US3703153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for buildi
Assignee: Mitsui Engineering and Shipbuilding Co Ltd
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Filing: 1970-12-14
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Granted: 1972-11-21
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Expires: 1990-12-14
Abstract
Abstract A method of building ships in which predetermined blocks of the hull are fabricated remotely and are transported to dockside at an elevated level. The blocks are displaced to overlie the dock bottom and are rotated downwardly onto a conveyor on the dock bottom and are mounted on the conveyor by means of a buffer plate which is adjustable on the conveyor. The block is then displaced into position adjoining other hull blocks on the dock bottom and is adjusted in position to be united with the other hull blocks by means of the adjustable buffer plate.
Inventors
- 👤 Kazuo Maeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:20
CPC Classifications
B; B63; B63B; B63B3/00; B63B3/02; B63B3/14; B63B3/16; B63B3/18; B63B73/00; B63B73/10; B63B73/30; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53539; Y10T29/53543
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
119 words
A method of building a ship hull in a dock having a bottom underlying the completed hull and an elevated level adjoining said dock bottom comprising the steps of fabricating a plurality of individual hull blocks remote from said dock, positioning each block on a conveyor in a position for transfer, transferring said block on the conveyor to the dock at the elevated level thereof, displacing said block to at least partially overlie said dock bottom and transferring said block to a bottom conveyor on the dock bottom by rotating the block downwardly from the upper level, thereafter conveying said bloCk along said dock bottom into position adjoining other hull blocks thereon, and assembling said blocks in the dock.
Claim 2
Independent Claim
119 words
A method of building a ship hull in a dock having a bottom underlying the completed hull and an elevated level adjoining said dock bottom comprising the steps of fabricating a plurality of individual hull blocks remote from said dock, positioning each block on a conveyor in a position for transfer, transferring said block on the conveyor to the dock at the elevated level thereof, displacing said block to at least partially overlie said dock bottom and transferring said block to a bottom conveyor on the dock bottom by rotating the block downwardly from the upper level, thereafter conveying said bloCk along said dock bottom into position adjoining other hull blocks thereon, and assembling said blocks in the dock.
Claim 3
Independent Claim
119 words
A method of building a ship hull in a dock having a bottom underlying the completed hull and an elevated level adjoining said dock bottom comprising the steps of fabricating a plurality of individual hull blocks remote from said dock, positioning each block on a conveyor in a position for transfer, transferring said block on the conveyor to the dock at the elevated level thereof, displacing said block to at least partially overlie said dock bottom and transferring said block to a bottom conveyor on the dock bottom by rotating the block downwardly from the upper level, thereafter conveying said bloCk along said dock bottom into position adjoining other hull blocks thereon, and assembling said blocks in the dock.
Claim 4
Independent Claim
119 words
A method of building a ship hull in a dock having a bottom underlying the completed hull and an elevated level adjoining said dock bottom comprising the steps of fabricating a plurality of individual hull blocks remote from said dock, positioning each block on a conveyor in a position for transfer, transferring said block on the conveyor to the dock at the elevated level thereof, displacing said block to at least partially overlie said dock bottom and transferring said block to a bottom conveyor on the dock bottom by rotating the block downwardly from the upper level, thereafter conveying said bloCk along said dock bottom into position adjoining other hull blocks thereon, and assembling said blocks in the dock.
Claim 5
Dependent Claim
46 words
A method according to claim 1 wherein said dock bottom conveyor has a fixed path and including the step of adjusting the position of said block on said bottom conveyor so as to insure proper registry of the block with the other blocks during said assembly.
Claim 6
Dependent Claim
57 words
A method according to claim 1 including the step of providing a rotary shaft extending over the dock bottom and said transferring operation comprises the step of sliding said hull block axially of said rotary shaft to overlie said dock bottom, and then rotating said shaft to thereby rotate said hull block down onto said bottom conveyor.
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) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |