Stock material or miscellaneous articles – Structurally defined web or sheet – Including fastener for attaching to external surface
Reexamination Certificate
2000-07-28
2002-09-03
Thomas, Alexander S. (Department: 1772)
Stock material or miscellaneous articles
Structurally defined web or sheet
Including fastener for attaching to external surface
C428S099000, C428S102000
Reexamination Certificate
active
06444287
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to insulating blankets and more specifically to insulation blankets for engine exhaust systems. The present invention is a high temperature insulation blanket for combustion engines. The blanket can be selectively manufactured to encompass any engine parts deemed prudent by the user. All edges of the insulative blanket have a high temperature abrasive resistant material fixedly attached thereto. The high temperature insulative blanket is comprised of a ceramic core having an interior engine engaging layer and an exterior atmospheric air layer. The interior layer is comprised of an inconel or monel mesh material that provides a spacing between the engine components and the ceramic fill and prevents any engine fluids from wicking into the ceramic fill. The exterior layer is comprised of a Teflon layer that is substantially impervious to petroleum based products and solvents. The exterior layer will extend the life of the insulative blanket.
The present invention provides three means of closure for the insulative blanket. The first comprises a plurality of oppositely opposed riveted studs fixedly positioned along the edge of the insulative blanket and being riveted through the exterior layer. One riveted edge has an L-shaped appendage extending away from the insulative blanket edge. The oppositely opposed rivets have a spring element fixedly positioned thereto having a loop located at the distal end. The aperture of the spring loop can be passed over the L-shaped appendage of the opposing rivet. The spring is of sufficient length as to cause the opposing edges of the insulative blanket to be brought into tensioned engagement. The purpose of the spring closure is to provide means for quick installation and/or removal of the insulative blanket.
The second means of closure is comprised of industrial grade hook and loop material fixedly attached to the edges of the insulative blanket. Each edge having the mating member of the hook and loop material. This method of closure also provides a quick and easy means for installing the insulative blanket.
The third method of closure involves hooks being provided on one edge of the insulative blanket and eyelets provided along the opposed edge of the insulative blanket wherethrough a wire-like thread can be laced and engaged around the hook elements.
2. Description of the Prior Art
There are other eye protection clearing device designed for clearing goggles or face shields. Typical of these is U.S. Pat. No. 5,139,839 issued to EK J. T. Lim on Aug. 18, 1992.
Another patent was issued to Donald A. Nawrocki et al. on Dec. 1, 1992 as U.S. Pat. No. 5,167,060. Yet another U.S. Pat. No. 5,811,168 was issued to Daniel Rasky on Sep. 22, 1998 and still yet another was issued on Aug. 5, 1997 to Wesley L. Holman as U.S. Pat. No. 5,654,060.
Another patent was issued to Mack A. Hounsel on Jun. 2, 1998 as U.S. Pat. No. 5,759,663. Yet another U.S. Pat. No. 5,080,949 was issued to Donald A. Nawrocki on Jan. 14, 1992 Another was issued to Robert A. Carlson on Mar. 25, 1986 as U.S. Pat. No. Des. 4,577,839 and still yet another was issued on Apr. 10, 1990 to Edmond K. Parenti et al. as U.S. Pat. No. 4,915,998.
U.S. Pat. No. 5,139,839
Inventor: EK J. T. Lim
Issued: Aug. 18, 1992
A thermal insulating blanket containing insulation material such as ceramic fibre, rock wool or fibreglass enclosed with a cloth, has a layer of woven metal mesh surrounding the insulation material.
U.S. Pat. No 5,167,060
Inventor: Donald A. Nawrocki
Issued: Dec. 1, 1992
A heat shield is made by stacking a wrapper member made from sheet metal, a flexible ceramic fiber insulation member, and an outer member made from sheet material, and then bending over flanges which extend from the wrapper member. The stacked elements are then bent into desired shape. To make a heat shield for spark plugs, a support member is also included in the stack and provides mounting legs for mounting the heat shield. To make a heat shield for a transmission unit, mounting hardware is connected to the stack with rivets.
U.S. Pat. No 5,811,168
Inventor: Danial Rasky
Issued: Sep. 22, 1998
An improved flexible blanket includes a nickel-based allow foil layer brazed to a nickel-based alloy fabric layer. The fabric layer is stitched to an underlying ceramic insulation layer.
U.S. Pat. No 5,654,060
Inventor: Wesley L. Holman
Issued: Aug. 5, 1997
An insulating blanket for a bulkhead in an engine nacelle comprises a fabric backing layer, a central insulating core, a ceramic precursor-impregnated hot-side fabric layer and as required, erosion-preventing wire mesh. The backing layer comprises a fiberglass fabric. The insulating core comprises a ceramic felt. The hot side layer comprises one or more layers of resins-impregnated fiberglass fabric. The blanket is procured to provide a predetermined geometric shape.
U.S. Pat. No 5,759,663
Inventor: Mack A. Hounsel
Issued: Jun. 2, 1998
A high temperature, abrasion resistant insulating module is described having a sinuously folded ceramic blanket with a lath covering three sides of the folded blanket. The lath has doubled back portions extending into the folds of the blanket on its hot face. To the lath front face of the folded blanket is applied a layer of thermally stable, abrasive resistant material which not only serves as an abrasion shield to the brittle fibrous material of the blanket, but only serves to stabilize the module and to reduce fiber dust.
U.S. Pat. No. Des. 5,080,949
Inventor: Donald A. Nawrocki
Issued: Jan. 14, 1992
A heat shield is made by stacking a wrapper member made of sheet metal, a flexible ceramic fiber insulation member, and an outer member made of sheet material, and then bending over flanges which extend from the wrapper member. The stacked elements are then bent into desired shape. To make a heat shield for spark plugs, a support member is also included in the stack and provides mounting legs for mounting the heat shield. To make a heat shield for a transmission unit, mounting hardware is connected to the stack with rivets.
U.S. Pat. No 4,577,839
Inventor: Robert A. Carlson
Issued: Mar. 25, 1986
A light weight insulator blanket capable of repetitive use of extended duration as a cover, gasket, or the like of 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 light weight, flexible fibrous metallic material such as high temperature stainless steel wool, monel metal wool, or 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.
While these insulating blankets may be suitable for the purposes for which they were designed, they would not be as suitable for the purposes of the present invention, as hereinafter described. It is thus desirable to provide an insulating blanket designed to meet the rigors of prime power and continues use application such as O.E.M, electrical power generation, marine and oil field needs. It is further desirable to provide an insulating blanket that will prevent personnel injuries, prevent fires and excessive heat in the engine compartment or engine room and will prevent heat from saturating the radiator and causing engine over heating.
SUMMARY OF THE PRESENT INVENTION
The present invention discloses a high temperature insulation blanket for an exhaust system of an internal combustion engine. The blanket can be selectively manufactured to encompass any engine parts deemed desirable by the user. All sides of the insulative blanket have a high temperature abrasive resistant outer shell material fixedly attached thereto. The high temperature insulative blanket is comprised of a ceramic core having an interior engine engaging layer and an exterior atmosp
Kroll Michael I.
Thomas Alexander S.
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