专利名称：BARREL BAR AND BARREL SEGMENT
发明人：WILLIAMS, Robert, J.,WILLIAMS, Maurice, A.申请号：US2006046727
申请日：20061207
公开号：WO08/069797P1
公开日：
20080612
专利内容由知识产权出版社提供
摘要：A barrel bar, for u in a barrel of a screw device having a screw rotatable in the barrel about an axis, has a generally trapezoidal cross-ctional configuration. The barrel bar may have arcuate inner and outer surfaces and a relief along one side surface.
申请人：WILLIAMS, Robert, J.,WILLIAMS, Maurice, A.
地址：6200 Harvard Avenue Cleveland, OH 44105-4896 US,1105 Castleman Court Painesville, OH 44077 US,6378 Smith Road Brook Park, OH 44142 US
国籍：US,US,US
代理机构：SZABO, Paul, E.
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