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公开(公告)号:US06332474B1
公开(公告)日:2001-12-25
申请号:US09614869
申请日:2000-07-12
申请人: Karl T. Haugen , Gert Lövgren
发明人: Karl T. Haugen , Gert Lövgren
IPC分类号: F04F300
CPC分类号: B08B9/0933 , B63B57/02 , Y10T137/0391
摘要: When collecting a crude oil material or a similar highly viscous and sticky material, a lubricating fluid is supplied and vacuum is applied.
摘要翻译: 当收集原油材料或类似的高粘度和粘稠的材料时,供应润滑流体并施加真空。