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US 4,535,825 AGranted
Sail batten improvements
OwnerJohn Hackneyinventor
Life of this patent
Estimating the term…
Abstract
Sail battens for full battened sails are provided on their fore ends with luff caps that have an angled leading edge. The improved battens are used in sail batten pockets that do not extend perpendicular to the sail luff to prevent the batten fore end from wearing holes in the batten pockets as occurs with battens having square ends when used in such angled batten pockets.
Claims13
A batten for a full battened sail provided on its fore end with a luff cap that comprises:
- a fore portion and an integral aft portion,
- means on said aft portion to attach said luff cap to said batten,
- said fore portion having a leading edge that for the majority of its length defines a straight line which forms a single acute angle with the longitudinal axis of said batten.
A full battened sailcraft sail comprising:
- a foot, a luff, a head and a leach,
- a series of sail batten pockets spaced apart along said sail between its foot and head, each pocket extending substantially the full distance between said luff and said leech,
- the longitudinal axis of at least some of said pockets defining relative to said luff a different acute angle from other of said pockets,
- open aft ends in said pockets at said leech,
- closed, straight fore ends in said pockets adjacent said luff that run substantially parallel to said luff, and
- battens in said pockets, said battens having on their fore ends luff caps that comprise:
- a fore portion and an integral aft portion,
- means on said aft portion attaching said luff cap to said batten,
- said fore portion having a leading edge that for the majority of its length defines a straight line which forms a single acute angle with the longitudinal axis of said batten,
- said leading edges of said luff caps of said battens being positioned in said pockets to run substantially parallel to said sail luff.
7 more elements
A luff cap for a batten of a full battened sail comprising:
- a fore portion and a integral aft portion,
- means on said aft portion to attach said luff cap to a batten,
- said fore portion having a leading edge that for the majority of its length defines a straight line which will form a single acute angle with the longitudinal axis of said batten to which said luff cap is attached.
Dependencies are inferred from the claim text.