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US 12,372,181 B2Granted
High tolerance quick connect coupling
AssigneeHutchinson Fluid Management Systems, Inc.
InventorsChethan Kumar Hanumanthappa Tembad, Aaron Ritzrow, Steve Todt, Luc Milanini
Life of this patent
Estimating the term…
Abstract
A fitting for use in a manifold or other tubular assembly includes a core and at least one tubular coupling sleeve slidably and sealingly fitted over a distal end of the core to accommodate predetermined tolerances in the relative positions of fluid ports connected with the tubular assembly. Features are provided to limit the range of motion to the predetermined tolerances and to prevent disassembly of the coupling sleeve from the core of the fitting.
Claims14
A tube fitting comprising:
- a core defining a tubular conduit for conveying fluid from a tube connectable to the fitting and having at least one tubular end section, the tubular end section having a surface at an outer diameter, and a protuberance extending away from an outer surface of the end section;
- at least one tubular coupling sleeve having a distal end, the distal end of the tubular coupling sleeve having a first inner diameter that is equal to or larger than the outer diameter of the end section of the core, the coupling sleeve slidably fitted over the end section of the core, a surface at an inner diameter of the coupling sleeve having a recess spaced from the distal end of the coupling sleeve, the protuberance located in the recess to limit sliding movement of the coupling sleeve relative to the core;
- at least one o-ring seal radially disposed between the surface at the outer diameter of the end section of the core and the surface at the inner diameter of the tubular coupling sleeve;
- and
- wherein the protuberance has a ramped and radially outwardly facing surface engaging a complementary ramped surface on a barb at an inner wall of the coupling sleeve, and wherein the protuberance and the recess are sized and provided with stop surfaces that allow a predetermined range of motion of the tubular coupling sleeve relative to the core while the o-ring seal prevents fluid leaks between the tubular conduit defined by the core and the respective tubular coupling sleeve, wherein the core defines two opposite tubular end sections, and wherein a tubular coupling sleeve of the at least one tubular coupling sleeve is disposed over each of the opposite tubular end sections.
2 more elements
A tube fitting comprising:
- a core having two opposite tubular end sections, the tubular end sections each having a surface at an outer diameter, and a protuberance extending away from an outer surface of the respective end section;
- a tubular coupling sleeve disposed over each of the tubular end sections, each tubular coupling sleeve having a distal end, the distal end of each tubular coupling sleeve having a first inner diameter that is equal to or larger than the outer diameter of the respective end section of the core, each coupling sleeve slidably fitted over the respective end section of the core, a surface at an inner diameter of each coupling sleeve having a recess spaced from the distal end of the respective coupling sleeve, the protuberance located in the recess to limit sliding movement of the respective coupling sleeve relative to the core;
- at least one o-ring seal radially disposed between the surface at the outer diameter of the end section of the core and the surface at the inner diameter of the tubular coupling sleeve, and
- wherein the protuberance has a ramped and radially outwardly facing surface engaging a complementary ramped surface on a barb at an inner wall of the respective coupling sleeve, and wherein the protuberance and the recess are sized and provided with stop surfaces that allow a predetermined range of motion of the tubular coupling sleeve relative to the core while the o-ring seal prevents leaks between a tubular conduit defined by the core and the respective tubular coupling sleeve.
1 more element
Dependencies are inferred from the claim text.