Gas expelling equipment for use in a viscous-material...

Details Gas expelling equipment for use in a viscous-material... Gas expelling equipment for use in a viscous-material...

B - Operations, Transporting

29

B

18/729

B29B 7/84 (2006.01)

Patent

CA 1314674

ABSTRACT OF THE DISCLOSURE A device for expelling the gas liberated within a viscous-material treating apparatus such as a kneader, an extruder or the like. The device basically consists of a cone- shaped rotor and a cone-shaped cover member covering the rotor. The cone-shaped rotor is provided with volute protrusions on its coned surface, while the cone-shaped cover member is provided with a gas exhaust orifice to which a vacuum system is to be connected. With the cone-shaped rotor kept rotating, the volute protrusions act so as to prevent the viscous material from being swallowed up together with the liberated gas to be pumped out.

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