Sanitary napkin with bendable means to shape and retain the sanitary napkin

• US 5,098,422 A
• Filed: 07/06/1990
• Issued: 03/24/1992
• 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: Moore, Patricia A., Formosa, Daniel, Russak, Stephen, Davis, Martha, Gerth, Jeannie, Thomsen, Tamara, Viemeister, Tucker
• Primary Examiner(s): Shay, Randy C.
• Assistant Examiner(s): Gualtieri, Gina
• Application Number:
  US07/549,335
• Time in Patent Office: 627 Days
• Field of Search: 604/385.1, 604/386, 604/387, 604/393, 604/395, 604/398, 604/400, 604/402
• US Class Current: 604/385.04
• CPC Class Codes: A61F 13/5605 specially adapted for sanitary napkins or the like
• CPC Class Codes: A61F 13/5611 using fastening strips, e.g. adhesive, on the undergarment-facing side
• CPC Class Codes: A61F 2013/15016 for breast; pads for bras

Abstract

Absorbent products for absorbing body fluids which are worn in conjunction with an undergarment are disclosed. The absorbent product comprises an absorbent core having a body facing surface, a garment facing surface and longitudinal edges. The absorbent products of the present invention utilize semi-rigid clip means for retaining the absorbent product with respect to the undergarment. Most preferably, such clip means are disposed on the garment facing surface and approximately at each lateral edge of the absorbent core. Twisting and other undesirable movement of the pad is thus reduced by a portion of the undergarment being retained between the semi-rigid clip means and the garment facing surface. Numerous alternate embodiments of clip means which grip the garment edge, as well as those which extend transversely across the garment facing surface are disclosed.

Claims

1. An absorbent product for absorbing body fluids which is worn in conjunction with an undergarment, the absorbent product comprising:

(a) an absorbent core having a body facing surface, a garment facing surface and longitudinal edges, said absorbent core having a longitudinal centerline; and

(b) semi-rigid clip means for retaining the absorbent product with respect to an undergarment, the semi-rigid clip means being disposed on the garment facing surface at or near each longitudinal edge of the absorbent core, whereby a portion of the undergarment can be retained between the semi-rigid means and the garment facing surface.

2. The absorbent product of claim 1, further comprising a laterally extending reinforcing strap means comprised of a section of material having greater rigidity than the absorbent core, disposed on the garment facing surface and extending laterally between the semi-rigid clip means.

3. The absorbent product of claim 2, wherein the laterally extending reinforcing strap means is affixed to the semi-rigid clip means.

4. The absorbent product of claim 2, wherein the laterally extending reinforcing strap means is integral with the semi-rigid clip means.

5. The absorbent product of claim 2, wherein the laterally extending reinforcing strap means extends along each longitudinal edge beyond the semi-rigid clip means.

6. The absorbent product of claim 5, wherein the laterally extending reinforcing strap means further comprises at least one slit in each portion extending along the longitudinal edges.

7. The absorbent product of claim 6, wherein the laterally extending reinforcing strap means is integral with the portions extending longitudinally along the lateral edges, each longitudinally extending portion being connected to a transversely opposite portion by a portion having a substantially convex arcuate shape.

8. The absorbent product of claim 6, further comprising regions of increased flexibility relative to the remainder of the reinforcing strap means formed at the juncture of the slit, whereby when the absorbent product is worn against the body, at least a portion of the absorbent core forms a curve about the longitudinal axis of the absorbent core.

9. The absorbent product of claim 8, further comprising at least one further region of reduce bending strength formed in the laterally extending reinforcing strap means, the region being substantially along the longitudinal centerline of the absorbent core.

10. The absorbent product of claim 1, wherein the semi-rigid clip means comprises an offset arcuate clip said arcuate clip being offset from the plane of the garment facing surface of the product, comprised of a continuous section of semi-rigid material folded along a non-symmetric axis thereby defining a larger surface area portion and a smaller surface area portion, whereby the portion of smaller surface area is not offset from the plane of the garment facing surface of the product and is affixed to the garment facing surface of the absorbent product.

11. The absorbent product of claim 10, further comprising a laterally extending reinforcing strap means comprised of a section of material having greater rigidity than the absorbent core, disposed on the garment facing surface in substantially the same location as and extending laterally between the semi-rigid clip means.

12. The absorbent product of claim 1, wherein the semi-rigid clip means comprises a semicircular clip formed from a single piece of material, comprising an outer clip portion and an inner portion, the inner portion affixed to the garment facing surface of the absorbent product.

13. The absorbent product of claim 12 wherein the offset is formed between the outer clip portion and an inner portion, whereby the outer and inner portions are displaced into offset parallel planes.

14. The absorbent product of claim 12, further comprising a laterally extending reinforcing strap means comprised of a section of material having greater rigidity than the absorbent core, disposed on the garment facing surface in substantially the same location as and extending laterally between the semi-rigid clip means.

15. The absorbent product of claim 1, wherein the semi-rigid clip means comprises oval clip portions, a longitudinal edge of one of the oval clip portions affixed to each of the lateral edges of the absorbent product.

16. The absorbent product of claim 15, further comprising a laterally extending reinforcing strap means comprised of a section of material having greater rigidity than the absorbent core, disposed on the garment facing surface in substantially the same location as and extending laterally between the semi-rigid clip means.

17. The absorbent product of claim 16, wherein the clips extend toward the longitudinal centerline of the absorbent product and an annular opening is created in one of the clips;

and a post affixed to the garment facing surface of the transverse strap, whereby the annular opening receives the post when the absorbent product is placed against the garment surface and the clips are placed on the opposite side of the garment, such that when compressed together the annular opening and the post retain a portion of the garment to which the absorbent product is attached.

18. The absorbent product of claim 1, wherein the semi-rigid clip means comprises offset arcuate clips, said arcuate clips being offset from the plane of the garment facing surface of the product a first portion of an arcuate clip shape affixed near each lateral edge of the absorbent product and a second arcuate offset portion extending inwardly toward the longitudinal centerline of the absorbent product.

19. The absorbent product of claim 18 wherein a central portion of the semi-rigid clip means has been removed to create an arcuate opening.

20. The absorbent product of claim 1, wherein the semi-rigid clip means is comprised of a base portion and at least two transversely extending flexible fingers the base portion affixed to the garment facing surface of the absorbent product, and the flexible fingers overlying the garment facing surface of the absorbent product, whereby the material of the undergarment is adapted to be interposed between the base portion and the fingers.

21. The absorbent product of claim 20, wherein the fingers extend inwardly from the longitudinal edge and overlie at least about 10% of the transverse width of the absorbent product.

22. The absorbent product of claim 20, wherein the fingers extend inwardly from the longitudinal edge and each finger overlies at least about 40% of the transverse width of the absorbent product.

23. The absorbent product of claim 1, wherein the semi-rigid clip means is comprised of semicircular clip means and further comprising snap portions extending from the semicircular clip means which overlap in the vicinity of the longitudinal centerline of the absorbent product, the snap portions being engageable to connect each of the clip means, thereby forming a structure which extends across the transverse width of the absorbent product, the undergarment being disposed beneath the semicircular clip means.

24. The absorbent product of claim 22, further comprising a laterally extending reinforcing strap means comprised of a section of material having greater rigidity than the absorbent core, adapted to be disposed on the garment facing surface and extending laterally between the semi-rigid clip means.

25. The absorbent product of claim 1, wherein the absorbent product is a sanitary napkin.

26. The absorbent product of claim 1, wherein the absorbent product is a panty shield.

27. The absorbent product of claim 1 wherein the absorbent product is an incontinence pad.

28. The absorbent product of claim 1 wherein the absorbent product is a nursing pad.

29. The absorbent product of claim 1 wherein the absorbent product is a diaper.

30. In an absorbent product for absorbing body fluids which is worn in conjunction with an undergarment, the absorbent product comprising an absorbent core having a body facing surface, a garment facing surface and longitudinal edges, the improvement comprising semi-rigid clip means for retaining the absorbent product with respect to an undergarment disposed on the garment facing surface at or near each longitudinal edge of the absorbent core, whereby a portion of the undergarment can be retained between the semi-rigid clip means and the garment facing surface.

31. A method of attaching an absorbent product for absorbing body fluids which is worn in conjunction with an undergarment to the undergarment, comprising the steps of providing an absorbent product comprising an absorbent core having a body facing surface, the garment facing surface and longitudinal edges, said absorbent core having a longitudinal centerline;

and semi-rigid clip means for retaining the absorbent product with respect to an undergarment, the semi-rigid clip means being disposed on the garment facing surface at or near each longitudinal edge of the absorbent core, and placing the clip means in cooperation with an edge of the undergarment, whereby a portion of the undergarment is retained between the semi-rigid clip means and the garment facing surface.