Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
March 24, 2009
Patent Application Number
11041388
Date Filed
January 24, 2005
Patent Citations Received
Patent Primary Examiner
Patent abstract
An automatic washing machine comprises a wash tub and a wash plate movably mounted within the wash tub for imparting mechanical energy to articles of fabric in the wash tub. The wash plate comprises a base and a blade that extends from the base and terminates in a tip. According to the invention, at least the tip of the blade is formed by an insert. The insert is made from a relatively hard and wear resistant material that is different than the material of the impeller body. As a result, the wear resistance and performance of the impeller is improved without significantly increasing the overall cost of the impeller.
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