US4770657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-dimensional shaped feminine pad with absorbent in the elasticized edges
Assignee: Armco Inc
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Filing: 1986-05-28
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Granted: 1988-09-13
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Expires: 2006-05-28
Abstract
Abstract The invention is generally accomplished by providing a curved elongated absorbent pad for absorption of bodily excretions comprising a liquid-impermeable backing member, an upper reinforcing absorbent member, a reservoir absorbent member, and liquid-permeable body-side member. The upper reinforcing absorbent member is provided as a sheet below the permeable cover and extends substantially coextensively with the backing member at the edges of said pad. The lower absorbent reservoir member is shaped generally in a manner as to have an hourglass or dog-bone shape that provides a narrower middle portion of soft absorbent material. The middle portion of the lower absorbent, also in the preferred embodiment, is somewhat thicker than the reservoir absorbent portions at the ends of the pad. The pad is provided with upstanding side portions in the middle of each long edge in the area where the lower soft absorbent is narrower. The upper reinforcing absorbent sheet extends into the side edges. The preferred feminine pad further is curved so as to generally conform to the pudendum in the front and extend to about the area of the anus in the rear.
Inventors
- 👤 Louise C. Ellis
- 👤 Julie T. Basten
- 👤 Allan J. Krueger
- 👤 Russell L. Nowak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:43
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/47; A61F13/475; A61F13/4751; A61F13/4752; A61F13/51; A61F13/514; A61F13/51401; A61F2013/51409; A61F13/53; A61F13/534; A61F2013/53445; A61F13/539; A61F2013/5395
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
174 words
An elongated catamenial or mild incontinence pad curved to the body shape having relatively long sides and narrowed ends for absorption of bodily excretions comprising a liquid-impermeable backing member, a reservoir lower absorbent inner member, liquid-permeable body-side member and a layer of reinforcing absorbent means immediately beneath said body-side member functioning to prevent bunching and twisting when said pad is worn, wherein said lower reservoir absorbent has a narrow center portion shape, said backing member, said body-side member and said reinforcing absorbent extend beyond said reservoir absorbent and have side edges forming flaps in the areas where the narrow portion of the soft lower absorbent does not overlay said backing, said flaps being gathered thereby raising said flaps to form an absorbent wall on each side of the narrower portion of said reservoir absorbent wherein the gathering of said flaps to form said walls is by elastic contraction, said reinforcing absorbent extends into said flaps and covers said elastic, and said reinforcing layer has a Gurley stiffness of between about 1,000 and 1,300 mg.
Claim 2
Dependent Claim
174 words
An elongated catamenial or mild incontinence pad curved to the body shape having relatively long sides and narrowed ends for absorption of bodily excretions comprising a liquid-impermeable backing member, a reservoir lower absorbent inner member, liquid-permeable body-side member and a layer of reinforcing absorbent means immediately beneath said body-side member functioning to prevent bunching and twisting when said pad is worn, wherein said lower reservoir absorbent has a narrow center portion shape, said backing member, said body-side member and said reinforcing absorbent extend beyond said reservoir absorbent and have side edges forming flaps in the areas where the narrow portion of the soft lower absorbent does not overlay said backing, said flaps being gathered thereby raising said flaps to form an absorbent wall on each side of the narrower portion of said reservoir absorbent wherein the gathering of said flaps to form said walls is by elastic contraction, said reinforcing absorbent extends into said flaps and covers said elastic, and said reinforcing layer has a Gurley stiffness of between about 1,000 and 1,300 mg.
Claim 3
Dependent Claim
23 words
The pad of claim 1 wherein said backing is adhered to said liner in the area of said liner adjacent said reservoir absorbent.
Claim 4
Dependent Claim
23 words
The pad of claim 1 wherein the distance between said walls is about the width of the widest part of said lower absorbent.
Claim 5
Dependent Claim
39 words
The pad of claim 1 wherein said absorbent in the center of said pad extends up to about the height of said walls and wherein said absorbent is thicker in the middle of said pad than at the ends.
Claim 6
Dependent Claim
20 words
The pad of claim 1 wherein said impermeable layer is a composite of a fibrous web and a polymer film.
Claim 7
Dependent Claim
14 words
The pad of claim 1 wherein said elastic is generally coextensive with the wall.
Claim 8
Dependent Claim
31 words
The pad of claim 2 wherein said liner and said impermeable backing extend beyond the area where they are adhered to form a soft fringe at the ends of said pad.
Claim 9
Dependent Claim
13 words
The pad of claim 1 wherein said lower absorbent has an hourglass shape.
Claim 10
Dependent Claim
13 words
The pad of claim 1 wherein said reinforcing absorbent has a dog-bone shape.
Claim 11
Dependent Claim
9 words
The pad of claim 1 comprising a feminine pad.
Claim 12
Dependent Claim
9 words
The pad of claim 1 comprising an incontinent pad.
Claim 13
Dependent Claim
26 words
The pad of claim 1 wherein the flap of said body-side member is generally coextensive with the flap of said backing member in the wall area.
Claim 14
Dependent Claim
13 words
The pad of claim 1 wherein the elasticized side edges are generally parallel.
Claim 15
Dependent Claim
25 words
The pad of claim 1 wherein said flaps extend upward from about the middle of vertical height of the thickest portion of said reservoir absorbent.
Claim 16
Dependent Claim
16 words
The pad of claim 1 wherein said elastic extends to the outer edge of said wall.
Claim 17
Dependent Claim
18 words
The pad of claim 1 wherein said reinforcing absorbent extends into said wall area and covers said elastic.
Claim 18
Dependent Claim
14 words
The pad of claim 1 wherein said liquid-impermeable backing member comprises a foam sheet.
Claim 19
Dependent Claim
25 words
The pad of claim 1 wherein said backing member, reinforcing absorbent, body-side member and said elastic are sealed together at discontinuous areas of said walls.
Claim 20
Dependent Claim
15 words
The pad of claim 18 wherein the seal areas comprise two discontinuous ultrasonic sealing lines.
Claim 21
Dependent Claim
13 words
The pad of claim 1 wherein said reinforcing absorbent has an hourglass shape.
Claim 22
Dependent Claim
142 words
An elongated catamenial or mild incontinence pad curved to the body shape having relatively long gathered sides and narrowed ends for absorption of bodily excretions comprising a liquid-impermeable backing member, a reservoir lower absorbent inner member, liquid-permeable body-side member and a layer of reinforcing absorbent means functioning to prevent bunching and twisting when said pad is worn immediately beneath said body-side member, wherein said lower reservoir absorbent has a narrow portion shape, said backing member, said body-side member and said reinforcing absorbent extend beyond said reservoir absorbent and have side edges forming flaps in the areas where the narrower portion of the soft lower absorbent does not overlay said backing, said flaps being gathered thereby raising said flaps to form an absorbent wall wherein the edges are gathered by heat shrinkage of a generally inelastic polymer film to form generally inelastic edges.
Claim 23
Dependent Claim
142 words
An elongated catamenial or mild incontinence pad curved to the body shape having relatively long gathered sides and narrowed ends for absorption of bodily excretions comprising a liquid-impermeable backing member, a reservoir lower absorbent inner member, liquid-permeable body-side member and a layer of reinforcing absorbent means functioning to prevent bunching and twisting when said pad is worn immediately beneath said body-side member, wherein said lower reservoir absorbent has a narrow portion shape, said backing member, said body-side member and said reinforcing absorbent extend beyond said reservoir absorbent and have side edges forming flaps in the areas where the narrower portion of the soft lower absorbent does not overlay said backing, said flaps being gathered thereby raising said flaps to form an absorbent wall wherein the edges are gathered by heat shrinkage of a generally inelastic polymer film to form generally inelastic edges.
Claim 24
Dependent Claim
23 words
The pad of claim 21 wherein said absorbent in the center of said pad extends up to about the height of said walls.
Claim 25
Dependent Claim
15 words
The pad of claim 21 wherein said inelastic film is generally coextensive with the wall.
Claim 26
Dependent Claim
9 words
The pad of claim 21 comprising a feminine pad.
Claim 27
Dependent Claim
9 words
The pad of claim 21 comprising an incontinent pad.
Claim 28
Dependent Claim
42 words
The pad of claim 21 wherein the flap of said body-side member is generally coextensive with the flap of said backing member in the wall area and wherein said inelastic film is generally coextensive with said backing member in said wall area.
Claim 29
Dependent Claim
22 words
The pad of claim 21 wherein said reinforcing absorbent layer has a Gurley stiffness of between about 1,000 and about 1,300 mg.
Claim 30
Dependent Claim
17 words
The pad of claim 1 wherein said reinforcing absorbent is embossed to create channels for fluid distribution.
Claim 31
Dependent Claim
17 words
The pad of claim 21 wherein said reinforcing absorbent is embossed to create channels for fluid distribution.
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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) | 1991-09-13 | 1992-03-14 | 1992-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-13 | 1996-03-14 | 1996-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-13 | 2000-03-14 | 2000-09-13 | $7700.00 | Window Closed / Lapsed |