US4650481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crinkled, quilted absorbent pad
Assignee: Kimberly Clark Worldwide Inc
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Filing: 1985-02-22
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Granted: 1987-03-17
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Expires: 2005-02-22
Abstract
Abstract The invention is generally accomplished by providing a pad that has an impermeable backing member, an overlaying permeable member and an absorbent coform layer therebetween. The pad is provided with a quilted pattern by permanent adhering compression of the pad in narrow areas, forming a lined pattern. The pad further may be heated to shrink the coform and provide a pleasing puckered surface.
Inventors
- 👤 James J. O'Connor
- 👤 Theodore B. Lang
- 👤 Peggy H. Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:59
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/49; A61F13/49003; A61F13/49004; A61F13/53; A61F13/531; A61F13/532; A61F13/533; A61F13/534; A61F13/539; A61F13/56; A61F13/58; A61F13/47; A61F2013/4708; A61F13/51; A61F13/514; A61F13/51401; A61F2013/51409; A61F2013/53445; A61F2013/53908; A61F2013/5395; A61F2013/586
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
74 words
A washable absorbent pad comprising a backing sheet, a body-side permeable cover, an absorbent coform member located between said permeable cover and said backing sheet wherein said pad is provided with a pattern of narrow densified areas by permanent compression of said coform absorbent, wherein said densified areas form a quilted pattern embossed onto said pad, and said body-side cover, said backing sheet and said coform are permanently adhered together in said densified areas.
Claim 2
Dependent Claim
74 words
A washable absorbent pad comprising a backing sheet, a body-side permeable cover, an absorbent coform member located between said permeable cover and said backing sheet wherein said pad is provided with a pattern of narrow densified areas by permanent compression of said coform absorbent, wherein said densified areas form a quilted pattern embossed onto said pad, and said body-side cover, said backing sheet and said coform are permanently adhered together in said densified areas.
Claim 3
Dependent Claim
22 words
The washable pad of claim 1 wherein said pad has been heated to shrink said coform, thereby providing an irregularly puckered surface.
Claim 4
Dependent Claim
15 words
The washable pad of claim 1 wherein said backing sheet is larger than said absorbent.
Claim 5
Dependent Claim
13 words
The pad of claim 1 wherein said densified regions increase lateral liquid transfer.
Claim 6
Dependent Claim
11 words
The pad of claim 1 wherein said backing sheet is impermeable.
Claim 7
Dependent Claim
18 words
The pad of claim 5 wherein said absorbent member is adhered to said impermeable backing sheet by adhesive.
Claim 8
Dependent Claim
26 words
The pad of claim 1 wherein said quilted pattern comprises densified areas adhesively secured by an adhesive utilized to adhere said coform to said backing sheet.
Claim 9
Dependent Claim
12 words
The pad of claim 1 wherein said densified areas are heat sealed.
Claim 10
Dependent Claim
12 words
The pad of claim 1 wherein said densified areas will transmit fluid.
Claim 11
Dependent Claim
12 words
The pad of claim 2 wherein said densified areas are substantially permeable.
Claim 12
Dependent Claim
12 words
The pad of claim 1 wherein said densified areas are substantially permeable.
Claim 13
Dependent Claim
73 words
An absorbent mat comprising an impervious backing sheet, a pad of coform absorbent material adhered to said impermeable backing sheet, and a permeable web adhered to the outer surface of said coform wherein said pad is provided with a series of intersecting densified areas forming a quilted pattern, said backing sheet, said permeable web and said absorbent are permanently adhered together in said densified areas and wherein said mat has a puckered surface.
Claim 14
Dependent Claim
73 words
An absorbent mat comprising an impervious backing sheet, a pad of coform absorbent material adhered to said impermeable backing sheet, and a permeable web adhered to the outer surface of said coform wherein said pad is provided with a series of intersecting densified areas forming a quilted pattern, said backing sheet, said permeable web and said absorbent are permanently adhered together in said densified areas and wherein said mat has a puckered surface.
Claim 15
Dependent Claim
11 words
The mat of claim 12 wherein said densified areas transmit fluid.
Claim 16
Dependent Claim
12 words
The mat of claim 12 wherein said densified areas are substantially impermeable.
Claim 17
Independent Claim
61 words
A method of forming an absorbent mat comprising providing an absorbent pad of coform material having a permeable cover adhered to a first surface, adhering a sheet to the second surface of said pad, permanently compressing narrow intersecting areas of said pad to adhere together said coform material, said permeable cover and said sheet in densified areas having a quilted pattern.
Claim 18
Independent Claim
61 words
A method of forming an absorbent mat comprising providing an absorbent pad of coform material having a permeable cover adhered to a first surface, adhering a sheet to the second surface of said pad, permanently compressing narrow intersecting areas of said pad to adhere together said coform material, said permeable cover and said sheet in densified areas having a quilted pattern.
Claim 19
Dependent Claim
22 words
The method of claim 15 further including laundering said pad to shrink said coform and provide a pad with a puckered surface.
Claim 20
Dependent Claim
14 words
The method of claim 15 wherein said sheet on said second surface is impermeable.
Claim 21
Dependent Claim
14 words
The method of claim 15 wherein said permanently compressing is performed using ultrasonic energy.
Claim 22
Dependent Claim
17 words
The method of claim 15 wherein said permanently compressing is performed using adhesive to obtain permanent bonding.
Claim 23
Dependent Claim
26 words
The method of claim 15 wherein said permanently compressing permanently adheres said first sheet, said second sheet and said absorbent pad together in a quilted pattern.
Claim 24
Dependent Claim
11 words
The pad of claim 1 wherein said backing sheet is permeable.
Claim 25
Dependent Claim
12 words
The pad of claim 1 wherein said densified areas are substantially impermeable.
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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) | 1990-03-16 | 1990-09-15 | 1991-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-16 | 1994-09-15 | 1995-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-16 | 1998-09-15 | 1999-03-17 | $7700.00 | Window Closed / Lapsed |