# US 8,769,893 B1 · Twist lock portable building footing

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- Number: US 8,769,893 B1
- Document ID: US8769893B1
- Status: Granted
- Kind: B1
- Application number: 13/861,751
- Filed: 2013-04-12
- Granted: 2014-07-08
- Earliest claimed: 2013-04-12
- Assignees: Kwikspace Guam
- Applicants: Peter E. Gill; Peter E. Gill, III
- Inventors: Peter E. Gill; Peter E. Gill, III
- Web page: https://patentgrep.com/patent/US8769893B1

## CPC

- E02D 27/50: Anchored foundations
- E02D: FOUNDATIONS; EXCAVATIONS; EMBANKMENTS (specially adapted for hydraulic engineering E02B); UNDERGROUND OR UNDERWATER STRUCTURES {(tunnels, tunnelling, mining E21)}

## Abstract

A twist lock portable building footing preferably includes a block anchor device, a threaded adjustment shaft, a pocket projection device and a cast concrete block. The block anchor device preferably includes a threaded tube, a plurality of rebar projections. The pocket projection device preferably includes a support base, an H-shaped spherical roller bearing and a twist lock projection. The support base includes a base threaded tube. The block anchor device is cast in the cast concrete block. One end of the threaded adjustment shaft is threaded into the threaded tube and the other end is threaded into the base threaded tube. The block anchor device is cast in the cast concrete block. The twist lock portable building footings are positioned, such that projection members of the twist locks may be inserted into grappler pockets of a cargo container.

## Claims

### Claim 1

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.

### Claim 2 (depends on 1)

The twist lock portable building footing of claim 1 wherein:
said plurality of rebar projections include a plurality of lower rebar projections extending from near a bottom of said threaded base; and
a plurality of upper rebar projections include a plurality of upper rebar projections extending from near a top of said threaded base.

### Claim 3 (depends on 1)

The twist lock portable building footing of claim 1, further comprising:
a rebar cage is formed in said cast concrete block.

### Claim 4

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 includes a twist lock and a twist lock mounting plate, said twist lock mounting plate is attached to a bottom of said twist lock, said twist lock mounting plate is attached to said attachment plate, said twist lock mounting plate 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.

### Claim 5 (depends on 4)

The twist lock portable building footing of claim 4 wherein:
said plurality of rebar projections include a plurality of lower rebar projections extending from near a bottom of said threaded base; and
a plurality of upper rebar projections include a plurality of upper rebar projections extending from near a top of said threaded base.

### Claim 6 (depends on 4)

The twist lock portable building footing of claim 4, further comprising:
a rebar cage is formed in said cast concrete block.