发明名称 |
Multi-purpose vacuum unit |
摘要 |
A suction apparatus for retrieving liquids such as aircraft deicing fluid from a paved surface. The apparatus may have a squeegee structure with multiple inlets for fluid, and a fluid flow structure which can selectively connect only certain inlets to a suction tank. A large inlet can be used in deep fluids, whereas multiple smaller inlets can be used to retrieve a shallow layer of liquid. The inlets may be adjustable relative to the squeegee structure. The apparatus may be mounted on a trailer, and the trailer may be equipped with a hitch that can maintain the trailer in a predetermined level attitude regardless of the height of the hitch on the towing vehicle.
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申请公布号 |
US8365346(B2) |
申请公布日期 |
2013.02.05 |
申请号 |
US20080316662 |
申请日期 |
2008.12.15 |
申请人 |
ECOTECH SERVICE CO., LLC;COPPOLA JOHN R.;COPPOLA FRANK G. |
发明人 |
COPPOLA JOHN R.;COPPOLA FRANK G. |
分类号 |
A47L7/00 |
主分类号 |
A47L7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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