Form retentive absorbent pads

• US 5,429,633 A
• Filed: 09/23/1992
• Issued: 07/04/1995
• Est. Priority Date: 07/06/1990
• Status: Expired due to Term

• Current Assignee: McNeil-PPC Incorporated (Johnson & Johnson)
• Original Assignee: McNeil-PPC Incorporated (Johnson & Johnson)
• Inventors: Gerth, Jeannie, Moore, Patricia A., Formosa, Daniel, Russak, Stephen, Davis, Martha, Thomsen, Tamara, Viemeister, Tucker
• Primary Examiner(s): Green, Randall L.
• Assistant Examiner(s): CLARKE, ROBERT A
• Application Number:
  US07/949,751
• Time in Patent Office: 1,014 Days
• Field of Search: 604/385.1, 604/387, 604/393, 604/395, 604/398, 604/400, 604/402, 604/366-374
• US Class Current: 604/387
• CPC Class Codes: A61F 13/47272 with a longitudinal raised end, e.g. cup-shaped gluteal groove for edge leakage prevention A61F13/494
• CPC Class Codes: A61F 13/476 characterised by encircling the crotch region of the undergarment
• CPC Class Codes: A61F 13/5616 using flaps, e.g. adhesive, for attachment to the undergarment leakage prevention means encirculing the crotch portion A61F13/476
• CPC Class Codes: A61F 2013/49084 conformable

Abstract

Form retentive absorbent pads are disclosed which comprise fluid absorbent material and at least one bendable element which can be deformed by the user and which will retain its shape during use. The preferred embodiments, the bendable element provides at least a degree of conformation in the critical central area of the pad, most preferably at least in the longitudinal (y axis) direction. Conformability created in this area allows the user of the pad to mold the pad to the body to maximize comfort and fluid absorption. Preferred embodiments include bendable elements which form winglets which are bent around the edges of the undergarment to hold the pad in place during use.

Claims

1. An absorbent feminine absorbent product comprising:

an elongate pad having a longitudinal axis and a transverse axis, a body facing side and an undergarment facing side, and defining longitudinal edges, said pad comprising fluid absorbent material; and

bendable means comprising a strap of bendable material extending transversely across a central portion of said pad and a plurality of winglets extending beyond the transverse edges of said pad, the shape of said strap being double concave in the direction transverse of the pad, said bendable material being capable of being manipulated into a desired conformation and tending to retain that conformation, said winglets shaped so that they are generally convex in relation to the pad and bendable around the edges of an undergarment to hold said product in place in the undergarment during use, said bendable means being attached to said pad such that said bendable means can be bent by a user for changing the shape of the pad when so bent at least along the longitudinal axis of the pad, said bendable means when bent remaining in said bent position during use without the use of extrinsic mechanisms.

15. The product of claim 1, wherein said at least one of said axes along which said concave curvature is imparted to at least said body facing side is said transverse axis.

16. The product of claim 1, wherein said bendable means is bent so as to impart a concave curvature to at least said body facing side of said pad along both said longitudinal axis and said transverse axis.

18. The absorbent product according to claim 1, wherein said means for attaching said strap to said pad comprises bonding said strap to said undergarment facing side.

19. The absorbent product according to claim 18, wherein said strap is bonded to said undergarment facing side by heat sealing.

20. The absorbent product according to claim 18, wherein said strap is bonded to said undergarment facing side by adhesive.

21. The absorbent product according to claim 1, wherein said strap has a surface conforming to said shape into which said strap is bent, and wherein said means for attaching said strap to said pad comprises attaching said strap to said pad across substantially the entirety of said surface.

22. The absorbent product according to claim 1, wherein said shape of said strap imparts a concave curvature to at least said body facing side of said pad along both said longitudinal and transverse axis.

23. The absorbent product according to claim 1, wherein said shape into which said strap is bent comprises a concave curvature along first and second perpendicular directions.

2. An absorbent feminine absorbent product comprising:

an elongate pad having a longitudinal axis and a transverse axis, a body facing side and an undergarment facing side, and defining longitudinal edges, said pad comprising fluid absorbent material;

bendable means attached to said pad comprising a material which may be manipulated into a desired conformation and which tends to retain that conformation, such that said bendable means a are bendable to impart a concave curvature to at least said body facing side of said pad along at least one of said axes, thereby causing at least said body facing side of said pad to retain said concave curvature during use without the use of extrinsic mechanisms; and

a plurality of winglets extending beyond the transverse edges of said pad;

wherein said bendable means comprises a strap of bendable material extending transversely across a central portion of said pad and said plurality of winglets, said winglets being bendable around the edges of an undergarment to hold said product in place in the undergarment during use.

3. The product of claim 2, wherein said winglets are shaped such that they are generally convex in relation to the pad.

4. The product of claim 2, wherein said bendable means forms bent edges extending substantiality parallel to said longitudinal axis of said pad when said winglets are bent around edges of an undergarment and wherein said pad further comprises a cover, said cover extending over at least a portion of said bendable means so as to extend over said bent longitudinal edges of said bendable means when said winglets are bent around edges of an undergarment.

5. The product of claim 2, wherein said bendable means comprises a strap of metallic foil.

6. The product of claim 2 wherein said bendable means is embedded within said pad.

7. The product of claim 6 wherein said bendable means comprises a longitudinal element embedded within said pad.

8. The product of claim 7, wherein said bendable means comprises at least one wire stay.

9. The product of claim 8 wherein said wire stay comprises a wire encased in a protective sheath.

10. The product of claim 2 wherein said bendable means comprises a plurality of bendable element attached along each longitudinal edge of said pad, defining a plurality of bendable winglets disposed along each longitudinal edge of said pad, said winglets being sized for bending over the edges of the undergarment when the pad is in use.

11. The invention of claim 10, wherein said bendable elements are generally scalloped shaped to define fingers of attachment of said bendable elements to said pad.

12. The invention of claim 2, further comprising adhesive means for attaching the bendable means to said pad.

13. The product of claim 2 wherein said bendable means comprises a malleable material.

14. The product of claim 2, wherein said at least one of said axes along which said concave curvature is imparted to at least said body facing side is said longitudinal axis.

17. The product of claim 2, wherein said bendable means is attached to said garment facing side of said pad.