Patent ID: 7677847

Claim:
A spindle apparatus, comprising: a housing containing oil, a spindle rotatably supported in the housing and lubricated by oil within the housing, a brush seal sealing the spindle to prevent oil from escaping and to prevent ingress of liquid fluid from outside into the housing, and an apparatus for transfer of a medium, with the apparatus including a rotatable shaft for transport of oil, a transfer compartment provided at an end surface of the shaft and communicating with an internal bore of the shaft, a feed device for supply of oil into the transfer compartment for introduction into the internal bore of the shaft, and a sealing assembly, disposed between the shaft and the feed device, for preventing a leak during transfer of oil from the transfer compartment into the internal bore of the shaft, said sealing assembly including a brush seal and a labyrinth seal positioned adjacent to the brush seal for sealing the spindle.