Robust preconditioned air hose
AssigneeIllinois Tool Works Inc.
InventorsScott Takayuki Koizumi, 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.
Claims21
-33. (canceled)
A cylindrical hose assembly, comprising:
- an external layer disposed on an outside of the cylindrical hose assembly and comprising a fabric made of a nylon material having a weight not exceeding approximately 11 ounces per square yard;
- an inner layer disposed on an inside of the cylindrical hose assembly;
- and
- an insulating layer disposed between the external layer and the inner layer and comprising a thermoplastic polymer;
- and
- wherein the cylindrical hose assembly is suitable for conveying pressurized air to an aircraft.
An air hose delivery assembly, comprising:
- an external layer comprising:
- a first panel comprising a fabric made of a nylon material having a weight not exceeding approximately 11 ounces per square yard;
- and
- a second panel combined with the first panel such that inner surfaces of the first panel and the second panel are disposed in mutually facing orientation, wherein at least one edge of the combined panels is secured to form a tubular structure.
An air hose delivery assembly, comprising:
- a first panel comprising a first edge and a second edge secured to one another to form a tubular structure, wherein the first panel comprises a fabric made of a nylon material having a weight not exceeding approximately 11 ounces per square yard;
- an inner layer disposed on an inside of the tubular structure;
- an insulating layer disposed between the wall of the tubular structure and the inner layer;
- and
- wherein the air hose delivery assembly is suitable for conveying pressurized air to an aircraft.
Dependencies are inferred from the claim text.