Quick disconnect coupling
First Claim
1. A quick disconnect coupling for an access valve, comprising:
- a housing, having a first end, a second end, a central passage having a axis running from said first end of said housing to said second end of said housing, a conduit opening communicating with said central passage, an inlet located in said second end of said housing, and ball bearing cavities spaced about a circumference of said inlet;
a depressor, having a first end and a second end, being mounted for longitudinal movement in said central passage of said housing so that said first end and said second end of said depressor are respectively in coaxial juxtaposition to said first end and said second end of said housing, said depressor being movable between an open position permitting communication through said central passage and a closed position where communication through said central passage is blocked;
a conduit for supplying a fluid in communication with said central passage of said housing; and
quick disconnect means for coupling and uncoupling the quick disconnect coupling to the access valve; and
means for moving said depressor between said open and said closed position, independent of said quick disconnect means.
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Accused Products
Abstract
A quick disconnect coupling for an access valve is disclosed which includes a housing having an independently displaced depressor mounted within the housing, a sliding sleeve mounted on one end of the housing, ball bearings retained in the housing between ball bearing cavities and the sliding sleeve, and locking means preventing the removal of the quick disconnect coupling from the access valve unless the depressor is withdrawn to seal off flow from both the valve and the quick disconnect coupling. The quick disconnect coupling can thus be attached to a valve without establishing communication therethrough or through the quick disconnect coupling until the depressor mounted within the housing is independently moved into contact with the core of the access valve.
41 Citations
9 Claims
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1. A quick disconnect coupling for an access valve, comprising:
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a housing, having a first end, a second end, a central passage having a axis running from said first end of said housing to said second end of said housing, a conduit opening communicating with said central passage, an inlet located in said second end of said housing, and ball bearing cavities spaced about a circumference of said inlet; a depressor, having a first end and a second end, being mounted for longitudinal movement in said central passage of said housing so that said first end and said second end of said depressor are respectively in coaxial juxtaposition to said first end and said second end of said housing, said depressor being movable between an open position permitting communication through said central passage and a closed position where communication through said central passage is blocked; a conduit for supplying a fluid in communication with said central passage of said housing; and quick disconnect means for coupling and uncoupling the quick disconnect coupling to the access valve; and means for moving said depressor between said open and said closed position, independent of said quick disconnect means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification