US5236430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable training pant having fusion-slit side seams
Assignee: Procter and Gamble Co
•
Filing: 1991-11-21
•
Granted: 1993-08-17
•
Expires: 2011-11-21
Abstract
Abstract A disposable garment manufactured from a fusion-slit chassis having a pair of seams. The seams are formed by folding the chassis in the crotch portion so that the longitudinal side regions of the front portion and rear portion are superposed to form seaming areas; each seaming area is treated with ultrasonic energy sufficient to sever the material of the seaming area in a first area while simultaneously bonding the material of the seaming area in a marginal area adjacent the first area to form a flangeless seam which extends from the disposable garment 1/16" or less, preferably 1/32" or less, and in a preferred embodiment will form a splice between the front portion and rear portion of the chassis. The seaming area will consist of layers of polymeric material and in a preferred embodiment will consist of nonwoven webs of 100% polypropylene fibers.
Inventors
- 👤 Russel P. Bridges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:15
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/49; A61F13/49007; A61F13/49009; A61F13/4902; A61F13/49011; A61F13/49012; A61F13/49014; A61F13/49015; A61F13/496; A61F13/4963; B; B29; B29C; B29C65/00; B29C65/02; B29C65/08; B29C65/083; B29C65/086; B29C65/74; B29C65/743; B29C65/7443; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/433; B29C66/47; B29C66/472; B29C66/4722; B29C66/70; B29C66/72; B29C66/723; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81427; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; A61F13/15577; A61F13/15585; A61F13/491; A61F2013/49025; A61F2013/49042; A61F2013/49044; A61F2013/49047; A61F2013/49068; A61F2013/49076; A61F2013/49087; B29C65/78; B29C65/7841; B29C65/7847; B29C66/45; B29C66/71; B29C66/7232; B29C66/72327; B29C66/7234; B29C66/72343; B29C66/727; B29C66/729; B29C66/7294; B29C66/812; B29C66/8122; B29C66/81411; B29C66/81415; B29C66/81419; B29C66/81433; B29C66/81435; B29C66/8351; B29C66/83511; B29C66/90; B29C66/95; B29C66/951; B29C66/9513; B29L; B29L2031/00; B29L2031/48; B29L2031/4871; B29L2031/4878
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
226 words
A disposable garment for wearing about torso of a Wearer's body having at least one substantially flangeless, separable side seam, comprising: a chassis having: a front portion comprising a polymeric material and having a front waistband, an inner surface facing the Wearer's body, and an outer surface; a rear portion comprising a polymeric material and having a rear waistband, an inner surface facing the Wearer's body, and an outer surface; a crotch portion between said front portion and said rear portion; said front portion being joined to said rear portion to form two leg openings and a waist opening substantially encircled by said front waistband and said rear waistband; and said at least one substantially flangeless seam extending longitudinally from one of said leg openings to said waist opening, said substantially flangeless seam comprising a splice formed by joining said inner surface of said front portion and said inner surface of said rear portion in face to face relation resulting in a mass of fused polymeric material comprising said polymeric material of said front portion and said polymeric material of said rear portion, wherein said splice forms a continuous length between said front portion and said rear portion such that said splice extends about 1/16 of an inch or less from said outer surface of said front portion and said outer surface of said rear portion.
Claim 2
Dependent Claim
226 words
A disposable garment for wearing about torso of a Wearer's body having at least one substantially flangeless, separable side seam, comprising: a chassis having: a front portion comprising a polymeric material and having a front waistband, an inner surface facing the Wearer's body, and an outer surface; a rear portion comprising a polymeric material and having a rear waistband, an inner surface facing the Wearer's body, and an outer surface; a crotch portion between said front portion and said rear portion; said front portion being joined to said rear portion to form two leg openings and a waist opening substantially encircled by said front waistband and said rear waistband; and said at least one substantially flangeless seam extending longitudinally from one of said leg openings to said waist opening, said substantially flangeless seam comprising a splice formed by joining said inner surface of said front portion and said inner surface of said rear portion in face to face relation resulting in a mass of fused polymeric material comprising said polymeric material of said front portion and said polymeric material of said rear portion, wherein said splice forms a continuous length between said front portion and said rear portion such that said splice extends about 1/16 of an inch or less from said outer surface of said front portion and said outer surface of said rear portion.
Claim 3
Dependent Claim
122 words
The disposable garment of claim 1, comprising a second substantially flangeless seam extending longitudinally from one of said leg openings to said waist opening said second substantially flangeless seam comprising a splice formed by joining said inner surface of said front portion and said inner surface f said rear portion in face to face relation resulting in a mass of fused polymeric material comprising said polymeric material of said front portion and said polymeric material of said rear portion, wherein said splice forms a continuous length between said front portion and said rear portion such that said splice extends about 1/16 of an inch or less from said outer surface of said front portion and said outer surface of said rear portion.
Claim 4
Dependent Claim
32 words
The disposable garment of claim 2, wherein said chassis comprises an outer cover and an inner cover, said outer cover and said inner cover being comprised of materials having similar melting points.
Claim 5
Dependent Claim
20 words
The disposable garment of claim 3, wherein said outer cover and said inner cover are each comprised of identical materials.
Claim 6
Dependent Claim
20 words
The disposable garment of claim 3, wherein said outer cover and said inner cover each comprise a 100% polymeric nonwoven.
Claim 7
Dependent Claim
19 words
The disposable garment of claim 5, wherein said chassis additionally comprises an absorbent assembly secured to said inner cover.
Claim 8
Dependent Claim
42 words
The disposable garment of claim 6, wherein said absorbent assembly is an insert which is secured to said inner cover, said insert comprising a topsheet, a backsheet secured to said topsheet, and an absorbent core interposed between said topsheet and said backsheet.
Claim 9
Dependent Claim
13 words
The disposable garment of claim 3, wherein said inner cover comprises a topsheet.
Claim 10
Dependent Claim
19 words
The disposable garment of claim 8, wherein an absorbent core is secured between said topsheet and said outer cover.
Claim 11
Dependent Claim
287 words
A disposable garment for wearing about a torso of a Wearer's body having two substantially flangeless, separable side seams, comprising: a chassis having: a front portion comprising a polymeric material and having a front waistband, an end edge, a first longitudinal edge, a second longitudinal edge, an inner surface facing the Wearer's body, and an outer surface; a rear portion comprising a polymeric material and having a rear waistband, an end edge, a first longitudinal edge, a second longitudinal edge, an inner surface facing the Wearer's body, and an outer surface; a crotch portion between said front portion and said rear portion; said first longitudinal edge of said front portion being joined to said first longitudinal edge of said rear portion along a first substantially flangeless seam of said separable side seams and said second longitudinal edge of said front portion being joined to said second longitudinal edge of said rear portion along a second substantially flangeless seam of said separable side seams to form two leg openings and a waist opening substantially encircled by said front waistband and said rear waistband, said first substantially flangeless seam and said second substantially flangeless seam each comprising a splice formed by joining said inner surface of said front portion and said inner surface of said rear portion in face to face relation resulting in a mass of fused polymeric material comprising said polymeric material of said front portion and said polymeric material of said rear portion, wherein said splice forms a continuous length between said front portion and said rear portion such that said splice extends about 1/16 of an inch or less from said outer surface of said front portion and said outer surface of said rear portion.
Claim 12
Dependent Claim
287 words
A disposable garment for wearing about a torso of a Wearer's body having two substantially flangeless, separable side seams, comprising: a chassis having: a front portion comprising a polymeric material and having a front waistband, an end edge, a first longitudinal edge, a second longitudinal edge, an inner surface facing the Wearer's body, and an outer surface; a rear portion comprising a polymeric material and having a rear waistband, an end edge, a first longitudinal edge, a second longitudinal edge, an inner surface facing the Wearer's body, and an outer surface; a crotch portion between said front portion and said rear portion; said first longitudinal edge of said front portion being joined to said first longitudinal edge of said rear portion along a first substantially flangeless seam of said separable side seams and said second longitudinal edge of said front portion being joined to said second longitudinal edge of said rear portion along a second substantially flangeless seam of said separable side seams to form two leg openings and a waist opening substantially encircled by said front waistband and said rear waistband, said first substantially flangeless seam and said second substantially flangeless seam each comprising a splice formed by joining said inner surface of said front portion and said inner surface of said rear portion in face to face relation resulting in a mass of fused polymeric material comprising said polymeric material of said front portion and said polymeric material of said rear portion, wherein said splice forms a continuous length between said front portion and said rear portion such that said splice extends about 1/16 of an inch or less from said outer surface of said front portion and said outer surface of said rear portion.
Claim 13
Dependent Claim
32 words
The disposable garment of claim 10 wherein said chassis comprises an outer cover and an inner cover, said outer cover and said inner cover being comprised of materials having similar melting points.
Claim 14
Dependent Claim
20 words
The disposable garment of claim 11 wherein said outer cover and said inner cover are each comprised of identical materials.
Claim 15
Dependent Claim
21 words
The disposable garment of claim 12 wherein said outer cover and said inner cover each comprise a 100% polymeric nonwoven material.
Claim 16
Dependent Claim
19 words
The disposable garment of claim 11 wherein said chassis additionally comprises an absorbent assembly secured to said inner cover.
Claim 17
Dependent Claim
46 words
The disposable garment of claim 14 wherein said absorbent assembly is an insert which is secured to said inner cover, said insert comprising a liquid pervious topsheet, a liquid impervious backsheet secured to said topsheet, and an absorbent core interposed between said topsheet and said backsheet.
Claim 18
Dependent Claim
13 words
The disposable garment of claim 11 wherein said inner cover comprises a topsheet.
Claim 19
Dependent Claim
19 words
The disposable garment of claim 16 wherein an absorbent core is secured between said topsheet and said outer cover.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-08-16 | 1997-02-15 | 1997-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-16 | 2001-02-15 | 2001-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-16 | 2005-02-15 | 2005-08-17 | $7700.00 | Window Closed / Lapsed |