Patent attributes
In one embodiment, a frame has an expanded configuration and a collapsed configuration. The frame includes a support member that has a first end portion and a second end portion opposite the first end portion. The first end portion of the first elongate member is pivotally coupled to the second end portion of the support member. A second elongate member has a first end portion and a second end portion opposite the first end portion. The first end portion of the second elongate member is pivotally coupled to the support member. A third elongate member has a first end portion and a second end portion. The first end portion of the third elongate member is pivotally coupled to the second end portion of the second elongate member. The third elongate member is pivotally coupled to the second end portion of the first elongate member.