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High pressure compact spiral hydraulic hose

  • US 10,458,573 B2
  • Filed: 04/10/2017
  • Issued: 10/29/2019
  • Est. Priority Date: 04/10/2017
  • Status: Active Grant
First Claim
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1. A hose comprising:

  • an inner tube of a single layer construction and defining a central longitudinal axis there through, and comprising a vulcanized rubber and a plurality of rod shaped particles orientated substantially parallel with the central longitudinal axis, wherein the inner tube has a tube wall thickness (t) of between about 0.5 mm to about 1.5 mm, wherein the plurality of rod shaped particles are carbon or graphite particles having carbon atoms which are bonded together in crystals aligned parallel to the long axis of each of the plurality of rod shaped particles, and wherein the plurality of rod shaped particles is incorporated in an amount of 5% or less by weight, based upon total weight of the inner tube;

    a tie layer directly surrounding the inner tube;

    a first reinforcement layer surrounding the tie layer;

    at least a second reinforcement layer surrounding the first reinforcement layer;

    an interlayer interposed between the first and the second reinforcement layer, the interlayer bonding the first reinforcement layer to the second reinforcement layer; and

    ,a cover surrounding the second reinforcement layer.

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