EP0375111A1
Expired / Lapsed
EP
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Improvements in sails
Assignee: GAASTRA INTERNATIONAL LICENSING NV
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Filing: 1989-09-08
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Granted: —
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Expires: 2009-09-08
Abstract
Abstract A sail is provided which is made of a relatively stiff sheet material, as compared to conventional sail-making materials. The stiffness of the sheet material permits areas of roach in the sail to be supported without any battens or the like in view of the property of the material to resist simultaneous curvature of the material in a direction transverse to the curvature of the sail when the sail is being used.
Inventors
- 👤 Christopher Ralph Campion
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 21:56
CPC Classifications
B; B63; B63H; B63H9/00; B63H9/04; B63H9/06; B63H9/067
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
78 words
A sail having one or more areas of roach, the sail being made wholly or primarily of sheet material, which material is adapted to assume in use a curved shape to provide draft or camber for the sail, characterized in that the material resists significant simultaneous generally transverse curvature of the sail such that the one or more areas of roach are supported wholly or primarily by the sheet material when it curves during use of the sail.
Claim 2
Dependent Claim
78 words
A sail having one or more areas of roach, the sail being made wholly or primarily of sheet material, which material is adapted to assume in use a curved shape to provide draft or camber for the sail, characterized in that the material resists significant simultaneous generally transverse curvature of the sail such that the one or more areas of roach are supported wholly or primarily by the sheet material when it curves during use of the sail.
Claim 3
Dependent Claim
27 words
A sail according to Claim 1 further characterized in that the sheet material has a tensile modulus of at least 100 kg/mm², as measured by ASTM D882.
Claim 4
Dependent Claim
29 words
A sail as claimed in claim 1 further characterized in that the sheet material has a tensile modulus of from 350 to 500 kg/mm² as measured by ASTM D882.
Claim 5
Dependent Claim
51 words
A sail as claimed in any preceding claim further characterized in that it comprises a luff sleeve for receiving a mast, the luff sleeve being made from material having a high degree of flexibility, the luff sleeve being joined to the synthetic plastics film material constituting the remainder of the sail.
Claim 6
Dependent Claim
27 words
A sail as claimed in Claim 4 further characterized in that the material of the luff sleeve is woven polyester with a polyethylene film laminated to it.
Claim 7
Dependent Claim
27 words
A sail as claimed in any preceding claim further characterized in that the sheet material is a polyester film having a thickness of at least 100 microns.
Claim 8
Dependent Claim
28 words
A sail as claimed in any one of claims 1 to 5 further characterized in that the sheet material has a thickness of from 100 to 300 microns.
Claim 9
Dependent Claim
29 words
A sail as claimed in any preceding claim further characterized in that the area of the sail made of the sheet material is made in a one piece panel.
Claim 10
Dependent Claim
55 words
A sail made from sheet material, the sail having roach extending beyond a straight line joining the head to the clew of the sail, characterized in that the roach has substantially no localized stiffening to support it, and the sheet material has a tensile modulus of at least 100 kg/mm² as measured by ASTM D882.
Claim 11
Dependent Claim
55 words
A sail made from sheet material, the sail having roach extending beyond a straight line joining the head to the clew of the sail, characterized in that the roach has substantially no localized stiffening to support it, and the sheet material has a tensile modulus of at least 100 kg/mm² as measured by ASTM D882.
Claim 12
Dependent Claim
29 words
A sail as claimed in Claim 9 further characterized in that the sheet material has a tensile modulus of from 350 to 500 kg/mm² as measured by ASTM D882.
Claim 13
Dependent Claim
58 words
A sail as claimed in claim 9 or claim 10 further characterized in that it comprises a luff sleeve for receiving a mast, the luff sleeve being made from material having a high degree of flexibility as compared to the sheet material, and the luff sleeve being joined to the sheet material constituting the remainder of the sail.
Claim 14
Dependent Claim
29 words
A sail as claimed in Claim 11 further characterized in that the material of the luff sleeve is a woven polyester mesh with a polyethylene film laminated to it.
Claim 15
Dependent Claim
30 words
A sail as claimed in any of claims 9 to 12 further characterized in that the sheet material is a polyester film having a thickness of at least 100 microns.
Claim 16
Dependent Claim
28 words
A sail as claimed in any one of claims 9 to 12 further characterized in that the polyester film has a thickness of from 100 to 300 microns.
Claim 17
Dependent Claim
32 words
A sail as claimed in any of claims 9 to 14 further characterized in that the area of the sail made of the sheet material is made in a one piece panel.
Claim 18
Dependent Claim
57 words
A sail having a luff and roach in the leech extending beyond a straight line joining the head and the clew of the sail, characterized in that the sail, apart form the region of the luff, is made from sheet synthetic plastics material having a tensile modulus of at least 100 kg/mm² as measured by ASTM D882.
Claim 19
Dependent Claim
57 words
A sail having a luff and roach in the leech extending beyond a straight line joining the head and the clew of the sail, characterized in that the sail, apart form the region of the luff, is made from sheet synthetic plastics material having a tensile modulus of at least 100 kg/mm² as measured by ASTM D882.
Claim 20
Dependent Claim
31 words
A sail as claimed in Claim 16 further characterized in that the sheet synthetic plastics material has a tensile modulus of from 350 to 500 kg/mm² as measured by ASTM D882.
Claim 21
Dependent Claim
52 words
A sail as claimed in Claim 16 or 17 further characterized in that it comprises a luff sleeve for receiving a mast, the luff sleeve being made from material having a high degree of flexibility, the luff sleeve being joined to the sheet synthetic plastics material constituting the remainder of the sail.
Claim 22
Dependent Claim
32 words
A sail as claimed in any of Claims 16 to 18 further characterized in that the sheet synthetic plastics material is a polyester film having a thickness of at least 100 microns.
Claim 23
Dependent Claim
28 words
A sail as claimed in any one of claims 16 to 18 further characterized in that the sheet material has a thickness of from 100 to 350 microns.
Claim 24
Dependent Claim
33 words
A sail according to any preceding claim further characterized in that reinforcing strips are fixed to edges of the sheet material to prevent or inhibit tearing of the sheet starting at the edges.
Claim 25
Dependent Claim
38 words
A sail as claimed in any preceding claim further characterized in that it has roach extending downwardly beyond a straight line joining the tack to the clew, the lower edge having no localized stiffening to support that roach.
References Cited (Backward Citations)
FR1149799A
Cited
US2909142A
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DE2501326A1
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EP0056657A2
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DE3531121A1
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EP0224729A1
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EP0249427A1
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