US4328804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hygienic tampon and tampon applicator
Assignee: Individual
•
Filing: 1979-11-15
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Granted: 1982-05-11
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Expires: 1999-11-15
Abstract
Abstract A hygienic tampon and a tampon applicator. The tampon comprises a rope-shaped absorbent material coiled in parallel whirls and compressed into a bullet form and a withdrawal string attached to an end of the absorbent material. Because of the coiled structure, the tampon expands to all directions upon absorption of menstrual fluid to fully fill in the body cavity thereby preventing leakage. The expanded tampon can easily be withdrawn as the coiled tampon body is uncoiled when the withdrawl string is pulled. The tampon applicator comprises an outer tube for accomodation of a tampon therein and an inner tube telescopically engageable with the outer tube and operable to push the tampon out of the forward end of the outer tube and it is characterized in that a cap of water soluble material is detachably mounted on the forward end of the outer tube to cover the forward end and the head of the tampon. The water soluble cap assures smooth insertion of the tampon without pain.
Inventors
- 👤 Kazuo Shimatani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:34
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/20; A61F13/2051; A61F13/2062
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
124 words
A hygienic tampon comprising: a rope-shaped absorbent material having a length of about 10 to 12.3 cm, a diameter of about 1.2 to 3 cm and an uncompressed volume of about 15 to 30 cm 3 ; the rope-shaped material being initially loosely coiled to form a single coil having unconnected parallel spaced turns and being thereafter compressed into the form of a shank having a rounded head end, with a withdrawal string attached to an opposite end of the rope-shaped absorbent material; said shank being about 4.4 to 5.0 cm long, 1.2 to 2.5 cm in diameter and having a compressed volume of about 5 to 10 cm 3 ; said shank expanding upon absorbing liquid and freely uncoiling to said uncompressed volume.
Claim 2
Dependent Claim
124 words
A hygienic tampon comprising: a rope-shaped absorbent material having a length of about 10 to 12.3 cm, a diameter of about 1.2 to 3 cm and an uncompressed volume of about 15 to 30 cm 3 ; the rope-shaped material being initially loosely coiled to form a single coil having unconnected parallel spaced turns and being thereafter compressed into the form of a shank having a rounded head end, with a withdrawal string attached to an opposite end of the rope-shaped absorbent material; said shank being about 4.4 to 5.0 cm long, 1.2 to 2.5 cm in diameter and having a compressed volume of about 5 to 10 cm 3 ; said shank expanding upon absorbing liquid and freely uncoiling to said uncompressed volume.
Claim 3
Dependent Claim
23 words
A hygienic tampon as claimed in claim 1 wherein an elastic synthetic resin having a sponge structure is incorporated in the absorbent material.
Claim 4
Dependent Claim
19 words
A hygienic tampon as claimed in claim 1 or 2 wherein the withdrawal string is adjustable in its length.
Claim 5
Dependent Claim
224 words
A tampon and applicator comprising: an outer tube for accommodation of a hygienic tampon therein; an inner tube telescopically engageable with the outer tube and operable to push the hygienic tampon out of the forward end of the outer tube into a vagina; and a rounded cap made of a water soluble material acceptable for insertion into the vagina, detachably mounted on the forward end of the outer tube to cover the forward end of the outer tube, and to cover a rounded head of the tampon; the tampon comprising an initially rope-shaped absorbent material having a length of about 10 to 12.3 cm, a diameter of about 1.2 to 3 cm and an uncompressed volume of about 15 to 30 cm 3 ; the rope-shaped material being initially loosely coiled to form a single coil having unconnected parallel spaced turns and being thereafter compressed into the form of a shank having a rounded head end, with a withdrawal string attached to an opposite end of the rope-shaped absorbent material; said shank being about 4.4 to 5.0 cm long, 1.2 to 2.5 cm in diameter and having a compressed volume of about 5 to 10 cm 3 ; said shank forming the tampon with rounded disposed in said outer tube and expanding upon absorbing liquid in the vagina and freely uncoiling to uncompressed volume.
Claim 6
Dependent Claim
224 words
A tampon and applicator comprising: an outer tube for accommodation of a hygienic tampon therein; an inner tube telescopically engageable with the outer tube and operable to push the hygienic tampon out of the forward end of the outer tube into a vagina; and a rounded cap made of a water soluble material acceptable for insertion into the vagina, detachably mounted on the forward end of the outer tube to cover the forward end of the outer tube, and to cover a rounded head of the tampon; the tampon comprising an initially rope-shaped absorbent material having a length of about 10 to 12.3 cm, a diameter of about 1.2 to 3 cm and an uncompressed volume of about 15 to 30 cm 3 ; the rope-shaped material being initially loosely coiled to form a single coil having unconnected parallel spaced turns and being thereafter compressed into the form of a shank having a rounded head end, with a withdrawal string attached to an opposite end of the rope-shaped absorbent material; said shank being about 4.4 to 5.0 cm long, 1.2 to 2.5 cm in diameter and having a compressed volume of about 5 to 10 cm 3 ; said shank forming the tampon with rounded disposed in said outer tube and expanding upon absorbing liquid in the vagina and freely uncoiling to uncompressed volume.
Claim 7
Dependent Claim
15 words
A tampon applicator as claimed in claim 4 wherein the cap is semispherical in shape.
Claim 8
Independent Claim
126 words
A method of forming a hygienic tampon comprising: providing a rope-shaped member of absorbent material having a length of about 10 to 12.3 cm, a diameter of about 1.2 to 3 cm and a volume of about 15 cm 3 to 30 cm 3 ; loosely coiling the rope-shaped member without tension into a single helix having a plurality of unconnected spaced turns; and compressing the coiled rope-shaped member into a shape having a cylindrical shank and a rounded head which is from 4.4 to 5 cm long, 1.2 to 2.5 cm in diameter and 5 to 10 cm 3 in volume; said coiled rope-shaped member adapted to absorb liquid and expand and uncoil to its uncompressed volume of about 15 to 30 cm 3 .
Claim 9
Independent Claim
126 words
A method of forming a hygienic tampon comprising: providing a rope-shaped member of absorbent material having a length of about 10 to 12.3 cm, a diameter of about 1.2 to 3 cm and a volume of about 15 cm 3 to 30 cm 3 ; loosely coiling the rope-shaped member without tension into a single helix having a plurality of unconnected spaced turns; and compressing the coiled rope-shaped member into a shape having a cylindrical shank and a rounded head which is from 4.4 to 5 cm long, 1.2 to 2.5 cm in diameter and 5 to 10 cm 3 in volume; said coiled rope-shaped member adapted to absorb liquid and expand and uncoil to its uncompressed volume of about 15 to 30 cm 3 .
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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) | 1985-05-10 | 1985-11-09 | 1986-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-10 | 1989-11-09 | 1990-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-10 | 1993-11-09 | 1994-05-11 | $7700.00 | Window Closed / Lapsed |