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US4211225A
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Tampon with a collapsible and invertible shroud
Assignee: BRIBAR CORP A CORP
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Filing: 1978-07-19
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Granted: 1980-07-08
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Expires: 1998-07-19
Abstract
Abstract A tampon designed for catamenial or medical use which includes a collapsible and invertible shroud (13) affixed to the front or inserted end (17) of the main tampon body (12). The shroud has an inner layer (15), adjacent to the main tampon body, fabricated from a smoothly gliding, yet permeable material which allows the main tampon body to slide from the shroud upon withdrawal. The shroud is also configured to invert behind the main tampon body during withdrawal. The collapsed and inverted shroud is significantly smaller than the main tampon body and barely contacts the surrounding body tissue, thereby eliminating withdrawal irritation.
Inventors
- 👤 Dan Sibalis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:52
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/20; A61F13/2051; Y; Y10; Y10S; Y10S604/00; Y10S604/904
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
99 words
A tampon having a main body (12) and a withdrawal cord (11) affixed thereto, characterized in that said tampon further includes a collapsible and invertible shroud (13) affixed to said main body opposite said withdrawal cord and a smoothly gliding layer (15) included between said main body and said shroud, said layer (15) being configured so that the frictional forces between said main body and said layer are less than frictional forces between said shroud and the surrounding body tissue, to cause said main body to slide out from said shroud on withdrawal, progressively inverting and collapsing said shroud.
Claim 2
Dependent Claim
99 words
A tampon having a main body (12) and a withdrawal cord (11) affixed thereto, characterized in that said tampon further includes a collapsible and invertible shroud (13) affixed to said main body opposite said withdrawal cord and a smoothly gliding layer (15) included between said main body and said shroud, said layer (15) being configured so that the frictional forces between said main body and said layer are less than frictional forces between said shroud and the surrounding body tissue, to cause said main body to slide out from said shroud on withdrawal, progressively inverting and collapsing said shroud.
Claim 3
Dependent Claim
29 words
The tampon of claim 1 further characterized in that said shroud (13) is precreased circumferencially (30) so as to facilitate the collapse and inversion of said shroud upon withdrawal.
Claim 4
Dependent Claim
34 words
The tampon of claim 1 further characterized in that said shroud (13) is performed with a plurality of longitudinal creases (20) so as to facilitate the collapse and inversion of said shroud upon withdrawal.
Claim 5
Dependent Claim
24 words
The tampon of claim 1, characterized in that said smoothly gliding layer (15) is formed as an integral part of said main body (12).
Claim 6
Dependent Claim
23 words
The tampon of claim 1, characterized in that said smoothly gliding layer (15) is formed as an integral part of said shroud (13).
References Cited (Backward Citations)
US3814099A
Cited
US4018225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-07-08 | 1984-01-07 | 1984-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-08 | 1988-01-07 | 1988-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-08 | 1992-01-07 | 1992-07-08 | $7700.00 | Window Closed / Lapsed |