发明名称 Apparatus for use in sampling aggregate
摘要 A sample collector for aggregate material is provided. The collector includes a support frame having a first end and a second end. A pair of guide plates are attached to the first end of the support frame. These guide plates are spaced apart so as to define a collection space therebetween. At least one of the guide plates is provided with a track that extends generally along the periphery of the collection space. A flexible closing plate is disposed between the guide plates and is adapted for sliding engagement with the track, so that the closing plate may be moved between an open position which exposes the collection space and a closed position which encloses the collection space. A mechanism is also provided for sliding the closing plate between the open position and the closed position.
申请公布号 US6318193(B1) 申请公布日期 2001.11.20
申请号 US20000521030 申请日期 2000.03.07
申请人 PAVEMENT TECHNOLOGY, INC. 发明人 BROCK J. DONALD;COLLINS R. RONALD;BARRETT MICHAEL E.
分类号 G01N1/08;G01N1/10;G01N33/00;(IPC1-7):G01N1/08 主分类号 G01N1/08
代理机构 代理人
主权项
地址