US3879957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration installation for a container ship
Assignee: OVERSEAS CONTAINERS Ltd
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Filing: 1974-02-22
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Granted: 1975-04-29
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Expires: 1994-02-22
Abstract
Abstract In a container ship a refrigeration installation for circulating cool air through containers stacked on deck stands on the deck between stacks of containers and consists of a protective framework supporting supply and return ducts which are laterally displaceable on the framework to retract couplings attached to the ducts inside the framework when containers are being moved about and to extend the couplings from the framework for attachment to the containers after stacking of the containers.
Inventors
- 👤 Joseph Howard Wilson
- 👤 Arthur Victor Heighton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:22
CPC Classifications
B; B63; B63B; B63B25/00; B63B25/002; B63B25/004; B63J; B63J2/00; B63J2/02; B63J2/08; F; F25; F25D; F25D19/00; F25D19/003; B63J2/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
131 words
In a container ship having a refrigeration installation for circulating cold air through containers stacked on the deck, the improvement comprising a heat exchanger for cooling the air, a number of supply ducts leading from the heat exchanger and each having supply couplings for connection to a plurality of containers, a corresponding number of return ducts each having return couplings for connection to the containers, a frame supporting the supply and return ducts to extend generally horizontally and parallel to each other, each supply and return duct including at least one section of ducting slidable on the frame in a direction transverse to the duct to advance a coupling towards a container or retract the coupling within the frame, and driving means for effecting the sliding movement of the ducting sections.
Claim 2
Dependent Claim
131 words
In a container ship having a refrigeration installation for circulating cold air through containers stacked on the deck, the improvement comprising a heat exchanger for cooling the air, a number of supply ducts leading from the heat exchanger and each having supply couplings for connection to a plurality of containers, a corresponding number of return ducts each having return couplings for connection to the containers, a frame supporting the supply and return ducts to extend generally horizontally and parallel to each other, each supply and return duct including at least one section of ducting slidable on the frame in a direction transverse to the duct to advance a coupling towards a container or retract the coupling within the frame, and driving means for effecting the sliding movement of the ducting sections.
Claim 3
Dependent Claim
36 words
The combination of claim 1 wherein the frame extends across the width of the deck of the ship and stands on the deck in a position between neighbouring hatch covers on which the containers are stacked.
Claim 4
Dependent Claim
59 words
The combination of claim 1, wherein a ducting section of a supply duct and a ducting section of a return duct each have the same number of couplings, each coupling of the supply duct is in vertical alignment with a coupling of the return duct, and a common drive means is coupled to said supply and return ducting sections.
Claim 5
Dependent Claim
25 words
The combination of claim 1, wherein each of said supply and return ducts includes a flexible hose coupling said ducting section to said heat exchanger.
Claim 6
Dependent Claim
18 words
The combination of claim 1, wherein each of the couplings is extendible to effect connection to the container.
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) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |