is releasably attached to an outer release surface of said sheet.
Claim 7
Dependent Claim
17 words
The diaper of claim 4 wherein said sheet has an inner end fused to said pad assembly.
Claim 8
Dependent Claim
47 words
The diaper of claim 1 wherein an outer end of the sheet is spaced from the strip securement section and located adjacent said side edge of the pad assembly, and in which the strip securement section is releasably attached to an outer release surface of said sheet.
Claim 9
Dependent Claim
25 words
The diaper of claim 7 wherein said outer end of said sheet is fused by thermoplastic material to said one surface of the pad assembly.
Claim 10
Dependent Claim
29 words
The diaper of claim 8 wherein said sheet is fused by thermoplastic material to said one surface of the pad assembly intermediate inner and outer ends of said sheet.
Claim 11
Dependent Claim
33 words
The diaper of claim 1 wherein said sheet includes an outer strip of a first material, and bonding means of a thermoplastic material intermediate said outer strip and one surface of said assembly.
Claim 12
Dependent Claim
35 words
The diaper of claim 10 wherein said bonding means comprises a segment of thermoplastic material adjacent an inner end of said sheet, said segment being fused to secure said inner end to the pad assembly.
Claim 13
Dependent Claim
62 words
The diaper of claim 8 wherein said sheet includes an outer strip of a first material, and bonding means of a thermoplastic material intermediate said outer strip and one surface of said pad assembly, and said bonding means comprises a segment of thermoplastic material adjacent said outer sheet end, said segment being fused to secure said outer end of the pad assembly.
Claim 14
Dependent Claim
68 words
The diaper of claim 9 wherein said sheet includes an outer strip of a first material, and bonding means of a thermoplastic material intermediate said outer strip and one surface of said pad assembly, and in which said bonding means comprises an inner strip of thermoplastic material extending between inner outer ends of said sheet, said inner strip being fused to secure said sheet to the pad assembly.
Claim 15
Dependent Claim
14 words
The diaper of claim 10 wherein said bonding means comprises a hot melt adhesive.
Claim 16
Dependent Claim
31 words
The diaper of claim 1 in which said pad assembly includes a thermoplastic backing sheet, and in which the fastener sheet is fused by lateral side margins of said backing sheet.
Claim 17
Dependent Claim
37 words
The diaper of claim 1 wherein said sheet has an outer release surface having a relatively low affinity for adhesive on the said strip securement section, said securement section being releasably attached to said sheet release surface.
Claim 18
Dependent Claim
27 words
The diaper of claim 1 in which said pad assembly includes a thermoplastic cover sheet, and in which the fastener sheet is fused by said cover sheet.
Claim 19
Dependent Claim
17 words
The diaper of claim 1 wherein said sheet has an inner end fused to said pad assembly.
Claim 20
Dependent Claim
86 words
A disposable diaper, comprising: an absorbent pad assembly having an absorbent pad and opposed surfaces; a pressure-sensitive tape strip having a securement section for securing the diaper about an infant; and a release sheet having an outer release surface for releasable attachment of said strip securement section to said release surface, said release sheet having at least a portion permanently joined to one of said surfaces of the pad assembly over the pad as a unitary piece by being fused with a heat sensitive plastic material.
Claim 21
Dependent Claim
86 words
A disposable diaper, comprising: an absorbent pad assembly having an absorbent pad and opposed surfaces; a pressure-sensitive tape strip having a securement section for securing the diaper about an infant; and a release sheet having an outer release surface for releasable attachment of said strip securement section to said release surface, said release sheet having at least a portion permanently joined to one of said surfaces of the pad assembly over the pad as a unitary piece by being fused with a heat sensitive plastic material.
Claim 22
Dependent Claim
29 words
The diaper of claim 19 wherein said release sheet comprises a strip of thermoplastic material, with at least a portion of said strip being fused to the pad assembly.
Claim 23
Dependent Claim
44 words
The diaper of claim 19 wherein said release sheet comprises, an outer strip of a first material defining said release surface, and a thermoplastic material intermediate said outer strip and said one surface being fused to secure the outer strip to the pad assembly.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-13 | 1980-12-13 | 1981-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-13 | 1984-12-13 | 1985-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-13 | 1988-12-13 | 1989-06-14 | $7700.00 | Window Closed / Lapsed |