F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
285/14, 285/41
F16L 39/00 (2006.01) F16L 39/04 (2006.01) F16L 41/00 (2006.01)
Patent
CA 1061827
ABSTRACT The specification describes a rotatable multiple pipe coupling structure employing a labyrinth seal bet- ween each stationary pipe and its respective rotatable pipe. Because of no protruding parts from inner pipes into the channels, there will be minimized turbulence in the fluids to be transferred through the rotatable mul- tiple pipe coupling structure. There is also described a rotatable pipe coupling structure having a stationary pipe and a corresponding rotatable pipe. The pipes are rotatably sealed with a labyrinth seal. The coupling structures according to this invention may be further provided with a driving shaft longitudinally and central- ly extending therethrough. The coupling structures of this invention are applicable for a revolving floor such as tower restaurants, for changing the surface area of vehicle tires while in motion, for moving cranes, for remote handling of materials such as radio-active materials, for gun turrets, helicopters, heavy mining machinery, and whereever there is required to transfer at least one fluid from a stationary element to a rotat- able element.
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