Mast for sailboats and the like

Details Mast for sailboats and the like Mast for sailboats and the like

1991-03-11

1992-07-21

Peters, Jr., Joseph F.

Ships

Spars

Masts and masting

114 391, B63B 1500

Patent

active

051313448

ABSTRACT:
A mast for use in sailboats and other sail-propelled craft has two elongated solid or hollow sections with confronting at least partially concave internal surfaces, and a plurality of transversely extending crosspieces between the internal surfaces. If the sections are hollow, they can be at least partially filled with foamed polyurethane and/or with elongated wooden or metallic tubes.

REFERENCES:
patent: 127047 (1872-05-01), Griffenberg
patent: 601494 (1898-03-01), Clapham
patent: 986258 (1911-03-01), Yost
patent: 2519230 (1950-08-01), Crankshaw
patent: 3415215 (1968-12-01), Plym
patent: 3724412 (1973-04-01), Blecker
patent: 3835804 (1974-09-01), Jackson
patent: 4072121 (1978-02-01), Anderson
patent: 4230060 (1980-10-01), McCoy
patent: 4909170 (1990-03-01), Smart

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