Light-weight code-zero headsail system

Details Light-weight code-zero headsail system Light-weight code-zero headsail system

2005-05-24

2005-05-24

Olson, Lars A. (Department: 3617)

Ships

Sail or control means therefor

Reefing and furling

C114S108000

Reexamination Certificate

active

06895882

ABSTRACT:
A headsail for a sailing boat includes a luff rope having a core of parallel filaments of high-tenacity polyester and a tightly braided polyester cover, affixed in proximity to the headsail's luff. An upper marine eye is affixed to an upper end of the luff rope, while a lower marine eye affixed to a lower end of the luff rope. A length of shrink-wrap tubing is disposed about a shank of each marine eye, and is firmly shrunk about both the shank of the corresponding marine eye, and about the luff rope in proximity to the shank. A drum affixed to the lower marine eye includes a bearing assembly having an upper race, and is disposed within the drum body which contains a lower race, the bearing assembly suspended between a plurality of lower balls disposed between the upper race and the lower race, and a single upper ball. Means for restricting an excursion of the upper race relative to the lower race prevents the lower balls from distortion beyond their breaking point.

REFERENCES:
patent: 3611969 (1971-10-01), Hood
patent: 3789790 (1974-02-01), Crall
patent: 3958523 (1976-05-01), Holmes et al.
patent: 3980036 (1976-09-01), Crall
patent: 4080917 (1978-03-01), Alter et al.
patent: 4248281 (1981-02-01), Hood
patent: 4723499 (1988-02-01), Furgang
patent: 5463970 (1995-11-01), Hartlmeier et al.
patent: 5890447 (1999-04-01), Bernson

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