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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0401708 (1999-09-23) |
발명자 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 5 인용 특허 : 6 |
A light-weight vacuum pump has a multi-wiper member circular wiper member support and impeller which is eccentrically mounted within a pump housing. The multi wiper member circular support carries from about five to nine wiper members each mounted within a slot extending substantially the length of
[ What is claimed:] [1.]1. A vacuum pump comprising:a pump housing having a generally annularly cylindrical shaped rear pump housing portion having a front opening and a rear wall, and having a smooth inner cylindrically shaped surface having a concentric center, a first flow opening and a second fl
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