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US 2012/0067452 A1Published application
Thermoplastic hoses for airborne vehicles
OwnerValerie Briandinventor
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Abstract
Embodiments of the present invention provide thermoplastic hoses for an airborne vehicles. The hoses have an inner layer comprised of polyamide and an external layer of polyamide, and the hose is configured to allow the hose to both operate safely under pressures below 55 psi and withstand internal pressures of at least 15 pounds per square inch, and in specific embodiments, at least about 165 pounds per square inch. Specific embodiments of the hoses described are particularly useful on-board helicopters and smaller aircraft.
Claims20
A thermoplastic hose for an airborne vehicle, comprising:
- an inner layer comprised of a thermoplastic material and an external layer comprised of a thermoplastic material, wherein the thermoplastic material of the external layer has a stress at break value of greater than about 30 MPa;
- wherein the hose comprises a thickness and a diameter configured to allow the hose to convey fluid at operating pressures below about 55 pounds per square inch and withstand not less than about 15 pounds per square inch of pressure without failure.
A thermoplastic hose for an airborne vehicle, comprising:
- an inner layer comprised of a thermoplastic material and an external layer comprised of a thermoplastic material, wherein the thermoplastic material of the external layer has a density of less than about 1.4;
- wherein the hose comprises a thickness and a diameter configured to allow the hose to convey fluid at operating pressures below about 55 pounds per square inch and withstand not less than about 15 pounds per square inch of pressure without failure.
Dependencies are inferred from the claim text.