Robust preconditioned air hose
AssigneeHobart Brothers Company
InventorsScott Takayuki Kolzumi, Brian Michael Piety, William Taylor O'Connor
Life of this patent
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Abstract
A preconditioned air hose includes an abrasion-resistant external layer made of robust nylon, an insulating layer, and an inner layer. The robust external layer protects the air hose from wear and degradation due to abrasion. The external layer may be made of a fabric with an abrasion resistance of at least 22,000 cycles to failure as measured using the ASTM D 3884 standard. This external layer fabric may be composed of filaments having a linear density of about 1,000 denier. The external layer fabric may weigh about 10.8 ounces per square yard.
Claims33
An air delivery hose assembly, comprising an external layer comprising a fabric having an abrasion resistance of at least 22,000 cycles to failure as measured using the ASTM D 3884 standard.
A method of manufacturing an air hose assembly, comprising:
- creating at least one panel comprising an external layer made of a fabric having an abrasion resistance of at least 22,000 cycles to failure as measured using the ASTM D 3884 standard;
- folding the panel or combining two of the panels such that inner surfaces of the panels are disposed in mutually facing orientation;
- and
- securing at least one edge of the folded panel or combined panels to form a tubular structure.
An air delivery hose assembly, comprising:
- an external layer comprising a fabric made of nylon 6,6 having a linear density of between about 800 and 1200 denier and a weight of less than about 17 ounces per square yard;
- an insulating layer;
- and
- an inner layer;
- and
- wherein the layers are joined to form a tubular structure that, for a nominal exterior diameter of about 14 inches, has a weight of about 0.55 pounds per foot.
Dependencies are inferred from the claim text.