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US4236647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container for sterile liquids
Assignee: Individual
•
Filing: 1979-01-15
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Granted: 1980-12-02
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Expires: 1999-01-15
Abstract
Abstract A device for containing sterile liquids in such a manner so that said liquid may be incrementally dispensed from the device without contamination to the remaining liquid. More particularly, a bottle having an opening and having within it a flexible plastic bag connected to the bottle only at its opening. Said bottle opening being sealed by a rubber stopper which has a vent in it which allows air to flow from outside the container to the area between the bottle and the flexible bag. Thus when liquid is sucked out of the bag via a hollow needle inserted through the stopper, no vacuum is created for the bag collapses as air flows into the area between the bag and bottle.
Inventors
- 👤 Paulson A. Kotturan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:05
CPC Classifications
A; A61; A61J; A61J1/00; A61J1/14; A61J1/20; A61J1/2096; A61J1/2003; A61J1/2006; A61J1/201; A61J1/2068; A61J1/2075
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
75 words
A container, comprising: an outer rigid container having an opening therein, a resilient stopper means for plugging said opening in said outer container, a flexible bag held within said rigid container, and a means for allowing the outer atmosphere to flow between the outer environment and the area between said outer container and said bag, and a shield means extending between said stopper and said bag, said shield means having a multiplicity of openings therein.
Claim 2
Dependent Claim
75 words
A container, comprising: an outer rigid container having an opening therein, a resilient stopper means for plugging said opening in said outer container, a flexible bag held within said rigid container, and a means for allowing the outer atmosphere to flow between the outer environment and the area between said outer container and said bag, and a shield means extending between said stopper and said bag, said shield means having a multiplicity of openings therein.
Claim 3
Dependent Claim
35 words
A container as recited in claim 1, wherein: said outer container is composed of transparent glass, said stopper is composed of a resilient rubber, and said bag is composed of a flexible, inert, transparent plastic.
Claim 4
Dependent Claim
38 words
A container as recited in claim 2, wherein: said means for allowing atmosphere to flow is an aperture in said stopper, said aperture extending from the outer environment to the area between said outer container and said bag.
Claim 5
Dependent Claim
39 words
A container as recited in claim 2, wherein: said means for allowing atmosphere to flow is an aperture in said outer container, said aperture extending from the outer environment to the area between said outer container and said bag.
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) | 1983-12-02 | 1984-06-02 | 1984-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-02 | 1988-06-02 | 1988-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-02 | 1992-06-02 | 1992-12-02 | $7700.00 | Window Closed / Lapsed |