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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0915081 (1986-10-03) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 12 인용 특허 : 13 |
Method and apparatus for changing oil in an internal combustion engine pierces an outer wall of an old oil filter containing old motor oil to form an opening in a lower portion of the filter wall. Old motor oil is drawn from the pierced oil filter into a container by suction through the filter wall
An oil change device for changing motor oil in an internal combustion engine having an oil drain plug in an engine crankcase and a replaceable oil filter, the device comprising: means for removing oil from the oil filter including a suction conduit having a mouth and an exit passageway, and means fo
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