초록 ▼

A flexible conduit construction having an inner flexible tubular member and having an outer flexible tubular member telescoped about the inner tubular member with the internal peripheral surface of the outer tubular member being in spaced relation from the other peripheral surface of the inner tubul

A flexible conduit construction having an inner flexible tubular member and having an outer flexible tubular member telescoped about the inner tubular member with the internal peripheral surface of the outer tubular member being in spaced relation from the other peripheral surface of the inner tubular member throughout the length of the inner tubular member to protect the same, a coiled compression spring being disposed about the inner tubular member in spaced relation therewith and radially engaging the internal peripheral surface of the outer tubular member to hold the internal peripheral surface of the outer tubular member in spaced relation relative to the outer peripheral surface of the inner tubular member even though the tubular members are disposed in various arcuately flexed conditions thereof. The outer tubular member is under axial tension between its opposed ends so as to radially contract and thereby be disposed in radial compression against the coiled compression spring.

대표청구항 ▼

In a flexible conduit construction having an inner flexible tubular member and having an outer flexible tubular member telescoped about said inner tubular member with the internal peripheral surface of said outer tubular member in spaced relation from the outer peripheral surface of said inner tubul

In a flexible conduit construction having an inner flexible tubular member and having an outer flexible tubular member telescoped about said inner tubular member with the internal peripheral surface of said outer tubular member in spaced relation from the outer peripheral surface of said inner tubular member throughout the length of said inner tubular member to protect the same, said outer tubular member having opposed ends and being formed of a material that radially expands when said opposed ends are placed under axial compression and that radially contracts when said opposed ends are placed under axial tension, said construction having end members respectively secured to said opposed ends of said outer tubular member, the improvement comprising resilient means disposed about said inner tubular member in spaced relation therewith and engaging said internal peripheral surface of said outer tubular member to hold said internal peripheral surface in spaced relation relative to said outer peripheral surface of said inner tubular member even when said tubular members are in an arcuately flexed condition, said resilient means comprising a coiled compression spring having opposed ends respectively secured to said end members, said outer tubular member being under axial tension between said end members and thereby having said internal peripheral surface thereof disposed in radial compression against said coiled compression spring.