发明名称 Hydrovac with Blower in Tank
摘要 An improved hydro-vac excavation apparatus is presented with the blower located on a recessed portion of the mud tank, saving space and eliminating piping. The blower and silencers are oriented so that airflow through the blower and out through the silencers is in a downward direction, eliminating low spots that could trap liquid.
申请公布号 US2011036635(A1) 申请公布日期 2011.02.17
申请号 US20100750525 申请日期 2010.03.30
申请人 RAJEWSKI ROBERT C 发明人 RAJEWSKI ROBERT C.
分类号 E21B21/01 主分类号 E21B21/01
代理机构 代理人
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