Concrete dowel placement device and methods of use

• US 20090060657A1
• Filed: 09/05/2007
• Published: 03/05/2009
• Est. Priority Date: 09/05/2007
• Status: Active Grant

• Current Assignee: Earl Remmert, Ming Liang, Steve Albritton
• Original Assignee: Earl Remmert, Ming Liang, Steve Albritton
• Inventors: Liang, Ming, Remmert, Earl, Albritton, Steve
• Granted Patent: US 7,905,680 B2
• Time in Patent Office: Days
• US Class Current: 404/72
• CPC Class Codes: E01C 11/14 Dowel assembly ; Design or construction of reinforcements in the area of joints coupling devices for prefabricated units E01C5/005; combined with characteristic packings E01C11/08 - E01C11/12; removable holders E01C23/045

Abstract

Provided herein are a concrete dowel placement device and methods of use. The device 100 generally comprises a dowel receiving sleeve 110, a flange 120 formed to extend perpendicularly and completely about an open end b of the dowel receiving sleeve and at least one tooth-like locking structure 140a,b integrally formed on the outer surface 111 of the sleeve and proximate to the flange. The combination of the flange and the tooth-like locking structure secures the deviced to a concrete form so that a dowel rod 150 or piece of rebar placed therein maintains its position during a concrete pour.

Claims

1. A concrete dowel placement device, comprising:

a dowel receiving sleeve having a substantially cylindrical body with an outer surface, an open proximal end, a distal end, and an inner hollow compartment extending longitudinally therethrough;

a flange formed to extend perpendicularly and completely about the open end of the dowel receiving sleeve; and

at least one tooth-like locking structure integrally formed on the outer surface of the sleeve proximate to the inner flange surface.

2. The concrete dowel placement device of claim 1, further comprising:

a stop on the receiving sleeve proximate to the distal end and extending a distance into the inner hollow compartment.

3. The concrete dowel placement device of claim 1, further comprising:

one or more gussets formed longitudinally along the outer surface of the receiving sleeve and in supporting contact with an inner surface of the flange.

4. The concrete dowel placement device of claim 1, wherein the receiving sleeve distal end is tapered to a substantially flat surface having an opening therethrough.

5. The concrete dowel placement device of claim 1, wherein the interior hollow compartment has a size and configuration permitting a dowel rod or piece of rebar to be slidably inserted longitudinally through a central aperture comprising the flange into the receiving sleeve.

6. The concrete dowel placement device of claim 1, wherein the flange has substantially flat outer and inner surfaces, said inner surface of the flange held in abutting contact with a substantially flat outer surface of a concrete form.

7. The concrete dowel placement device of claim 6, wherein the flange has a substantially circular shape or a hexagonal shape.

8. The concrete dowel placement device of claim 1, wherein the locking structure is a reverse tooth integrally formed from the outer surface of the sleeve proximate to the inner flange surface, said reverse tooth having a distal end projecting angularly from the outer sleeve surface toward the inner flange surface and a proximal end formed on the outer sleeve surface.

9. The concrete dowel placement device of claim 8, wherein a distance between the inner surface of the flange and the distal end of the reverse tooth is about equal to a thickness of a concrete form against which the inner surface of the flange abuts.

10. The concrete dowel placement device of claim 9, wherein the concrete form is wood.

11. The concrete dowel placement device of claim 1, wherein the device is formed of molded plastic, wood or metal.

20. The concrete dowel placement device of claim 1, wherein the device is formed of molded plastic, wood or metal.

21. A method for securing a dowel placement device to a concrete form, comprising:

providing a wooden concrete form having a plurality of holes along a length thereof; and

inserting the dowel placement device of claim 1 through each of the holes such that the inner surface of the flange abuts an outer surface of the wooden form and the tooth-like locking structure(s) abuts an inner surface of the wooden form to lock the device against the wooden form thereby securing the device thereto.

22. The method of claim 21, further comprising:

positioning a dowel rod or piece of rebar within the receiving sleeve of each device.

23. The method of claim 22, further comprising:

pouring concrete within the concrete form.

12. A concrete dowel placement device, comprising:

a dowel receiving sleeve having a substantially cylindrical body with an outer surface, an open proximal end, a distal end, and an inner hollow compartment extending longitudinally therethrough;

a stop on the receiving sleeve proximate to the distal end and extending a distance into the inner hollow compartment;

a flange formed to extend perpendicularly and completely about the open end of the dowel receiving sleeve, said flange having substantially flat outer surface and inner surfaces; and

at least one reverse tooth integrally formed from the outer surface of the sleeve proximate to the inner flange surface, said reverse tooth having a distal end projecting angularly from the outer sleeve surface toward the inner flange surface and a proximal end formed on the outer surface of the sleeve.

13. The concrete dowel placement device of claim 12, further comprising:

one or more gussets formed longitudinally along the outer surface of the receiving sleeve and in supporting contact with the inner surface of the flange.

14. The concrete dowel placement device of claim 12, wherein the receiving sleeve distal end is tapered to a substantially flat surface having an opening therethrough.

15. The concrete dowel placement device of claim 12, wherein the interior hollow compartment has a size and configuration permitting a dowel rod to be slidably inserted longitudinally through a central aperture comprising the flange into the receiving sleeve.

16. The concrete dowel placement device of claim 12, wherein the flange has a substantially circular shape or a substantially hexagonal shape.

17. The concrete dowel placement device of claim 12, wherein the inner surface of the flange is held in abutting contact with a flat surface of a concrete form.

18. The concrete dowel placement device of claim 12, wherein a distance between the inner surface of the flange and the distal end of the reverse tooth is about equal to a thickness of a concrete form against which the inner surface of the flange abuts.

19. The concrete dowel placement device of claim 16, wherein the concrete form is wood.