A solid plug for insertion in the quick disconnect fitting of a hose mobile unit (a hose coiled on a hose reel) which will prevent unwanted drainage while the unit is in storage. The plug is cylindrical with a plurality of spaced annular projections designed to mate with internal surfaces within the...http://www.google.fr/patents/US5469890?utm_source=gb-gplus-shareBrevet US5469890 - Hose mobile plug
