US3860004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable diaper
Assignee: Paper Converting Machine Co
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Filing: 1973-10-05
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Granted: 1975-01-14
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Expires: 1993-10-05
Abstract
Abstract A disposable diaper wherein interrupted transverse and angled convergent lines of compression are applied to a diaper blank with adhesive adjacent the convergent lines to provide a diaper having a relatively rounded, unstressed crotch-forming portion and a rounded leg outfold when applied; yet which is relatively thin in its folded condition prior to application.
Inventors
- 👤 Ernst Daniel Nystrand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:59
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/49; A61F13/49001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
260 words
A generally rectangular disposable diaper comprising an outer impermeable sheet, a layer of liquid absorbing material and an inner liquid permeable sheet all united perimetrically, said diaper having a central transversely extending interrupted line of compression whereby the diaper is adapted to be folded on itself to provide a crotch-forming portion in the middle of said interrupted line of compression, said line having a segment extending in from each longitudinal edge with each segment terminating short of the crotch-forming portion of the diaper, a pair of inwardly convergent foreshortened lines of compression associated with each of said segments and disposed at about 45* relative thereto, each of said convergent lines of compression extending in from each longitudinal edge but terminating short of the crotch-forming portion of the diaper and short of the inner end of its associated segment and cooperating with said associated segment to provide a relatively rounded, unstressed crotch-forming portion, said diaper prior to installation on an infant being folded along said interrupted line and having an outfold along each line segment and an infold in said crotch-forming portion, and further having an infold along each convergent line whereby said diaper is relatively thin for packaging, and means adhering said inner sheet together adjacent each longitudinal edge but spaced inwardly therefrom on opposite sides of each of said convergent lines of compression to provide a rounded leg outfold in said diaper when applied to the body of an infant, said leg outfold extending generally along an imaginary line connecting a pair of adhering means adjacent one longitudinal edge.
Claim 2
Dependent Claim
260 words
A generally rectangular disposable diaper comprising an outer impermeable sheet, a layer of liquid absorbing material and an inner liquid permeable sheet all united perimetrically, said diaper having a central transversely extending interrupted line of compression whereby the diaper is adapted to be folded on itself to provide a crotch-forming portion in the middle of said interrupted line of compression, said line having a segment extending in from each longitudinal edge with each segment terminating short of the crotch-forming portion of the diaper, a pair of inwardly convergent foreshortened lines of compression associated with each of said segments and disposed at about 45* relative thereto, each of said convergent lines of compression extending in from each longitudinal edge but terminating short of the crotch-forming portion of the diaper and short of the inner end of its associated segment and cooperating with said associated segment to provide a relatively rounded, unstressed crotch-forming portion, said diaper prior to installation on an infant being folded along said interrupted line and having an outfold along each line segment and an infold in said crotch-forming portion, and further having an infold along each convergent line whereby said diaper is relatively thin for packaging, and means adhering said inner sheet together adjacent each longitudinal edge but spaced inwardly therefrom on opposite sides of each of said convergent lines of compression to provide a rounded leg outfold in said diaper when applied to the body of an infant, said leg outfold extending generally along an imaginary line connecting a pair of adhering means adjacent one longitudinal edge.
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) | 1978-01-13 | 1978-07-15 | 1979-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-13 | 1982-07-15 | 1983-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-13 | 1986-07-15 | 1987-01-14 | $7700.00 | Window Closed / Lapsed |