Invention Grant
US5722591A Apparatus for spreading bulk materials 失效
用于散布散装材料的装置

Apparatus for spreading bulk materials
Abstract:
A spreading apparatus for hitching to a helicopter includes a hopper suspended from a ring, three tubular legs with upper ends releasably attached to the ring, and a strut between each pair of legs. A plurality of tension cables are provided, each cable having a top end joined to the ring at a leg attachment point and a bottom end joined to a rubber roller inserted between adjacent struts where they attach to a leg with a coupling.
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