Piggyback holdback clamp

Patent metadata

Field	Value
Publication number	US-9765906-B2
Application number	US-201313924700-A
Country	US
Kind code	B2
Filing date	Jun 24, 2013
Priority date	Aug 30, 2012
Publication date	Sep 19, 2017
Grant date	Sep 19, 2017

Abstract

A clamp is provided for mounting to a cable. The clamp has attachment means for connecting to a pipeline. Further, the clamp has plural clamp segments each with a curved section and tension devices connecting the clamp segments to each other to form a cylindrically shaped attachment area for accommodation of the cable in contact with the curved sections.

First claim

The invention claimed is:

1. A clamp for mounting to a cable to connect the cable with a pipeline, wherein the clamp has an attachment means for connecting the clamp and mounted cable therein to a pipeline, said clamp comprising:
a plurality of clamp segments each constructed having a longitudinal length relative to the longitudinal axis of said cable, and each of said segments with a curved section connected longitudinally to each other by tension devices to form a cylindrically shaped attachment area for accommodation of the cable in contact with the curved sections of said cable, wherein the longitudinal length of the clamp segments, combined with the number of and location of said tension devices along the length of each clamp segment is such that, when the clamp segments are mounted to the cable, they provide a holding force evenly applied to the cable,
wherein at least three clamp segments make up the clamp and the number of tension devices corresponds at least to the number of clamp segments,
wherein each clamp segment has two longitudinal edges arranged in parallel to the longitudinal direction of the cable, when the clamp is mounted to the cable, and that the tension devices are spaced along the longitudinal edges connecting the clamp segments to each other,
wherein each clamp segment has two flanges each extending along each of the longitudinal edges of the clamp segment, and when mounting the clamp to the cable, each flange is arranged adjacent a flange of an adjoining clamp segment, and connected to this adjoining clamp segment by the tension devices, and
wherein each of the tension devices includes a spring like element configured and arranged so as to absorb the possible deviation of the diameter of the cable along its length.

2. A clamp in accordance claim 1 , wherein the clamp has a length arranged in parallel to the longitudinal direction of the cable when the clamp is mounted to the cable, and that plural tension devices are spaced in the length direction of the clamp thereby providing for an even distribution of the clamping force onto the cable.

3. A clamp in accordance with claim 1 , wherein each flange is provided with holes to be aligned with holes in the flange of the adjoining clamp segment, and a locking part of the tension devices is arranged through each pair of the aligned holes and connects the adjoining clamp segments.

4. A clamp in accordance with claim 1 , wherein the cable and the pipeline are included as part of a Direct Electric Heating system and the cable is arranged on the pipeline.

5. A clamp in accordance claim 1 , wherein the pipeline extends from a topside structure to a subsea installation and the cable is attached to the pipeline at two locations, wherein the clamp is adapted for attachment of the cable to the pipeline at a near end location closest to the topside structure.

6. A clamp in accordance with claim 1 , wherein the attachment means is at least one through hole arranged in at least one of the flanges of at least one clamp segments of the clamp for connecting the pipeline and the cable within the clamp by suitable locking means.

Assignees

• Nexans

Inventors

• Skarnes Gunnar
• Badowski Raymond Alexander
• Slora Bjorn Roger

Classifications

• F16L3/1066 Primary

  with three or more members surrounding the pipe · CPC title

• F16L53/37

  the heating current flowing directly through the pipe to be heated · CPC title

• F16L3/237

  for two pipes · CPC title

• B23K37/0535

  Longitudinal pipe seam alignment clamps · CPC title

• H02G3/0412

  Heat or fire protective means (for fire in electric circuits A62C3/16) · CPC title