Pull-out faucet hose

Pipe joints or couplings – For plural component line – Metal – elastomeric – and fabric layers

Patent

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Details

285251, 285249, F16L 3902

Patent

active

061060275

ABSTRACT:
A flexible hose assembly used for pull-out faucets includes a hose having an inner tube and a spiral wound outer jacket. The hose assembly further includes at least one end connector disposed on an end of the hose that includes a jacket fitting having a tubular portion disposed between a spiral wound outer jacket and the inner tube. The tubular portion of the jacket fitting includes an externally threaded portion that engages the inner surface of the spiral wound outer jacket. The jacket fitting further includes a flange disposed at a distal end of the tubular portion wherein the flange abuts a distal end of an outer ferrule. The end connector also includes an insert fitting having a flange positioned on a distal end of a tubular portion. The tubular portion includes at least one external barb that engages the inner surface of the hose. A coupling nut with a central bore with a shoulder disposed therein receives the jacket fitting and the flange of the jacket fitting abuts the shoulder of the central bore. The jacket fitting secures the coupling nut to the hose. The coupling nut includes either female internal threads disposed in the central bore or male threads disposed on the exterior of the nut for attachment to connectors of the pull-out faucet. The wall thickness of the inner tube is desirably at least about 0.065 inches.

REFERENCES:
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Four pages of technical information titled "Profile Extrusion Processing Guide" for Engage polyolefin elastomer, a product of DuPont Dow Elastomers, effective Apr. 1, 1995.
Two-page Engage product chart, listed with density in increasing order, undated.
Two-page Engage product information sheet, dated Nov. 1996.

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