发明名称 Concrete vibrator
摘要 Immersion vibrator of the type employed for consolidating poured concrete and employing an unbalanced rotor, characterized by a gerotor type motor, operated by hydraulic pressure, for rotating the rotor. It is of particular utility as an accessory to certain paving machines having an engine driven hydraulic circulating pump.
申请公布号 US4057222(A) 申请公布日期 1977.11.08
申请号 US19760658594 申请日期 1976.02.17
申请人 KOEHRING COMPANY 发明人 LYLE, JOHN S.
分类号 E04G21/08;F03C2/08;(IPC1-7):B01F1/00;F01C1/10;F03C3/00;F04C1/06 主分类号 E04G21/08
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