System for affixing rebar lattice to receive concrete

• US 6,112,494 A
• Filed: 05/16/1996
• Issued: 09/05/2000
• Est. Priority Date: 05/16/1996
• Status: Expired due to Term

• Current Assignee: Edgeworth Construction Products, LLC
• Original Assignee: Hardy Construction Products, LLC
• Inventors: Hardy, Robert M. Jr., Waters, Louis A. Jr.
• Primary Examiner(s): Safavi, Michael
• Application Number:
  US08/649,051
• Time in Patent Office: 1,573 Days
• Field of Search: 52/677, 52/680, 52/684, 52/685, 52/686, 52/687, 52/688, 52/679, 52/689, 428/200.1, 428/214
• US Class Current: 52/685
• CPC Class Codes: E04C 5/168 Spacers connecting parts for reinforcements and spacing the reinforcements from the form
• CPC Class Codes: E04C 5/20 of material other than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires E04C5/168 takes precedence

Abstract

An apparatus for fixating and elevating an interconnected rebar lattice having individual longitudinal and transverse rebar intersections for use as support for poured concrete in highway and other construction. The apparatus including a holding portion having an open ended recess with two opposing walls being generally U-shaped. The recess has a longitudinal axis and is sized and shaped to receive a longitudinal rod. An arc-shaped portion extends laterally outward from each opposing wall and perpendicular to the longitudinal axis of the recess. The arc-shaped portion has a transverse axis and is sized and shaped to receive a longitudinal rod. the arc-shaped portion includes a recess and opposing walls with one wall including a snap-type lock. A locking member has a generally arc-shaped portion and includes a snap-type lock for attaching to the arc-shaped portions and engaging with the snap-type lock of the arc-shaped portions. A leg portion extends downwardly from the holding portion. The holding member is adapted to secure the individual longitudinal and transverse rebar intersections of the rebar lattice in a locking relationship while the leg portion holds the interconnected rebar lattice in a preselected elevated position.

Claims

1. An apparatus for fixating and elevating an interconnected rebar lattice having individual longitudinal and transverse rebar intersections for use as support for poured concrete in roadway and other slab-type construction, comprising:

a) a holding portion having an open ended recess with two opposing walls being generally U-shaped, the recess having a longitudinal axis and sized and shaped to receive a longitudinal rod;

b) an arc-shaped portion extending laterally outward from each opposing wall and perpendicular to the longitudinal axis of the recess, the arc-shaped portion having a transverse axis and sized and shaped to receive a longitudinal rod;

c) the arc-shaped portions each having a recess and opposing walls with one wall including a locking means;

d) a locking member having a generally arc-shaped portion and a locking means for attaching to the arc-shaped portions and engaging with the locking means of the arc-shaped portions to form a circular opening;

e) a leg portion extending downwardly from the holding portion; and

f) the holding portion adapted to secure the individual longitudinal and transverse rebar intersections of the rebar lattice in a locking relationship while the leg portion holds the interconnected rebar lattice in a preselected elevated position.

2. The apparatus of claim 1, wherein the leg portion is formed of two interconnected leg portions, the two leg portions having a generally X-shaped cross-section.

3. The apparatus of claim 1, wherein the locking member is a one piece member.

4. The apparatus of claim 1, wherein the locking means of the locking member and the arc-shaped portion includes a releasable snap-type lock.

5. The apparatus of claim 1, wherein the locking means of the locking member and the arc-shaped portion includes a non-releasable snap-type lock.

6. The apparatus of claim 1, wherein the holding portion and leg portion are integrally formed of polypropylene.

7. The apparatus of claim 1, further comprising:

a) a generally circular base portion;

b) a centrally located second holding portion extending upwardly and perpendicular to the base portion;

c) the second holding portion being sized and shaped to accommodate and engage the leg portion.

8. The apparatus of claim 7, wherein the base and second holding portion are integrally formed of polypropylene.

9. An apparatus for fixating and elevating two sets of interconnected rebar lattice having individual longitudinal and transverse rebar intersections for use as support for poured concrete in roadway and other slab-type construction, comprising:

a) a first holding portion having an open ended recess with two opposing walls being generally U-shaped, the recess having a longitudinal axis and sized and shaped to receive a longitudinal rod;

b) an arc-shaped portion extending laterally outward from each opposing wall and perpendicular to the longitudinal axis of the recess, the arc-shaped portion having a transverse axis and sized and shaped to receive a longitudinal rod;

c) the arc-shaped portions each having a recess and opposing walls with one wall including a locking means;

d) a locking member having a generally arc-shaped portion and a locking means for attaching to the arc-shaped portions and engaging with the locking means of the arc-shaped portions;

e) a leg portion extending downwardly from the first holding portion;

f) the first holding portion adapted to secure the individual longitudinal and transverse rebar intersections of a first rebar lattice in a locking relationship while the leg portion holds the first interconnected rebar lattice in a preselected elevated position;

g) the locking member further including a leg portion extending upwardly and perpendicular to the locking member and a second holding portion attached to the leg portion, said second holding portion being adapted to secure the individual longitudinal and transverse rebar intersections of a second set of rebar lattice in a locking relationship; and

h) a second locking member for locking the individual longitudinal and transverse rebar intersections of the second set of rebar lattice in a locking relationship within the second holding portion.

10. The apparatus of claim 9, wherein the second holding portion further includes an open ended recess with two opposing walls being generally U-shaped, the recess having a longitudinal axis and sized and shaped to receive a longitudinal rod;

an arc-shaped portion extending laterally outward from each opposing wall and perpendicular to the longitudinal axis of the recess, the arc-shaped portion having a transverse axis and sized and shaped to receive a longitudinal rod;

the arc-shaped, portions each having a recess and opposing walls with one wall including a locking means.

11. The apparatus of claim 10, wherein the second locking member further includes locking means for attaching to the arc-shaped portions of the second holding portion and engaging with the locking means of the arc-shaped portions of the second holding portion the locking member having a generally arc-shaped portion.

12. The apparatus of claim 11, wherein the locking means of the locking members and the arc-shaped portions includes a non-releasable snap-type lock.