Patent ID: 9283673
Filing Date: 2016-03-15
CPC Classification: A63H,B25J,Y10T

Claim Text:
1. A robotic limb structure, comprising: a. a chassis; b. a first link, having a first end and a second end, rotatably connected to said chassis by a Joint c. a second link, having a first end and a second end, rotatably connected to said first link by a Joint d. a third link, having a first end and a second end, rotatably connected to said second link by a Joint e. a fourth link, rotatably connected to said third link by a Joint f. said Joint g. said Joint h. said first link having an upper Achilles joint lying between said Joint i. said third link having a lower Achilles joint lying proximate said first end of said third link, whereby said Joint j. an Achilles linkage rotatably connected to said upper Achilles joint and rotatably connected to said lower Achilles joint; k. a knee suspension mechanism providing rotational resistance between said first link and said second link about said Joint l. said knee suspension mechanism being configured to change to said high level of rotational resistance when said Joint m. wherein a rotation of said first link about said Joint n. wherein said second link is configured to rotate about said Joint