Patent US3749271A successfully refreshed from Google Patents.
US3749271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resealable ampoule closure
Assignee: Becton Dickinson and Co
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Filing: 1971-06-22
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Granted: 1973-07-31
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Expires: 1991-06-22
Abstract
Abstract A glass ampoule is heat sealed at one end and has a necked down annular break line formed adjacent to but spaced from the sealed end. A plastic cap having two spaced annular sealing rings formed on an inner wall is pressed on the sealed end so that the break line is between the spaced sealing rings.
Inventors
- 👤 D Ellis
- 👤 B Markiewicz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:29
CPC Classifications
B; B67; B67B; B67B7/00; B67B7/92; Y; Y10; Y10S; Y10S215/00; Y10S215/902
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
95 words
A container, comprising: an ampoule having a cylindrical portion terminating in a sealed end; an annular frangible breakline formed around the cylindrical portion adjacent to and spaced from the sealed end; a resilient cup shaped cap fitted over the sealed end and having a cylindrical wall extending over the breakline; and a pair of spaced annular sealing rings formed on an inner surface of the cylindrical wall, said sealing rings formed and arranged for engaging the cylindrical portion on each side of the frangible breakline to form a seal on each side of the breakline.
Claim 2
Dependent Claim
95 words
A container, comprising: an ampoule having a cylindrical portion terminating in a sealed end; an annular frangible breakline formed around the cylindrical portion adjacent to and spaced from the sealed end; a resilient cup shaped cap fitted over the sealed end and having a cylindrical wall extending over the breakline; and a pair of spaced annular sealing rings formed on an inner surface of the cylindrical wall, said sealing rings formed and arranged for engaging the cylindrical portion on each side of the frangible breakline to form a seal on each side of the breakline.
Claim 3
Dependent Claim
20 words
A container as described in claim 1, wherein the ampoule is made of glass and the end is heat sealed.
Claim 4
Dependent Claim
23 words
A container as described in claim 1, wherein the frangible breakline has a wall thickness substantially less than that of the cylindrical portion.
Claim 5
Dependent Claim
18 words
A container as described in claim 1, wherein the resilient cap is a one piece molded plastic cap.
Claim 6
Dependent Claim
23 words
A container as described in claim 1, wherein the sealing rings have inside diameters less than the outside diameter of the cylindrical portion.
Claim 7
Dependent Claim
14 words
A container as described in claim 1, wherein the ampoule and cap are sterilized.
References Cited (Backward Citations)
US1956568A
Cited
US2295865A
Cited
US2317420A
Cited
FR1241061A
Cited
US3306291A
Cited
US3544020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |