US3845873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum insulated container
Assignee: Aladdin Industries LLC
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Filing: 1973-02-09
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Granted: 1974-11-05
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Expires: 1993-02-09
Abstract
Abstract A vacuum insulated container has a double-walled filler with the space between the walls being evacuated so as to provide a vacuum insulating space. A jacket for the filler is provided by foaming in place a foamable plastic material of the type forming a relatively hard or impervious skin around the filler which adheres to the entire outer surface of the outer wall of the filler. A stopper and cup, the latter functioning as a cover, are also shown. The impervious skin could also be made by rotational or blow-molding a flexible vinyl skin and inserting the filler before foaming a flexible foam between the skin and the filler.
Inventors
- 👤 J Bridges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:26
CPC Classifications
A; A47; A47J; A47J41/00; A47J41/0055
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
150 words
A vacuum insulated container comprising: a double-walled filler with the space between the walls substantially evacuated so as to provide a vacuum insulating space therebetween and having a closed bottom at one end and an open throat leading to an opening at the other end for filling and pouring, a jacket of substantially greater thickness than the walls of the filler formed solely from a foamed plastic material having a relatively impervious outer skin encompassing and engaging the outer wall of the filler at its bottom and sides, said jacket is provided with first holding elements formed on the outer surface thereof adjacent said opening to hold a stopper in said opening, and second holding mEans formed on the outer surface of said jacket below said first holding means whereby a cup may be inverted and placed on the container to cover a stopper and be retained on said jacket.
Claim 2
Dependent Claim
150 words
A vacuum insulated container comprising: a double-walled filler with the space between the walls substantially evacuated so as to provide a vacuum insulating space therebetween and having a closed bottom at one end and an open throat leading to an opening at the other end for filling and pouring, a jacket of substantially greater thickness than the walls of the filler formed solely from a foamed plastic material having a relatively impervious outer skin encompassing and engaging the outer wall of the filler at its bottom and sides, said jacket is provided with first holding elements formed on the outer surface thereof adjacent said opening to hold a stopper in said opening, and second holding mEans formed on the outer surface of said jacket below said first holding means whereby a cup may be inverted and placed on the container to cover a stopper and be retained on said jacket.
Claim 3
Dependent Claim
27 words
A vacuum insulated bottle as set forth in claim 1 wherein said throat and said opening are of a smaller diameter than the remainder of said filler.
References Cited (Backward Citations)
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Cited
US2981984A
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US3341045A
Cited
US3261491A
Cited
US3627162A
Cited
US3591768A
Cited
US3722538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |