Hose
AssigneeBHP Billiton Petroleum Pty Ltd.
InventorsRaymond Burke, Eric Davis, Gerard Hall, Matthew Ridolfi, Simon Thorp, Joel Witz
Life of this patent
Estimating the term…
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.
Claims19
An end fitting for terminating an end of a hose comprising a tubular body of flexible material arranged between inner and outer gripping members, characterised in that the end fitting comprises:
- an inner member adapted to be disposed at least partially within the hose;
- a sealing member adapted to seal at least part of the tubular body fully around the circumference between the sealing member and the inner member;
- and a separate load transferring means adapted to transfer axial loads between the hose and the inner member in such a manner that said axial loads are diverted around the sealing member in order to reduce, or eliminate, the axial load on the hose between the sealing member and the inner member, and wherein the sealing member is adapted to seal against the tubular body independently of the application of axial loads between the hose and the inner member.
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, characterised in that the hose further comprises an end fitting fitted to an end thereof, wherein the end fitting comprises an inner member adapted to be disposed at least partially within the hose;
- a sealing member adapted to seal at least part of the tubular body fully around the circumference between the sealing-member an the inner member;
- and a separate load transferring means adapted to transfer axial loads between the hose and the inner member in such a manner that said axial loads are diverted around the sealing member in order to reduce, or eliminate, the axial load on the hose between the sealing member and the inner member, and wherein the sealing member is adapted to seal against the tubular body independently of the application of axial loads between the hose and the inner member.
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;
- (c) wrapping a wire around the tubular body to form an outer coil;
- and
- (d) removing the hose from the mandrel;
- characterised by the following steps:
- (e) disposing an inner member in an open end of the hose;
- (f) clamping a load transferring means to an outer surface of the hose;
- and
- (g) clamping a sealing member to an outer surface of the tubular body to seal against the tubular body independently of the application of axial loads between the hose and the inner member;
- wherein the load transferring means serves to transfer axial loads applied between the hose and the inner member in such a manner that said axial loads are diverted around the sealing member in order to reduce, or eliminate, any axial load on the hose between the sealing member and the inner member.
A method according to claim 17, further comprising the following step between step (b) and (c):
- (h) pulling a tubular axial strengthening member over a free end of the mandrel, so that the mandrel extends within the axial strengthening member, then pulling the axial strengthening member along the mandrel so that it at least partially covers the tubular body.
Dependencies are inferred from the claim text.