Furling sail and means for turning mast

Details Furling sail and means for turning mast Furling sail and means for turning mast

2005-05-17

2005-05-17

Avila, Stephen (Department: 3617)

Ships

Sail or control means therefor

Having means to vary shape of sail

C114S126000

Reexamination Certificate

active

06892660

ABSTRACT:
A sail that is fully battened by a plurality of essentially thin, spaced apart battens positioned at a steep angle on the sail. The sail is adapted to be furled around the mast. The battens are stiff enough to support a large roach of a square top sail and yet flexible enough to wrap around the mast. The mast is supported on bearings that allow the mast to turn about the mast's long axis with little friction to permit rapid furling and unfurling of the fully battened sail.

REFERENCES:
patent: 4149482 (1979-04-01), Hoyt
patent: 4633798 (1987-01-01), Skinner et al.
patent: 4838192 (1989-06-01), Stevenson, IV et al.
patent: 5333569 (1994-08-01), Henderson
patent: 5493988 (1996-02-01), Kollberg
patent: 5799601 (1998-09-01), Peay
patent: 6575112 (2003-06-01), Roeseler et al.

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