Patent ID: 8430366

Claim:
A clamping structure for attachment to a beam having an approximately square or rectangular cross section with a top, bottom, front and back, the clamping structure comprising a single elongated rod having a series of bends, the rod comprising: first and second back portions for placement adjacent to the back of the beam, each having a top end and a bottom end and sized to extend from the top to the bottom of the beam; first and second outer lower portions for placement adjacent to the bottom of the beam, each having a front end and a back end and sized to extend from the back to the front of the beam, the back end of the first outer lower portion adjoined to the bottom end of the first back portion and the back end of the second outer lower portion adjoined to the bottom end of the second back portion; first and second inner lower portions, located between the outer lower portions for placement adjacent to the bottom of the beam, each having a front end and a back end and sized to extend to the front of the beam; a lower connecting portion connecting the back ends of the first and second inner lower portions; first and second front portions, the first front portion connecting the front ends of the first inner and outer lower portions to each other, and the second front portion connecting the front ends of the second inner and outer lower portions to each other, wherein the front portions are angled upward between approximately 3 and 85 degrees relative to the inner and outer lower portions; and a first top portion for placement adjacent to the top of the beam and having a back end adjoined to the top end of the first back portion and a front end which is adjoined to or forms a first holding structure.