Patent DE829740C successfully refreshed from Google Patents.
EP0337438A1
Expired / Lapsed
EP
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Sanitary napkin having an attachment system comprising biased hinges
Assignee: Kenvue Brands LLC
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Filing: 1989-04-12
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Granted: —
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Expires: 2009-04-12
Abstract
Abstract Sanitary napkins are disclosed which include side-protecting flaps (10) having specially designed hinge means (50) for disposing at least one of the flaps (10) in a prefolded, flexible position. The flap or flaps (10) of the preferred embodiments may be wrapped around a crotch portion of an undergarment without additional attachment adhesive.
Inventors
- 👤 Wassim Seidy
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 09:04
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/47; A61F13/476; A61F13/56; A61F13/5605; A61F13/5616
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
70 words
A sanitary napkin comprising: (a) an absorbent element having longitudinally extending sides, transverse ends, a body-facing side (30) and an undergarment facing side (20); and (b) flaps (10) extending laterally from each of said longitudinal sides of said absorbent element, at least one of said flaps (10) comprising hinge means (50) for disposing said flap (10) in acute angular relation with said undergarment facing side (20) of said absorbent element.
Claim 2
Dependent Claim
70 words
A sanitary napkin comprising: (a) an absorbent element having longitudinally extending sides, transverse ends, a body-facing side (30) and an undergarment facing side (20); and (b) flaps (10) extending laterally from each of said longitudinal sides of said absorbent element, at least one of said flaps (10) comprising hinge means (50) for disposing said flap (10) in acute angular relation with said undergarment facing side (20) of said absorbent element.
Claim 3
Dependent Claim
34 words
A sanitary napkin of claim 1 wherein both of said flaps (10) comprise hinge means (50) for disposing said flaps (10) in angular relation with said undergarment facing side (20) of said absorbent element.
Claim 4
Dependent Claim
29 words
The sanitary napkin of claim 1 wherein said flap is disposed to form an angle sufficiently acute to wrap around a side of a crotch portion of an undergarment.
Claim 5
Dependent Claim
14 words
The sanitary napkin of claim 3 wherein said angle is less than about 90°.
Claim 6
Dependent Claim
14 words
The sanitary napkin of claim 3 wherein said angle is less than about 45°.
Claim 7
Dependent Claim
14 words
The sanitary napkin of claim 3 wherein said angle is less than about 30°.
Claim 8
Dependent Claim
14 words
The sanitary napkin of claim 3 wherein said angle is less than about 15°.
Claim 9
Dependent Claim
15 words
The sanitary napkin of claim 4 wherein said hinge means comprises a resilient polymeric material.
Claim 10
Dependent Claim
15 words
The sanitary napkin of claim 8 wherein said resilient polymeric material comprises a thermoplastic fiber.
Claim 11
Dependent Claim
15 words
The sanitary napkin of claim 9 wherein said resilient polymeric material comprises hollow polyester fibers.
Claim 12
Dependent Claim
20 words
The sanitary napkin of claim 8 wherein said resilient polymeric material is heat cured and compressed to form said angle.
Claim 13
Dependent Claim
25 words
The sanitary napkin of claim 4 wherein said hinge means (50) comprises at least one elastic strip disposed between said absorbent element and said flaps.
Claim 14
Dependent Claim
20 words
The sanitary napkin of claim 11 wherein said elastic strip is disposed on an undergarment facing material of said napkin.
Claim 15
Independent Claim
118 words
A method of applying a sanitary napkin to an undergarment, comprising: (a) providing a sanitary napkin having an absorbent element having longitudinally extending sides, transverse ends, a body-facing side and an undergarment facing side, said napkin further including flaps extending laterally from each of said longitudinal sides of said absorbent element, said flaps comprising hinge means for disposing each of said flaps in angular relation with said undergarment facing side of said absorbent element; (b) disposing said undergarment facing side of said sanitary napkin onto said undergarment; and (c) folding said flaps over a crotch portion of said undergarment whereby said flaps are laterally extended prior to allowing them to fold over an outside portion of said undergarment.
Claim 16
Independent Claim
118 words
A method of applying a sanitary napkin to an undergarment, comprising: (a) providing a sanitary napkin having an absorbent element having longitudinally extending sides, transverse ends, a body-facing side and an undergarment facing side, said napkin further including flaps extending laterally from each of said longitudinal sides of said absorbent element, said flaps comprising hinge means for disposing each of said flaps in angular relation with said undergarment facing side of said absorbent element; (b) disposing said undergarment facing side of said sanitary napkin onto said undergarment; and (c) folding said flaps over a crotch portion of said undergarment whereby said flaps are laterally extended prior to allowing them to fold over an outside portion of said undergarment.
Claim 17
Dependent Claim
30 words
The method of claim 14 wherein said providing step provides flaps disposed to form an angle with said undergarment facing side of said absorbent element of less than about 45°.
Claim 18
Dependent Claim
30 words
The method of claim 14 wherein said providing step provides flaps disposed to form an angle with said undergarment facing side of said absorbent element of less than about 15°.
Claim 19
Dependent Claim
18 words
The method of claim 15 wherein said providing step provides a hinge means comprising a heat treated thermoplastic.
References Cited (Backward Citations)
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