Patent ID: 8820794
Filing Date: 2014-09-02
Classification: F16L

Abstract:
1. A hose-in-hose system comprising: a first inner coupler defined on one end by a male tapered mating surface; said first inner coupler having a first shoulder spaced away from said male tapered mating surface; said first shoulder oriented substantially perpendicular relative a central axis through said first inner coupler; a first recess extending from said first shoulder away from said male tapered mating surface; a second inner coupler defined on one end by a female tapered mating surface; said female tapered mating surface shaped to mate with said male tapered mating surface; said second inner coupler having a second shoulder oriented substantially perpendicular relative a central axis of said second inner coupler; a second recess extending from said second shoulder away from said female tapered mating surface; a first outer coupler having a first outer flange extending perpendicularly relative to a central axis of said first outer coupler, said first outer flange defined on one side by a first mating surface, said first outer coupler having a first bore extending from said first mating surface and defining a portion of an interior of said first outer coupler, said first bore terminating in a first shoulder extending toward said central axis of said first outer coupler and spaced away from said first mating surface, said first mating surface annularly extending outwardly of said first bore; said first shoulder of said first outer hose coupler oriented substantially perpendicular relative to said central axis of said first outer coupler; a second outer coupler having a second outer flange extending perpendicularly relative to a central axis of said second outer coupler, said second outer flange defined on one side by a second mating surface, said second mating surface adapted to mate with said first mating surface said second outer coupler having a second bore extending from said second mating surface defining a portion of an interior of said second outer coupler, said second bore terminating in a second shoulder extending toward said central axis of said second outer coupler and spaced away from said second mating surface, said second mating surface annularly extending outwardly of said second bore; said second shoulder of said second outer coupler oriented substantially perpendicular relative to said central axis of said second outer coupler; a first containment area defined by the space between said first inner hose coupler and said first outer hose coupler; a second containment area defined by the space between said second inner hose coupler and said second outer hose coupler; a first spacer member is ring-shaped having a first face and a second face separated by an outer rim and an inner rim; said first spacer member nested in said first containment area between said first inner coupler and said first outer coupler; said first face of said first spacer member contacting said first shoulder of said first inner coupler, said second face of said first spacer member contacting said first shoulder of said first outer coupler, said first spacer locating said first shoulder of said first inner coupler nearer said first mating surface of said first outer coupler than said shoulder of said first shoulder of said first outer coupler, said outer rim contacting said first bore of said first outer hose coupler, said inner rim contacting said first recess of said first inner coupler; a second spacer member is ring-shaped having a first face and a second face separated by an outer rim and an inner rim; said second spacer nested in said second containment area between said second inner coupler and said second outer coupler; said first face of said second spacer member contacting said second shoulder of said second inner coupler, said second face of said second spacer member contacting said second shoulder of said second outer coupler, said second spacer locating said second shoulder of said second inner coupler nearer said second mating surface of said second outer coupler than said second shoulder of said second outer coupler, said outer rim contacting said second bore of said second outer hose coupler, said inner rim contacting said second recess of said second inner coupler; said male tapered mating surface held in sealed contact with said female tapered mating surface when said first and second outer mating surfaces are held in contact.