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US 9,234,610 B2Granted
Aluminum foil based hose
AssigneeParker-Hannifin Corporation
InventorsNikhil Baxi, Paul Alan Guess, Eugene A. Dianetti
Life of this patent
Estimating the term…
Abstract
An ultra low permeability fluid member for conveying a fluid (e.g., a hose, tube, etc.) having a metal vapor barrier layer (22) formed around an inner tube (14). The metal vapor layer (22) is formed from one or more metal strips (40a, 40b) having edge portions (44) that are bonded so as to seal the vapor barrier layer (22) preventing permeation of vapor.
Claims20
A hose member for conveying fluid comprising:
- a first tubular layer;
- a metal vapor barrier layer formed by at least one strip of metal surrounding the first tubular layer;
- and
- a second tubular layer surrounding the metal vapor barrier layer;
- wherein the at least one metal strip has edge portions joined together to form at least one seam, each edge portion having an outer face and an inner face, the inner faces being juxtaposed to form opposing faces, the opposing faces of the edge portions being metal-to-metal welded together;
- and wherein the at least one seam is folded over a portion of the metal strip adjacent the seam.
3 more elements
A method of making a hose comprising:
- providing a first tubular layer forming a conduit for the flow of fluid;
- forming a metal vapor barrier layer with at least one strip of metal surrounding the first tubular layer, the metal vapor barrier layer having at least one radially outwardly extending seam running in the longitudinal direction of the hose that is folded over a portion of the metal strip adjacent the seam, the seam being formed by edge portions of the at least one strip, the edge portions having an outer face and an inner face, the inner faces being juxtaposed to form opposing faces;
- welding together the opposing faces of the at least one strip of metal to form a metal-to-metal weld;
- and
- providing a second tubular layer surrounding the metal vapor barrier layer.
2 more elements
A hose member for conveying fluid comprising:
- a first tubular layer;
- a metal vapor barrier layer surrounding the first tubular layer, the metal vapor barrier layer formed as a metal tube having at least one longitudinal seam formed radially outward from the metal tube, the longitudinal seam formed by edge portions of the metal vapor barrier layer that are juxtaposed to form opposing faces, the longitudinal seam folded over a portion of the metal tube adjacent the longitudinal seam with the opposing faces of the metal vapor barrier layer being metal-to-metal welded together;
- and
- a second tubular layer surrounding the metal vapor barrier layer.
1 more element
Dependencies are inferred from the claim text.