Patent ID: 8769893

Claim:
A twist lock portable building footing comprising: a block anchor device includes a threaded tube, a plurality of rebar projections, said plurality of rebar projections extend from a perimeter of said threaded tube; a threaded adjustment shaft having a first end and a second end, an inner diameter of said threaded tube is sized to threadably receive said first end of said threaded adjustment shaft; a pocket projection device includes a support base, a spherical bearing and a twist lock projection, said support base includes a base threaded tube and an attachment plate, said base threaded tube extends downward from said attachment plate, one end of said spherical bearing is attached to said attachment plate; said spherical bearing includes a mounted spherical roller bearing and an upper attachment plate, said mounted spherical roller bearing includes a spherical bearing tube, said attachment plate is attached to an end of said spherical bearing tube, said twist lock projection is attached to the other end of said spherical bearing, an inner diameter of said base threaded tube is sized to threadably receive said second end of said threaded adjustment shaft; and a cast concrete block includes said block anchor device formed therein.