# US 11,028,576 B1 · Lift and fill concrete raising system

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- Number: US 11,028,576 B1
- Document ID: US11028576B1
- Status: Granted
- Kind: B1
- Application number: 16/208,520
- Filed: 2018-12-03
- Granted: 2021-06-08
- Earliest claimed: 2017-12-03
- Applicants: David W. Stecker, Sr.
- Inventors: David W. Stecker, Sr.
- Web page: https://patentgrep.com/patent/US11028576B1

## CPC

- E01C 23/10: for raising or levelling sunken paving; for filling voids under paving; for introducing material into substructure (consolidating soil in general E02D3/12)
- E04B 1/3511: {Lift-slab; characterised by a purely vertical lifting of floors or roofs or parts thereof}
- B66F 3/08: screw operated (B66F3/44 takes precedence; gearings F16H)
- E04G 21/163: {Jacks specially adapted for working-up building elements (jacks in general B66F3/00)}
- E04G 23/065: {Lifting of buildings (E04G21/163 takes precedence)}
- E01C: CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR (forming roads or like surfaces by compacting or grading snow or ice E01H)
- E04B: GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS (border constructions of opening in walls, floors or ceilings E06B1/00; {electromagnetic shielding H05K9/0001})
- B66F: HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD ({invalid lifting devices A61G7/10; } mounting artificial islands on piles or like supports E02B17/00; scaffolding combined with lifting devices E04G1/22; lifting devices for sliding forms E04G11/24; lifting of buildings E04G23/06; shores or struts E04G25/00; lifts or other hoisting devices on ladders E06C7/12; props for mining E21D15/00)
- E04G: SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS

## Abstract

A system to lift concrete slabs, objects or other rigid materials comprising a sway and lifting bar, lifting jacks on opposing ends of the sway and lifting bar, slip lifting tube brackets on opposing ends of the sway and lifting bar, and a lifting bracket attached to each slip lifting tube bracket by a chain at opposing ends of the sway and lifting bar.

## Claims

### Claim 1

A system for lifting a concrete slab, comprising:
a first lifting jack and a second lifting jack;
a first slip tube secured to a top of the first lifting jack;
a second slip tube secured to a top of the second lifting jack;
a lifting bar having a first end extending through the first slip tube and a second end extending through the second slip tube;
a first lifting tube around the first end of the lifting bar between the first slip tube and the second slip tube;
a second lifting tube around the second end of the lifting bar between the first slip tube and the second slip tube;
a first lifting bracket connected to the first lifting tube;
a second lifting bracket connected to the second lifting tube;
an expandable foam storage source; and
a flexible tube connected to the expandable foam storage source for directing foam below a concrete slab to be lifted by the concrete lifting system.

### Claim 2 (depends on 1)

The lifting system of claim 1, further comprising:
a first chain connecting the first lifting tube to the first lifting bracket; and
a second chain connecting the second lifting tube to the second lifting bracket.

### Claim 3 (depends on 2)

The concrete lifting system of claim 2, wherein the first lifting bracket includes a first platform for supporting a concrete slab, and the second lifting bracket includes a second platform for supporting a concrete slab.

### Claim 4 (depends on 3)

The concrete lifting system of claim 3, further comprising:
a concrete slab supported by the first platform and the second platform.

### Claim 5 (depends on 3)

The concrete lifting system of claim 3, wherein the first chain is connected to the first lifting bracket directly above the first platform, and the second chain is connected to the second lifting bracket directly above the second platform.

### Claim 6 (depends on 2)

The concrete lifting system of claim 2, further comprising:
a first pivoting ring connecting the first lifting tube to the first chain; and
a second pivoting ring connecting the second lifting tube to the second chain.

### Claim 7 (depends on 1)

The concrete lifting system of claim 1, further comprising:
a first metal plate connecting the first slip tube to the first lifting jack; and
a second metal plate connecting the second slip tube to the second lifting jack.

### Claim 8 (depends on 1)

The concrete lifting system of claim 1, wherein the first lifting jack is an air jack, and the second lifting jack is an air jack.

### Claim 9

A system for lifting a concrete slab, comprising:
a first lifting jack and a second lifting jack;
a first U-slot secured to a top of the first lifting jack;
a second U-slot secured to a top of the second lifting jack;
a lifting bar having a first end extending through the first U-slot and a second end extending through the second U-slot;
a first lifting tube around the first end of the lifting bar between the first U-slot and the second U-slot;
a second lifting tube around the second end of the lifting bar between the first U-slot and the second U-slot;
a first lifting bracket connected to the first lifting tube;
a second lifting bracket connected to the second lifting tube;
an expandable foam storage source; and
a flexible tube connected to the expandable foam storage source for directing foam below a concrete slab to be lifted by the concrete lifting system.

### Claim 10 (depends on 9)

The concrete lifting system of claim 9, wherein the first lifting jack is a hydraulic jack, and the second lifting jack is a hydraulic jack.

### Claim 11 (depends on 9)

The concrete lifting system of claim 9, further comprising:
a first chain connecting the first lifting tube to the first lifting bracket; and
a second chain connecting the second lifting tube to the second lifting bracket.

### Claim 12 (depends on 9)

The concrete lifting system of claim 9, further comprising:
a first metal plate connecting the U-slot to the first lifting jack; and
a second metal plate connecting the second U-slot to the second lifting jack.

### Claim 13 (depends on 9)

The concrete lifting system of claim 9, wherein the first lifting bracket includes a first platform for supporting a concrete slab, and the second lifting bracket includes a second platform for supporting a concrete slab.

### Claim 14 (depends on 13)

The concrete lifting system of claim 13, further comprising:
a concrete slab supported by the first platform and the second platform.

### Claim 15

A lifting system, comprising:
a lifting jack;
a slip tube secured to a top of the lifting jack;
a lifting bar having a first end extending through the slip tube and a second end to be placed upon a fixed location;
a lifting tube around the first end of the lifting bar;
a lifting bracket connected to the lifting tube;
an expandable foam storage source; and
a flexible tube connected to the expandable foam storage source for directing foam below a concrete slab to be lifted by the lifting system.

### Claim 16 (depends on 15)

The lifting system of claim 15, further comprising:
a chain connecting the lifting tube to the lifting bracket.

### Claim 17

A system for lifting a concrete slab, comprising:
a first lifting jack and a second lifting jack;
a first slip tube secured to a top of the first lifting jack;
a second slip tube secured to a top of the second lifting jack;
a lifting bar having a first end extending through the first slip tube and a second end extending through the second slip tube;
a first lifting tube around the first end of the lifting bar, wherein the first lifting tube is comprised solely of a unitary tube;
a second lifting tube around the second end of the lifting bar, wherein the second lifting tube is comprised solely of a unitary tube;
a first lifting bracket connected to the first lifting tube; and
a second lifting bracket connected to the second lifting tube.

### Claim 18 (depends on 17)

The concrete lifting system of claim 17, further comprising:
a first chain connecting to the first lifting tube to the first bracket, wherein a first pivoting ring connects the first lifting tube to the first chain; and
a second chain connecting to the second lifting tube to the second bracket, wherein a second pivoting ring connects the second lifting tube to the second chain.

### Claim 19 (depends on 17)

The concrete lifting system of claim 17, further comprising:
an expandable foam storage source; and
a flexible tube connected to the expandable foam storage source for directing foam below a concrete slab to be lifted by the concrete lifting system.