US3608771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable pressure container
Assignee: ELOTRADE AG A SWISS CORP
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Filing: 1969-03-12
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Granted: 1971-09-28
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Expires: 1989-03-12
Abstract
Abstract A disposable, self-destruct, composite container for liquid goods, and in particular, liquid goods having internal pressures, such as beer and carbonated soft drinks. The container includes an elongated body member comprising a paperboard cylinder which is provided with a plastic film on its internal surface for restricting gas permeability and sealing of liquid. The paperboard body member is provided with an exterior coating of thermoplastic to provide a moisture barrier, and for cosmetic appearance purposes. The paperboard body member is closed at each of the top and bottom ends thereof by a circular-shaped disc. The top disc has an opening which is enclosed by a sealing plug means that includes an integral tear-off tubular cap portion that is provided with an integrally molded pull ring for detaching the tubular cap portion.
Inventors
- 👤 Carl C Monroe
- 👤 Verner Vollquartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:25
CPC Classifications
B; B65; B65D; B65D21/00; B65D21/02; B65D21/0209; B65D21/023; B65D21/0231; B65D15/00; B65D15/02; B65D15/04; B65D15/08; B65D39/00; B65D39/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
244 words
In a disposable pressure container for holding a liquid under pressure, the combination comprising: a. a paperboard body member having an open top end and an open bottom end; b. a bottom closure means sealably attached to the bottom end of said body member for enclosing said open bottom end; c. a top closure means sealably attached to the top end of said body member for enclosing said open top end; d. said body member being coated on the inner surface thereof with a film of gas impervious plastic material; e. a sealing plug means sealably mounted in said opening in the top closure means; f. said sealing plug means including an integrally molded tearoff cap portion; g. said body member is coated on its outer surface with a moisture impervious plastic material; h. a cylindrical plug body inserted in said opening; i. a tear portion integrally connecting said plug body to said tear-off cap portion; j. a thin integral, radially inward-extended projection on the inner surface of the plug body, at the outer end thereof, and between the plug body and the cap portion; and k. said cap portion is provided on the external surface with at least one integral, outwardly extended peripheral projection at a position axially outward of said tear portion, whereby the cap portion may be inserted into the body member with the projection on the cap member passing over the projection on the plug body to recap the container.
Claim 2
Dependent Claim
244 words
In a disposable pressure container for holding a liquid under pressure, the combination comprising: a. a paperboard body member having an open top end and an open bottom end; b. a bottom closure means sealably attached to the bottom end of said body member for enclosing said open bottom end; c. a top closure means sealably attached to the top end of said body member for enclosing said open top end; d. said body member being coated on the inner surface thereof with a film of gas impervious plastic material; e. a sealing plug means sealably mounted in said opening in the top closure means; f. said sealing plug means including an integrally molded tearoff cap portion; g. said body member is coated on its outer surface with a moisture impervious plastic material; h. a cylindrical plug body inserted in said opening; i. a tear portion integrally connecting said plug body to said tear-off cap portion; j. a thin integral, radially inward-extended projection on the inner surface of the plug body, at the outer end thereof, and between the plug body and the cap portion; and k. said cap portion is provided on the external surface with at least one integral, outwardly extended peripheral projection at a position axially outward of said tear portion, whereby the cap portion may be inserted into the body member with the projection on the cap member passing over the projection on the plug body to recap the container.
Claim 3
Dependent Claim
265 words
In a disposable pressure container for holding a liquid under pressure, the combination comprising: a. a paperboard body member having an open top end and an open bottom end; b. a bottom closure means sealably attached to the bottom end of said body member for enclosing said open bottom end; c. a top closure means sealably attached to the top end of said body member for enclosing said open top end; d. said body member being coated on the inner surface thereof with a film of gas impervious plastic material; e. a sealing plug means sealably mounted in said opening in the top closure means; f. said sealing plug means including an integrally molded tear-off cap portion; g. said body member is coated on its outer surface with a moisture impervious plastic material; h. a cylindrical plug body inserted in said opening; i. a tear portion integrally connecting said plug body to said tear-off cap portion: j. a thin integral, radially inward-extended projection on the inner surface of the plug body, at the outer end thereof, and between the plug body and the cap portion; k. the radial projection on the plug body is shaped as a ring; and l. said cap portion is formed with a cylindrical external surface and is provided on the external surface with at least one integral, outwardly extended circumferential projection at a position axially outward of said tear portion, whereby the cap portion may be inserted into the body member with the projection on the cap member passing over the projection on the plug body to recap the container.
Claim 4
Dependent Claim
265 words
In a disposable pressure container for holding a liquid under pressure, the combination comprising: a. a paperboard body member having an open top end and an open bottom end; b. a bottom closure means sealably attached to the bottom end of said body member for enclosing said open bottom end; c. a top closure means sealably attached to the top end of said body member for enclosing said open top end; d. said body member being coated on the inner surface thereof with a film of gas impervious plastic material; e. a sealing plug means sealably mounted in said opening in the top closure means; f. said sealing plug means including an integrally molded tear-off cap portion; g. said body member is coated on its outer surface with a moisture impervious plastic material; h. a cylindrical plug body inserted in said opening; i. a tear portion integrally connecting said plug body to said tear-off cap portion: j. a thin integral, radially inward-extended projection on the inner surface of the plug body, at the outer end thereof, and between the plug body and the cap portion; k. the radial projection on the plug body is shaped as a ring; and l. said cap portion is formed with a cylindrical external surface and is provided on the external surface with at least one integral, outwardly extended circumferential projection at a position axially outward of said tear portion, whereby the cap portion may be inserted into the body member with the projection on the cap member passing over the projection on the plug body to recap the container.
Claim 5
Dependent Claim
23 words
A disposable pressure container as defined in claim 2, wherein: a. each of said projections on the cap portion comprises a single ring.
Claim 6
Dependent Claim
39 words
A disposable pressure container as defined in claim 2, wherein: a. each of said projections on the cap portion comprises a portion of a continuous thread configuration that extends continuously around the cap portion for a number of turns.
Claim 7
Dependent Claim
24 words
A disposable pressure container as defined in claim 2, wherein: a. each of said projections on the cap portion is V-shaped in cross section.
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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) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |