Patent US3986511A successfully refreshed from Google Patents.
US3986511A
Expired / Lapsed
US
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Intravaginal sanitary device
Assignee: Mo och Domsjo AB
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Filing: 1975-05-09
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Granted: 1976-10-19
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Expires: 1995-05-09
Abstract
Abstract An absorbent, disposable sanitary device for insertion in a body cavity, and especially intended for insertion into the vagina to absorb menstrual fluid therein, comprising a resilient rotund absorbent fibrous layer which retains its resiliency when wet and in which fibers are bonded together, supported on a core of stiff material, and means attached to the core to facilitate removal of the device from the vagina or other body cavity.
Inventors
- 👤 Elisabet Olofsson
- 👤 Bernt Johansson
- 👤 Hans-Ivar Eriksson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:52
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/20; A61F13/2022; A61F13/2048; Y; Y10; Y10S; Y10S604/00; Y10S604/904
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
70 words
A sanitary device for insertion into a body cavity comprising a resilient rotund absorbent fibrous layer having a reticulated cohesive porous structure in which fibers are bonded together in a manner to define interstices therebetween, and which retains its resiliency when wet; a core of stiff material embedded in and supporting the fibrous layer; and means attached to the core for the removal of the device from the body cavity.
Claim 2
Dependent Claim
70 words
A sanitary device for insertion into a body cavity comprising a resilient rotund absorbent fibrous layer having a reticulated cohesive porous structure in which fibers are bonded together in a manner to define interstices therebetween, and which retains its resiliency when wet; a core of stiff material embedded in and supporting the fibrous layer; and means attached to the core for the removal of the device from the body cavity.
Claim 3
Dependent Claim
30 words
A sanitary device according to claim 1 in which the absorbent layer comprises an intermingled and interlocked mat of fibers which are bonded together to form the reticulated fibrous structure.
Claim 4
Dependent Claim
17 words
A sanitary device according to claim 1 in which the absorbent layer has a substantially ellipsoidal configuration.
Claim 5
Dependent Claim
40 words
A sanitary device according to claim 3 in which the ratio of the length of the minor axis to the length of the major axis of the ellipsoidal absorbent layer lies within the range from about 1 to about 0.4.
Claim 6
Dependent Claim
17 words
A sanitary device according to claim 1 in which the absorbent layer has a substantially spheroidal configuration.
Claim 7
Dependent Claim
19 words
A sanitary device according to claim 1 in which fibers of the absorbent layer are attached to the core.
Claim 8
Dependent Claim
19 words
A sanitary device according to claim 1 in which the fibers are of thermoplastic material and are self-bonded together.
Claim 9
Dependent Claim
19 words
A sanitary device according to claim 7 in which the fibers comprise a mixture of thermoplastic and absorbent fibers.
Claim 10
Dependent Claim
18 words
A sanitary device according to claim 1 in which the absorbent layer is enclosed in a liquid-permeable sheath.
Claim 11
Dependent Claim
16 words
A sanitary device according to claim 1 in which the rigid core comprises self-bonded thermoplastic fibers.
Claim 12
Dependent Claim
28 words
A sanitary device according to claim 1 in which the density of the absorbent layer is within the range from about 0.05 to about 0.15 g/cm 3 .
Claim 13
Dependent Claim
18 words
A sanitary device according to claim 1 in which the fibers are bonded together with a bonding agent.
Claim 14
Dependent Claim
29 words
A sanitary device according to claim 1 in which the means attached to the core for the removal of the device from the body cavity is of filamentary material.
Claim 15
Dependent Claim
14 words
A sanitary device according to claim 13 in which the filamentary material is non-wicking.
Claim 16
Dependent Claim
13 words
A sanitary device according to claim 1 in which the core is elongated.
Claim 17
Dependent Claim
13 words
A sanitary device according to claim 15 in which the core is tubular.
Claim 18
Dependent Claim
15 words
A sanitary device according to claim 1 in which the core has a ribbed surface.
Claim 19
Dependent Claim
27 words
A sanitary device according to claim 1 in which the fibers comprise a mixture of polypropylene and regenerated cellulose fibers, and the core is a polyethylene tube.
References Cited (Backward Citations)
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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) | 1979-10-19 | 1980-04-19 | 1980-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-19 | 1984-04-19 | 1984-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-19 | 1988-04-19 | 1988-10-19 | $7700.00 | Window Closed / Lapsed |