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31 条记录 (耗时 0.008 秒)

    APPARATUS AND METHOD FOR REMOVING AQUATIC VEGETATION
    1.
    发明申请
    APPARATUS AND METHOD FOR REMOVING AQUATIC VEGETATION 审中-公开

    公开(公告)号：US20200375109A1

    公开(公告)日：2020-12-03

    申请号：US16373924

    申请日：2019-04-03

    申请人： SCOTT LANDGRAF

    发明人： SCOTT LANDGRAF

    IPC分类号： A01D44/00 ,  A01D1/14 ,  A01D1/08

    摘要： This invention relates generally to the removal of aquatic vegetation from bodies of water. More specifically, the invention relates to an apparatus and method for the removal of such vegetation, the apparatus and method facilitating a cutting or uprooting of the vegetation within the water and the optional collection of it there-from.

    Shear with adjustable blade spacing
    9.
    发明授权
    Shear with adjustable blade spacing 失效
    剪切间距可调

    公开(公告)号：US5572857A

    公开(公告)日：1996-11-12

    申请号：US417942

    申请日：1995-04-06

    申请人： Robert D. Barrett

    发明人： Robert D. Barrett

    IPC分类号： A01D34/02 ,  A01D34/08 ,  A01G3/06 ,  A01D1/08

    CPC分类号： A01D34/02 ,  A01D34/08 ,  A01G3/067 ,  A01D2101/00

    摘要： A shear capable of cutting weeds close to the ground, without cutting grass in the presence of the weeds, is described. The shear can be implemented as a battery operated hand held device or as a shear mounted on a lawn mower. The shear operates by maintaining a spacing between the blades such that the flexible grass will only be bent between the blades. Weeds which have a thicker and stiffer shaft than the grass will be cut, thus functioning as a selective mechanical herbicide.

    摘要翻译： 描述了能够在杂草存在的情况下切割接近地面的杂草而不切割草的剪切。 剪切可以实现为电池操作的手持装置或作为安装在割草机上的剪切。 剪切通过保持叶片之间的间隔来操作，使得柔性草仅在叶片之间弯曲。 具有比草重的较硬且较硬的轴的杂草将被切割，因此用作选择性机械除草剂。

    Clamping system for a knife having an angular cross-section
    10.
    发明授权
    Clamping system for a knife having an angular cross-section 失效
    具有角度横截面的刀的夹紧系统

    公开(公告)号：US4338771A

    公开(公告)日：1982-07-13

    申请号：US202959

    申请日：1980-11-03

    申请人： Wolfgang Hummel ,  Gerhard Koch ,  Siegfried Wilhelm ,  Horst Zorn

    发明人： Wolfgang Hummel ,  Gerhard Koch ,  Siegfried Wilhelm ,  Horst Zorn

    IPC分类号： A01F29/09 ,  A01D55/00 ,  A01D1/08

    CPC分类号： A01F29/095

    摘要： The invention is directed to a clamping system for knives with angular cross-sections, especially suited for agricultural cutting operations in which a portion of the length of the sidepiece extending the cutting edge of the knife protrudes over the knife holder when the knife is clamped, with the clamping element engaging the knife in the area of its angular bend. This system allows for a reduction of knife thicknesses while maintaining other desirable characteristics, and provides the knife with greater strength in the area stressed by bending as compared with the unclamped position of the knife.

    摘要翻译： 本发明涉及一种用于具有角度横截面的刀具的夹紧系统，特别适用于农业切割操作，其中当刀被夹紧时，延伸刀的切割边缘的纵梁长度的一部分突出在刀架上， 夹紧元件在其角度弯曲的区域中与刀具接合。 该系统允许在保持其他期望特性的同时减小刀片厚度，并且与刀的未夹紧位置相比，在弯曲应力的区域中提供刀具更大的强度。