Pipe support
AssigneePolyflow LLC
InventorsJeffrey Kenneth Shorter, Liang Yu
Life of this patent
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Abstract
A method and apparatus for supporting a segment of reinforced thermoplastic pipe (RTP) are disclosed. The method comprises providing an end region of a segment of RTP body and as clamping elements of a clamp disposed around a covered portion of the end region are urged together to thereby support the end region at a fixed orientation, simultaneously opposing radially inwards collapse of at least one layer of the RTP body in the covered portion via a collapse resistant body disposed in a bore region of the covered portion.
Claims20
A method of supporting an end region of a reinforced thermoplastic pipe (RTP), comprising:
- providing an end region of a segment of RTP body;
- and
- as clamping elements of a clamp disposed around a covered portion of the end region are urged together to thereby support the end region at a fixed orientation, simultaneously opposing radially inwards collapse of at least one layer of the RTP body in the covered portion via a collapse resistant body disposed in a bore region of the covered portion.
Apparatus for resisting collapse of a portion of reinforced thermoplastic pipe (RTP) body, comprising:
- a collapse resistant body that comprises a first end and a further end disposed in a spaced apart relationship with the first end with a whole length of the collapse resistant body being at least 15 cm and a substantially cylindrical outer surface that extends over at least 70% of the whole length, the collapse resistant body providing an effective rigidity in a cylindrical region of the collapse resistant body where the outer surface is substantially cylindrical providing an effective hardness of the collapse resistant body in the cylindrical region of at least 50 on the Rockwell R scale and the collapse resistant body has a radial compression resistance at least able to withstand a radial clamping force sufficient for a resulting friction force on a test piece to resist a tension force of 70 kN (kilo newtons) applied along a longitudinal axis of the test piece.
Apparatus for supporting a segment of an RTP, comprising:
- a segment of RTP body comprising an internal bore, an inner layer, a reinforcement layer and an outer layer;
- a clamp locatable around the outer layer;
- and
- a collapse resistant body comprising a first end and a further end disposed in a spaced apart relationship with the first end with a whole length of the collapse resistant body being at least 15 cm and a substantially cylindrical outer surface that extends over at least 70% of the whole length, the collapse resistant body providing an effective rigidity in a cylindrical region of the collapse resistant body where the outer surface is substantially cylindrical providing an effective hardness of the collapse resistant body in the cylindrical region of at least 50 on the Rockwell R scale and the collapse resistant body has a radial compression resistance at least able to withstand a radial clamping force sufficient for a resulting friction force on a test piece to resist a tension force of 70 kN (kilo newtons) applied along a longitudinal axis of the test piece, wherein
- the collapse resistant body is for opposing radially inward collapse via resisting radially inwards motion of at least an inner surface of the inner layer of the RTP body via abutment of said inner surface against an outer surface region of the collapse resistant body and optionally
- said radial clamping force is provided by a clamp at a covered portion of an outer surface of the test piece and a bore of the test piece is supported by the collapse resistant body located in the bore at the covered portion and optionally
- the resulting friction force is provided by the radial clamping force exerted by the clamp on the outer surface of the test piece and the clamp is provided at a predetermined relative position to a loading framework as defined in ISO 3501 and optionally the clamp is provided at the predetermined relative position via abutment or mounting to the loading framework.
Dependencies are inferred from the claim text.