Hybrid hose assembly
AssigneeSwagelok Company
InventorsStephen J. Zaborszki, Corey Pasheilich
Life of this patent
Estimating the term…
Abstract
A hose assembly includes an inner core tube, a connector secured to a distal end of the inner core tube, an outer metal tube substantially coaxial with and surrounding the inner core tube, and a collar substantially coaxial with and surrounding the distal end of the inner core tube. The outer metal tube terminates at a distal end axially inward of the distal end of the inner core tube. The collar includes a first end welded to the distal end of the outer metal tube and a second end welded to the connector.
Claims18
A hose assembly comprising:
- an inner core tube;
- a connector comprising a stem portion inserted into a distal end of the inner core tube;
- an outer metal tube substantially coaxial with and surrounding the inner core tube, the outer metal tube terminating at a distal end axially inward of the distal end of the inner core tube;
- and
- a collar substantially coaxial with and surrounding the distal end of the inner core tube, the collar including a flared first end welded to the distal end of the outer metal tube a second end welded to the connector, and an intermediate portion between the first end and the second end, wherein the intermediate portion is in radial compression against the distal end of the inner core tube to secure the distal end of the inner core tube to the connector stem portion.
A hose assembly comprising:
- an inner core tube;
- a connector secured to a distal end of the inner core tube;
- an outer metal tube substantially coaxial with and surrounding the inner core tube, the outer metal tube terminating at a distal end axially inward of the distal end of the inner core tube;
- and
- a collar substantially coaxial with and surrounding the distal end of the inner core tube, the collar including a first end welded to the distal end of the outer metal tube and a second end welded to the connector,
- wherein the second end of the collar comprises one or more raised portions on an outer surface of the second end of the collar, the one or more raised portions being radially deformed.
A method of making a hose assembly, the method comprising:
- providing a metal tube having a distal end welded to a flared first end of a collar;
- providing a core tube having a distal end receiving a stem portion of a connector;
- inserting the core tube into the metal tube;
- positioning the core tube and the connector such that a second end of the collar aligns with the connector and the distal end of the core tube extends axially outward of the distal end of the metal tube and aligns with an intermediate portion of the collar;
- radially compressing the intermediate portion of the collar against the distal end of the inner core tube to secure the distal end of the inner core tube to the connector stem portion;
- and
- welding the second end of the collar to the connector.
Dependencies are inferred from the claim text.