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    • 53. 发明授权
    • Aquatic vegetation harvester
    • 水生植被收割机
    • US4885902A
    • 1989-12-12
    • US181323
    • 1988-04-13
    • Michael Schmidt
    • Michael Schmidt
    • A01D44/00
    • A01D44/00
    • A submarine vegetation cutter is disclosed, driven by a direct current electrical motor adapted to drive two reciprocating type cutting blade assemblies which are disposed in a substantially opposed relationship relative to each other, and means for transmitting the driving force of the motor to the blade assemblies, and means for reversing the polarity of the direct current to the motor. There is also included a level switch for preventing electrical power from being conducted to the motor when the vegetation cutter is held at a more than predetermined angle from the vertical.
    • 公开了一种潜艇植被切割机,其由直流电动机驱动,该直流电动机适于驱动相对于彼此大致相对的关系设置的两个往复式切割刀片组件,以及用于将马达的驱动力传递到叶片组件的装置 以及用于反转直流电动机的极性的装置。 还包括一个液位开关,用于当植被切割器从垂直方向保持在超过预定角度时防止电力传导到马达。