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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0669263 (1991-03-14) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 9 인용 특허 : 0 |
An air pressure powered vacuum has a housing with a continuous channel through it. Positive pressure air is introduced into and accelerates in an annular shaped plenum in the housing. The high velocity air is diffused from the plenum into the channel towards a debris collection bag. The diffuser is
A mini-vacuum comprising a monolithic housing; a cylindrical channel in said housing, said channel having an inlet at one end through which a vacuum is drawn and an outlet at the other end through which waste is carried on a positive pressure flow stream and which channel has a substantially smooth
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