Sailcloth

• US 6,725,885 B2
• Filed: 05/22/2001
• Issued: 04/27/2004
• Est. Priority Date: 05/22/2001
• Status: Expired due to Term

• Current Assignee: North Sails Group, LLC (North Technology Group LLC)
• Original Assignee: North Sails Group, LLC (North Technology Group LLC)
• Inventors: Mahr, Peter Frank
• Primary Examiner(s): Calvert, John J.
• Assistant Examiner(s): Muromoto, Jr., Robert H.
• Application Number:
  US09/862,366
• Publication Number:
  US 20020177377A1
• Time in Patent Office: 1,071 Days
• Field of Search: 139/383.R, 139/420.A, 139/426.R, 442/203
• US Class Current: 139/383.00R
• CPC Class Codes: B63H 9/0678 Laminated sails
• CPC Class Codes: D03D 15/00 Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
• CPC Class Codes: D03D 15/283 synthetic polymer-based, e.g. polyamide or polyester fibres cellulose-based artificial fibres D03D15/225
• CPC Class Codes: D03D 15/567 Shapes or effects upon shrinkage
• CPC Class Codes: D03D 7/00 Woven fabrics designed to be resilient, i.e. to recover from compressive stress
• CPC Class Codes: D10B 2331/04 polyesters, e.g. polyethylene terephthalate [PET]
• CPC Class Codes: D10B 2507/04 Sails
• CPC Class Codes: Y10T 442/3179 Woven fabric is characterized by a particular or differential weave other than fabric in which the strand denier or warp/weft pick count is specified
• CPC Class Codes: Y10T 442/322 Warp differs from weft

Abstract

A warp oriented woven sailcloth is provided in warp yarns are relatively uncrimped relative to the fill yarns. The yarn weight ratios (fill vs. warp) are 1.0 to 1 and 0.22 to 1.

Claims

1. A sailcloth comprising a woven cloth of heat shrinkable fill and warp yarns, the weight ration of the fill yarns to the warp yarns being between 1.0 to 1 and 0.22 to 1, said cloth having a density in the warp of 970 to 1,500 and a density in the fill being greater than 1,400.

2. The sailcloth of claim 1 wherein the warp yarns have a denier of from 100 to 2,000 and the fill yarns have a denier of 30 to 1,000.

3. The sailcloth of claim 1, wherein the warp yarns comprise monofilaments.

4. The sailcloth of claim 1 wherein the heat shrinkable yarns comprise polyester yarns.