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专利名称：TAPERED BEARING ASSEMBLY COVER PLATE AND WELL DRILLING EQUIPMENT
COMPRISING SAME康的词语>梦见头发长长了
发明人：WILLIAMS, John, R.
申请号：US2008008378
申请日：20080708
公开号：WO09/029150P1
维果茨基
公开日：
20090305
专利内容由知识产权出版社提供
摘要：A bearing asmbly for a well drilling head has an outer barrel, an inner barrel, bearing units and a cover plate. The outer barrel has an upper end portion, a lower end portion and a central bore extending therebetween. The inner barrel is at least partially dispod within the central bore of the outer barrel. The bearing units are coupled between the barrels for providing concentric alignment of the barrels and allowing rotation therebetween. The cover plate is non-rotatably attached to the upper end portion of the outer barrel. An upper end portion of the inner barrel is expod within a central opening of the cover plate. An outside edge portion of an upper surface of the cover plate encompassing the central opening is downwardly angled with respect to a central axis of the cover plate.
申请人：WILLIAMS, John, R.
地址：4500 Williams Drive, # 212-404 Georgetown, TX 78628 US
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国籍：US
孜然鸡块
代理机构：SIMMONS, David, O.天蝎座的克星
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