US3733849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for transportation of commodities
Assignee: Sun Shipbuilding and Dry Dock Co
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Filing: 1971-06-29
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Granted: 1973-05-22
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Expires: 1991-06-29
Abstract
Abstract Large insulated containers are used for the transport of chilled or frozen commodities. Each of the containers has its own electric-motor-driven refrigeration equipment, which is supplied with electric power from the ship or trailer chassis on which the containers are being transported. In the containers, a continuous flow of refrigerated (or, in some cases, heated) air is maintained up through and/or around the packaged commodity. Means is provided to change the atmosphere inside the container by the addition of fresh air. A temperature set point adjustment is provided to maintain the temperature of the air being circulated in the container. A relatively simple and convenient arrangement is provided for mounting the refrigeration equipment on the container.
Inventors
- 👤 R Cantagallo
- 👤 J Lutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:05
CPC Classifications
F; F25; F25D; F25D19/00; F25D19/003; F25D17/00; F25D17/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
A storage and transportation apparatus comprising a closed housing of rectangular prismoidal outer configuration, means providing at the bottom of said housing a plurality of parallel slot-like air flow channels which are open at one end, which extend in the direction of the length of said housing, and which open upwardly into the interior thereof, blower means mounted at one end of said housing for producing an air flow, means coupling the discharge of said blower means to the open ends of all of said channels, means coupling the intake of said blower means to the interior of said housing, adjacent the top and at said one end thereof, means dividing the air returning from the top of said housing toward the blower intake into a plurality of separate portions, environmental temperature varying means mounted at said one end of said housing in the path of one only of said portions, and power-driven means for positively moving the air which has passed through said temperature varying means to the intake of said blower means, said air moving means including means for injecting the temperature-varied air which has passed through said temperature varying means into the air in said portions of returning air other than said one portion.
Claim 2
Dependent Claim
207 words
A storage and transportation apparatus comprising a closed housing of rectangular prismoidal outer configuration, means providing at the bottom of said housing a plurality of parallel slot-like air flow channels which are open at one end, which extend in the direction of the length of said housing, and which open upwardly into the interior thereof, blower means mounted at one end of said housing for producing an air flow, means coupling the discharge of said blower means to the open ends of all of said channels, means coupling the intake of said blower means to the interior of said housing, adjacent the top and at said one end thereof, means dividing the air returning from the top of said housing toward the blower intake into a plurality of separate portions, environmental temperature varying means mounted at said one end of said housing in the path of one only of said portions, and power-driven means for positively moving the air which has passed through said temperature varying means to the intake of said blower means, said air moving means including means for injecting the temperature-varied air which has passed through said temperature varying means into the air in said portions of returning air other than said one portion.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |