Patent ID: 6913291
Filing Date: 2005-07-05
Classification: F16L

Abstract:
1. A hose-in-hose comprising a longitudinally extended inner hose assembly including a first hose casing, a second hose casing, and a releasable inner coupler for connecting said first and second hose casings; a longitudinally extended outer hose assembly enclosing said inner hose assembly, said outer hose assembly including a third hose casing, a fourth hose casing, and a releasable outer coupler for connecting said third and fourth hose casings; said outer coupler including opposing longitudinally shiftable sleeves associated with each said third and fourth hose casings, each of said sleeves threadedly shiftable relative to its respective associated hose casing between an extended position and a retracted position; said sleeves being connectable in their said extended positions; said sleeves being separated in their said retracted positions to expose said inner coupler.