Patent ID: 7004509

Claim:
A rotary joint for connecting a conduit system to the end of a hollow journal of a tubular roll rotating about an axis of rotation comprising a tubular nipple mountable to a roll journal in substantially coaxial relationship thereto, the nipple having an outer end and a cylindrical outer surface, an annular body having a central bore slightly greater than the diameter of said nipple for receiving said nipple, a radial flange defined on said body having parallel axially spaced inner and outer radial surfaces defined thereon, a first resilient seal interposed between said nipple outer surface and said body central bore, a fixed bearing cover rigidly mountable adjacent the end of the roll journal, a chamber defined in said bearing cover having spaced first and second walls radially disposed with respect to the journal axis of rotation, said radial body flange being located between said chamber walls and having axial dimension slightly less than the axial spacing between said chamber walls, second and third resilient seals interposed between said body flange surfaces and said chamber walls, said second resilient seal interposed between said chamber second wall and said body outer surface and said third resilient seal interposed between said chamber first wall and said body inner surface, and a passage within said bearing cover in communication with said nipple outer end.