US3620399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double-walled container
Assignee: Individual
•
Filing: 1969-02-14
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Granted: 1971-11-16
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Expires: 1989-02-14
Abstract
Abstract A double-walled container comprises an outer casing of relatively rigid plastic material formed with an upstanding cylindrical collar from which the upper edge of a concavebottomed inner cup, which is folded on itself through 180*, is suspended straddlewise. The inner cup is of relatively flexible plastic material and the outer surface of the folded edge and the inner surface of a closure member being formed with companion threads for sealing the assembly. The upstanding collar is formed on its outer surface with a shallow projection for engagement by the registering inner surface of said folded edge of the inner cup.
Inventors
- 👤 Michel Rapeaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:53
CPC Classifications
B; B65; B65D; B65D11/00; B65D11/16
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
146 words
A double wall container comprising an external vessel with a cylindrical neck, an independent inner cup with a cylindrical bent outwards on itself 180* and straddling the neck of the external vessel in tight-fitting relation therewith on both the inner and outer surfaces thereof, the bent neck of the inner cup having an outer surface with screw threads thereon, and a cap with a peripheral skirt having internal screw threads threaded on the screw threads on the bent neck, said vessel and cap being constituted of relatively rigid plastic material and said inner cup being constituted of relatively flexible plastic material to provide a fluidtight joint between the cup and vessel, said neck of the vessel having an outer surface facing an inner surface of the outwardly bent neck and including an annular projection thereon engaged with said outwardly bent neck to anchor the same together.
Claim 2
Dependent Claim
146 words
A double wall container comprising an external vessel with a cylindrical neck, an independent inner cup with a cylindrical bent outwards on itself 180* and straddling the neck of the external vessel in tight-fitting relation therewith on both the inner and outer surfaces thereof, the bent neck of the inner cup having an outer surface with screw threads thereon, and a cap with a peripheral skirt having internal screw threads threaded on the screw threads on the bent neck, said vessel and cap being constituted of relatively rigid plastic material and said inner cup being constituted of relatively flexible plastic material to provide a fluidtight joint between the cup and vessel, said neck of the vessel having an outer surface facing an inner surface of the outwardly bent neck and including an annular projection thereon engaged with said outwardly bent neck to anchor the same together.
Claim 3
Dependent Claim
20 words
A container as claimed in claim 1 wherein said vessel and cap are polystyrene and the inner cup is polyethylene.
References Cited (Backward Citations)
US1221335A
Cited
US2076549A
Cited
US2804995A
Cited
US3156279A
Cited
US3120570A
Cited
US3311248A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |