Hose construction
AssigneeImperial-Eastman Corporation
InventorsAnil H. Chudgar, Richard L. Fischer, Marvin E. Holmgren
Life of this patent
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AssigneeImperial-Eastman Corporation
InventorsAnil H. Chudgar, Richard L. Fischer, Marvin E. Holmgren
Estimating the term…
An improved hose construction and method of forming the same wherein a reinforcement layer is bonded to a thermoplastic core by a solventless bonding layer defining an inner thermal weld portion substantially autogenous with the outer surface portion of the core tube and an outer portion mechanically interlocked with the confronting inner portion of the reinforcement layer. The bonding layer is thermally formed to be autogenous with the outer surface portion of the core tube and may include an added layer of thermoplastic material which is concurrently fused to define the fused bonding layer. The added layer is compatible with the core tube outer surface portion and is preferably formed of similar thermoplastic material. The reinforcement layer is wrapped about the core tube under tension to provide an embedment thereof in the bonding layer to effect a positive mechanical interlocking therebetween.
The method of forming a hose comprising the steps of:
The method of forming a hose as set forth in claiim 1 wherein the reinforcement layer fibers are formed of a thermoplastic material having a fusion temperature higher than that of said core tube surface portion.
Dependencies are inferred from the claim text.