DOWEL DEVICE WITH CLOSED END SPEED COVER

• US 20100003080A1
• Filed: 09/17/2009
• Published: 01/07/2010
• 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.
• Granted Patent: US 7,874,762 B2
• Time in Patent Office: Days
• US Class Current: 404/88
• 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

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18. A concrete dowel placement device for use with a form, the form being used to define an enclosed area within which concrete is poured to form a first concrete slab, the form being removed from the enclosed area once the first concrete slab has cured, the concrete dowel placement device comprising:

a stud having a stud proximal end portion and a stud distal end portion, the stud proximal end portion being insertable into the form to mount the stud to the form, the stud distal end portion extending from the form into the enclosed area during formation of the first concrete slab, the stud being sized and configured to remain mounted to the form during removal of the form from the enclosed area after the first concrete slab has cured; and

a stud cover configured to be temporarily disposable in abutting contact with the form during formation of the first concrete slab, the stud cover having a cover body including a cover proximal end portion and a cover distal end portion, the cover proximal end portion defining an opening, the cover body defining an inner recess extending into the cover body from the cover proximal end portion toward the cover distal end portion, the inner recess being sized and configured to slidably receive the stud proximal end portion to maintain the stud cover in abutting contact with the form during formation of the first concrete slab, the inner recess further being sized and configured to allow the stud proximal end portion to be slidably removed therefrom to remove the stud cover from abutting contact with the form when the form is removed from the enclosed area after the first concrete slab has cured.

19. The concrete dowel placement device recited in claim 18, wherein the cover proximal end portion defines a flange, the flange being disposable in flush, abutting contact with the form.

20. The concrete dowel placement device recited in claim 18, wherein the stud is engageable with the form without extending through the form.

21. The concrete dowel placement device recited in claim 18, wherein the stud is a nail.

22. The concrete dowel placement device recited in claim 18, wherein the stud is a screw.

23. The concrete dowel placement device recited in claim 18, wherein the cover distal end portion defines a substantially cylindrical shape.

24. The concrete dowel placement device recited in claim 18, further comprising a sleeve stud circumferentially disposable about the stud distal end portion, the inner recess of the cover body being sized and configured to receive the sleeve stud and the stud distal end portion when the sleeve stud is disposed about the stud distal end portion.

25. The concrete dowel placement device recited in claim 18, wherein the stud proximal end portion defines a tapered shape defining a point for ease in driving the stud proximal end portion into the form.

26. The concrete dowel placement device recited in claim 18, wherein the stud proximal end portion is threaded and defines a tapered shape defining a point for screwing the stud into the form.

27. The concrete dowel placement device recited in claim 18, wherein the stud cover is formed of plastic.

28. The concrete dowel placement device recited in claim 18, wherein the stud is ¼

inch in diameter.

29. A concrete dowel alignment system for use with a form while constructing a first concrete slab and an adjacent second concrete slab, the concrete dowel alignment system comprising:

a stud having a stud proximal end portion and a stud distal end portion, the stud proximal end portion being disposable within the form, the stud distal end portion extending from the form when the stud proximal end portion is disposed within the form;

a stud cover temporarily disposable in abutting contact with the form, the stud cover having a cover body including a cover proximal end portion and a cover distal end portion, the cover proximal end portion defining an opening, the cover body defining an inner recess extending into the cover body from the cover proximal end portion toward the cover distal end portion, the inner recess being sized and configured to temporarily slidably receive the stud proximal end portion to maintain the stud cover in abutting contact with the form during formation and curing of the first concrete slab, the inner recess being sized and configured to enable removal of the stud proximal end portion therefrom after the first concrete slab has cured; and

a dowel having a first end portion and a second end portion, the first end portion being sized and configured to be slidably received within the inner recess after the stud proximal end portion has been removed from the inner recess, the second end portion to be encapsulated within the second concrete slab.

30. The concrete dowel placement device recited in claim 29, wherein the cover proximal end portion defines a flange, the flange being disposable in flush, abutting contact with the form.

31. The concrete dowel placement device recited in claim 29, wherein the stud is engageable with the form independent of extending through the form.

32. The concrete dowel placement device recited in claim 29, wherein the cover distal end portion defines a substantially cylindrical shape.

33. The concrete dowel placement device recited in claim 29, further comprising a sleeve stud circumferentially disposable about the stud distal end portion, the inner recess of the cover body being sized and configured to receive the sleeve stud and the stud distal end portion when the sleeve stud is disposed about the stud distal end portion.

34. The concrete dowel placement device recited in claim 29, wherein the stud proximal end portion defines a tapered shape defining a point for ease in driving the stud proximal end portion into the form.

35. The concrete dowel placement device recited in claim 29, wherein the stud proximal end portion is threaded and defines a tapered shape defining a point for screwing the stud into the form.

36. The concrete dowel placement device recited in claim 29, wherein the stud cover is formed of plastic.

37. The concrete dowel placement device recited in claim 29, wherein the stud is ¼

inch in diameter.