Patents Assigned to Rebar Couplerbox, Inc.
  • Reinforced concrete containing coated steel reinforcing member
    Patent number: 5100738
    Abstract: The reinforcing steel has a protective coating formed from a first layer of synthetic material and a second layer of aluminum or aluminum alloy between the first layer and the outer surface of the reinforcing steel.
    Type: Grant
    Filed: July 12, 1990
    Date of Patent: March 31, 1992
    Assignee: Rebar Couplerbox, Inc.
    Inventor: Helmut Graf