Disk plate concrete dowel system

• US 6,926,463 B2
• Filed: 08/13/2003
• Issued: 08/09/2005
• Est. Priority Date: 08/13/2003
• Status: Expired due to Term

• Current Assignee: Shaw & Sons Inc
• Original Assignee: Lee A. Shaw, Ronald D. Shaw
• Inventors: Shaw, Lee A., Shaw, Ronald D.
• Primary Examiner(s): Will, Thomas B.
• Assistant Examiner(s): Addie, Raymond W
• Application Number:
  US10/640,556
• Publication Number:
  US 20050036835A1
• Time in Patent Office: 727 Days
• Field of Search: 404 51- 70
• US Class Current: 404/60
• 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 is a disc dowel system interposed between adjacent first and second concrete pours defining a pour joint therebetween. The disc dowel system comprises a positioner bracket, a pocket former and a dowel plate. The positioner bracket has a vertically disposed base flange and a horizontally disposed plate portion extending therefrom. The base flange is rigidly attachable to a concrete form. The pocket former has a horizontally extending interior compartment with an open, generally straight side and an arch-shaped compartment perimeter extending therefrom. The straight side is aligned with the pour joint. The pocket former is positioned within the first pour by the positioner bracket. The dowel plate has a generally rounded shape with an embedded portion and a slidable portion. The embedded portion is rigidly encapsulated within the second pour and the slidable portion is slidably disposed within the pocket former such that the dowel plate permits relative horizontal movement of the first and second pours while restricting relative vertical movement thereof.

Claims

1. A disc dowel system interposed between adjacent first and second concrete pours defining a pour joint therebetween, the disc dowel system comprising:

a dowel plate having a generally rounded shape with an embedded portion and a slidable portion; and

a pocket former disposed within the first pour and having a horizontally extending interior compartment with an open, generally straight side and an arch-shaped compartment perimeter extending therefrom, the straight side being aligned with the pour joint, the arch-shaped compartment perimeter having a perimeter flange extending therearound of generally vertically-oriented cross sectional shape configured for restricting horizontal movement of the pocket former within the first pour;

wherein the embedded portion is rigidly encapsulated within the second pour and the slidable portion is slidably disposed within the pocket former such that the dowel plate permits relative horizontal movement of the first and second pours while restricting relative vertical movement thereof.

2. The pour joint of claim 1 wherein the interior compartment is sized and configured to be complementary to the dowel plate.

3. The pour joint of claim 1 wherein the vertically-oriented cross section includes flared upper and lower flange portions configured for restricting horizontal movement of the pocket former within the first pour.

4. The pour joint of claim 1 wherein the pocket former includes upper and lower outer surfaces each having a pair of spaced apart pocket former alignment ribs extending thereacross in a generally perpendicular direction from the pour joint.

6. The pour joint of claim 2 wherein the dowel plate has a generally circular shape.

7. The pour joint of claim 2 wherein the dowel plate has a generally elliptical shape.

8. The pour joint of claim 1 wherein the dowel plate is fabricated from metal plate.

9. The pour joint of claim 8 wherein the metal plate is carbon steel plate.

10. The pour joint of claim 1 wherein the dowel plate is fabricated from carbon fiber.

11. The pour joint of claim 1 wherein the pocket former is fabricated from plastic material.

5. A disc dowel system interposed between adjacent first and second concrete pours defining a pour joint therebetween, the disc dowel system comprising:

a dowel plate having a generally rounded shape with an embedded portion and a slidable portion; and

a pocket former disposed within the first pour and having a horizontally extending interior compartment with an open, generally straight side and an arch-shaped compartment perimeter extending therefrom, the straight side being aligned with the pour joint, the pocket former including upper and lower outer surfaces each having a pair of spaced apart pocket former alignment ribs extending thereacross in a generally perpendicular direction from the pour joint, each one of the pocket former alignment ribs having a flared cross section configured for restricting vertical movement of the pocket former within the first pour;

wherein the embedded portion is rigidly encapsulated within the second pour and the slidable portion is slidably disposed within the pocket former such that the dowel plate permits relative horizontal movement of the first and second pours while restricting relative vertical movement thereof.

12. A disc dowel system for installing a dowel plate within a pour joint between adjacent first and second concrete pours, the pour joint being formed by a removable concrete form, the dowel plate having a generally rounded shape with an embedded portion and a slidable portion, the disc dowel system comprising:

a positioner bracket having a vertically disposed base flange and a horizontally disposed plate portion extending therefrom, the base flange being rigidly attachable to the concrete form; and

a pocket former having an interior compartment with an open, generally straight side and an arch-shaped compartment perimeter extending therefrom, the compartment perimeter having a perimeter flange extending therearound of generally vertically-oriented cross sectional shape configured for restricting horizontal movement of the pocket former within the first pour;

wherein the plate portion is sized and configured to be complementary to the interior compartment such that the positioner bracket may slidably receive the pocket former with the straight side generally abutting the base bracket during pouring of the first pour prior to removal of the concrete form and positioner bracket for subsequent insertion of the slidable portion into the interior compartment and pouring of the second pour to encapsulate the embedded portion therewithin.

17. The pour joint of claim 12 wherein the pocket former has upper and lower outer surfaces each having a pair of spaced apart pocket former alignment ribs extending generally perpendicularly from the pour joint with each one of the pocket former alignment ribs having a flared cross section configured for restricting vertical movement of the pocket former within the first pour.

18. The pour joint of claim 12 wherein the base flange includes a pair of apertures extending therethrough and sized to permit the passage of a fastener through the base flange for facilitating the rigid attachment of the positioner bracket to the concrete form.

19. The pour joint of claim 12 wherein the positioner bracket and the pocket former are fabricated from plastic.

13. A disc dowel system for installing a dowel plate within a pour joint between adjacent first and second concrete pours, the pour joint being formed by a removable concrete form, the dowel plate having a generally rounded shape with an embedded portion and a slidable portion, the disc dowel system comprising:

a positioner bracket having a vertically disposed base flange and a horizontally disposed plate portion extending therefrom, the base flange being rigidly attachable to the concrete form; and

a pocket former having an interior compartment with an open, generally straight side and an arch-shaped compartment perimeter extending therefrom;

wherein;

the plate portion is sized and configured to be complementary to the interior compartment such that the positioner bracket may slidably receive the pocket former with the straight side generally abutting the base bracket during pouring of the first pour prior to removal of the concrete form and positioner bracket for subsequent insertion of the slidable portion into the interior compartment and pouring of the second pour to encapsulate the embedded portion therewithin

the plate portion including upper and lower exterior surfaces each having a pair of spaced apart positioner alignment ribs extending generally perpendicularly from the pour joint; and

the interior compartment including upper and lower inner surfaces each having a pair of spaced apart alignment grooves sized and configured to receive the positioner alignment ribs such that the pocket former is held in alignment with the positioner bracket during pouring of the first pour.

14. The pour joint of claim 13 wherein the dowel plate has a generally circular shape.

15. The pour joint of claim 13 wherein the dowel plate has a generally elliptical shape.

16. A disc dowel system for installing a dowel plate within a pour joint between adjacent first and second concrete pours, the pour joint being formed by a removable concrete form, the dowel plate having a generally rounded shape with an embedded portion and a slidable portion, the disc dowel system comprising:

a positioner bracket having a vertically disposed base flange and a horizontally disposed plate portion extending therefrom, the base flange being rigidly attachable to the concrete form;

a pocket former having an interior compartment with an open, generally straight side and an arch-shaped compartment perimeter extending therefrom;

a perimeter flange extending around the pocket former perimeter and having a generally vertically-oriented cross section with flared upper and lower flange portions configured for restricting horizontal movement of the pocket former within the first pour

wherein the plate portion is sized and configured to be complementary to the interior compartment such that the positioner bracket may slidably receive the pocket former with the straight side generally abutting the base bracket during pouring of the first pour prior to removal of the concrete form and positioner bracket for subsequent insertion of the slidable portion into the interior compartment and pouring of the second pour to encapsulate the embedded portion therewithin.

20. A method for installing a dowel plate within a pour joint between adjacent first and second concrete pours using a pocket former having an arch-shaped interior compartment with an open, straight side and being configured complementary to the dowel plate having a rounded shape with an embedded portion and a slidable portion, the method comprising the steps of:

positioning a concrete form along a desired location of the pour joint;

positioning the pocket former adjacent to the concrete form such that the interior compartment extends substantially horizontally outwardly therefrom with the straight side being in abutment therewith;

pouring the first pour such that the pocket former is rigidly encapsulated therewithin;

removing the concrete form after the first pour has cured;

inserting the slidable portion into the interior compartment; and

pouring the second pour such that the embedded portion is rigidly encapsulated within the second pour and the slidable portion is slidably disposed within the pocket former.

21. The method of claim 20 using a positioner bracket having a vertically disposed base flange and a plate portion extending horizontally therefrom, the method comprising the additional steps of:

securing the base bracket to the concrete form such that such that the positioner bracket is rigidly attached thereto with the plate portion extending substantially horizontally outwardly therefrom;

sliding the pocket former over the positioner bracket such that the straight side is in abutment with the base flange; and

removing the positioner bracket from the pocket former after the first pour has cured.