초록 ▼

A dry disconnect coupling is provided for connecting one fluid conduit to another to form a continuous, essentially fluid-tight path. The coupling includes an adapter and a coupler which, when coupled together, define a flow passageway therethrough. The adapter includes a hollow, generally cylindric

A dry disconnect coupling is provided for connecting one fluid conduit to another to form a continuous, essentially fluid-tight path. The coupling includes an adapter and a coupler which, when coupled together, define a flow passageway therethrough. The adapter includes a hollow, generally cylindrical adapter body, adapter valve means and improved means for releasing the adapter from the coupler. The coupler includes a hollow, generally cylindrical coupler body, coupler valve means, improved connecting means for providing a rigid, fluid-tight connection between the adapter and the coupler, an annular connecting sleeve, sleeve override means, an annular nosepiece, nosepiece override means, improved sealing means for sealing the coupling and a cam assembly for cooperating with the sleeve override means, the nosepiece override means and the coupler valve means. The connecting means prevents fluid in the flow path from leaking during a fluid transfer operation even if a side load is applied to the coupling or if the mechanical components of the coupling are worn. The sealing means prevents fluid residue from accumulating on the periphery and the faces of the poppet valves of the adapter and the coupler as the flow path is established so that the loss at disconnect is minimized. The releasing means permits the adapter and the coupler to be easily and readily disconnected after a fluid transfer operation.

대표청구항 ▼

[ What is claimed is:] [1.] A coupling for connecting a first fluid conduit to a second fluid conduit to form a continuous, fluid-tight flow path, said coupling comprising:an adapter comprisinga hollow, generally cylindrical adapter body defining a longitudinal axis and having opposed ends, one of s

[ What is claimed is:] [1.] A coupling for connecting a first fluid conduit to a second fluid conduit to form a continuous, fluid-tight flow path, said coupling comprising:an adapter comprisinga hollow, generally cylindrical adapter body defining a longitudinal axis and having opposed ends, one of said opposed ends of said adapter body attached to the first fluid conduit, said adapter body comprising a flange adjacent the other of said opposed ends of said adapter body; andadapter valve means centrally disposed within said adapter body for controlling the flow of fluid through said adapter body, said adapter valve means comprising a face adjacent said flange of said adapter body, said face of said adapter valve means generally perpendicular to the longitudinal axis defined by said adapter body; anda coupler comprisinga hollow, generally cylindrical coupler body defining a longitudinal axis and having opposed ends, one of the opposed ends of said coupler body attached to the second fluid conduit;coupler valve means centrally disposed within said coupler body for controlling the flow of fluid through said coupler body, said coupler valve means comprising a face adjacent the other opposed end of said coupler body, said face of said coupler valve means generally perpendicular to the longitudinal axis defined by said coupler body; andconnecting means for providing a rigid, fluid-tight connection between said adapter and said coupler, said connecting means comprisinga generally cylindrical connecting sleeve disposed radially outwardly of said coupler body and concentrically about the longitudinal axis defined by said coupler body;a plurality of latching lugs circumferentially spaced on said coupler body for engaging said flange of said adapter body;sleeve biasing means for biasing said connecting sleeve in the direction of said adapter; andsleeve override means for further biasing said connecting sleeve in the direction of said adapter, said sleeve override means comprisingan annular sleeve override plate disposed radially outwardly of said coupler body and radially inwardly of said connecting sleeve; andan annular sleeve wave spring positioned longitudinally between said sleeve override plate and said connecting sleeve.