发明名称 Device for opening and closing the discharge door of a bulk seed box
摘要 A device is described for opening and closing the discharge door of a bulk seed box. The device comprises a portable lightweight structure which is attached to the box and which uses an electrically operated screw actuator to move the discharge door of the box from its closed position to its open position and vice versa. The device also includes a spreader mechanism which relieves the stress or tension on the supporting slide or track for the discharge door so that the discharge door may be more easily opened and closed.
申请公布号 US8137043(B2) 申请公布日期 2012.03.20
申请号 US20080231735 申请日期 2008.09.05
申请人 BECK TOM J. 发明人 BECK TOM J.
分类号 B65G65/04;B65G65/34;E05F1/00;E05F3/00;E05F11/00 主分类号 B65G65/04
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