IP Library Granted Patent US 11,969,326
Granted Patent B2
US 11,969,326 · App. 16/740,125 · Granted Apr 30, 2024

Multilayer bladder control pad

Inventor: Amanda Roszkowiak (Chicago, IL)
Assignee: Medline Industries, LP
A61F13/53A61F13/47A61F13/51478A61F2013/530481A61F2013/53089A61F2013/53908
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Quick Facts
Patent No.
US 11,969,326
App. No.
16/740,125
Granted
Apr 30, 2024
Kind
B2
Abstract

The absorbent pad has a first layer, a second layer, and a third layer. Each layer of the pad has a liquid impervious back sheet. The backsheet or outer layer, which faces away from the wearer when the absorbent article is secured to the wearer, is composed of a moisture-impervious, flexible material. Further, each layer has a moisture pervious inner layer and an absorbent core positioned in between the inner layer and back sheet. The layers are coupled to each other via an adhesive. They can be removed by grasping a tab placed on each layer and pulling the layer away from the unsoiled layers.

Claims (50)

1. An absorbent article comprising:

a first layer comprising:

a first periphery;

a first liquid impervious backsheet;

a first absorbent core positioned adjacent the backsheet and proximal the wearer; and

a first moisture pervious topsheet;

a second layer comprising:

a second periphery;

a second liquid impervious backsheet;

a second absorbent core positioned adjacent the backsheet and proximal the wearer;

a second moisture pervious topsheet; and

a second-layer tab coupled to and protruding from a peripheral edge of the second layer and extending beyond the second periphery; and

a third layer comprising:

a third periphery;

a third liquid impervious backsheet;

a third absorbent core positioned adjacent the backsheet and proximal the wearer;

a third moisture pervious topsheet; and

a third-layer tab coupled to and protruding from a peripheral edge of the third layer;

wherein the second layer is removably adhered to the first layer such that the second backsheet contacts the first topsheet;

wherein the third layer is removably adhered to the second layer such that the third backsheet contacts the second topsheet;

wherein the second periphery is positioned within and spaced apart from the first periphery for the entirety of the first periphery;

wherein the third periphery is positioned within and spaced apart from the second periphery for the entirety of the second periphery; and

wherein the third-layer tab is spaced a distance away from the second-layer tab.

2. The absorbent article of claim 1 , wherein the second layer is removably adhered to the first layer at least in part by an adhesive positioned between the second layer and the first layer.

3. The absorbent article of claim 2 , wherein the adhesive comprises a first pattern of adhesive dots positioned on the second backsheet in an area adjacent to a periphery of the second backsheet.

4. The absorbent article of claim 3 , wherein the adhesive further comprises a second pattern of adhesive dots that extends over substantially all of a central area of the second backsheet.

5. The absorbent article of claim 4 , wherein the second pattern differs from the first pattern.

6. The absorbent article of claim 2 , wherein the adhesive extends across a peripheral area of the second backsheet and does not extend across a central area of the second backsheet.

7. The absorbent article of claim 6 , wherein the adhesive comprises a pattern of spaced adhesive dots positioned uniformly and completely around a perimeter of the second backsheet.

8. The absorbent article of claim 1 , wherein the second layer is removably adhered to the first layer at least in part by an ultrasonic weld.

9. The absorbent article of claim 1 , wherein the second layer is removably adhered to the first layer at least in part by hook and loop.

10. The absorbent article of claim 1 , wherein each absorbent core comprises a super absorbent polymer.

11. The absorbent article of claim 1 , wherein the absorbent core comprises an embossed top and an embossed bottom.

12. The absorbent article of claim 1 , further comprising a release liner coupled to an outside surface of the first backsheet.

13. The absorbent article of claim 12 , wherein the release liner is coupled to the outside surface of the first backsheet via an adhesive in a plurality of spaced apart bonding sites.

14. The absorbent article of claim 1 , wherein the second layer has a generally hour-glass shape.

15. An absorbent article comprising:

a first layer, a second layer, and a third layer; wherein an outside surface of the third layer is coupled to an inside surface of the second layer and an outside surface of the second layer is coupled to an inside surface of the first layer;

wherein the first layer, the second layer, and the third layer each comprise:

an absorbent core positioned in between a liquid impervious back sheet and a moisture pervious inner layer; and

an adhesive;

wherein the adhesive is positioned on the outside surface of the second layer and on the outside surface of the third layer;

wherein a second-layer tab is coupled to an edge of each of the second layer and a third-layer tab is coupled to an edge of the third layer;

wherein the third-layer tab is spaced a distance away from the second-layer tab; and

wherein the third layer is nested into the second layer such that a periphery of the third layer is spaced inwardly from a periphery of the second layer around the entire second layer periphery and the second layer is nested into the first layer such that the periphery of the second layer is spaced inwardly from a periphery of the first layer around the entire first layer periphery.

16. The absorbent article of claim 15 further comprising a release liner coupled to the first layer.

17. The absorbent article of claim 15 , wherein the absorbent core comprises an embossed top and an embossed bottom.

18. The absorbent article of claim 15 , wherein the adhesive is positioned around a perimeter of the second layer and around a perimeter of the third layer.

19. The absorbent article of claim 15 , wherein the adhesive comprises a pattern of adhesive dots positioned uniformly and completely around a perimeter of the second layer and around a perimeter of the third layer.

20. The absorbent article of claim 15 , wherein the absorbent article is a disposable incontinence pad.

Assignments (8)
PATENT SECURITY AGREEMENT Recorded May 28, 2026
From: MEDLINE INDUSTRIES, LP
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT
Reel/Frame 075643/0462 →
PATENT SECURITY AGREEMENT Recorded Jun 20, 2025
From: MEDLINE INDUSTRIES, LP
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT
Reel/Frame 071672/0100 →
SECURITY INTEREST Recorded Apr 2, 2024
From: MEDLINE INDUSTRIES, LP
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT
Reel/Frame 066971/0808 →
CORRECTIVE ASSIGNMENT TO CORRECT THE THE APPLICATION NUMBER PREVIOUSLY RECORDED AT REEL: 057787 FRAME: 0814. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Mar 1, 2022
From: MEDLINE INDUSTRIES, INC.
To: MEDLINE INDUSTRIES, LP
Reel/Frame 059277/0151 →
SECURITY INTEREST Recorded Oct 21, 2021
From: MEDLINE INDUSTRIES, LP
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 057927/0091 →
SECURITY INTEREST Recorded Oct 21, 2021
From: MEDLINE INDUSTRIES, LP
To: BANK OF AMERICA, N.A.
Reel/Frame 058040/0001 →
CHANGE OF NAME Recorded Oct 12, 2021
From: MEDLINE INDUSTRIES, INC.
To: MEDLINE INDUSTRIES, LP
Reel/Frame 057787/0814 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 10, 2020
From: ROSZKOWIAK, AMANDA
To: MEDLINE INDUSTRIES, INC.
Reel/Frame 051482/0612 →