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US 6,742,545 B2Granted
Hose construction
AssigneeParker-Hannifin Corporation
InventorsWilliam C. Fisher, Michael R. Swails
Life of this patent
Estimating the term…
Abstract
A flexible hose construction adapted for conveying fluids under pressures and capable of withstanding relatively high external pressures without collapsing. The tubular construction includes a first reinforcement layer, an inner jacket surrounding the first reinforcement layer, a second reinforcement layer surrounding the inner jacket, and outer jacket covering the second reinforcement layer.
Claims39
A tubular hose construction comprising:
- an first reinforcement layer formed of a first fiber material;
- an inner jacket surrounding the first reinforcement layer;
- a second reinforcement layer surrounding the inner jacket and formed of a second fiber material;
- an outer jacket covering the second reinforcement layer;
- a first elastomeric layer having a first inner radial surface, and a first outer radial surface;
- a helical reinforcement element spiral wound over the first elastomeric layer at a predetermined pitch angle measured relative to the longitudinal axis;
- and
- a tubular second elastomeric layer surrounding the helical reinforcement element and surrounded by the first reinforcement layer, the second elastomeric layer having a second inner radial surface and a second outer radial surface, the helical reinforcement element being encapsulated between the first outer radial surface of the first elastomeric layer and the second inner radial surface of the second elastomeric layer.
5 more elements
Dependencies are inferred from the claim text.