# US 7,743,793 B2 · Hose construction > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,743,793 B2 - Document ID: US7743793B2 - Status: Granted - Kind: B2 - Application number: 11/392,239 - Filed: 2006-03-29 - Published: 2007-02-08 - Granted: 2010-06-29 - Earliest claimed: 2005-03-30 - Assignees: Novaflex Hose Ltd - Inventors: Hubert Lord; Mario Bedard - Web page: https://patentgrep.com/patent/US7743793B2 ## CPC - F16L 11/081: {comprising one or more layers of a helically wound cord or wire (in combination with braided layers F16L11/088)} - F16L 11/12: with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting (F16L11/11 takes precedence) - F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL ## 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. ## Claims ### Claim 1 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. ### Claim 2 (depends on 1) The hose as claimed in claim 1 wherein said internal layer is resistant to a material to be transported by said hose. ### Claim 3 (depends on 1) The hose as claimed in claim 1 wherein said internal layer includes a material that reduces the friction along said passageway. ### Claim 4 (depends on 1) The hose as claimed in claim 1 wherein said external layer includes vibration resistant material. ### Claim 5 (depends on 1) The hose as claimed in claim 1 wherein said first and said at least a second generally helical coil is selected from the group consisting of steel, plastic, or composite. ### Claim 6 (depends on 1) The hose as claimed in claim 1 further including at least a second reinforcing layer disposed between said first generally helical coil and said internal layer. ### Claim 7 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. ### Claim 8 (depends on 7) The hose as claimed in claim 7 further includes a first filler layer disposed between said first and said second internal coils and a second filler layer disposed between said first and said second external coils. ### Claim 9 (depends on 7) The hose as claimed in claim 7 further includes a first reinforcement layer disposed between said first and said second internal coils and a second reinforcement layer disposed between said first and said second external coils. ### Claim 10 (depends on 7) The hose as claimed in claim 7 further including at least one reinforcement layer and at least one filler layer disposed between said internal and said external layers. ### Claim 11 (depends on 7) The hose as claimed in claim 7 including a first coil layer including said first two coils, a second coil layer including said second two coils, and a filler layer disposed between said first and said second coil layers. ### Claim 12 (depends on 7) The hose as claimed in claim 7 including a first coil layer including said first two coils, a second coil layer including said second two coils, and a reinforcing layer disposed between said first and said second coil layers. ### Claim 13 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. ### Claim 14 (depends on 13) The hose as claimed in claim 13 further including at least a second reinforcing layer disposed between said first generally helical coil and said interior layer. ### Claim 15 (depends on 1) The hose as claimed in claim 1 further including four generally helical coils, wherein a first two coils are wound in said first direction and a second two coils are wound in said second direction. ### Claim 16 (depends on 15) The hose as claimed in claim 15 further including a first and a second internal coil wound in said first and said second directions, respectively, and a first and a second external coil wound in said first and said second directions, respectively. ### Claim 17 (depends on 15) The hose as claimed in claim 15 including a first coil layer including said first two coils and a second coil layer including said second two coils.