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    • 5. 外观设计
    • Crane tie-arm
    • USD874082S1
    • 2020-01-28
    • US29576211
    • 2016-09-01
    • John Rene Spronken
    • John Rene Spronken
    • FIG. 1 is a perspective view of a first variant of the design;
      FIG. 2 is an end view thereof;
      FIG. 3 is the other end view thereof;
      FIG. 4 is one side view thereof;
      FIG. 5 is the other side view thereof;
      FIG. 6 is a top plan view thereof;
      FIG. 7 is a bottom plan view thereof;
      FIG. 8 is an exploded perspective view of the first variant of the design;
      FIG. 9 is an end view thereof;
      FIG. 10 is the other end view thereof;
      FIG. 11 is one side view thereof;
      FIG. 12 is the other side view thereof;
      FIG. 13 is a top plan view thereof;
      FIG. 14 is a bottom plan view thereof;
      FIG. 15 is a perspective view of a second variant of the design;
      FIG. 16 is an end view thereof;
      FIG. 17 is the other end view thereof;
      FIG. 18 is one side view thereof;
      FIG. 19 is the other side view thereof;
      FIG. 20 is a top plan view thereof;
      FIG. 21 is a bottom plan view thereof;
      FIG. 22 is an exploded perspective view of the second variant of the design;
      FIG. 23 is an end view thereof;
      FIG. 24 is the other end view thereof;
      FIG. 25 is one side view thereof;
      FIG. 26 is the other side view thereof;
      FIG. 27 is a top plan view thereof; and,
      FIG. 28 is a bottom plan view thereof.
      The broken lines shown in the figures are included for the purpose of illustrating portions of the crane tie arm and form no part of the claimed design.
    • 10. 发明授权
    • Crane tie arm adjustment
    • US09851049B1
    • 2017-12-26
    • US15254010
    • 2016-09-01
    • John Rene Spronken
    • John Rene Spronken
    • F16M13/02
    • F16M13/022B66C23/28B66C23/62
    • Provided herein is a crane tie arm assembly for connecting a crane to a structure. The assembly comprises: (i) a first arm comprising a cylindrical female end portion having a plurality of internal, elongate protuberances parallel to one another and arranged in axially extending columns; and (ii) a second arm comprising a cylindrical male end portion having a plurality of spaced external, elongate protuberances, which protuberances are arranged in axially extending columns on the external surface thereof for mating engagement with channels formed between protuberances of the female end portion. The assembly can be coupled and locked in place by sliding the male end portion axially into the female end portion and then rotating either end portion circumferentially to sufficiently to engage surfaces of the protuberances with the channels. A stop element is disposed on the female end portion or the male end portion for preventing over-elongation of the assembly.