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1. 发明授权

US4257732A Hay stacker 失效
标题翻译：干草堆垛机
公开(公告)号：US4257732A
公开(公告)日：1981-03-24
申请号：US59150
申请日：1979-07-20
申请人： Leroy Staffanson
发明人： Leroy Staffanson
IPC分类号： A01D87/08 , A01D87/12 , B66F9/00
CPC分类号： A01D87/08
摘要： An agricultural implement, such as a hay rake, may be easily and quickly connected to or disconnected from the tow bar of a tractor. The apparatus features a large main frame assembly which extends over top of the tractor to a ground-engaging position in front of the tractor. The hay basket or other implement is connected to an end of an auxiliary lift frame which is pivotally coupled to the main frame by a hydraulic lift cylinder which permits the implement to be raised from its normal, ground-engaging position to a position far above the top of the tractor for unloading or transport. A second, lift cylinder controls the level of the implement during lifting and transport, while a third hydraulic cylinder serves to operate a push-off mechanism for unloading the hay rake. The apparatus also features a quick-connect-disconnect hitch for coupling to the draw bar of the tractor, and an integrally formed stand for supporting the main frame when uncoupled from the tractor.
摘要翻译：诸如干草耙等农业工具可以容易且快速地连接到拖拉机的拖杆上或与拖拉机的拖杆相连接。该设备具有一个大的主框架组件，其在拖拉机的顶部延伸到牵引车前面的接地位置。干草篮或其他工具连接到辅助提升架的一端，辅助提升架通过液压提升缸枢转地连接到主框架，该液压提升缸允许工具从正常的地面接合位置升高到远远高于拖拉机顶部用于卸载或运输。第二个提升缸在提升和运输期间控制工具的水平，而第三液压缸用于操作用于卸载干草耙的推出机构。该设备还具有用于连接到拖拉机的牵引杆的快速连接断开连接件，以及一体形成的支架，用于当与拖拉机脱离联接时支撑主框架。

2. 发明授权

US5067870A Hay bale unroller 失效
标题翻译：干草捆
公开(公告)号：US5067870A
公开(公告)日：1991-11-26
申请号：US548275
申请日：1990-07-02
申请人： Leroy Staffanson
发明人： Leroy Staffanson
IPC分类号： A01D87/12
CPC分类号： A01D87/127 , A01D2087/128 , Y10S414/124
摘要： A device for lifting, transporting and unwinding spirally wound cylindrical bales of hay utilizes a spear post mounted upon a grapple framework pivotably attached to the bucket of a front-end loader. A drive motor, interactive with the spear post, permits controlled positive unwinding of a bale supported upon the spear post.
摘要翻译：用于提升，运输和展开螺旋缠绕的圆柱形捆的干草的装置利用安装在可枢转地连接到前端装载机的铲斗上的抓斗骨架上的矛杆。与矛头交互的驱动马达允许受控于正确展开支撑在矛杆上的捆包。

3. 发明授权

US4848068A Rotary ditch cleaning device 失效
标题翻译：旋转沟清洗装置
公开(公告)号：US4848068A
公开(公告)日：1989-07-18
申请号：US236859
申请日：1988-08-26
申请人： Leroy Staffanson
发明人： Leroy Staffanson
IPC分类号： A01D34/43 , A01D34/44 , A01D34/86
CPC分类号： A01D34/44 , A01D34/435 , A01D34/86
摘要： An apparatus is provided for removing weed growth from an irrigation ditch of generally V-shaped contour. The apparatus is caused to ride within the ditch while being towed by a vehicle. The apparatus has two motor-driven mowing axles adapted to be adjustably disposed upon the opposite walls of the ditch. Each axle has a multitude of flail-type cutting blades. The axles are preferably rotated in opposite directions. A protective shroud is disposed above each axle.
摘要翻译：提供了一种用于从通常V形轮廓的灌溉沟道除去杂草生长的装置。该装置在被车辆拖曳的同时在沟内骑行。该装置具有两个适于可调节地设置在沟槽的相对壁上的马达驱动的修剪车轴。每个轴都有多个连枷型切割刀片。轴优选地沿相反方向旋转。保护罩设置在每个轴上方。

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