Zero moment furling swivel
AssigneeSolution Inc.
InventorsThomas Omohundro, Steve Wilson
Life of this patent
Estimating the term…
Abstract
The disclosed device is directed toward a furling swivel mechanism comprising a liner defining a vertical centerline. An inner sleeve is disposed on the liner and the inner sleeve defines an inner sleeve recess. An outer sleeve is rotatably coupled to the inner sleeve and the outer sleeve defines an outer sleeve recess. A headsail yoke is coupled to the inner sleeve recess. A halyard yoke is coupled to the outer sleeve recess. The inner sleeve recess and the outer sleeve recess are configured to form a zero moment along the vertical centerline.
Claims12
A furling swivel mechanism comprising:
- a liner defining a vertical centerline;
- an inner sleeve disposed on said liner, said inner sleeve defining an inner sleeve recess, wherein said inner sleeve includes an inner sleeve recess load portion defined by a radius about a geometric center;
- an outer sleeve rotatably coupled to said inner sleeve, said outer sleeve defining an outer sleeve recess, wherein said outer sleeve includes an outer sleeve recess load portion defined by another radius about another geometric center;
- a headsail yoke coupled to said inner sleeve recess;
- a halyard yoke coupled to said outer sleeve recess;
- and
- said inner sleeve recess and said outer sleeve recess configured to form a zero moment along said vertical centerline.
A method of maintaining a zero moment for a furling swivel mechanism including an inner sleeve recess retaining a head of sail yoke and an outer sleeve recess retaining a halyard yoke, the method comprising:
- translating a moment about the inner sleeve recess to a vertical centerline of the furling swivel mechanism;
- altering an inner sleeve recess shape and an inner sleeve recess location relative to said vertical centerline for a predetermined head of sail angle, said inner recess location definable by a radius about a geometric center of said inner sleeve recess, said inner sleeve recess shape definable by a dimension of said radius;
- translating another moment about the outer sleeve recess to said vertical centerline of the furling swivel mechanism;
- and
- altering an outer sleeve recess shape and an outer sleeve recess location relative to said vertical centerline for a predetermined halyard angle, said outer recess location definable by a radius about a geometric center of said outer sleeve recess, said outer sleeve recess shape definable by a dimension of said radius.
Dependencies are inferred from the claim text.