Hose
AssigneeBHP Billiton Petroleum Pty Ltd.
InventorsRaymond Burke, Eric Davis, Gerard Hall, Matthew Ridolfi, Simon Thorp, Joel Witz
Life of this patent
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Abstract
A hose (10) comprising a tubular body (12) of flexible material arranged between an inner and an outer helically wound wire (22, 24). The hose (10) further comprises an axial strengthening means (20) adapted to reduce deformation of the tubular body (12) when the tubular body (12) is subjected to axial tension, the axial strengthening means (20) being adapted to exert a radially inward force on at least part of the tubular body (12) when axial strengthening means (20) is subjected to axial tension.
Claims15
A hose comprising a tubular body of flexible material arranged between an inner and an outer helically wound wire, the tubular body serving to transport fluid through the hose and to prevent fluid leakage through the body, wherein the tubular body comprises at least one reinforcing layer and at least one sealing layer, and wherein the hose further comprises an end fitting fitted to an end thereof for sealing the end of a hose, wherein the end fitting comprises:
- an inner member adapted to be disposed at least partially within the hose;
- and a sealing ring adapted to seal at least part of the tubular body between the sealing ring and the inner member;
- wherein the sealing member comprises a sealing ring and a compression member for compressing the sealing ring into sealing engagement with said part of the tubular body, and the compression member is tightenable against the sealing member in order to selectively increase or decrease the compression force of the compression member against the sealing member, the compression member being made from a material which contracts less than the sealing ring when subjected to cooling.
A method of making a hose comprising:
- (a) wrapping a wire around a tubular mandrel to form an inner coil;
- (b) wrapping a sheet material around the tubular mandrel and the inner coil order to provide a tubular body formed of the sheet material, wherein the tubular body serves to transport fluid through the hose and to prevent fluid leakage through the body, and wherein the tubular body comprises at least one reinforcing layer and at least one sealing layer;
- (c) wrapping a wire around the tubular body to form an outer coil;
- (d) removing the hose from the mandrel;
- (e) disposing an inner member in an open end of the hose;
- (f) applying a sealing ring over an outer surface of the tubular body;
- and
- (g) applying a compression member over the sealing ring, and compressing the sealing member into sealing engagement with the tubular member and the inner member using the compression member, wherein the compression member is made of material which contracts less than the sealing ring when subjected to cooling.
Dependencies are inferred from the claim text.