Refractory insulator blanket and cover
AssigneeReptech, Inc.
InventorsRobert A. Carlson, Nicholas H. Smith
Life of this patent
Estimating the term…
Abstract
A light weight insulator blanket capable of repetitive use of extended duration as a cover, gasket, or the like for a vessel or conduit used in transporting, storing or processing molten or non-molten metal, particularly iron or steel, and in similar applications, including a principal insulator layer of a light weight, flexible, fibrous ceramic material having one or both surfaces covered by a thick protective layer of a light weight, flexible fibrous metallic material such as high-temperature stainless steel wool, monel metal wool, or a multi-layer knitted or woven material; the layers are securely bound to each other by metallic fastening means such as high temperature stainless steel wire stitching, staples, or rivets.
Claims48
A light weight, flexible, composite insulator blanket capable of extended, repetitive use as a cover or insulator wrapping or gasket for a very high temperature heat source comprising a vessel or conduit employed in transporting, processing, or storing molten or near-molten metal, at temperatures in excess of 1600.degree. F., the insulator blanket comprising:
- a principal insulator layer of a light weight, flexible, fibrous ceramic material, subject to deterioration through devitrification and abrasion when subjected to prolonged exposure to a very high temperature heat source;
- a protective layer of light weight, flexible fibrous metallic material, covering one surface of the principal insulator layer to a depth many times greater than the thickness of the metallic fibers;
- and
- fastening means securing the protective layer to the principal insulator layer at a multiplicity of locations throughout the surface area of the insulator blanket.
A light weight, flexible, composite insulator blanket capable of extended, repetitive use as a cover or wrapping or gasket for a very high temperature heat source, comprising a vessel or conduit employed in transporting, processing, or storing molten or near-molten metal, at temperatures in excess of 1600.degree. F., the insulator blanket comprising:
- a principal insulator layer of a light weight, flexible, fibrous ceramic material, subject to deterioration through devitrification and abrasion when subjected to prolonged exposure to a very high temperature heat source;
- two protective layers of light weight, flexible fibrous metallic material, each covering one surface of the principal insulator layer to a depth many times greater than the thickness of the metallic fibers;
- and
- fastening means securing the protective layers to the principal insulator layer at a multiplicity of locations throughout the surface area of the insulator blanket.
A light weight insulator cover capable of repetitive use of extended duration on a very high temperature heat source comprising a vessel or conduit employed in transporting, processing, or storing molten or near-molten metal, at temperatures in excess of 1600.degree. F., comprising:
- an open cover frame of metal tubing or rod;
- an insulator blanket;
- and suspension means suspending the insulator blanket from the cover frame;
- the insulator blanket comprising:
- a principal insulator layer of a light weight, flexible, fibrous ceramic material;
- a protective layer of light weight, flexible fibrous metallic material, covering one surface of the insulator layer to a depth many times the thickness of the metallic fibers;
- and
- fastening means securing the protective layer to the insulator layer;
- the insulator blanket being oriented to have its protective layer facing toward the heat source.
A light weight insulator cover capable of repetitive use of extended duration on a very high temperature heat source comprising a vessel or conduit employed in transporting, processing, or storing molten or near-molten metal, at temperatures in excess of 1600.degree. F., comprising;
- an open cover frame of metal tubing or rod;
- an insulator blanket;
- and suspension means suspending the insulator blanket from the cover frame;
- the insulator blanket comprising:
- a principal insulator layer of a light weight, flexible, fibrous ceramic material;
- two protective layers of light weight, flexible fibrous metallic material each covering one surface of the insulator layer to a depth many times the thickness of the metallic fibers;
- and
- fastening means securing the protective layers to the insulator layer.
Dependencies are inferred from the claim text.