US3814100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable diaper
Assignee: Paper Converting Machine Co
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Filing: 1972-03-01
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Granted: 1974-06-04
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Expires: 1992-03-01
Abstract
Abstract A disposable diaper having a C-folded pad within a wrapping envelope, the envelope being substantially wider than the Cfolded pad to provide side flaps adapted to initially underlie the pad and be selectively folded outwardly for securing the pad in place, the C-fold providing a lined channel on one side of the pad which encourages more even, rapid, and complete dispersion of body fluid.
Inventors
- 👤 E Nystrand
- 👤 Intosh B Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:24
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/15577; A61F13/15617; A61F13/15634; B; B32; B32B; B32B3/00; B32B3/26; B32B3/28; A61F13/53; A61F13/534; A61F13/53409; A61F13/53418; A61F13/537; A61F13/56; A61F13/58; A61F2013/15821; A61F13/45; A61F13/49; A61F2013/49068; A61F2013/49076; A61F13/51; A61F13/514; A61F13/51401; A61F2013/51409; A61F2013/530131; A61F2013/53445; A61F2013/53765; A61F2013/53786; A61F2013/586; B32B2307/00; B32B2307/70; B32B2307/726; B32B2307/7265; B32B2555/00; B32B2555/02; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1008; Y10T156/101; Y10T156/1011; Y10T156/1015; Y10T156/1028; Y10T156/103; Y10T156/1051; Y10T156/1052; Y10T156/1056; Y10T156/1057
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
154 words
A disposable diaper comprising a generally rectangular pad of soft, moisture-absorbent material, a wadding web of moistureabsorbent matErial surrounding the pad, the pad and wadding web being folded into a C-shape along a pair of spaced apart lines to provide an outer pad portion and a pair of inner pad portions superposed on the outer pad portion to form an elongated channel extending parallel to said spaced-apart lines, the inner pad portions and the outer pad portion being of approximately the same thickness, each inner pad portion being separated from the confronting part of the outer pad portion by a double thickness of said wadding web, an enveloping wrap encircling the C-folded pad and wadding web and extending across said channel, said enveloping wrap providing side flaps adapted to be unfolded in the direction transverse to the length of said channel and thereafter united at the respective ends thereof and about a baby''s waist.
Claim 2
Dependent Claim
154 words
A disposable diaper comprising a generally rectangular pad of soft, moisture-absorbent material, a wadding web of moistureabsorbent matErial surrounding the pad, the pad and wadding web being folded into a C-shape along a pair of spaced apart lines to provide an outer pad portion and a pair of inner pad portions superposed on the outer pad portion to form an elongated channel extending parallel to said spaced-apart lines, the inner pad portions and the outer pad portion being of approximately the same thickness, each inner pad portion being separated from the confronting part of the outer pad portion by a double thickness of said wadding web, an enveloping wrap encircling the C-folded pad and wadding web and extending across said channel, said enveloping wrap providing side flaps adapted to be unfolded in the direction transverse to the length of said channel and thereafter united at the respective ends thereof and about a baby''s waist.
Claim 3
Dependent Claim
77 words
The structure of claim 1 in which said enveloping wrap includes a substantially liquid-pervious sheet adjacent said inner pad portions and having a width exceeding the width of said C-folded pad, said enveloping wrap also including a substantially liquid-impervious sheet adjacent said outer pad portion and generally coextensive with said liquid-pervious sheet, said sheets being perimetrically united to form said enveloping wrap, said sheets being united along the edges of said C-folded pad to provide side flaps.
Claim 4
Dependent Claim
21 words
The structure of claim 2 in which prior to use said flaps are folded into positions adjacent said outer pad portion.
Claim 5
Dependent Claim
31 words
The structure of claim 3 in which said side flaps are each reverse folded along a line parallel to but spaced from the union at the edge of said C-folded pad.
Claim 6
Dependent Claim
68 words
The structure of claim 4 in which each of said side flaps is united in the portion thereof between said reverse fold line and the edge of said C-folded pad to a portion of said liquid-impervious sheet, the last mentioned union being located approximately midway of the length of said diaper whereby the ends of said side flaps are free but the intermediate portions are restricted during unfolding.
Claim 7
Dependent Claim
17 words
The structure of claim 3 in which ends of said side flaps are equipped with securing tabs.
Claim 8
Dependent Claim
21 words
The structure of claim 3 in which said wadding web is a single sheet having longitudinal edges overlapped within said channel.
Claim 9
Dependent Claim
21 words
The structure of claim 1 in which said channel between said inner pad portion is at least about one inch wide.
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) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |