Dowell & Dowell
Swivel hose coupling
 A swivel coupling for terminating the end of a hose made of resilient material, the coupling having a tubular nipple with a barbed end entering the hose and a cylindrical end extending from the hose and having an O-ring seal extending therearound, and the coupling including a screw threaded fitting surrounding the cylindrical end of the nipple and sealed thereto by the O-ring and having an annular abutment adjacent to the hose, and the coupling further including an annular collar, separable into sectors in the form of shell portions which surround the hose and squeeze it against the barbed nipple, the collar having a grooved structure overlying the annular abutment of the screw fitting and retaining the fitting close to the hose while permitting it to swivel with respect to its axis. 
F F B
F16L F16L B60T
inventional inventional inventional
Sergio
Campanini