US3589422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed bag for liquids
Assignee: Baxter International Inc
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Filing: 1969-03-17
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Granted: 1971-06-29
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Expires: 1989-03-17
Abstract
Abstract A sealed bag for containing liquids. Typically made by a blowmolding process from a tube of molten thermoplastic resin. The bag comprises a tubular body of flexible plastic, sealed at one end, and narrowing to an integral tubular neck portion at the other end. A head portion, integral with the neck portion, seals the bag. A tubular recess is formed, typically in the head portion of the bag, for receiving a needle or the like for puncturing the bag to obtain the liquid contents. Generally, the cross section of the bag is oval, and a hanger at one end of the bag is attached thereto at a single station to facilitate collapse of the bag as liquid is withdrawn.
Inventors
- 👤 David Bellamy Jr
- 👤 Philip Gregory Ralston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:44
CPC Classifications
A; A61; A61J; A61J1/00; A61J1/05; Y; Y10; Y10S; Y10S128/00; Y10S128/24
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
102 words
A sealed, collapsible bag containing a liquid, which bag comprises: a tubular body of flexible plastic, said tubular body being sealed at one end and narrowing at the other end to a head portion integral with said tubular body for sealing said bag, and a tubular recess at one end of said collapsible bag, said tubular recess being defined by a tubular sidewall of essentially uniform transverse dimension and a bottom wall, said walls being integral with the remaining material of said bag, said recess containing a tubular sleeve for receiving and holding means for puncturing the bag to obtain said liquid.
Claim 2
Dependent Claim
102 words
A sealed, collapsible bag containing a liquid, which bag comprises: a tubular body of flexible plastic, said tubular body being sealed at one end and narrowing at the other end to a head portion integral with said tubular body for sealing said bag, and a tubular recess at one end of said collapsible bag, said tubular recess being defined by a tubular sidewall of essentially uniform transverse dimension and a bottom wall, said walls being integral with the remaining material of said bag, said recess containing a tubular sleeve for receiving and holding means for puncturing the bag to obtain said liquid.
Claim 3
Dependent Claim
16 words
The collapsible bag of claim 1 in which said recess is located in said head portion.
Claim 4
Dependent Claim
74 words
The collapsible bag of claim 2 in which said tubular body is oval in cross section, said bag having integral hanger means at the end of said body opposite said head, said hanger means being attached to the body at a single station by a connecting neck which is of less width than the hanger means, to facilitate collapse of the bag while hanging by said means as liquid is withdrawn from the bag.
Claim 5
Dependent Claim
25 words
The colLapsible bag of claim 2 in which a plurality of tubular recesses are defined in said head portion, each recess containing a tubular sleeve.
Claim 6
Dependent Claim
30 words
The collapsible bag of claim 4, in which the transverse dimension of said bag is progressively reduced in the direction of said head portion to define a generally conical configuration.
Claim 7
Dependent Claim
59 words
In a sealed, collapsible bag containing a liquid, a tubular recess, said tubular recess being defined by a tubular sidewall of essentially uniform transverse dimension and a bottom wall, said walls being integral with the remaining material of said bag, said recess containing a tubular sleeve for receiving and holding means for puncturing the bag to obtain said liquid.
Claim 8
Dependent Claim
59 words
In a sealed, collapsible bag containing a liquid, a tubular recess, said tubular recess being defined by a tubular sidewall of essentially uniform transverse dimension and a bottom wall, said walls being integral with the remaining material of said bag, said recess containing a tubular sleeve for receiving and holding means for puncturing the bag to obtain said liquid.
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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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |