US3759060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable refrigerated container that can be refilled, reused or recycled
Assignee: Individual
•
Filing: 1972-06-28
•
Granted: 1973-09-18
•
Expires: 1992-06-28
Abstract
Abstract A disposable container providing an internal cylinder containing a pressurized refrigerant and a valve means operable by an exterior pull-tab to open the valve means to permit the pressurized refrigerant to expand into a heat exchanger whereby heat is absorbed from the contents of the container, thereby cooling said contents. The device is preferably adapted to a container of the widely used type commonly called a ''''Tap Top Can'''' and connection means between the pull-tab and the valve opens said valve simultaneously with the opening of the container resulting in a rapid cooling of the container contents.
Inventors
- 👤 H Chase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:14
CPC Classifications
F; F25; F25D; F25D3/00; F25D3/10; F25D3/107; F25D2331/00; F25D2331/80; F25D2331/805
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
203 words
A disposable refrigerated container comprising: A. a container including, 1. a cylindrical sidewall, 2. a bottom end closure crimped to the bottom periphery of said sidewall, 3. a top end closure crimped to the top periphery of said sidewall and including, a. a lift ring, b. a tear-out portion riveted to said lift ring whereby an opening is formed in said top end closure when said lift ring is pulled outwardly of said top closure; B. a cylinder in said container filled with liquified refrigerant gas; C. a heat exchanger in said container; D. a tube connecting said cylinder to said heat exchanger; E. a valve means in said cylinder normally in a closing relation to said tube; F. a valve lift rod having, 1. an upper end normally disposed below and adjacent to said valve means, and 2. a lower end; G. a connector means connecting between said lower end and said tear out portion whereby said valve lift rod is actuated to open said valve when said tear-out portion is removed to permit said liquified refrigerant to escape into said heat exchanger through said tube to expand and vaporize to cool the contents of said container by the heat exchange principal.
Claim 2
Dependent Claim
203 words
A disposable refrigerated container comprising: A. a container including, 1. a cylindrical sidewall, 2. a bottom end closure crimped to the bottom periphery of said sidewall, 3. a top end closure crimped to the top periphery of said sidewall and including, a. a lift ring, b. a tear-out portion riveted to said lift ring whereby an opening is formed in said top end closure when said lift ring is pulled outwardly of said top closure; B. a cylinder in said container filled with liquified refrigerant gas; C. a heat exchanger in said container; D. a tube connecting said cylinder to said heat exchanger; E. a valve means in said cylinder normally in a closing relation to said tube; F. a valve lift rod having, 1. an upper end normally disposed below and adjacent to said valve means, and 2. a lower end; G. a connector means connecting between said lower end and said tear out portion whereby said valve lift rod is actuated to open said valve when said tear-out portion is removed to permit said liquified refrigerant to escape into said heat exchanger through said tube to expand and vaporize to cool the contents of said container by the heat exchange principal.
Claim 3
Dependent Claim
12 words
a bottom end closure crimped to the bottom periphery of said sidewall,
Claim 4
Dependent Claim
12 words
a bottom end closure crimped to the bottom periphery of said sidewall,
Claim 5
Dependent Claim
49 words
A disposable refrigerated container as defined in claim 1 wherein said heat exchanger is formed from a pair of abutting, metallic plates, preformed to provide a serpantine tubular conduit therebetween, said serpantine tubular conduit being defined by fixing said plates together along the side peripheries thereof as by welding.
Claim 6
Dependent Claim
64 words
a lower end; G. a connector means connecting between said lower end and said tear out portion whereby said valve lift rod is actuated to open said valve when said tear-out portion is removed to permit said liquified refrigerant to escape into said heat exchanger through said tube to expand and vaporize to cool the contents of said container by the heat exchange principal.
Claim 7
Dependent Claim
64 words
a lower end; G. a connector means connecting between said lower end and said tear out portion whereby said valve lift rod is actuated to open said valve when said tear-out portion is removed to permit said liquified refrigerant to escape into said heat exchanger through said tube to expand and vaporize to cool the contents of said container by the heat exchange principal.
Claim 8
Dependent Claim
97 words
a top end closure crimped to the top periphery of said sidewall and including, a. a lift ring, b. a tear-out portion riveted to said lift ring whereby an opening is formed in said top end closure when said lift ring is pulled outwardly of said top closure; B. a cylinder in said container filled with liquified refrigerant gas; C. a heat exchanger in said container; D. a tube connecting said cylinder to said heat exchanger; E. a valve means in said cylinder normally in a closing relation to said tube; F. a valve lift rod having,
Claim 9
Dependent Claim
97 words
a top end closure crimped to the top periphery of said sidewall and including, a. a lift ring, b. a tear-out portion riveted to said lift ring whereby an opening is formed in said top end closure when said lift ring is pulled outwardly of said top closure; B. a cylinder in said container filled with liquified refrigerant gas; C. a heat exchanger in said container; D. a tube connecting said cylinder to said heat exchanger; E. a valve means in said cylinder normally in a closing relation to said tube; F. a valve lift rod having,
Claim 10
Dependent Claim
20 words
A disposable refrigerated contaiNer as defined in claim 2 wherein the upper end of said serpantine tubular conduit is open.
Claim 11
Dependent Claim
68 words
A disposable refrigerated container as defined in claim 1 including a transverse pin fixed to said lower end, and wherein said connector means comprises a rod connected at its upper end to said rivet and at its lower end to an elongated curved plate having a yoke at its lower end fixed to said transverse pin in spanning relation to the lower end of said valve lift rod.
Claim 12
Dependent Claim
58 words
A disposable refrigerated container as defined in claim 1 wherein the upper end of said valve lift rod passes through a gasket into said tube and through an orifice in a web spanning said tube, said orifice being sized to meter the flow of refrigerant from said cylinder into said heat exchanger when said valve means is open.
Claim 13
Dependent Claim
25 words
A disposable refrigerated container as defined in claim 1 including a refill valve opening into said cylinder whereby said refrigerating device is refillable for reuse.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |