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    • 4. 发明授权
    • Hand operated crab leg opener with multiangled blade
    • 手动螃蟹开启器与多刃刀片
    • US5586931A
    • 1996-12-24
    • US519660
    • 1995-08-25
    • Richard M. Williams, Jr.
    • Richard M. Williams, Jr.
    • A22C29/02
    • A22C29/024
    • A hand held utensil adapted to open elongate sections of crab leg shells and similar objects comprising a manually engagable handle, a planar blade secured to the handle and extending outwardly to a tip, with the forward portion of the blade adjacent the tip being substantially straight. A blade-protecting member is secured in a spaced relationship adjacent the substantially straight forward portion of the blade, with the blade-protecting member extending from the handle for a distance exceeding the length of the blade. An open-ended slot is defined between the substantially straight forward blade portion and the blade-protecting member, with such slot being adapted to receive the shell of a crustacean, such that the blade can cut through the shell as a user grasping the handle moves the blade longitudinally along the shell. In the preferred embodiment, the blade is multiangled, with a rear portion of the blade extending upwardly from the substantially straight forward blade portion in the direction of the adjacent undersurface of the blade-protecting member. The undersurface of latter member has a recess therein into part of which the upwardly extending rear blade portion extends, thus to provide assured shell-cutting capability when the blade and recess are brought into contact with a crustacean shell. The rear portion of the multiangled blade may extend up smoothly from the substantially straight, forwardmost portion of the blade, or it may form an obtuse angle with the substantially straight forwardmost portion of the blade.
    • 一种手持式餐具,其适于打开螃蟹腿壳的细长部分和类似物体,包括手动可接合的手柄,固定到手柄并向外延伸到尖端的平面叶片,其中刀片的前部与尖端相邻,基本上是直的。 叶片保护构件以与刀片的基本上直的前部相邻的间隔的关系固定,刀片保护构件从手柄延伸超过刀片长度的距离。 在基本上直的前刀片部分和刀片保护构件之间限定开口狭槽,其中这种狭槽适于容纳甲壳类动物的壳体,使得当用户抓住手柄移动时,刀片可以切穿壳体 刀片纵向沿着外壳。 在优选实施例中,叶片是多重的,叶片的后部从叶片保护构件的相邻下表面的方向从基本上直的前叶片部分向上延伸。 后部构件的下表面具有凹部,其中一部分向上延伸的后叶片部分延伸,从而当叶片和凹部与甲壳类动物壳体接触时提供有保证的切割切割能力。 多刃叶片的后部可以从叶片的基本上直的最前部分平滑地延伸,或者其可以与叶片的基本上直的最前部分形成钝角。