发明名称 DRAIN PUMP HOUSING
摘要 PURPOSE: A drain pump housing and a molding device of the same are provided to make a protrusion even if the thickness of the housing is minimized by pipe-expanding the protrusion. CONSTITUTION: A drain pump housing comprises a housing main body(12). The housing main body has a cylindrical space part(14). The both ends of the housing main body are opened. A protrusion is integrally mounted on the both ends of the housing main body. The protrusion is pipe-expanded with a rolling process.
申请公布号 KR20090107598(A) 申请公布日期 2009.10.14
申请号 KR20080032944 申请日期 2008.04.10
申请人 SUNG WON INDUSTRIAL CO., LTD. 发明人 BYUN, GUO SEUK
分类号 B21D41/02;B21D51/18;F04D13/08 主分类号 B21D41/02
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