发明名称 Bernoulli type, non-contact air-activated lifting and tamping device
摘要 A non-contact, air-activated lifting and tamping device which incorporates a means of producing a Bernouilli airflow at the device nozzle, creating an adjacent low air pressure region for inducing lift; and which includes provision for high velocity air jets for tamping operation. The device is compact, never clogs or ices and is easily adjustable for a wide range of applications.
申请公布号 US7398735(B1) 申请公布日期 2008.07.15
申请号 US20050303384 申请日期 2005.12.16
申请人 SUNDERLAND HOWARD F 发明人 SUNDERLAND HOWARD F.
分类号 E01B27/00 主分类号 E01B27/00
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