Push-to-connect fitting with release assistance assembly and device

  • US 10,180,202 B2
  • Filed: 09/19/2017
  • Issued: 01/15/2019
  • Est. Priority Date: 03/20/2015
  • Status: Active Grant
First Claim
Patent Images

1. A fitting, comprising:

  • a main body component comprising an interior wall and an exterior wall, wherein the interior wall defines a cavity extending axially through the main body component, wherein the main body component further comprises a first segment having an axially inner portion, an axially intermediate portion and an axially outer portion, with the axially inner portion, axially intermediate portion and axially outer portion being integrally formed and each having a respective interior wall, exterior wall and an interior radius, wherein the interior radius of the axially inner portion is smaller than the interior radius of the axially intermediate portion, and wherein the interior radius of the axially intermediate portion is smaller than the interior radius of the axially outer portion, wherein the axially intermediate portion comprises a radial step extending radially inwardly such that the axially intermediate portion comprises a first interior wall portion and a second interior wall portion separated by the radial step, wherein the first interior wall portion and the second interior wall portion have a respective interior radius, and wherein the second interior wall portion radius is larger than the first interior wall portion radius;

    at least one sealing ring maintained within the first interior wall portion of the axially intermediate portion of the main body component;

    a tube support member maintained within the interior wall of the axially outer portion of the main body component and the second interior wall portion of the axially intermediate portion of the main body component, wherein the tube support member has an interior surface;

    a fastening ring maintained within the second interior wall portion of the axially intermediate portion of the main body component; and

    a sealing ring support member maintained against the second interior wall portion and between the at least one sealing ring and the fastening ring.

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