Abstract: An expandable and collapsible support device for multiple use enables attaining an expanded open state for use or return to a compact closed state in mere seconds. The device includes an accordion-style frame that expands laterally from a compact closed state to an expanded open state for use, and a material support cover forming the top of the device and attachable to the frame to provide a support surface above ground level for the device.

Abstract: An expandable and collapsible support device for multiple use enables attaining an expanded open state for use or return to a compact closed state in mere seconds. The device includes an accordion-style frame that expands laterally from a compact closed state to an expanded open state for use, and a material support cover forming the top of the device and attachable to the frame to provide a support surface above ground level for the device.

Abstract: An expandable and collapsible support device for multiple use enables attaining an expanded open state for use or return to a compact closed state in mere seconds. The device includes an accordion-style frame that expands laterally from a compact closed state to an expanded open state for use, and a material support cover forming the top of the device and attachable to the frame to provide a support surface above ground level for the device.

Abstract: An expandable and collapsible support device for multiple use enables attaining an expanded open state for use or return to a compact closed state in mere seconds. The device includes an accordion-style frame that expands laterally from a compact closed state to an expanded open state for use, and a material support cover forming the top of the device and attachable to the frame to provide a support surface above ground level for the device.

Abstract: An exercise device for performing a variety of exercises in both doorway-mounted and floor-mounted configurations is described. The device includes a horizontal bar configured for engagement with a doorframe, a pair of support arms, each having one end attached to the horizontal bar and the other end extending through a doorway, and a pivot bar connected between the support arms. The device further includes a pair of pivot arms configured to be rotated about the pivot bar at their first ends so as to be oriented and secured in a plurality of different angular positions relative to the support arms, and a pull-up bar including at least one grip handle configured to be rotated about the pivot arms at their second ends so as to be oriented and secured in a plurality of different angular positions relative to the pivot arms.