Dowel device with closed end speed cover

• US 8,007,199 B2
• Filed: 12/16/2010
• Issued: 08/30/2011
• Est. Priority Date: 12/14/2005
• Status: Active Grant

• Current Assignee: Shaw & Sons Inc
• Original Assignee: Shaw & Sons Inc
• Inventors: Shaw, Lee A., Shaw, Ronald D.
• Primary Examiner(s): ADDIE, RAYMOND W
• Application Number:
  US12/970,588
• Publication Number:
  US 20110085857A1
• Time in Patent Office: 257 Days
• Field of Search: 404/60, 404/61, 404/74, 14/731
• US Class Current: 404/74
• 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
• CPC Class Codes: E01C 19/504 adapted to, or provided with, means to maintain reinforcing or load transfer elements in a required position removable supports for positioning reinforcing or load transfer elements in general E01C23/045

Abstract

Disclosed are a concrete dowel placement devices and a method of utilizing the same. A metallic stud is driven, screwed, or otherwise attached to a form. The stud may be a unitary structure, or may be a hollow tube with conventional fastening means such as nails and screws extending through and holding the hollow tube to the form. A cover having an interior compartment substantially equal in diameter to the stud is slidably placed thereon, and a first enclosed area is developed with a plurality of forms. Concrete is poured into the first enclosed area, and upon curing, the form and the stud are removed, leaving the cover embedded in the concrete. A metallic dowel is inserted into the cover, and a second enclosed area is developed with like configured forms. The metallic dowel extends into the second enclosed area. Upon pouring concrete into the second enclosed area, a cold joint is formed between the concrete of the first enclosed area and the concrete of the second enclosed area, supported and braced by the metallic dowel.

Claims

1. A method of forming a cold joint between adjoining sequentially formed slabs of concrete, the method comprising the steps of:

(a) providing a concrete dowel placement device including;

a stud having a generally tubular body, a proximal stud end and a distal stud end; and

a unitary cover having a generally tubular body having an outer cover surface, an open proximal cover end disposable in contact with the form, a closed distal cover end integrally formed with the open proximal cover end, and a hollow cover interior compartment extending axially therein configured to slidably receive the stud;

(b) forming a first concrete pour area defined by a form;

(c) inserting the proximal stud end into the form;

(d) disposing the cover over the stud;

(e) pouring a first slab of concrete into the first enclosed area to embed the cover within the concrete; and

(f) removing the form from the first slab of concrete upon curing of the concrete, wherein the cover remains in the first slab of concrete and the stud becomes disengaged from the cover.

2. The method as recited in claim 1, further comprising the step of inserting a dowl into the cover embedded in the first slab of concrete.

3. The method as recited in claim 2, further comprising the step of forming a second concrete pour area adjacent the first slab of concrete with the form, the first slab of concrete defining at least a portion of the second concrete pour area, the dowl extending into the second concrete pour area.

4. The method as recited in claim 3, further comprising the step of pouring a second slab of concrete into the second concrete pour area to encapsulate the dowel.

5. The method as recited in claim 3, wherein the step of forming a second concrete pour area further includes the step of inserting a second stud into the form.

6. The method as recited in claim 5, wherein the step of forming a second concrete pour area further includes the step of attaching a second cover onto the second stud stud.

7. The method as recited in claim 1, wherein the dowel is constructed of stainless steel.

8. The method as recited in claim 1, wherein the cover is molded of plastic.

9. The method as recited in claim 1, wherein step (a) includes providing a cover defining a flange at the proximal end portion thereof.

10. The method as recited in claim 9, wherein step (d) includes disposing the cover over the stud such that the flange is disposed in abutting contact with the form.

11. The method as recited in claim 1, wherein step (a) further includes providing a stud sleeve circumferentially disposable about the stud distal end portion, and step (c) further includes the step of disposing the stud sleeve about the stud distal end portion.

12. A method of forming a cold joint between adjoining sequentially formed slabs of concrete, the method comprising the steps of:

(a) providing a concrete dowel placement device including;

a stud having a proximal stud end and a distal stud end; and

a cover having an open proximal cover end disposable in contact with the form, a closed distal cover end, and a hollow cover interior compartment extending axially therein configured to receive the stud;

(b) forming a first concrete pour area defined by a form;

(c) inserting the proximal stud end into the form;

(d) disposing the cover over the stud such that the proximal cover end is disposed in abutting contact with the form;

(e) pouring a first slab of concrete into the first enclosed area to embed the cover within the concrete; and

(f) removing the form from the first slab of concrete upon curing of the concrete, wherein the cover remains in the first slab of concrete and the stud becomes disengaged from the cover.

13. The method as recited in claim 12, wherein step (a) includes providing a cover having a hollow cover interior compartment that is complimentary to the stud.

14. The method as recited in claim 12, further comprising the step of inserting a dowl into the cover embedded in the first slab of concrete.

15. The method as recited in claim 14, further comprising the step of forming a second concrete pour area adjacent the first slab of concrete with the form, the first slab of concrete defining at least a portion of the second concrete pour area, the dowl extending into the second concrete pour area.

16. The method as recited in claim 15, further comprising the step of pouring a second slab of concrete into the second concrete pour area to encapsulate the dowel.

17. The method as recited in claim 15, wherein the step of forming a second concrete pour area further includes the step of inserting a second stud into the form.

18. The method as recited in claim 12, wherein step (a) includes providing a cover defining a flange at the proximal end portion thereof.

19. The method as recited in claim 18, wherein step (d) includes disposing the cover over the stud such that the flange is disposed in abutting contact with the form.

20. The method as recited in claim 12, wherein step (a) further includes providing a stud sleeve circumferentially disposable about the stud distal end portion, and step (c) further includes the step of disposing the stud sleeve about the stud distal end portion.