US3794033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable diaper with center constriction
Assignee: Weyerhaeuser Co
•
Filing: 1972-03-01
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Granted: 1974-02-26
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Expires: 1992-03-01
Abstract
Abstract A contoured disposable diaper is formed from a generally rectangular flat pad wherein a pair of slits are positioned in the sides and the resulting flaps are folded over and bonded to form a constricted center portion. By appropriately positioning the slits, the overall asymmetrical shape of the diaper can be determined based on anatomical size while at the same time placing more absorbent material in the critical areas of severe wetting.
Inventors
- 👤 A Ryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:33
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/49; A61F13/49001
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
141 words
A diaper pad of the type constructed from a generally quadrilaterally shaped piece of absorbent material wherein the improvement comprises: a pair of flaps in said pad having as their respective fold axes lines extending inwardly from two opposed sides of said pad, each axis extending from a point near adjacent corner apices of said pad to a point on a common adjacent side of said pad, said flaps being established by a pair of slits in said pad each slit extending from a point near opposite adjacent corner apices on the two opposed sides to the respective fold axis, and said flaps being folded over the surface of said pad to lie in substantially the same plane thereby defining a diaper shape with front, back and center portions and having at said center portion three overlapping layers of absorbent material.
Claim 2
Dependent Claim
141 words
A diaper pad of the type constructed from a generally quadrilaterally shaped piece of absorbent material wherein the improvement comprises: a pair of flaps in said pad having as their respective fold axes lines extending inwardly from two opposed sides of said pad, each axis extending from a point near adjacent corner apices of said pad to a point on a common adjacent side of said pad, said flaps being established by a pair of slits in said pad each slit extending from a point near opposite adjacent corner apices on the two opposed sides to the respective fold axis, and said flaps being folded over the surface of said pad to lie in substantially the same plane thereby defining a diaper shape with front, back and center portions and having at said center portion three overlapping layers of absorbent material.
Claim 3
Dependent Claim
25 words
The pad as in claim 1 further comprising means to bond said flaps to said pad after folding thereby forming a fixed center constricted portion.
References Cited (Backward Citations)
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US2788003A
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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) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |