Patent ID: 8308200
Filing Date: 2012-11-13
Classification: F16L

Abstract:
1. A hose-in-hose comprising: a first hose assembly including a first inner hose casing, a first outer hose casing enclosing said first inner hose casing, said first outer hose casing having a first outer, coupler part joined thereto, said first outer coupler including a first flange extending outwardly from said first outer coupler, said first flange including a first sealing surface, said first inner hose casing including a first inner coupler part joined thereto, said first inner coupler having an outer diameter and a first single-piece bodily separate annular spacer approximate said first flange extending annularly between said first outer and said first inner coupler parts to fix said first inner coupler from lateral movement with respect to said first outer coupler, said first annular spacer maintaining a substantially coaxial relationship between said first outer coupler and said first inner coupler; a second hose assembly including second inner hose casing, a second outer hose casing enclosing said second inner hose casing, said second outer hose casing having a second outer coupler part joined thereto, said second outer coupler including a second flange extending outwardly from said second outer coupler, said second flange including a second sealing surface adapted for sealingly mating with said first sealing surface, said second inner casing including a second inner coupler part joined thereto, said second inner coupler having an inner diameter adapted for telescopingly receiving said outer diameter of said first inner coupler to form a sealed connection and a second single-piece bodily separate annular spacer approximate said second flange extending annularly between said second outer and said second inner coupler parts to fix said second inner coupler from lateral movement with respect to said second outer coupler, said second annular spacer maintaining a substantially coaxial relationship between said second outer coupler and said second inner coupler, said first and second outer flanges adapted for receiving a fastener for urging said first and second sealing surfaces on said first and second outer flanges together.