Composite string material
AssigneeHoyt Archery, Inc.
InventorsGideon S. Jolley, John Christopher Webster
Life of this patent
Estimating the term…
Abstract
A composite string such as a bowstring or cable used in archery bows and crossbows includes multiple types of strands or multiple types of materials in its strands. The different materials or strands have different properties such as stiffness, strength, abrasion resistance, or density. The string therefore has specialized properties such as different properties when subjected to different tensile loads or optimized durability. A serving material is also used to bind strands of material to the string for silencing, vibration dampening, improving durability, or providing additional rigidity to select portions of the string.
Claims23
A composite archery string, comprising:
- a plurality of generally longitudinally arranged load carry structures comprising at least a first structure and a second structure, the first structure having a first length, the second structure having a second length, the first length being different from the second length;
- wherein upon application of a first tensile load to the plurality of generally longitudinally arranged load carry structures, the first structure bears a first portion of the first tensile load relative to the second structure;
- wherein upon application of a second tensile load to the plurality of generally longitudinal load carry structures, the first structure bears a second portion of the second tensile load relative to the second structure, the second portion being less than the first portion, the second tensile load being greater than the first tensile load.
A composite archery string, comprising:
- a plurality of generally longitudinally arranged load carry structures comprising at least a first structure and a second structure, the first structure having a first length, the second structure having a second length, the first length being different from the second length;
- a matrix material configured to surround a section of the generally longitudinally arranged load carrying structures;
- wherein upon application of a first tensile load to the plurality of generally longitudinally arranged load carry structures, the first structure bears a first portion of the first tensile load relative to the second structure;
- wherein upon application of a second tensile load to the plurality of generally longitudinally arranged load carry structures, the first structure bears a second portion of the second tensile load relative to the second structure, the second portion being less than the first proportion, the second tensile load being greater than the first tensile load.
A composite archery string, comprising:
- a plurality of strands comprising a first segment of strands, a second segment of strands, and a generally longitudinal axis, the first segment of strands and the second segment of strands being configured to entwine in a directional orientation that extends predominantly along the generally longitudinal axis, the first segment of strands comprising a first length and a first material, the second segment of strands comprising a second length and a second material, the first length being different from the second length, the first material being different from the second material.
A composite archery string, comprising:
- a plurality of strands comprising a first segment of strands, a second segment of strands, and a generally longitudinal axis, the first segment of strands and second segment of strands each extending substantially parallel to the generally longitudinal axis, the first segment of strands comprising a first length and a first material, the second segment of strands comprising a second length and a second material, the first length being different from the second length, the first material being different from the second material, the second segment of strands being operably coupled to the first segment of strands, the second segment of strands having a greater resistance to bending than the first segment of strands.
Dependencies are inferred from the claim text.