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US3646937A Expired / Lapsed US ⏱️ 0.0 years remaining

Improved pressure-sensitive tape fastener for disposable diapers

Assignee: Procter and Gamble Co
•
Filing: 1970-02-19
•
Granted: 1972-03-07
•
Expires: 1990-02-19
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Abstract

Abstract An improved fastening device for securing the corners of disposable diapers which includes a strip of pressure-sensitive tape held in superposed relationship with respect to a corner of the plastic backing sheet prior to use. One end of the tape is directly adhered to the plastic backing sheet. A treated release liner is interposed between the other end of the tape and the plastic backing sheet. The release liner is directly adhered to the backing sheet whereas the tape is releasably held in contact with the release liner. Securement means are provided for holding down the releasable end of the tape and maintaining it in contact with the release liner for the purpose of preventing inadvertent removal. The tape has a tab end between the securement means and the extremity of the releasable end of the tape to facilitate easy removal from the release liner when preparing the tape for fastening and holding the adjoining corners of a diaper.

Inventors

  • 👤 Dale A Gellert

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 10:53
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/56; A61F13/58

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 51 words
A pressure-sensitive tape fastener for a disposable diaper as claimed in claim 1 wherein said securement means comprises a narrow tape secured to the upper surface of said release liner, said narrow tape having a greater adherence to said release liner as compared to its adherence to said pressure-sensitive tape fastener.
Claim 2
Dependent Claim 50 words
A pressure-sensitive tape fastener for a disposable diaper as claimed in claim 1 wherein said securement means comprises an untreated area on the surface of the release liner to provide an area in which the releasable end of the tape fastener will have a greater adherence to the release liner.
Claim 3
Dependent Claim 45 words
A pressure-sensitive tape fastener for a disposable diaper as claimed in claim 1 wherein said securement means comprises at least one discontinuity in the release liner to permit direct adherence of the pressure-sensitive tape fastener to said backing sheet in the area of the discontinuity.
Claim 4
Dependent Claim 25 words
A pressure-sensitive tape fastener for a disposablE diaper as claimed in claim 4 wherein said discontinuity comprises at least one aperture in the release liner.
Claim 5
Dependent Claim 28 words
A pressure-sensitive tape fastener for a disposable diaper as claimed in claim 4 wherein said discontinuity comprises at least one notch in the edge of the release liner.
Claim 6
Dependent Claim 38 words
A pressure-sensitive tape fastener for a disposable diaper as claimed in claim 1 including a line of weakening between the attached end and the releasable end to facilitate severance of said tape at the time of diaper removal.
Claim 7
Dependent Claim 38 words
A pressure-sensitive tape fastener for a disposable diaper as claimed in claim 2 including a line of weakening between the attached end and the releasable end to facilitate severance of said tape at the time of diaper removal.
Claim 8
Dependent Claim 38 words
A pressure-sensitive tape fastener for a disposable diaper as claimed in claim 3 including a line of weakening between the attached end and the releasable end to facilitate severance of said tape at the time of diaper removal.
Claim 9
Dependent Claim 38 words
A pressure-sensitive tape fastener for a disposable diaper as claimed in claim 4 including a line of weakening between the attached end and the releasable end to facilitate severance of said tape at the time of diaper removal.

References Cited (Backward Citations)

US26151A Cited
US2627858A Cited
US2649858A Cited
US2714889A Cited
US3049228A Cited
US3196874A Cited
US3554195A Cited
US3561446A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-03-07 1975-09-06 1976-03-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-03-07 1979-09-06 1980-03-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-03-07 1983-09-06 1984-03-07 $7700.00 Window Closed / Lapsed

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