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US 5,052,444 AGranted
Reinforced fluid hose having on-bonded tape
AssigneeThe Fluorocarbon Company
InventorsJames W. Messerly, Lawrence E. Bouscher, James E. Stahl
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AssigneeThe Fluorocarbon Company
InventorsJames W. Messerly, Lawrence E. Bouscher, James E. Stahl
Estimating the term…
Provided is a flexible reinforced hose (50) having an inner core tube (2) for conveying fluids surrounded by two layers of tensioned fibrous reinforcement layer (4, 8) between which is disposed a spirally wound flexible polymeric tape (6) which is unbonded to either of the reinforcement layers and free to move relative thereto under flexing and pressure pulsing conditions and which is adapted to prevent moisture from pentrating core tube (2) from outside of hose (50). Other preferred embodiments include hose (60) in which a flexible polymeric tape (12) is applied longitudinally and hose (70) where the tape is a flexible polymeric metal composite tape (20) as well as hose (32) in which the reinforcement layers (32, 36) are oppositely helically wound.
An improved flexible reinforced hose for conveying fluids comprising a flexible polymeric core tube, at least two layers of tensioned fibrous reinforcement material disposed about the core tube, and an outer flexible protective sheath disposed about the reinforcement material, wherein the improvement is characterized by said hose including a flexible polymeric tape layer disposed between the reinforcement layers, said tape completely surrounding the core tube and having an overlapping region and in un-bonded relationship with either of the reinforcement layers so as to minimize stress imposed thereupon during bending and fluid pressure pulsing of the hose, and said tape layer adapted to prevent moisture from penetrating through the core tube from outside of the hose and contaminating the fluid being conveyed therethrough.
Dependencies are inferred from the claim text.