Patent US4787536A successfully refreshed from Google Patents.
US4787536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dosage package
Assignee: AstraZeneca AB
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Filing: 1986-02-27
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Granted: 1988-11-29
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Expires: 2006-02-27
Abstract
Abstract A dosage package of a thermoplastic material with a relatively flat container (1), which has a permanently shaped edge wall portion (5) extending all around, as well as two opposite side wall portions (8,9), which are compressable to discharge a well defined dosage via a discharge tube (), which is connected to the edge wall portion (5).
Inventors
- 👤 Carin A. M. Widerstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:35
CPC Classifications
B; B65; B65D; B65D1/00; B65D1/09; B65D1/095; G; G01; G01F; G01F11/00; G01F11/02; G01F11/08; G01F11/082
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
221 words
A dosage package for storing and discharging a liquid, semi-liquid or pasty product, comprising a squeezing thermoplastic container portion and a discharge portion, said container portion and discharge portion being parts of a unitary member, said container portion having a closed all around extending circular cylindrical shaped substantially rigid edge wall portion to which said discharge portion is joined, two opposite side wall portions, at least one of which includes an outwardly durved portion which is compressible to an inwardly similarly curved position so as to measure and discharge a specific dosage when the outwardly curved portion is compressed to the inwardly curved position, and an annular bulged portion forming a juncture between the edge wall portion and the outwardly curved portion so as to form and to limit the outwardly curved portion and also limit the inwardly curved position of the outwardly curved portion, said edge wall portion and said side wall portions having a substantially equal thickness, said thickness being sufficient so that substantially no fluid is diffusable through said wall portions, and so that the side wall portions are imcompressible without said annular bulged portion and said discharge portion being configured so as to prevent discharge of the product stored in the container in the absence of compression of said outwardly curved portion to the inwardly curved position.
Claim 2
Dependent Claim
221 words
A dosage package for storing and discharging a liquid, semi-liquid or pasty product, comprising a squeezing thermoplastic container portion and a discharge portion, said container portion and discharge portion being parts of a unitary member, said container portion having a closed all around extending circular cylindrical shaped substantially rigid edge wall portion to which said discharge portion is joined, two opposite side wall portions, at least one of which includes an outwardly durved portion which is compressible to an inwardly similarly curved position so as to measure and discharge a specific dosage when the outwardly curved portion is compressed to the inwardly curved position, and an annular bulged portion forming a juncture between the edge wall portion and the outwardly curved portion so as to form and to limit the outwardly curved portion and also limit the inwardly curved position of the outwardly curved portion, said edge wall portion and said side wall portions having a substantially equal thickness, said thickness being sufficient so that substantially no fluid is diffusable through said wall portions, and so that the side wall portions are imcompressible without said annular bulged portion and said discharge portion being configured so as to prevent discharge of the product stored in the container in the absence of compression of said outwardly curved portion to the inwardly curved position.
Claim 3
Dependent Claim
26 words
A dosage package according to claim 1, characterized in that the container is substantially symmetrical relative to a central plane between the opposite side wall portions.
Claim 4
Dependent Claim
30 words
A dosage package according to claim 1, characterized in that said discharge portion is provided with a break off sealing part having a holding tab parallel to said central plane.
Claim 5
Dependent Claim
19 words
A dosage package according to claim 1, characterized in that said curved portion has the shape of a cap.
Claim 6
Dependent Claim
15 words
A dosage package according to claim 1, wherein said edge wall portion is substantially cylindrical.
Claim 7
Dependent Claim
35 words
A dosage package according to claim 1, wherein said container is made of a material of the group consisting of polyethylene, polypropylene and polyester, and has a wall thickness in the range of 0.3-1.5 mm.
Claim 8
Dependent Claim
35 words
A dosage package according to claim 6, wherein said container is made of one of the group consisting of polyethylene, polypropylene and polyester, said container having a wall thickness in the range of 0.6-1.0 mm.
Claim 9
Dependent Claim
32 words
A dosage package according to claim 7, wherein said container is made of one of the group consisting of polyethylene, polypropylene, and polyester, said container having a wall thickness of 0.8 mm.
Claim 10
Dependent Claim
160 words
Method of making dosing possible from a container having such a great wall thickness that said container normally cannot be compressed characterized in that the walls of the container are formed in such a way that the said container is relatively flat with a closed all around extending circular cylindrical shaped substantially rigid edge wall portion, in that the said edge wall portion via an annular bulged portion continues into an annular portion to which an outwardly curved side wall portion is joined, said annular portion forming and limiting the outwardly curved side wall portion and also limiting the side wall portion to an inwardly similarly curved position when the outwardly curved portion is compressed to discharge a defined dose from the container and in that a discharge portion of the container is configured so as to prevent discharge of the product from the container in the absence of compression of said side wall portion to said inwardly curved position.
Claim 11
Dependent Claim
160 words
Method of making dosing possible from a container having such a great wall thickness that said container normally cannot be compressed characterized in that the walls of the container are formed in such a way that the said container is relatively flat with a closed all around extending circular cylindrical shaped substantially rigid edge wall portion, in that the said edge wall portion via an annular bulged portion continues into an annular portion to which an outwardly curved side wall portion is joined, said annular portion forming and limiting the outwardly curved side wall portion and also limiting the side wall portion to an inwardly similarly curved position when the outwardly curved portion is compressed to discharge a defined dose from the container and in that a discharge portion of the container is configured so as to prevent discharge of the product from the container in the absence of compression of said side wall portion to said inwardly curved position.
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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) | 1991-11-29 | 1992-05-30 | 1992-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-29 | 1996-05-30 | 1996-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-29 | 2000-05-30 | 2000-11-29 | $7700.00 | Window Closed / Lapsed |