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US 7,743,793 B2Granted
Hose construction
AssigneeNovaflex Hose Ltd
InventorsHubert Lord, Mario Bedard
Life of this patent
Estimating the term…
Abstract
The present invention provides a hose for transporting material from one destination to another and a method of constructing a hose. According to an exemplary embodiment, the hose may be constructed with two helical coils wound in opposing directions and multiple layers. The hose construction may provide a flexible hose with walls that resist kinking and rupture.
Claims17
A hose comprising:
- a plurality of layers including an internal layer defining an internal passageway disposed along a longitudinal axis of said hose and an external layer defining an exterior surface of said hose;
- a first and at least a second generally helical coil wound along said longitudinal axis of said hose, wherein said first generally helical coil is wound in a first direction and said second generally helical coil is wound in a second direction substantially opposite said first direction;
- at least one reinforcing layer disposed between said internal and said external layers, wherein said first generally helical coil is disposed about an internal surface of said at least one reinforcing layer and said at least a second generally helical coil is disposed about an external surface of said at least one reinforcing layer;
- and
- a filler layer disposed between said first generally helical coil and said at least one reinforcing layer.
2 more elements
A hose comprising:
- a plurality of layers including an internal layer defining an internal passageway disposed along a longitudinal axis of said hose and an external layer defining an exterior surface of said hose;
- at least four generally helical coils including a first and a second internal coils and a first and a second external coils, wherein two of said at least four coils are wound in a first direction and two of said at least four coils are wound in a second direction along said longitudinal axis of said hose, wherein said first and a second internal coils are wound in said first and said second directions, respectively, and said first and a second external coils are wound in said first and said second directions, respectively.
A hose comprising:
- an interior layer having a generally continuous interior surface defining an interior passageway disposed along a longitudinal axis of said hose;
- an exterior layer disposed about an exterior surface of said hose;
- at least one reinforcement layer disposed between said interior layer and said exterior layer;
- a first generally helical coil wound about said interior layer along said longitudinal axis of said hose and disposed between said interior layer and said at least one reinforcing layer, wherein said first generally helical coil is wound in a first direction;
- a second generally helical coil wound about said interior layer along said longitudinal axis of said hose and disposed between said at least one reinforcing layer and said exterior layer, wherein said second generally helical coil is wound in a second direction substantially opposite said first direction;
- and
- a filler layer disposed between said first generally helical coil and said at least one reinforcing layer.
4 more elements
Dependencies are inferred from the claim text.