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US 6,186,559 B1Granted
Tube coupling assembly
AssigneeVisteon Global Technologies, Inc.
InventorsJohn Harry Fisher, Kevin Michael Ahaus, David Alan Campbell, Henry A. Beckwith, Luis Sergio Munoz
Life of this patent
Estimating the term…
Abstract
A tube coupling assembly includes a tube having an end form for attachment to a hose with a notch extending radially inwardly into the end form. The tube coupling assembly also includes a ferrule disposed about the end form and having an end snap-locked into the notch. The ferrule is adapted to be crimped to secure the hose to the tube between the ferrule and the end form.
Claims8
A tube coupling assembly comprising:
- a tube having an end form for attachment to a hose with a notch rolled therein and extending radially inwardly into said end form, said end form having a tapered portion extending axially and radially from said notch and a plurality of barbs extending axially from said tapered portion and rolled onto said end form and gradually increasing a diameter of said end form by a predetermined amount from said tapered portion to a free end thereof, said barbs being annular and spaced axially;
- and
- a ferrule disposed about said end form and having an end having a plurality of tabs spaced circumferentially and extending radially inwardly and disposed in and snap-locked into said notch, said tabs having an end at an angle of either less than or equal to thirty degrees from a longitudinal axis of said ferrule, said ferrule being adapted to be crimped to secure the hose to the tube between said ferrule and said end form.
A tube coupling assembly comprising:
- a tube having an end form for attachment to a hose with an annular notch extending radially inwardly into and rolled in said end form, said end form having a tapered portion extending axially and radially from said notch and a plurality of barbs extending axially from said tapered portion and rolled onto said end form and gradually increasing a diameter of said end form by a predetermined amount from said tapered portion to a free end thereof, said barbs being annular and spaced axially;
- and
- a ferrule having an end portion extending radially inwardly and a body portion extending axially from said end portion and disposed about said end form, said end portion having a plurality of tabs spaced circumferentially and extending radially inwardly and disposed in and snap-locked into said notch, said tabs having an end at an angle of either less than or equal to thirty degrees from a longitudinal axis of said ferrule, said ferrule being adapted to be crimped to secure the hose to the tube between said ferrule and said end form.
A method of making a tube coupling assembly, said method comprising the steps of:
- providing a tube;
- forming an end form on an end of the tube for attachment to a hose by reducing a diameter of the tube to form a tapered portion extending axially and radially;
- forming a notch by rolling into the tube and rolling onto the end form a plurality of barbs extending axially from the tapered portion and gradually increasing a diameter of the end form by a predetermined amount from the tapered portion to a free end thereof;
- providing a ferrule having a body portion extending axially and an end portion extending radially at one end with a plurality of tabs spaced circumferentially and extending radially inwardly and disposing the ferrule over the end form and placing an end of the ferrule into the notch by snap-locking the tabs into the notch;
- providing a hose and placing the hose over the barbs of the end form;
- and
- crimping the ferrule to secure the ferrule, hose and tube together.
4 more elements
Dependencies are inferred from the claim text.