Patent US3812987A successfully refreshed from Google Patents.
US3812987A
Expired / Lapsed
US
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Container loading and unloading
Assignee: IHI Corp
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Filing: 1971-10-28
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Granted: 1974-05-28
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Expires: 1991-10-28
Abstract
Abstract A container loading and unloading method in which a buffer is provided between a container crane and a rear conveyance facility on a container crane so that some of the containers may be deposited upon said buffer when the containers are transferred from the container crane to the container carriage or vice versa.
Inventors
- 👤 M Watatani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:01
CPC Classifications
B; B66; B66C; B66C19/00; B66C19/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A container crane structure having a main girder along which a main trolley loading and unloading device travels transversely, a trolley track beam below the main girder upon which an auxiliary trolley loading and unloading device travels, said trolley track beam being transversely extended over a wharf below said main girder, a first storage beam being provided within the container crane structure below said trolley track beam for storing either loaded or unloaded containers handled by said auxiliary trolley loading and unloading device, carriages movably mounted on said trolley track beam adapted to receive the containers, and a second storage beam also within the container crane structure and being positioned between said trolley track beam and said first storage beam for storing either loaded or unloaded containers handled by said main trolley loading or unloading device.
Claim 2
Dependent Claim
136 words
A container crane structure having a main girder along which a main trolley loading and unloading device travels transversely, a trolley track beam below the main girder upon which an auxiliary trolley loading and unloading device travels, said trolley track beam being transversely extended over a wharf below said main girder, a first storage beam being provided within the container crane structure below said trolley track beam for storing either loaded or unloaded containers handled by said auxiliary trolley loading and unloading device, carriages movably mounted on said trolley track beam adapted to receive the containers, and a second storage beam also within the container crane structure and being positioned between said trolley track beam and said first storage beam for storing either loaded or unloaded containers handled by said main trolley loading or unloading device.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |