Ships – Spars – Masts and masting
Patent
1991-10-21
1993-02-23
Basinger, Sherman
Ships
Spars
Masts and masting
114 93, B63H 900
Patent
active
051880504
ABSTRACT:
A convertible mast assembly (10) for employing a windsurfing sail assembly (200) on a sailboat (100) having a drop-in mast receptacle (101); wherein, the mast assembly (10) comprises a receptacle unit (11) which fits in said drop-in mast receptacle (101); and, an adaptor unit (11) having one end (31) dimensioned to be received in the receptacle unit (11) and having the other end (33) dimensioned to be received in the mast (201) of the windsurfing sail assembly (200).
REFERENCES:
patent: 3270494 (1966-09-01), Holmes
patent: 4311107 (1982-01-01), Imre
patent: 4697534 (1987-10-01), Kettlestrings
patent: 4757778 (1988-07-01), Scaglia
patent: 4805545 (1989-02-01), Groth
patent: 4825792 (1989-05-01), De Vos
patent: 4964353 (1990-10-01), Morrelli
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