US3845766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cup-shaped device for the collection of menstrual fluids and intended for internal use
Assignee: Essity Hygiene and Health AB
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Filing: 1973-06-11
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Granted: 1974-11-05
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Expires: 1993-06-11
Abstract
Abstract This invention concerns a menstrual device for internal use consisting of a liquid-proof, soft and elastomeric material. The device is generally cup-shaped and has on its outside annular ribs extending peripherally around the wall of the cup, the ribs having for its purpose to sealingly abut the wall of the vaginal canal when the device is in use in order to maintain the device in position in the vaginal canal. The invention is characterized in that at least one annular rib extending around the periphery of the wall of the cup is wave-shaped.
Inventors
- 👤 H Zoller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:27
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/44; A61F5/451; A61F5/455; A61F5/4553
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
96 words
A menstrual device intended for internal use and made of a liquid-proof, soft, elastomeric material and which is generally cup-shaped and provided on the outside thereof with annular ribs extending peripherally around the wall of said cup, which ribs are intended to sealingly abut the wall of a vaginal canal when the device is in use to hold said device in position in said canal, characterized in that at least one of the annular ribs extending around the periphery of the wall of the cup has a waveshape and is spaced from the other said ribs.
Claim 2
Dependent Claim
96 words
A menstrual device intended for internal use and made of a liquid-proof, soft, elastomeric material and which is generally cup-shaped and provided on the outside thereof with annular ribs extending peripherally around the wall of said cup, which ribs are intended to sealingly abut the wall of a vaginal canal when the device is in use to hold said device in position in said canal, characterized in that at least one of the annular ribs extending around the periphery of the wall of the cup has a waveshape and is spaced from the other said ribs.
Claim 3
Dependent Claim
17 words
A device according to claim 1, characterized in that the wave shape is a zigzag wave shape.
Claim 4
Dependent Claim
17 words
A device according to claim 1, characterized in that the wave shape is a sine wave shape.
Claim 5
Dependent Claim
20 words
A device according to claim 1, characterized in that at least one of the wave-shaped ribs has a varying height.
Claim 6
Dependent Claim
43 words
A device according to claim 1, characterized in that at least one, but at most each alternate one of the crests of the annular ribs coincides with a longitudinally extending rib arranged on the outer surface or the inner surface of the cup.
Claim 7
Dependent Claim
29 words
A device according to claim 1, characterized in that the portions of the cup wall located between the different ribs have slight springing properties as compared with the ribs.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |