Patent FR1183358A successfully refreshed from Google Patents.
US3766922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Throw-away boy and girl diapers
Assignee: Kimberly Clark Tissue Co
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Filing: 1971-08-02
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Granted: 1973-10-23
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Expires: 1991-08-02
Abstract
Abstract Throw-away diapers having elongate, absorbent pads, or sections of cellulosic fibers disposed within covering envelopes having a fluid pervious and fluid containing facing cover layer, and a backing cover layer. The absorbent pads have predetermined regions of differing fiber weight through the thickness per unit surface area thereof wherein the greatest weight of fibers through the thickness per unit surface area is included in a predetermined region where it is most needed to retain body fluids. An embossed pattern in the facing layer and underlying absorbent pad defines valleys and ridges in all of the predetermined regions, and the density of the absorbent pad in the valleys is greater than the density of the absorbent pad in the ridges. Absorbent pads in throw-away diapers for use by girl babies comprise an elongate, fluff batt of cellulosic fibers in which an elongate, middle one-third thereof constitutes the predetermined region having the greatest weight of fibers through the thickness per unit surface area. Absorbent pads in throw-away diapers for use by boy babies comprise a main fluff batt and a secondary fluff batt. The elongate, forward one-third of the main fluff batt constitutes the predetermined region having the greatest weight of fibers through the thickness per unit surface area thereof. The secondary fluff batt is disposed forwardly of the main fluff batt and is folded over the main fluff batt during use of the diaper. The elongate, absorbent pads utilized in the throw-away diapers of this invention also constitute a part of the present invention.
Inventors
- 👤 E Krusko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:17
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/49; A61F13/491; A61F13/4915; A61F13/15577; A61F13/15617; A61F13/15626; A61F13/15634; A61F13/494; A61F13/49466; A61F13/51; A61F13/511; A61F13/51104; A61F13/51121; A61F13/53; A61F13/531; A61F13/532; A61F2013/5326
Claims Analysis
Total Claims: 42
Claim 1
Independent Claim
165 words
An absorbent pad comprising an elongate, absorbent section of cellulosic fibers having opposed major surfaces, said absorbent section having predetermined regions of different fiber weight wherein the greatest weight of fibers is included in a predetermined region where it is most needed to retain body fluids; said absorbent section having an embossed pattern in at least one major surface thereof, said embossed pattern defining a plurality of ridges and valleys disposed in both said predetermined region of greatest fiber weight and in said other predetermined regions, the density of said batt in said valleys being greater than the density of said batt in said ridges; the pattern of valleys in the predetermined region of greatest fiber weight being different than the pattern of valleys in the other predetermined regions such that the percentage of the area of said predetermined region of greatest fiber weight constituted by valleys is less than the percentage of the area of the other predetermined regions which is constituted by valleys.
Claim 2
Dependent Claim
165 words
An absorbent pad comprising an elongate, absorbent section of cellulosic fibers having opposed major surfaces, said absorbent section having predetermined regions of different fiber weight wherein the greatest weight of fibers is included in a predetermined region where it is most needed to retain body fluids; said absorbent section having an embossed pattern in at least one major surface thereof, said embossed pattern defining a plurality of ridges and valleys disposed in both said predetermined region of greatest fiber weight and in said other predetermined regions, the density of said batt in said valleys being greater than the density of said batt in said ridges; the pattern of valleys in the predetermined region of greatest fiber weight being different than the pattern of valleys in the other predetermined regions such that the percentage of the area of said predetermined region of greatest fiber weight constituted by valleys is less than the percentage of the area of the other predetermined regions which is constituted by valleys.
Claim 3
Dependent Claim
44 words
The absorbent pad according to claim 1, wherein said absorbent section comprises a fluff batt of cellulosic fibers having a transverse dimension defined between spaced, elongate side margins, at least a portion of said side margins being recessed to define a narrow crotch region.
Claim 4
Dependent Claim
24 words
The absorbent pad according to claim 2, wherein said predetermined regions are aligned with each other in the elongate direction of said fluff batt.
Claim 5
Dependent Claim
84 words
The absorbent pad according to claim 3, wherein said fluff batt has an elongate dimension defined between forward and rearward end margins; said fluff batt having a forward elongate region terminating at one end adjacent said forward end margin, a rearward elongate region terminating at one end adjacent said rearward end margin and a middle elongate region disposed between said forward and rearward regions; the weight of fibers in one of said forward and middle regions comprising the predetermined region of greatest fiber weight.
Claim 6
Dependent Claim
27 words
The absorbent pad according to claim 4, wherein at least some of said valleys bridge the predetermined region of greatest fiber weight with the regions adjacent thereto.
Claim 7
Dependent Claim
30 words
The absorbent pad according to claim 4, wherein the weight of fibers within each of said predetermined regions is substantially uniform over substantially the entire extent of said respective region.
Claim 8
Dependent Claim
35 words
The absorbent pad according to claim 6, wherein the elongate dimension of said forward, middle and rearward elongate regions is substantially the same, each comprising substantially one-third of the elongate dimension of said fluff batt.
Claim 9
Dependent Claim
36 words
The absorbent pad according to claim 4 adapted for use as an absorbent component in a throw-away diaper for use by a boy baby, wherein said forward region is the predetermined region of greatest fiber weight.
Claim 10
Dependent Claim
56 words
The absorbent pad according to claim 8, wherein the embossed pattern includes valleys comprising a first set of spaced, elongate channels extending substantially in the elongate direction of said batt and for substantially the entire elongate dimension of said rearward and middle regions of said batt and only partially into said forward region of said batt.
Claim 11
Dependent Claim
67 words
The absorbent pad according to claim 9, wherein the embossed pattern further includes valleys comprising substantially uniformly spaced compressed islands in said forward region, and valleys comprising a second set of spaced channels in said rearward and middle regions of said batt, each of said channels of said second set extending substantially transverse to the channels of said first set for directing fluids transversely along said batt.
Claim 12
Dependent Claim
36 words
The absorbent pad according to claim 4 adapted for use as an absorbent component in a throw-away diaper for use by a girl baby, wherein said middle region is the predetermined region of greatest fiber weight.
Claim 13
Dependent Claim
52 words
The absorbent pad according to claim 11, wherein the embossed pattern includes valleys comprising a first set of spaced, elongate channels extending substantially in the elongate direction of said fluff batt for substantially the entire elongate dimension of said rearward region and said forward region and only partially into said middle region.
Claim 14
Dependent Claim
67 words
The absorbent pad according to claim 12, wherein the embossed pattern further includes valleys comprising substantially uniformly spaced compressed islands in said middle region, and valleys comprising a second set of spaced channels in said rearward and forward regions of said batt, each of said channels of said second set extending substantially transverse to the channels of said first set for directing fluids transversely along said batt.
Claim 15
Dependent Claim
189 words
A throw-away diaper having an elongate, absorbent fluff batt of cellulosic fibers disposed within a covering envelope which has a fluid pervious facing layer, said absorbent batt having predetermined regions of differing fiber weight wherein the greatest weight of fibers is included in a predetermined region where it is most needed to retain body fluids; a first embossed pattern in said facing layer and said underlying absorbent batt, said embossed pattern defining a plurality of superimposed ridges and superimposed valleys in said facing layer and said underlying absorbent batt, said valleys being disposed in both said predetermined region of greatest fiber weight and in said other predetermined regions, the density of said batt in said valleys being greater than the density of said batt in said ridges; the pattern of valleys in the predetermined region of greatest fiber weight being different than the pattern of valleys in the order predetermined regions such that the percentage of the area of the predetermined region of greatest fiber weight which is constituted by valleys is less than the percentage of the area of the other predetermined regions which is constituted by valleys.
Claim 16
Dependent Claim
189 words
A throw-away diaper having an elongate, absorbent fluff batt of cellulosic fibers disposed within a covering envelope which has a fluid pervious facing layer, said absorbent batt having predetermined regions of differing fiber weight wherein the greatest weight of fibers is included in a predetermined region where it is most needed to retain body fluids; a first embossed pattern in said facing layer and said underlying absorbent batt, said embossed pattern defining a plurality of superimposed ridges and superimposed valleys in said facing layer and said underlying absorbent batt, said valleys being disposed in both said predetermined region of greatest fiber weight and in said other predetermined regions, the density of said batt in said valleys being greater than the density of said batt in said ridges; the pattern of valleys in the predetermined region of greatest fiber weight being different than the pattern of valleys in the order predetermined regions such that the percentage of the area of the predetermined region of greatest fiber weight which is constituted by valleys is less than the percentage of the area of the other predetermined regions which is constituted by valleys.
Claim 17
Dependent Claim
83 words
The throw-away diaper according to claim 14, wherein said absorbent batt has an elongate dimension defined between forward and rearward end margins, said batt having a forward elongate region terminating at one end adjacent said forward end margins, a rearward elongate region terminating at one end adjacent said rearward end margin and a middle elongate region disposed between said forward and rearward regions, the weight of fibers in one of said forward and middle regions comprising the predetermined region of greatest fiber weight.
Claim 18
Dependent Claim
25 words
a throw-away diaper according to claim 15 for use by a girl baby, wherein said middle region is the predetermined region of greatest fiber weight.
Claim 19
Dependent Claim
126 words
The throw-away diaper according to claim 16, wherein said facing layer is comprised of a sheet of randomly arranged, intermingled, short cellulosic fibers and longer reinforcing synthetic fibers, said sheet having a second embossed pattern in the outer surface thereof for enhancing the flexibility and fluid directing characteristics of said sheet, said second embossed pattern being defined by a plurality of ridges and valleys extending over substantially the entire surface of said sheet, the density of the sheet in said valleys of said second embossed pattern being greater than the density of said sheet in said ridges of said second embossed pattern; and an adhesive network interconnecting fibers of said sheet for enhancing the strength and abrasion resistance of said sheet without destroying the flexibility thereof.
Claim 20
Dependent Claim
54 words
The throw-away diaper according to claim 17, wherein the first embossed pattern includes valleys comprising a first set of spaced, elongate channels extending substantially in the elongate direction of said fluff batt and for substantially the entire elongate dimension of said rearward region and said forward region and only partially into said middle region.
Claim 21
Dependent Claim
70 words
The throw-away diaper according to claim 18, wherein the first embossed pattern includes valleys comprising substantially uniformly spaced compressed islands in said middle region, and valleys comprising a second set of spaced channels in said rearward and forward regions of said fluff batt, each of said channels of said second set extending substantially transverse to the channels of said first set of directing body fluids transversely along said fluff batt.
Claim 22
Dependent Claim
25 words
A throw-away diaper according to claim 15 for use by a boy baby, wherein said forward region is the predetermined region of greatest fiber weight.
Claim 23
Dependent Claim
125 words
The throw-away diaper according to claim 20, wherein said facing layer is comprised of a sheet of randomly arranged, intermingled short cellulosic fibers and longer reinforcing synthetic fibers, said sheet having a second embossed pattern in the outer surface thereof for enhancing the flexibility and fluid directing characteristics of said sheet, said second embossed pattern being defined by a plurality of ridges and valleys extending over substantially the entire surface of said sheet, the density of the sheet in said valleys of said second embossed pattern being greater than the density of said sheet in said ridges of said second embossed pattern; and an adhesive network interconnecting fibers of said sheet for enhancing the strength and abrasion resistance of said without destroying the flexibility thereof.
Claim 24
Dependent Claim
54 words
The throw-away diaper according to claim 21, wherein the first embossed pattern includes valleys comprising a first set of spaced, elongate channels extending substantially in the elongate direction of said fluff batt and for substantially the entire elongate dimension of said rearward region and said middle region and only partially into said forward region.
Claim 25
Dependent Claim
70 words
The throw-away diaper according to claim 22, wherein the first embossed pattern includes valleys comprising substantially uniformly spaced compressed islands in said forward region, and valleys comprising a second set of spaced channels in said rearward and middle regions of said fluff batt, each of said channels of said second set extending substantially transverse to the channels of said first set for directing body fluids transversely along said fluff batt.
Claim 26
Dependent Claim
54 words
The throw-away diaper according to claim 20, wherein the first embossed pattern includes valleys comprising a first set of spaced, elongate channels extending substantially in the elongate direction of said fluff batt and for substantially the entire elongate dimension of said rearward region and said middle region and only partially into said forward region.
Claim 27
Dependent Claim
70 words
A throw-away diaper according to claim 24, wherein the first embossed pattern includes valleys comprising substantially uniformly spaced compressed islands in said forward region, and valleys comprising a second set of spaced channels in said rearward and middle regions of said fluff batt, each of said channels of said second set extending substantially transverse to the channels of said first set for directing body fluids transversely along said fluff batt.
Claim 28
Dependent Claim
54 words
the throw-away diaper according to claim 16, wherein the first embossed pattern includes valleys comprising a first set of spaced, elongate channels extending substantially in the elongate direction of said fluff batt and for substantially the entire elongate dimension of said rearward region and said forward region and only partially into said middle region.
Claim 29
Dependent Claim
69 words
The throw-away diaper according to claim 26, wherein the first embossed pattern includes valleys comprising substantially uniformly spaced compressed islands in said middle regioN, and valleys comprising a second set of spaced channels in said rearward and forward regions of said fluff batt, each of said channels of said second set extending substantially transverse to the channels of said first for directing body fluids transversely along said fluff batt.
Claim 30
Dependent Claim
181 words
A throw-away diaper for use by a boy baby comprising an absorbent pad disposed within a covering envelope which has a fluid pervious facing layer; said absorbent pad comprising a main absorbent member and a secondary absorbent member, said main absorbent member having an elongate dimension defined between spaced forward and rearward margins, said covering envelope extending beyond the forward margin of said main absorbent member to define a forward marginal region, said secondary absorbent member being disposed in said forward marginal region within said covering envelope, said secondary absorbent member being separated from said main absorbent member by a transversely extending region having lower bulk than the transverse regions of said diaper which include said main and secondary absorbent members wherein said transverse region of lower bulk defines a transverse fold line region along which the forward marginal region can be infolded to superimpose said secondary absorbent member over said main absorbent member to increase the absorptive capacity in the superimposed region and to provide a physical impediment to the escape of urine through the forward end of the diaper.
Claim 31
Dependent Claim
181 words
A throw-away diaper for use by a boy baby comprising an absorbent pad disposed within a covering envelope which has a fluid pervious facing layer; said absorbent pad comprising a main absorbent member and a secondary absorbent member, said main absorbent member having an elongate dimension defined between spaced forward and rearward margins, said covering envelope extending beyond the forward margin of said main absorbent member to define a forward marginal region, said secondary absorbent member being disposed in said forward marginal region within said covering envelope, said secondary absorbent member being separated from said main absorbent member by a transversely extending region having lower bulk than the transverse regions of said diaper which include said main and secondary absorbent members wherein said transverse region of lower bulk defines a transverse fold line region along which the forward marginal region can be infolded to superimpose said secondary absorbent member over said main absorbent member to increase the absorptive capacity in the superimposed region and to provide a physical impediment to the escape of urine through the forward end of the diaper.
Claim 32
Dependent Claim
23 words
the throw-away diaper according to claim 28, wherein said main absorbent member and said secondary absorbent member comprise fluff batts of cellulosic fibers.
Claim 33
Dependent Claim
48 words
The throw-away diaper according to claim 29, said main and secondary fluff batts being defined by separate fluff batts of cellulosic fibers, said secondary fluff batt being spaced forwardly of said main fluff batt to define the transverse fold line region between said main and secondary fluff batts.
Claim 34
Dependent Claim
54 words
The throw-away diaper according to claim 29, said main fluff batt and said secondary fluff batt being defined in a unitary fluff batt of cellulosic fibers and being separated from each other by a transversely extending compressed zone in said unitary fluff batt, said transversely extending compressed zone defining said transverse fold line region.
Claim 35
Dependent Claim
71 words
The throw-away diaper according to claim 29, wherein said main fluff batt has a forward elongate region terminating at one end adjacent said forward margin, a rearward elongate region terminating at one end adjacent said rearward margin and a middle elongate region disposed between said forward and rearward regions, the weight of fibers in said forward region being greater than the weight of fibers in the other two of said regions.
Claim 36
Dependent Claim
61 words
The throw-away diaper according to claim 32, wherein said covering envelope includes a backing layer and a facing layer, said facing and backing layer each comprising an elongate sheet having side margins extending beyond side margins of the main and secondary fluff batts and secured to each other in the regions which extend beyond said side margins of said fluff batts.
Claim 37
Dependent Claim
61 words
The throw-away diaper according to claim 33 further comprising a first embossed pattern defining a plurality of superimposed ridges and superimposed valleys in said facing layer and in said forward, rearward and middle elongate regions of said main fluff batt, the density of said fluff batt in said valleys being greater than the density of said fluff batt in said ridges.
Claim 38
Dependent Claim
123 words
The throw-away diaper according to claim 34, wherein said facing sheet is comprised of randomly arranged, intermingled, short cellulosic fibers and longer reinforcing synthetic fibers, said facing sheet having a second embossed pattern in the outer surface thereof for enhancing the flexibility and fluid-directing characteristics of said sheet, said second embossed pattern being defined by a plurality of ridges and valleys extending over substantially the entire surface of said sheet, the density of the sheet in said valleYs of said second embossed pattern being greater than the density of said sheet in said ridges of said second embossed pattern; and an adhesive network interconnecting fibers of said sheet for enhancing the strength and abrasion resistance of said sheet without destroying the flexibility thereof.
Claim 39
Dependent Claim
105 words
The throw-away diaper according to claim 35, wherein the ratio of the area of the valleys of said first embossed pattern in the forward region of the main fluff batt to the total area of said forward region is less than the ratio of the area of the valleys of said first embossed pattern in the middle region of the main fluff batt to the total area of said middle region, and is less than the ratio of the area of the valleys of said first embossed pattern in the rearward region of the main fluff batt to the total area of said rearward region.
Claim 40
Dependent Claim
52 words
The throw-away diaper according to claim 35, wherein the first embossed pattern includes valleys comprising a first set of spaced, elongate channels extending substantially in the elongate direction of said fluff batt and for substantially the entire elongate dimension of said rearward and middle regions and only partially into said forward region.
Claim 41
Dependent Claim
72 words
The throw-away diaper according to claim 37, wherein the first embossed pattern includes valleys comprising substantially uniformly spaced compressed islands in said forward region, and valleys comprising a second set of spaced channels in said rearward and middle regions of said main fluff batt, each of said channels of said second set extending substantially transverse to the channels of said first set for directing body fluids transversely along said main fluff batt.
Claim 42
Dependent Claim
28 words
The throw-away diaper according to claim 38, wherein the first and second set of spaced, elongate channels are impressed into the facing layer and underlying secondary fluff batt.
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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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |