Ships – Building
Patent
1992-09-29
1994-06-14
Mitchell, David M.
Ships
Building
114 74R, B63B 320
Patent
active
053200551
ABSTRACT:
In a double-layered vessel wall construction, which has two transversally spaced longitudinal wall layers, and wall layer-connecting plates, each of which has one longitudinal edge weldingly joined in a plate edge-to-plate edge joint in one of the longitudinal wall layers, and an opposite longitudinal edge weldingly joined in a plate edge-to-plate edge joint in the other of the longitudinal wall layers, so as to divide space enclosed by the wall construction into a plurality of cells that are typically closed at opposite ends by transverse bulkheads, cell-to-cell access openings are longitudinally staggered and located near cell ends. Accordingly, forced air ventilation can sweep through virtually all of the space enclosed within the wall construction, and a worker who falls while climbing from one cell to another via an access hole can fall no further than the vertical extent of the two cells which are interconnected by that access opening.
REFERENCES:
patent: 855154 (1907-05-01), Babcock
patent: 3064612 (1962-11-01), Gardner et al.
patent: 3623626 (1971-11-01), Bridges
patent: 4660491 (1987-04-01), Murata et al.
patent: 5085161 (1992-02-01), Cuneo et al.
patent: 5086723 (1992-02-01), Goldbach et al.
patent: 5090351 (1992-01-01), Goldbach et al.
Avila Stephen P.
Marinex International Inc.
Metro Machine Corp.
Mitchell David M.
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