Ships – Watercraft with means used in providing sailpower – Having specifically defined hull shape
Patent
1979-01-08
1981-09-29
Blix, Trygve M.
Ships
Watercraft with means used in providing sailpower
Having specifically defined hull shape
114 90, 114103, 114111, 114102, 174177, 174208, 174138D, 174 85, B63B 3500, B63H 900
Patent
active
042916399
ABSTRACT:
An electrical isolation system is disclosed for use on sailboats having metal masts and shrouds for preventing accidental shocking or electrocution of persons who contact lower portions of the mast or shrouds and/or electrical conductors appended thereto when the top of the mast or shrouds come into contact with an electrical high voltage distribution or transmission line with the system including an insulating member separating the upper portion of the mast from a lower portion of the mast.
REFERENCES:
patent: 11217 (1854-07-01), Forbes
patent: 159105 (1875-01-01), Light
patent: 403482 (1889-05-01), O'Bierne
patent: 481912 (1892-08-01), Noll
patent: 1039122 (1912-09-01), Hagborg
patent: 1304342 (1919-05-01), Martin
patent: 1426337 (1922-08-01), Sperry
patent: 2204026 (1940-06-01), Peters
patent: 2519230 (1950-08-01), Crankshaw
patent: 3105870 (1963-10-01), Raila
patent: 3505967 (1970-04-01), Peterson
patent: 3990013 (1976-11-01), Badger
Blix Trygve M.
Keen D. W.
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