초록 ▼

A coupling for connecting hoses to a medium under pressure includes a female part having a nipple release mechanism and at least one ball-type nipple locking member for initially locking a nipple in place within the female part, an axially displaceable valve member centrally located and movable in t

A coupling for connecting hoses to a medium under pressure includes a female part having a nipple release mechanism and at least one ball-type nipple locking member for initially locking a nipple in place within the female part, an axially displaceable valve member centrally located and movable in the female part from a closed position in contact with an annular valve seat and an open position away from the valve seat, a nipple insertable in the female part and having a groove in an outer surface region thereof adapted to initially engage the ball-type nipple locking member for locking the nipple in place in the female part upon insertion. The female part additionally includes an elongated rotatable arm having a rounded distal end for contacting the groove in the nipple for holding the nipple in place at an intermediate position consisting of a partial removal of the nipple from the female part upon subsequent activation of the nipple release mechanism until pressure inside the nipple drops below a predetermined pressure level.

대표청구항 ▼

[ What is claimed is:] [1.]1. A coupling for connecting hoses or the like to a medium under pressure, comprising:a female part including a nipple release mechanism and at least one ball-type nipple locking member for initially locking a nipple in place within the female part;an axially displaceable

[ What is claimed is:] [1.]1. A coupling for connecting hoses or the like to a medium under pressure, comprising:a female part including a nipple release mechanism and at least one ball-type nipple locking member for initially locking a nipple in place within the female part;an axially displaceable valve member centrally located and movable in the female part from a closed position in contact with an annular valve seat and an open position away from the valve seat; and,a nipple insertable in the female part and including an outer surface region adapted to initially engage the ball-type nipple locking member for locking the nipple in place in the female part upon insertion;said female part additionally including a restraining member for holding the nipple in place at an intermediate position consisting of a partial removal of the nipple from the female part upon subsequent activation of the nipple release mechanism together with movement of the valve member to the closed position against the valve seat and thereafter releasing the nipple for complete removal from the female part in response to pressure inside the nipple dropping below a predetermined pressure level.