Patent ID: 8353988

Claim:
A rotating pressure distributor for a carousel-type machine for treating hollow bodies comprising a plurality of identical treatment stations each intended for treating at least one hollow body, said rotating distributor comprising two coaxial rings, one fixed and the other rotating, which are sealingly in contact against one another by means of respective opposing contact faces, defining a joint plane, the rotating ring comprising communication orifices, each adapted for being connected to at least one treatment station and opening onto the contact face of said rotating ring, the fixed ring comprising at least one aperture adapted for being connected to a pressure source of the machine and opening onto the contact face of said fixed ring so as to be located on the trajectory of the orifices of the rotating ring such that at least one treatment station is connected to the pressure source when the corresponding orifice is coincident with the aperture, grease being spread between the respective contact faces of the two rings to provide the seal relative to the pressure, wherein at least one annular channel is provided which covers an annular opening of the joint plane and which is connected to the atmosphere by a separate annular opening defined by a fixed element and a rotating element, wherein inside this channel respective mutually interlaced flanges are provided without contact with one another, forming chicanes, and wherein the channel is filled with grease.