Patent ID: 8602460

Claim:
A connector unit ( 1 ) for connection of a fluid line ( 2 ) to a mattress ( 3 ) of a waterbed, which mattress rests in a safety tub, which unit comprises a first connecting piece ( 5 ) assigned to said waterbed mattress ( 3 ) and including a connecting end for forming said connection, a second connecting piece ( 6 ) assigned to the fluid line ( 2 ) and including a connecting end for forming said connection, and a connecting sleeve ( 7 ) which while in mounted position encompasses said first connecting piece ( 5 ) and said second connecting piece ( 6 ) in part at least, wherein one of the connecting pieces ( 5 , 6 ) has a male thread ( 12 ) at the connecting end and is provided as a screw-in connector, wherein the connecting sleeve ( 7 ) is provided with a female thread ( 25 ) for threaded engagement with the connecting end of said male threaded screw-in connector ( 5 ), wherein just one connecting piece ( 5 ) is threaded at the connecting end and the other connecting piece ( 6 ) is without thread at the connecting end, wherein the connecting piece without thread ( 6 ) is of flange type and provided with a flange ( 19 ) which protrudes radially outward, wherein the connecting sleeve ( 7 ) has a radially inwardly protruding annular web ( 26 ) to engage behind said flange ( 19 ) of the flange type socket ( 6 ) and is shaped such that with the connecting sleeve ( 7 ) in mounted position the flange ( 19 ) gets at least axially clamped against the threaded connecting piece ( 5 ), and further comprising sealing means in the form of at least one connecting lip ( 15 , 22 ) that protrudes radially outward from the connecting piece ( 5 , 6 ), wherein said connecting lip ( 15 , 22 ) is placed between the first connecting piece ( 5 ) and a sheath ( 10 ) of a waterbed mattress ( 3 ) or between the second connecting piece ( 6 ) and a safety tub ( 24 ) of the waterbead that surrounds said sheath ( 10 ) in some areas at least to create a watertight connection between the first connecting sleeve ( 5 ) and the sheath ( 10 ) of the waterbed mattress ( 3 ) or between the second connecting piece ( 6 ) and the safety tub ( 24 ).