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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0528718 (1990-05-24) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 3 인용 특허 : 0 |
An air-floated apparatus, such as a lawn mower or vacuum cleaner, is comprised of an endless housing having a bottom opening defined by a relatively flat plate member projecting inwardly from a bottom part of the housing. At least one air impeller is provided for pressurizing air within the housing
An apparatus, comprising, in combination: a substantially endless housing having an open bottom and an air intake opening, said housing being adapted to cooperate with a support surface beneath said housing to define a substantially enclosed chamber; means for pressurizing air in said chamber suffic
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