Patent ID: 8905054

Claim:
An apparatus configured to provide a retractable protrusive structure, the apparatus comprising: a base comprising a first surface; a plurality of guides disposed on the first surface, the plurality of guides radially spaced about an axis of rotation, the axis of rotation being substantially perpendicular to the first surface, the plurality of guides including a first guide and a second guide, a first end of the first guide and a first end of the second guide being positioned closer to the axis of rotation relative to a second end of the first guide and a second end of the second guide; a plurality of members including a first member and a second member, individual ones of the plurality of members corresponding to individual ones of the plurality of guides, an outward end of the first member being configured to translate via the first guide from the first end of the first guide to the second end of the first guide, and an inward end of the first member being configured to couple with an inward end of the second member; wherein: a protruded configuration is effectuated from a retracted configuration by translating the outward end of the first member from the second end of the first guide to the first end of the first guide, and translating an outward end of the second member from the second end of the second guide to the first end of the second guide, causing the apparatus to protrude from the retracted configuration to the protruded configuration; and the retracted configuration comprises the first member and the second member lying flat against the first surface.