US3651809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Baffle for sanitary protection devices
Assignee: Kimberly Clark Corp
•
Filing: 1970-02-24
•
Granted: 1972-03-28
•
Expires: 1990-02-24
Abstract
Abstract An absorption device such as a sanitary napkin is provided with a fluid impervious baffle that may be disposed of in conventional sanitary systems. The baffle comprises a thin film of a watersensitive material which includes a water-repellent coating on that surface of the film which comes in contact with absorbed fluid in the napkin during use.
Inventors
- 👤 John F Champaigne Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:36
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/47; A61F13/475; A61F13/4751; A61F13/4755; A61F13/15203; A61F13/15211; A61F2013/15235; A61F13/51; A61F13/514; A61F13/51401; A61F2013/51409; A61F13/53; A61F2013/530131; A61F2013/530802
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
13 words
The device of claim 1 wherein the absorptive device is a catamenial napkin.
Claim 2
Dependent Claim
19 words
The device of claim 2 wherein the water-soluble material is polyvinyl alcohol and the water-repellent coating is linseed oil.
Claim 3
Dependent Claim
38 words
The device of claim 2 which includes baffles positioned at the sides of the pad, the baffles comprising a thin film of a water-soluble material having a water-repellent coating on the surface of the film adjacent the pad.
Claim 4
Dependent Claim
17 words
The device of claim 1 wherein the film has a thickness of up to about 2.0 mils.
Claim 5
Dependent Claim
16 words
The device of claim 1 wherein the baffle is located adjacent the bottom of the wrapper.
Claim 6
Dependent Claim
18 words
The device of claim 1 wherein the baffle has a thin absorbent layer disposed adjacent its uncoated surface.
Claim 7
Dependent Claim
18 words
The device of claim 1 wherein said fluid pervious wrapper is disintegratable in the presence of excess water.
Claim 8
Dependent Claim
42 words
The absorptive device of claim 1 wherein the film is capable of dissolving in an excess of water and the coaTing is sufficiently thick to be moisture proof in use and disintegrates when the film is placed in an excess of water.
References Cited (Backward Citations)
US3123075A
Cited
US1702530A
Cited
US1843037A
Cited
US3111948A
Cited
US2896627A
Cited
US3067746A
Cited
US3078849A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-28 | 1975-09-27 | 1976-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-28 | 1979-09-27 | 1980-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-28 | 1983-09-27 | 1984-03-28 | $7700.00 | Window Closed / Lapsed |