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Quick disconnect coupling with selective mating capability

  • US 10,253,911 B1
  • Filed: 09/29/2017
  • Issued: 04/09/2019
  • Est. Priority Date: 09/29/2017
  • Status: Active Grant
First Claim
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1. A quick disconnect coupling comprising:

  • a socket comprising;

    a tubular member rigidly mounted against a base, the tubular member including a fluid pathway;

    a first sleeve having a first outer radius along a first portion of its length and a second outer radius along a second portion of its length, the first outer radius having a greater value than the second outer radius, and the first sleeve biased by a first spring to block the fluid pathway;

    a second sleeve at a first radial position biased by a second spring in a flush position, the second sleeve including an interfering element with the first sleeve for axially displacing the first sleeve when the second sleeve is displaced axially where the second sleeve is radially seated against the first sleeve along both the first outer radius and second outer radius of the first sleeve;

    a third sleeve at a second radial position biased by a third spring in a flush position, the third spring disposed between the second sleeve and a cylindrical housing in the flush position, the third sleeve including an interfering element with the second sleeve for axially displacing the second sleeve when the third sleeve is displaced axially and the third sleeve further comprising a stop that bears against the base when the third sleeve is maximally displaced from the flush position;

    anda nipple comprising;

    a valve biased by a spring in a closed position;

    a cylindrical housing having an annular proximal end with a shoulder spaced therefrom, the annular proximal end disposed at the first radial position and the shoulder disposed at the second radial position;

    whereby engagement of the nipple with the socket displaces the second sleeve of the socket by the proximal end of the nipple to move the first sleeve from the fluid pathway; and

    whereby the shoulder of the nipple displaces the third sleeve of the socket to allow the tubular member to overcome the bias of the spring and open the valve.

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