Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 23, 2017
Patent Application Number
14923296
Date Filed
October 26, 2015
Patent Citations Received
...
Patent Primary Examiner
Patent abstract
Disclosed are degassers, couplings, impeller shafts and impellers for use in molten metal. One such coupling transfers gas into an impeller shaft, the coupling having a smooth, tapered internal surface to align with a corresponding surface on the impeller shaft and help prevent gas leakage and to assist in preventing damage to the impeller shaft. Improved impellers for shearing and mixing gas are also disclosed, as is a degasser including one or more of these components.
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