Patent ID: 7494158
Filing Date: 2009-02-24
Classification: F16L,F17C,Y10T

Abstract:
1. A connection coupling for transferring fluids, the coupling having an inlet end, an outlet end, and a lumen therebetween, the coupling comprising: collet chucks, each collet chuck having an outer end; a sliding sleeve for locking the collet chucks onto a connection nipple, the sliding sleeve at least partially surrounding the collet chucks; a guide sleeve with longitudinal grooves in which the collet chucks are guided; a spacer sleeve at least partially surrounding the collet chucks and the guide sleeve, at least a portion of the spacer sleeve being disposed between the sliding sleeve and the collet chucks such that the collet chucks do not directly contact the sliding sleeve; a sealing piston disposed relative to the collet chucks so as to receive at least a portion of the connection nipple between the sealing piston and the collet chucks, the sealing piston forming at least a portion of the connection coupling lumen; and an annular groove formed between a shoulder of the sliding sleeve and the spacer sleeve and arranged radially outside of the guide sleeve, the groove receiving at least portion of the outer ends of the collet chucks at least when the collet chucks are in an uncoupled position.