Patent ID: 7757704
Filing Date: 2010-07-20
Classification: F16L,Y10T

Abstract:
1. A coupling assembly comprising: a female unit including a connection member which includes a connection end and a barbed tube extending from the connection end, a support frame located in the connection end and a plurality of passages defined around the support frame, the passages communicating with the barbed tube, a sleeve engaged with the connection end and including a through hole and a plurality of paths defined through a lower end of the sleeve; a valve unit including a core and two flexible disks, two grooves defined in an outer peripheries of two ends of the core and the two disks each including an aperture through which one of the two ends of the core extends and an inner periphery of each aperture is engaged with the groove corresponding thereto, a flange extending radially outward from a lower end of the core and rested on the support frame, the core extending through the through hole of the sleeve such that the paths are located between the two disks, a female head securely connected to the sleeve and including an insertion hole with which an operation member is engaged, and a male unit removably inserted through the operation member and connected with the female head.