Patent US2197709A successfully refreshed from Google Patents.
Patent US4185631A successfully refreshed from Google Patents.
US4185631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Readily removable expanding catamenial tampon
Assignee: Johnson and Johnson
•
Filing: 1978-03-17
•
Granted: 1980-01-29
•
Expires: 1998-03-17
Abstract
Abstract A catamenial tampon is provided for precluding the bypass of menstrual fluid in use while simultaneously being easy to remove after use. The tampon comprises a generally cylindrical absorbent body having a ring slidably engaged around the body, the ring also being attached to the insertion end of the absorbent body. The ring comprises material which will expand when in place within the vagina to preclude menstrual fluid bypass. A withdrawal string is attached to the cylindrical body whereby, when the tampon is being removed by force exerted on the cylindrical body by means of the withdrawal string, the cylindrical body is disengaged from the ring and removed from the tampon followed by the attached ring.
Inventors
- 👤 Wesley J. McConnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:49
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/20; A61F13/2051
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
174 words
A catamenial tampon comprising an absorbent, generally cylindrical body having an insertion end and a withdrawal end; an annular ring slidably engaged around the absorbent body, said ring comprising a material which expands when emplaced within the vagina; and means for attachment of said ring to the insertion end of said absorbent body, said means comprising a menstrual fluid pervious elongated sack having a closed end at the bottom portion thereof and an open mouth at the top portion, said cylindrical body being placed in the bottom portion, said sack being closed off about the insertion end of said cylindrical body with the top portion of the sack extending above the insertion end, said ring being affixed to the periphery of said open mouth of the sack and said ring and said top portion of the sack being rolled over the cylindrical body to slidably engage the ring about the cylindrical body; said tampon being provided with a withdrawal string affixed to the cylindrical body for removing said tampon from the vagina after use.
Claim 2
Dependent Claim
174 words
A catamenial tampon comprising an absorbent, generally cylindrical body having an insertion end and a withdrawal end; an annular ring slidably engaged around the absorbent body, said ring comprising a material which expands when emplaced within the vagina; and means for attachment of said ring to the insertion end of said absorbent body, said means comprising a menstrual fluid pervious elongated sack having a closed end at the bottom portion thereof and an open mouth at the top portion, said cylindrical body being placed in the bottom portion, said sack being closed off about the insertion end of said cylindrical body with the top portion of the sack extending above the insertion end, said ring being affixed to the periphery of said open mouth of the sack and said ring and said top portion of the sack being rolled over the cylindrical body to slidably engage the ring about the cylindrical body; said tampon being provided with a withdrawal string affixed to the cylindrical body for removing said tampon from the vagina after use.
Claim 3
Dependent Claim
14 words
The tampon of claim 1 wherein said ring expands when wetted with menstrual fluid.
Claim 4
Dependent Claim
13 words
The tampon of claim 1 wherein said ring comprises a compressed absorbent material.
Claim 5
Dependent Claim
37 words
The tampon of claim 1 wherein said ring comprises a compressed, resilient material and means are provided for inserting said ring, in the compressed state, into the vagina and for releasing said ring from compression after insertion.
Claim 6
Dependent Claim
35 words
The tampon of claim 4 wherein said means for inserting comprise a tampon applicator wherein said tampon is held during insertion in a tampon retainer which maintains said ring in the compressed state during insertion.
Claim 7
Dependent Claim
12 words
The tampon of claim 4 wherein said ring comprises a resilient foam.
Claim 8
Dependent Claim
10 words
The tampon of claim 6 wherein said foam is polyurethane.
References Cited (Backward Citations)
GB712456A
Cited
US3766921A
Cited
US3794029A
Cited
CH565553A5
Cited
US3946737A
Cited
US4018225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-28 | 1983-07-30 | 1984-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-28 | 1987-07-30 | 1988-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-28 | 1991-07-30 | 1992-01-29 | $7700.00 | Window Closed / Lapsed |