Ships – Building – Canal and ferry boats
Patent
1979-01-12
1981-06-09
Blix, Trygve M.
Ships
Building
Canal and ferry boats
114 61, B63B 700
Patent
active
042715490
ABSTRACT:
A relatively small watercraft includes a pair of spaced and usually parallel pontoons. A personnel station extends generally between and above the two spaced pontoons. A structural frame of tubular members or bars supports the personnel station; the tubular members may be selectively connected to the pontoons, or the frame may be permanently connected to them. In one embodiment wherein the structural frame and the pontoons are only temporarily connected, a plurality of eye bolts and specially positioned slots are utilized so that the eye bolts need never be removed from the watercraft. (In this embodiment, there are no connecting pieces to ever get lost, even when the three main sub-assemblies of the watercraft are disassembled.) The eye bolts are aligned longitudinally with the slots for disassembly, and turned transversely to the slots to hold the tubular members to the pontoons. Dimples or recesses in the tubular members can be provided to inhibit unwanted rotation of an eye bolt. Special clips or slot-filling members may also be used to prevent unwanted rotation of the eye bolts.
REFERENCES:
patent: 1142192 (1915-06-01), Morgan
patent: 1413976 (1922-04-01), Fiehler
patent: 2178170 (1939-10-01), Hager
patent: 2676619 (1954-04-01), Consoletti
patent: 3121887 (1964-02-01), Baretta
patent: 3473502 (1969-10-01), Wittkamp
Advanced Marine Concepts, Inc.
Blix Trygve M.
McHugh Charles W.
Sotelo Jesus D.
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