Patents Assigned to Schaefer Brothers Incorporated
  • Long life cover for heat chamber
    Patent number: 4906184
    Abstract: A method and means of heat insulating the opening in a heat chamber, e.g., a soaking pit, comprises applying a cover including an inside lining of ceramic fibres, under a load which is selected so that the fibres contact a peripheral wall of the opening under a pressure which is sufficient to form a seal with the wall but insufficient to cause the fibres to be crushed.
    Type: Grant
    Filed: December 7, 1988
    Date of Patent: March 6, 1990
    Assignee: Schaefer Brothers Incorporated
    Inventor: Robert Milluzzi
  • Heat chamber lining
    Patent number: 4733620
    Abstract: An insulating lining is made up of modules of ceramic fibre, each hung over a module rod. The modules are held in tight side by side relation by engaging the rods with respective engaging means spaced along a hanger rod extending through the modules. The engaging means are spaced apart by a distance selected according to the degree of compression desired in the modules.
    Type: Grant
    Filed: June 8, 1987
    Date of Patent: March 29, 1988
    Assignee: Schaefer Brothers Incorporated
    Inventor: Michael K. Robbins