Filler-siphon assembly for a water bed

Claim 1

In combination with a hollw, plastic water bed mattress, an adapter body having a cylindrical, internally threaded nipple receiving portion extending through an opening in said mattress, said threaded body portion having at one end a radially outwardly extending flange bonded to the region of said mattress surrounding said opening, said threaded body portion having at the other end a radially inwardly extending shoulder surrounding an orifice for filling and emptying said mattress, a threaded, cylindrical plug adapted for insertion into and removal from said receiving portion, the length of said plug being less than the length of said threaded body portion, so that when inserted the plug will be recessed below the level of said radially outwardly extending flange, a hose connecting nipple threaded at one end, said one end being adapted for threaded insertion into the receiving portion of said plug, the other end of said nipple having a radially outwardly extending flange, a cylindrical, internally threaded clamp nut for connecting said nipple to a water supply hose, said clamp nut having a radially inwardly extending fastening flange at one end, said clamp nut being slidable over said nipple so that the fastening flange clamps the flange of said nipple against the end of said hose when the clamp nut is threaded to said hose, and a cylindrical dip tube having an outer diameter slightly less than the diameter of said adapter body orifice, and having at one end a radially outwardly extending flange the outer diameter of which is slightly less than the inner diameter of the threaded body portion of said adapter, said dip tube being adapted to be inserted through said orifice into the mattress interior, said dip tube being secured in place by subsequent threaded insertion of said nipple into said receiving portion so as to clamp the radially outwardly extending flange of said dip tube between the end of said nipple and the radially inwardly extending shoulder of said adapter body, the end of said dip tube being shorter than the filled interior thickness of said mattress.