Rebar coupler
OwnerJames S. Andrusinventor
Life of this patent
Estimating the term…
Abstract
A rebar coupler for connecting reinforcing rods in end-to-end relation including a pair of hollow steel split pipe members having nuts welded thereto. The split pipe members are mounted on the ends of the reinforcing rods and bolted together. The split pipe members are annealed such that when bolted together the deformations on the outer surfaces of the rods embed themselves within the split pipe members to provide a very strong connection.
Claims11
A coupler for connecting the ends of two axially aligned and abutting reinforcing rods having pattern deformations on the outer surfaces thereof, said coupler comprising
- two separable elongated members, the members each including at least an arcuate portion which portions cooperate to form a hollow cylinder when the two members are joined together, said members being adapted to be mounted around the abutting ends of the rods, said arcuate portions initially having generally smooth inner surfaces adaptable to fit about the periphery of said rods, said inner surfaces being deformable such that the application of sufficient clamping force on said members results in said pattern deformations of said rods being embedded within said inner surfaces of said arcuate portions of said members, and
- clamping means on said members to apply and maintain said clamping force and to hold said members in place around said rods.
A method of coupling the ends of two axially aligned and abutting reinforcing rods having pattern deformations on the outer surfaces thereof comprising:
- attaching at least one nut having internal screw threads onto a first member, the first member having an arcuate portion,
- attaching at least one ring onto a second member, the second member having an arcuate portion, said arcuate portions of said first and second members cooperating to form a hollow cylinder having inner cylindrical, generally smooth surfaces adaptable to fit about the periphery of said rods, said ring positioned so as to be aligned with said nut,
- mounting said first and second members around adjacent ends of said rods so that said arcuate portions engage said rods and
- passing a screw threaded bolt through said ring and tightening said bolt onto said nut so as to apply sufficient clamping force to embed said pattern deformations of said rods within said inner surfaces of said arcuate portions of said members.
Dependencies are inferred from the claim text.