Quick connector with positive lock indication

Patent metadata

Field	Value
Publication number	US-11480277-B2
Application number	US-201716465338-A
Country	US
Kind code	B2
Filing date	Nov 22, 2017
Priority date	Dec 1, 2016
Publication date	Oct 25, 2022
Grant date	Oct 25, 2022

Abstract

A quick connector assembly includes a male adapter portion ( 24 ) having an end and a groove ( 62 ) formed therein spaced from the end. The male adapter portion has a through bore. A female housing portion ( 22 ) has a body having a through bore generally concentrically aligned with the male adapter portion through bore. A ring ( 26 ) cooperates with the female housing portion and the male adapter portion. The ring is in a first position when the male adapter is engaged with the female housing and a second position, different from the first position, when the male adapter is other than engaged with the female housing. The first and second positions can be visually different from one another.

First claim

We claim:

1. A quick connector assembly comprising:
a male adapter portion having an end and a groove formed therein spaced from the end, the male adapter portion having a first through bore;
a female housing portion having a body, the body having a second through bore generally concentrically aligned with the first through bore, the second through bore having an interior surface;
a twist ring having a series of internal pockets, the twist ring configured to cooperate with the female housing and the male adapter:
a spring clip; and
a sliding ring that is configured to slide adjacent to the internal surface,
wherein the twist ring is in a first position when the male adapter is engaged with the female housing by the spring clip, and
wherein the twist ring is in a second position, different from the first position, when the male adapter is other than engaged with the female housing, and the sliding ring contacts the spring clip.

2. The connector assembly of claim 1 wherein the first and second positions are visually different from one another.

3. The connector assembly of claim 1 including tactile indication that the male adapter is engaged with the female housing and that the male adapter is not engaged with the female housing.

4. The connector assembly of claim 1 , wherein the female housing includes a pair of opposing elongated circumferential openings, and wherein the spring clip has one of a pair of legs disposed in each of the pair of opposing elongated circumferential openings, the pair of legs of the spring clip are configured to cooperate with and engage the groove of the male adapter to secure the male adapter in the female housing.

5. The connector assembly of claim 4 , wherein the sliding ring includes an edge to interfere with rotating the twist ring when the male adapter is disengaged from the female housing and wherein when the male adapter is engaged with the female housing the sliding ring is urged inwardly of the female housing moving the edge out of interference with movement of the twist ring.

6. The connector assembly of claim 5 , wherein the pair of legs of the spring clip are biased inwardly to engage the groove in the male adapter to secure the male adapter to the female housing.

7. The connector assembly of claim 4 , wherein the groove of the male adaptor and each of the pair of opposing elongated circumferential openings intersect a common plane when the male adaptor and the female housing are engaged.

8. The connector assembly of claim 1 , wherein the twist ring is capable of moving from the second position to the first position by inserting the male adaptor into the second through bore to move the sliding ring until the sliding ring can no longer contact the spring clip, and rotate the twist ring so that the spring clip is unseated from the plurality of pockets.

9. The connector assembly of claim 1 , wherein the sliding ring includes a front edge configured to engage a front surface of the male adaptor, and a tab that extends from the sliding ring beyond the front edge.

Assignees

• Illinois Tool Works

Inventors

• Trotter Jason
• Vrtagic Nedim
• Kuhn Joseph C

Classifications

• F16L37/0885 Primary

  with access to the split elastic ring from a radial or tangential opening in the coupling · CPC title

• F16L37/144

  the securing element being U-shaped · CPC title

• F16L2201/10

  Indicators for correct coupling · CPC title

• F16L37/101

  in which the coupling is coaxial with the pipe · CPC title

• F16L37/0985

  the flexible hook extending radially inwardly from an outer part and engaging a bead, recess or the like on an inner part (F16L37/0982 takes precedence) · CPC title