Patent ID: 8808147

Claim:
A foldable exercise device, capable of being mounted to a door frame, for performing pull-up or chin-up exercises comprising: a first member having a first hinge joint; a second member having a second hinge joint; a third generally L-shaped member being connected to the said first and second members; a fourth generally L-shaped member being connected to said first and second members, and wherein said fourth generally L-shaped member is spaced from said third generally L-shaped member; wherein said first member pivots about said first hinge joint from a folded configuration when compacted to an extended configuration when in use, and wherein said second member pivots about the second hinge joint from a folded configuration when compacted to an extended configuration when in use; wherein said third generally L-shaped member includes a third hinge joint and pivots about said third hinge joint at a midpoint of said third member and extends from a folded configuration when compacted to an extended configuration when in use; wherein said fourth generally L-shaped member includes a fourth hinge joint and extends from a folded configuration when compacted to an extended configuration when in use; wherein said third and fourth generally L-shaped members are capable of repeatedly being moved back and forth from said folded configuration to said extended configuration in a first position and separated in a second position to extend said first and second members from the folded to the extended position; and wherein said first member provides a means for connecting said exercise device to a support surface.