Concrete slab attachment device and method

• US 9,797,139 B2
• Filed: 03/03/2016
• Issued: 10/24/2017
• Est. Priority Date: 03/04/2015
• Status: Active Grant

• Current Assignee: Bruno Savard
• Original Assignee: Bruno Savard
• Inventors: Savard, Normand
• Primary Examiner(s): Herring, Brent W
• Application Number:
  US15/060,108
• Publication Number:
  US 20160258163A1
• Time in Patent Office: 600 Days
• Field of Search: 52414, 52576, 52578, 525821, 525831, 525861, 525851, 52596, 52393, 5239604, 5239605, 527452
• CPC Class Codes: E04C 2/044 of concrete E04C2/049 takes precedence
• CPC Class Codes: E04C 2/38 with attached ribs, flanges, or the like, e.g. framed panels concerned with attaching to other panels or elements to form a structure, see the places for the relevant structure, e.g. E04B2/00
• CPC Class Codes: E04C 5/01 Reinforcing elements of metal, e.g. with non-structural coatings E04C5/08 takes precedence
• CPC Class Codes: E04C 5/162 Connectors or means for connecting parts for reinforcements E04C5/168 takes precedence

Abstract

An attachment device attaches adjacent first and second concrete pieces to one another along corresponding first and second interfacing side surfaces thereof, thereby forming a concrete piece attachment arrangement. The device includes an elongate base member having opposed first and second portions, and first and second lateral members securing to and respectively extending substantially perpendicularly from first and second ends of the base member. The first and second portions of the base member extend within first and second recesses respectively formed into the concrete pieces, in a direction generally perpendicular to the first and second interfacing side surfaces. The first and second lateral member respectively extend through bore holes extending through the first and second concrete pieces and connecting with the respective first and second recesses. A method for attaching the concrete pieces to one another with an attachment piece is also described.

Claims

1. A method for attaching two adjacent first and second concrete pieces to one another along corresponding first and second interfacing side surfaces thereof with an attachment device connecting to both the first and second concrete pieces, said first and second concrete pieces having first and second recesses formed therein respectively, said first and second concrete pieces having first and second bore holes respectively extending there through adjacent the corresponding interfacing side surface and connecting with the first and second recesses respectively, said attachment device having an elongate base member and first and second lateral members extending respectively at first and second ends thereof and substantially perpendicularly therefrom, said method comprising the steps of:

placing the first and second interfacing side surfaces in general abutment contact with each other, with the first and second recesses in alignment with one another;

positioning the attachment device across the first and second concrete pieces with the elongate base member extending into the first and second recesses and with the first and second lateral members extending through said first and second bore holes of said first and second concrete pieces, respectively; and

filling at least said first and second bore holes of the first and second concrete pieces around the first and second lateral members, and an interstice between the first and second interfacing side surfaces with concrete;

wherein the first and second recesses are first and second bottom recesses and extend into the first and second concrete pieces from corresponding bottom surfaces thereof, the first and second concrete pieces further including first and second top recesses respectively extending therein from corresponding top surfaces thereof, the first and second top recesses being substantially parallel to the corresponding first and second bottom recesses and connecting with a corresponding said first and second bore holes, wherein the step of positioning includes;

positioning a top transverse member of the attachment device across the first and second concrete pieces to extend into the first and second top recesses and to connect with at least one said first and second lateral members; and

wherein the step of filling includes;

filling the first and second bottom recesses and the first and second top recesses with concrete so as to ensure a strong interface between the first and second concrete pieces.

2. The method of claim 1, wherein at least one said first and second concrete pieces includes a side recess extending therein from a corresponding said first and second interfacing side surfaces, the side recess communicating with corresponding said first and second bottom recesses and corresponding said first and second top recesses, wherein the step of filling further includes filling the side recess with concrete.

3. The method of claim 2, wherein the side recess is substantially centrally located relative to the corresponding said first and second interfacing side surfaces.

4. The method of claim 1, wherein at least a top outer edge of at least one said interfacing side surfaces is chamfered, wherein the step of filling further includes filling at least a top edge chamfered recess of at least one of said interfacing side surfaces with concrete.

5. The method of claim 1, wherein the elongate base member includes an attachment tab extending substantially perpendicularly therefrom, wherein the step of positioning further includes attaching the attachment tab to one of the first and second concrete pieces adjacent a corresponding one said interfacing side surfaces.