Method for fastening concrete reinforcement steel using deformable metal fastener clips

• US 5,881,460 A
• Filed: 09/10/1997
• Issued: 03/16/1999
• Est. Priority Date: 09/10/1997
• Status: Expired due to Fees

• Current Assignee: Nowell A. Carter, Stephen C. Nowell III
• Original Assignee: Nowell A. Carter, Stephen C. Nowell III
• Inventors: Nowell, Stephen C. III, Nowell, A. Carter
• Primary Examiner(s): Bryant, David P.
• Application Number:
  US08/926,917
• Time in Patent Office: 552 Days
• Field of Search: 29/897.34, 29/460, 29/513, 29/525.05, 29/816, 29/243.56, 72/409.02, 72/409.03, 72/453.16, 52/685, 52/686, 52/688, 52/665, 52/719
• US Class Current: 29/897.34
• CPC Class Codes: B25B 27/146 Clip clamping hand tools
• CPC Class Codes: E04G 21/122 Machines for joining reinforcing bars
• CPC Class Codes: Y10T 29/49632 Metal reinforcement member for nonmetallic, e.g., concrete, structural element
• CPC Class Codes: Y10T 29/49888 Subsequently coating
• CPC Class Codes: Y10T 29/49922 by bending over projecting prongs
• CPC Class Codes: Y10T 29/49954 Fastener deformed after application

Abstract

An apparatus and method for fastening concrete reinforcement steel members together using deformable metal fastener clips. The concrete reinforcement steel members are used to strengthen concrete structures in a known manner and can be in the form of wire mesh sheets or rebar positioned in a grid pattern. The deformable metal fastener clips are generally U-shaped members that are open on one side before being deformed so that the fastening clips can be easily placed over two or more adjacent reinforcement steel members. The metal fastener clips are deformed around the reinforcement steel members to close the open side of the metal fastener clips, thereby securing the reinforcement steel members together in a desired formation. The free ends of each fastener clip preferably overlap each other after the fastener clips are closed around the reinforcement steel members. The reinforcement steel members can be secured together within a concrete form, or they can be secured together offsite and placed in a concrete form before filling the form with concrete. The deformable fastener clips can be used to efficiently secure reinforcement steel members together during concrete construction with a simple squeeze of the fastener clips around the reinforcement steel members. The steel members can thus be secured together in substantially less time than other conventional methods, and with substantially less cost in both materials and labor.

Claims

1. A method of fastening concrete reinforcement steel, comprising the steps of:

providing a generally U-shaped, deformable fastening clip consisting of first and second generally straight legs and a body portion connecting said first and second legs, said fastening clip having an open side;

positioning at least two reinforcement steel rebar members for a concrete structure adjacent to each other;

placing said open side of said deformable fastening clip over said rebar members; and

deforming said first and second legs of said fastening clip about said rebar members to thereby secure said rebar members together.

2. The method of fastening concrete reinforcement steel according to claim 1, wherein said first and second legs of said deformable fastening clip have first and second ends, respectively, and said deforming step comprises deforming said fastening clip until said first and second ends of said fastening clip overlap each other.

3. The method of fastening concrete reinforcement steel according to claim 1, further comprising the step of forming concrete around said rebar members secured by said fastening clip.

4. The method of fastening concrete reinforcement steel according to claim 1, further comprising the steps of positioning said rebar members in a grid pattern and securing said rebar members together at selected locations using a plurality of said deformable fastening clips.

5. The method of fastening concrete reinforcement steel according to claim 1, wherein said rebar members comprise wire mesh sheets of rebar members.

6. The method of fastening concrete reinforcement steel according to claim 1, wherein said step of providing a deformable fastening clip comprises providing said deformable fastening clip with at least one of said first and second legs being bent away from a plane containing said body portion of the deformable fastening clip to prevent said first and second legs from abutting and interfering with each other when the fastening clip is closed over said rebar members.

7. The method of fastening concrete rebar according to claim 1, wherein said step of providing a deformable fastening clip comprises providing said deformable fastening clip with said first and second legs being coplanar with said body portion, and further comprising the step of deforming said fastening clip using offset jaws to prevent said first and second legs from abutting and interfering with each other as the fastening clip is closed over said reinforcement steel members.

8. The method of fastening concrete reinforcement steel according to claim 1, wherein said deformable fastening clip is made from 12 to 14 gage steel wire having a length greater than approximately four inches.