Contitech Usa, Inc.

The Goodyear & Tire Rubber Company

Craig Boche

Jeremy Jay Lidgett

Jenny Zhaoxia Yu

John Anthony Brookes

Anh Burrowes

Robert Kozak

Methods of making hose fittings include providing a stem having a fluid conduit, a first end, a second end with a raised shoulder, and a crimp region disposed between the first end and the second end. A swivel tube nut is placed over the stem, and the swivel tube nut is retained on the stem the by the raised shoulder. A ferrule is thereafter placed over the first end of the stem, and the ferrule comprises a partially or fully formed octagonal wrench surface, formed prior to. The ferrule is then crimped, at the octagonal wrench surface, onto the crimp region of the stem.

Eight sided forged ferrule staking crimped fitting and method of manufacture thereof

A hose includes an inner tube defining a central longitudinal axis there through, and is formed of a vulcanized rubber and a plurality of rod shaped particles orientated substantially parallel with the central longitudinal axis, along with other typical materials. The inner tube has a tube wall thickness (t) of between about 0.5 mm to about 1.5 mm, and the plurality of rod shaped particles is incorporated in an amount of 10% or less by weight. The hose further includes a tie layer directly surrounding the inner tube, a first reinforcement layer surrounding the tie layer, and at least a second reinforcement layer surrounding the first reinforcement layer. An interlayer is interposed between the first and the second reinforcement layer, and the interlayer bonds the first reinforcement layer to the second reinforcement layer. An outside cover surrounds the second reinforcement layer, as well as any additional layers.

High pressure compact spiral hydraulic hose

Methods of making hose fittings include providing a stem having a fluid conduit, a first end, a second end with a raised shoulder, and a crimp region disposed between the first end and the second end. A swivel tube nut is placed over the stem, and the swivel tube nut is retained on the stem the by the raised shoulder. A ferrule is thereafter placed over the first end of the stem, and the ferrule comprises a partially formed hexagonal wrench surface, formed prior to. The ferrule is then crimped, at the hexagonal wrench surface, onto the crimp region of the stem.

Six sided forged ferrule staking crimped fitting and method of manufacture thereof

An improved crimped swivel fitting ( ) for a gasoline hose ( ) is disclosed. The fitting is a three-piece assembly ( ). A male stem ( ) is provided with a shoulder ( ) at one external end ( A) and a series of barbs ( ) at the opposing end ( B). A swivel nut ( ) with an external threading, is slid over the stem barbs ( ) and abuts directly against the shoulder ( ). The barbed stem end ( B) is inserted into a hose ( ) to which a ferrule ( ) with internal notching ( ) has already been attached. An internal shoulder ( ) of the ferrule ( ) rests in a groove ( ) on the stem ( ) and directly abuts against a shoulder ( ) of the swivel nut ( ). The ferrule ( ) is crimped onto the stem ( ), thereby securing the fitting to the hose, and locking the swivel nut ( ) onto the assembly ( ).

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Norfolk, NE, United States of America

Craig Boche