Patents Assigned to Merkle & Associates, Inc.
  • Patent number: 4073243
    Abstract: A high temperature industrial furnace roof assembly wherein two refractory bricks are held in adjacent position by suitable securement and have a hanger rod extending from the assembly to suspend the roof assembly from a support structure in desired position in a furnace roof. The hanger rod is maintained in locked position when the weight of the roof assembly is placed upon it. The hanger rod may be depressed into the refractory bricks permitting free rotation of the hanger rod with respect to the hanger and brick assembly and locked into desired position at 90.degree. increments by a force applied to the hanger rod in a direction away from the brick assembly. The roof assembly of this invention is particularly desirable for furnace roof repair and provides for easy installation in operating high temperature furnaces permitting the long axes of the repair assembly to be changed on the jobsite by rotation of the hanger.
    Type: Grant
    Filed: December 1, 1976
    Date of Patent: February 14, 1978
    Assignee: Merkle & Associates, Inc.
    Inventor: Frank P. Merkle, Jr.
  • Patent number: 3958519
    Abstract: A high temperature refractory structure having refractory brick lining including a support frame, a plurality of spaced hanger beams inwardly from the support frame and having opposed flanges, a plurality of spaced hanger beam clips engaging one of the hanger beam flanges for attachment to a support frame, a plurality of refractory hangers engaging the other of the hanger beam flanges, and a plurality of refractory bricks supported by the refractory hangers, the refractory hangers engaging hanger flanges of refractory bricks thereby supporting the refractory brick lining, the refractory brick hanger flanges being at approximately right angles to the hanger beam flanges. Also disclosed is a sheet metal beam clip of substantially U-shape for fastening one beam at right angles to another.
    Type: Grant
    Filed: February 18, 1975
    Date of Patent: May 25, 1976
    Assignee: Merkle & Associates, Inc.
    Inventor: Frank P. Merkle, Jr.