CA1097451A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Contractable side flaps for disposable diaper
Assignee: Procter and Gamble Co
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Filing: 1974-11-12
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Granted: 1981-03-17
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Expires: 1994-11-12
Abstract
Abstract \ CONTRACTABLE SIDE PORTIONS FOR DISPOSABLE DIAPER Kenneth B. Buell ABSTRACT OF THE DISCLOSURE An elastically contractable, flexible side por-tion for an integral disposable diaper. The side portion extends along the lateral edge of the diaper and an elastic contracting member is attached to the side portion ad-jacent the outer lateral edge of the side portion to elastically contract the outer edge of the side portion.
Inventors
- 👤 Kenneth B. Buell
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-07 13:40
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/49; A61F13/49007; A61F13/49009; A61F13/49017
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
178 words
An integral disposable diaper, comprising: (a) a flexible moisture impermeable backsheet; (b) a semi-rigid absorbent body having a Taber stiffness of at least 7 gram-centimeters super-posed on and associated with the backsheet; (c) the backsheet extending laterally beyond the edges of the absorbent body in the crotch area thereof, whereby a flexible side flap is formed along each edge of the diaper in that area, with the absorbent body being immobilized for movement relative to the side flaps; (d) an elastic member longitudinally operatively associated with each side flap in an elastically contractable condition, to provide a longitudinally elastically contractable side flap, the elastic member being effective to longitudinally gather the side flap thereby providing an elasticized contractable line through the side flap; and (e) the portion of the elasticized contractable line in the crotch area being spaced outwardly from the edge of the semi-rigid absorbent body at least 3/4 inch; whereby effective elastic side flaps are formed on the in-tegral diaper and the side flaps are compliant and con-tractable and form effective seals about an infant's leg.
Claim 2
Dependent Claim
178 words
An integral disposable diaper, comprising: (a) a flexible moisture impermeable backsheet; (b) a semi-rigid absorbent body having a Taber stiffness of at least 7 gram-centimeters super-posed on and associated with the backsheet; (c) the backsheet extending laterally beyond the edges of the absorbent body in the crotch area thereof, whereby a flexible side flap is formed along each edge of the diaper in that area, with the absorbent body being immobilized for movement relative to the side flaps; (d) an elastic member longitudinally operatively associated with each side flap in an elastically contractable condition, to provide a longitudinally elastically contractable side flap, the elastic member being effective to longitudinally gather the side flap thereby providing an elasticized contractable line through the side flap; and (e) the portion of the elasticized contractable line in the crotch area being spaced outwardly from the edge of the semi-rigid absorbent body at least 3/4 inch; whereby effective elastic side flaps are formed on the in-tegral diaper and the side flaps are compliant and con-tractable and form effective seals about an infant's leg.
Claim 3
Dependent Claim
89 words
The diaper claimed in claim 1 including attachment means between the side flap and its corresponding lateral edge of the absorbent body so that tension forces in the side flap are transmitted to the lateral edge of the absorbent body, whereby the absorbent body if compacted by the legs of the infant during wearing is uncompacted or stretched out by outward movement of the infant's legs due to tension imposed on the edge of the absorbent body developed in the side flaps by outward movement of the infant's legs.
Claim 4
Dependent Claim
92 words
The diaper claimed in claim 2 including an ear portion at a longitudinal end of the absorbent body, the ear portion extending outwardly beyond the lateral edge of the absorbent body in the crotch area and having flexural rigidity so that it is resistant to inward forces imposed on the ear portion, the elastic member being laterally inward toward the longitudinal center line of the diaper from the lateral edge of the ear portion, whereby the ear portion tends to remain extended outwardly when subjected to forces imposed by the elastic member.
Claim 5
Dependent Claim
36 words
The diaper claimed in claim 1, 2 or 3 which includes a topsheet coextensive with and superposed on the backsheet with the absorbent body disposed therebetween, said topsheet con-sisting of a compliant, soft feeling, porous web.
Claim 6
Dependent Claim
92 words
The diaper claimed in claim 1 including an ear portion at a longitudinal end of the absorbent body, the ear portion extending outwardly beyond the lateral edge of the absorbent body in the crotch area and having flexural rigidity so that it is resistant to inward forces imposed on the ear portion, the elastic member being laterally inward toward the longitudinal center line of the diaper from the lateral edge of the ear portion, whereby the ear portion tends to remain extended outwardly when subjected to forces imposed by the elastic member.
Claim 7
Dependent Claim
22 words
The diaper claimed in claim 5 wherein the minimum effective length of the elastic member in its stretched condi-tion is 4 inches.
Claim 8
Dependent Claim
13 words
The diaper claimed in claim 5 wherein the side flap is essentially triangular.
Claim 9
Dependent Claim
93 words
The diaper claimed in claim 7 wherein the absorbent body has lateral edges directed inwardly from the diaper front and back ends toward the diaper center to form an hour-glass shape, with the lateral edge of the absorbent body in the front portion forming an angle .alpha. of 20° to 65° with the lateral centerline of the absorbent body and the lateral edge of the absorbent body in the back portion forming an angle of .beta. of 20° to 70° with said lateral centerline, and .alpha. plus .beta. being between 90° and 135°.
Claim 10
Dependent Claim
19 words
The diaper claimed in claim 8 wherein the angle .alpha. is about 52° and angle .beta. is about 58°.
Claim 11
Dependent Claim
40 words
The diaper claimed in claim 3, 5 or 6 wherein one end of the elastic member intersects the front portion of the absorbent body and the other end of the elastic member intersects the back portion of the absorbent body.
Claim 12
Dependent Claim
33 words
The diaper claimed in claim 1, 2 or 5 wherein the elasticized contractable line in the crotch area is spaced outwardly from the lateral edge of the absorbent body at least 1-3/4 inches.
Claim 13
Dependent Claim
31 words
The diaper claimed in claim 1, 2 or 5 wherein the elasticized contractable lines in the crotch area are spaced from each other by a distance of at least 4 inches.
References Cited (Backward Citations)
No citation records indexed.
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