Method of forming concrete and an apparatus for transferring loads between concrete slabs

• US 20050166531A1
• Filed: 03/11/2005
• Published: 08/04/2005
• Est. Priority Date: 02/09/2005
• Status: Abandoned Application

• Current Assignee: Ez Form, Inc.
• Original Assignee: Ez Form, Inc.
• Inventors: McDonald, Stephen F.
• Application Number:
  US11/077,557
• Publication Number:
  US 20050166531A1
• Time in Patent Office: Days
• US Class Current: 52/836
• 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: E04F 15/14 Construction of joints, e.g. dividing strips E04F15/02005 takes precedence; sealing joints not restricted to flooring E04B1/68 , construction of joints in roads or airfields E01C11/02
• CPC Class Codes: E04G 11/365 Stop-end shutterings end panels for walls E04G11/085

Abstract

An apparatus for forming concrete includes a form having a slot configured to closely receive a plate. The slot is defined by one or more annular surfaces having central axes perpendicular to a direction in which the slot receives the plate. A method for forming same includes providing a sheet of form material; disposing a release layer on the sheet; cutting the sheet into a plurality of forms having a predetermined form height; and cutting a slot in each of each of the plurality of forms. Another apparatus for forming concrete includes a plate having a first portion and a second portion. A coating is disposed on the first portion. When disposed in a joint defined by a first volume of concrete and a second volume of concrete, the first volume of concrete adheres only to the coating and the second volume of concrete adheres only to the second portion. A method for forming concrete includes providing a plate having a coated first portion and a second portion; providing a form having a slot configured to closely receive the second portion; inserting the second portion in the slot; positioning the form to receive concrete; pouring a volume of concrete on the form and the first portion; curing the volume of concrete and defining cured concrete; and removing the form from the cured concrete. The plate remains in the cured concrete.

Claims

1. Apparatus for forming concrete comprising a form having a slot configured to closely receive a plate, wherein said slot is defined by one or more annular surfaces having central axes perpendicular to a direction in which said slot receives the plate.

2. Apparatus of claim 1, wherein said form has a side surface and a back surface with which said annular surfaces define proximal intersections and distal intersections configured to contact corresponding proximal portions and distal portions of a plate.

3. Apparatus of claim 1, wherein said form has a back surface, a top surface and a chamfer interposed therebetween defining an angle relative to said top surface ranging from 10°

to 89°

.

4. Apparatus of claim 1, further comprising a release layer on said form.

5. Apparatus of claim 4, wherein said release layer is constructed of phenolic paper, kraft paper, acrylic, latex, melamine, Formica®

, foil, oil, high density overlay, metal or combinations thereof.

6. Apparatus of claim 1, wherein said form is constructed of oriented strand board, dimensional lumber, particle board, metal, plastic, cardboard, fiber board, polyurethane foam, Styrofoam®

or combinations thereof.

7. Apparatus of claim 1, wherein said form has a width ranging from 0.125 to 3.000 inches.

8. Apparatus of claim 1, wherein said form has a top surface width ranging from 0.125 to 0.875 inch.

9. Method of making an apparatus for forming concrete comprising:

providing a sheet of form material;

disposing a release layer on the sheet;

cutting the sheet into a plurality of forms having a predetermined form height; and

cutting a slot in each of each of the plurality of forms.

10. Method of claim 9, wherein the slot is defined by one or more annular surfaces having central axes perpendicular to a direction in which the slot receives a plate.

11. Method of claim 9, wherein each of the plurality of forms has a side surface and a back surface with which the annular surfaces define proximal intersections and distal intersections configured to contact corresponding proximal portions and distal portions of a plate.

12. Method of claim 9, wherein each of the plurality of forms has a back surface and a top surface, further comprising cutting a chamfer between the back surface and the top surface in each of the plurality of forms.

13. Apparatus for transferring a load between a first concrete slab and a second concrete slab, defining a joint, comprising:

a plate having a first portion and a second portion; and

a coating disposed on said first portion;

whereby, when disposed in the joint;

the first concrete slab contacts only said coating and the second concrete slab adheres only to said second portion; and

the first concrete slab may move relative to said plate.

14. Apparatus of claim 13, wherein said coating has a thickness of about 0.03 inches.

15. Apparatus of claim 13, wherein said coating slides relative to said plate, said coating slides relative to the first concrete slab or combinations thereof.

16. Apparatus of claim 13, wherein, when disposed in the joint, said plate defines a rhombus or rectangle having opposite corners aligned with the joint when disposed therein.

17. Apparatus of claim 13, wherein, when disposed in the joint, said plate defines a rhombus or rectangle in a plane perpendicular to the joint and having sides aligned with and perpendicular to the joint.

18. Apparatus of claim 13, wherein said plate is shear formed.

19. Apparatus of claim 13, further comprising a form having a slot configured to closely receive said second portion.

20. Apparatus of claim 19, wherein said form is constructed of oriented strand board, dimensional lumber, particle board, metal, plastic, cardboard, fiber board, polyurethane foam, Styrofoam®

or combinations thereof.

21. Apparatus of claim 19, wherein said form has a back surface, a top surface and a chamfer interposed therebetween defining an angle relative to said top surface ranging from 10°

to 89°

.

22. Apparatus of claim 19, wherein said form has a width ranging from 0.125 to 3.000 inches.

23. Apparatus of claim 19, wherein said form has a top surface width ranging from 0.125 to 0.875 inch.

24. Apparatus of claim 19, wherein said slot defines one or more annular surfaces having central axes perpendicular to a direction in which said slot receives said second portion.

25. Apparatus of claim 24, wherein said form has a side surface and a back surface with which said annular surfaces define proximal intersections and distal intersections configured to contact corresponding proximal portions and distal portions of said plate.

26. Apparatus of claim 19, further comprising a release layer on said form.

27. Apparatus of claim 26, wherein said release layer is constructed of phenolic paper, kraft paper, acrylic, latex, melamine, Formica®

, foil, oil, high density overlay, metal or combinations thereof.

28. Method of forming concrete comprising:

providing a plate having a coated first portion and a second portion;

providing a form having a slot configured to closely receive the second portion;

inserting the second portion in the slot;

positioning the form to receive concrete;

pouring a volume of concrete on the form and the first portion;

curing the volume of concrete and defining cured concrete; and

removing the form from the cured concrete;

wherein the plate remains in the cured concrete.

29. Method of claim 28, further comprising:

pouring a second volume of concrete adjacent to the cured concrete and on the second portion; and

curing the second volume of concrete and defining a second cured concrete.