Patent ID: 6183020
Filing Date: 2001-02-06
Classification: F16L

Abstract:
A coupling device comprising a male coupling element and a female coupling element having an open end sized to receive said male coupling element and an end surface adjacent said open end, an expandable split clip for locking said male coupling element in engagement with said female coupling element and an axially moveable release device which interacts with the split clip to release said male coupling element from said engagement, said release device including an indicator element which indicates a connection between the male and female coupling elements characterized in that said release device comprises an annular sealing element which engages said end surface of the female coupling element when said male and female coupling elements are connected to one another and by the fact that said indicator element includes at least one indicator pin which is held by said release device and axially displacable relative thereto upon connection of said male and female coupling elements, said indicator pin contacting with said end surface of said female coupling element.