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Quick connect/disconnect fluid coupling

  • US 5,005,877 A
  • Filed: 12/06/1989
  • Issued: 04/09/1991
  • Est. Priority Date: 12/16/1988
  • Status: Expired due to Fees
First Claim
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1. A quick connect/disconnect coupling having two engageable and disengageable haves, said halves being locked together when in engaged relation, comprising:

  • a male coupling half having a first fluid bore therethrough, said male coupling half having a generally cylindrical outside surface and including a first locking surface extending outward relative to a centerline of the coupling, said first locking surface extending circumferentially about said male coupling half;

    a female coupling half having an opening and a second generally cylindrical fluid bore therethrough for accepting said male coupling half, said outside surface of said male coupling half extending into said opening when said halves are in engaged relation, said female coupling half including a body portion having a second locking surface extending circumferentially in said second fluid bore, said second locking surface extending inward and at an acute angle relative to the centerline of the coupling and a plane of said opening, said first and second bores in fluid communication when said coupling halves are in engagement, said body portion further including a cylindrical outer surface extending parallel of the centerline of the coupling;

    a plurality of cocking bodies mounted for movement outward from the centerline of the coupling on one of said coupling halves, each of said locking bodies comprising an arcuate segment of a ring, and in the engaged position of said coupling halves each of said locking bodies engaging said first and second locking surfaces and both adjacent locking bodies in said ring; and

    biasing means for biasing said ring segments toward said centerline of said coupling; and

    movement means for moving said locking bodies to disengage at least one of said locking surfaces, whereby said coupling halves are enabled to be disconnected; and

    wherein said movement means includesa sleeve member mounted for movement parallel of the centerline of the coupling on said female coupling half, said sleeve member including a cylindrical portion having an inner face, said inner face of said cylindrical portion overlying and contacting said outer surface of said body portion of said female coupling half and extending circumferentially about said outer surface;

    said sleeve member further including a turned-in continuous leg portion, said cylindrical portion and said leg portion of unitary, one piece construction, said leg portion extending from said cylindrical portion of said sleeve member to adjacent said outside surface of said male coupling half.

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