US4676787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaper
Assignee: Gerber Childrenswear Inc
•
Filing: 1985-12-06
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Granted: 1987-06-30
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Expires: 2005-12-06
Abstract
Abstract A diaper is woven with an unfolded width of greater than about 40 inches, and is then folded along not fewer than three warp-direction fold lines in such a way that the central panel of the folded diaper includes at least four superposed layers while each side panel includes only one or two superposed layers. The number of filling yarns per inch in the diaper is considerably reduced, as compared to conventional diapers, thus providing an increase in production speed and hence a reduction in production cost, without decreasing (and generally increasing) the total thread count per square inch in, and absorbency of, the central panel.
Inventors
- 👤 Timothy L. Sergeant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:15
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/49; A61F13/49003
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
113 words
A diaper prefolded from a blank of woven fabric so as to have a five layer, central panel and a pair of two layer side panels, the improvement comprising said blank being folded to one side of the plane thereof, along four fold lines extending warp-wise of the fabric to provide five zones, said zones including edge zones of double ply material and three intermediate zones of single ply material, said blank being further characterized by the number of filling yarns per inch being the same in each of said five zones, and the folding of said blank being so as to position said double ply edge zones internally of said prefolded diaper.
Claim 2
Dependent Claim
113 words
A diaper prefolded from a blank of woven fabric so as to have a five layer, central panel and a pair of two layer side panels, the improvement comprising said blank being folded to one side of the plane thereof, along four fold lines extending warp-wise of the fabric to provide five zones, said zones including edge zones of double ply material and three intermediate zones of single ply material, said blank being further characterized by the number of filling yarns per inch being the same in each of said five zones, and the folding of said blank being so as to position said double ply edge zones internally of said prefolded diaper.
Claim 3
Dependent Claim
25 words
The prefolded diaper of claim 1 wherein the total thread count per square inch in each of said side panels is less than about 300.
Claim 4
Dependent Claim
29 words
The prefolded diaper of claim 1 wherein said filling yarns have a weight lighter than 20 Ne and said weave comprises not less than 25 filling yarns per inch.
Claim 5
Dependent Claim
25 words
The prefolded diaper of claim 1 wherein said blank comprises a birdseye weave having in the range of 20 to 30 filling yarns per inch.
Claim 6
Dependent Claim
26 words
The prefolded diaper of claim 1 wherein weave includes in the range of 25 to 40 filling yarns per inch in each layer of said blank.
Claim 7
Dependent Claim
39 words
The prefolded diaper of claim 1 wherein said two of said zones have a greater number of warp yarns per inch than the other of said zones and being positioned intermediate adjacent ones of said other of said zones.
Claim 8
Dependent Claim
15 words
The prefolded diaper of claim 1 wherein said blank includes at least seven transversely-spaced zones.
Claim 9
Dependent Claim
44 words
The prefolded diaper of claim 1 wherein said central panel comprises at least a portion of each of said other of said zones and each of said side panels comprises at least a portion of each of two of said other of said zones.
Claim 10
Dependent Claim
19 words
The diaper of claim 1 wherein each of said zones has not more than 40 filling yarns per inch.
Claim 11
Dependent Claim
19 words
The prefolded diaper of claim 1 wherein the width of said blank is not less than about 48 inches.
Claim 12
Dependent Claim
23 words
The prefolded diaper of claim 1 wherein the total thread count per square inch in said center panel is not less than 500.
Claim 13
Dependent Claim
25 words
The prefolded diaper of claim 1 wherein said fabric has a weight, without starch, in the range of about 33/4 to 4 yards per pound.
References Cited (Backward Citations)
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Cited
US2860637A
Cited
US3072124A
Cited
US3339548A
Cited
CA990901A
Cited
US3318310A
Cited
US3395706A
Cited
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Cited
US3602224A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-29 | 1990-12-29 | 1991-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-29 | 1994-12-29 | 1995-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-29 | 1998-12-29 | 1999-06-30 | $7700.00 | Window Closed / Lapsed |