发明授权
- 专利标题: Hydraulically operated concrete transfer chute
- 专利标题(中): 液压操作混凝土输送滑槽
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申请号: US48740申请日: 1998-03-26
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公开(公告)号: US6041907A公开(公告)日: 2000-03-28
- 发明人: Robin E. Bonnette
- 申请人: Robin E. Bonnette
- 专利权人: Bonnette; Robin E.
- 当前专利权人: Bonnette; Robin E.
- 主分类号: B28C5/42
- IPC分类号: B28C5/42 ; B65G11/14
摘要:
A hydraulically operated concrete transfer chute having a plurality of telescoping generally U-shaped chute sections which are arranged to telescope together onto a first chute section pivotally connected to a concrete truck, the inner end of the first chute being aligned to receive the concrete discharged from the concrete truck, the first chute section having a planar bearing surface on each of the top sides and inside of the first chute, each of the two parallel planar bearing surfaces extending from the outer end of the first chute at least to the point at which concrete enters the first chute section, and each of the plurality of telescoping chute sections having a plurality of roller bearings aligned in a row along the inside of each of the top sides of each of the telescoping chute sections, each of the rows of roller bearings being covered on their top side by a planar bearing surface.
公开/授权文献
- US5401120A Pumpable mine seal 公开/授权日:1995-03-28
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