Abstract: Fire-resistant shroud (“Fire Shroud”) for a barrier surface-mountable electromagnetic device, including a synthetic vitreous fiber body having a cavity configured to the shape of a portion of the electromagnetic device. Barrier surface-mountable loudspeaker system, including a barrier surface-mountable loudspeaker having a back-can including a sound-producing element; and a synthetic vitreous fiber body having a cavity configured to the shape of a barrier surface-mountable loudspeaker back-can. Method of installing a barrier surface-mountable electromagnetic device in a barrier surface of an interior space.

Abstract: A sound-damping structure is provided for use as part of a sound-directing component of a loudspeaker. The structure includes a first structural layer, a second structural layer, and a core layer enclosed between the first and second structural layers. The first and second structural layers include a generally rigid material, and the core layer includes a sound-damping material. The first structural layer includes an outside surface facing an exterior of the sound-directing component. The second structural layer includes an inside surface having an interior of the sound-directing component through which sound energy is directed.

Abstract: The invention provides a loudspeaker system having a housing made of a plastic casing and a foam positioned against the interior walls of the casing through a reaction between the foam and the interior wall. The foam increases the stiffness of the walls as well as provides sound damping. Additionally, the foam may create a foam rib between a stud and the casing to support the stud and transfer the stiffness of the stud to a wall of the casing.

Abstract: This invention provides a baffle formed from a thermoset composite material such as Bulk Molding Compound (BMC), Thick Molding Compound (TMC), or Sheet Molding Compound (SMC). Due to the physical properties of BMCs, TMCs, and SMCs, the baffle may be molded to minimize the propagation of vibrational energy and resonant mode behavior while providing high strength and rigidity. The baffle may also be formed so transducer mounts, ports and wave-guides may be molded into the baffle shape.

Abstract: The invention provides a loudspeaker system having a housing made of a plastic casing and a foam positioned against the interior walls of the casing through a reaction between the foam and the interior wall. The foam increases the stiffness of the walls as well as provides sound damping. Additionally, the foam may create a foam rib between a stud and the casing to support the stud and transfer the stiffness of the stud to a wall of the casing.

Abstract: For loudspeaker components with flat and/or curved panel-like regions that require hard surfaces along with sound-damping properties to minimize sound feed-through and resonances, a three-layer laminate is formed from two surface layers of commercially available thermosetting molding compound, co-molded in a single molding operation with an embedded core of suitable sound damping material such as filled vinyl copolymer compound or filled silicon rubber compound. The core region is dimensioned to leave a peripheral margin in which the two layers of molding material become bonded together so as to fully encapsulate and seal the sound-damping core. Furthermore, the margin can be made to have any desired size, thickness or shape to also serve as a mounting, fastening or other function of the component.

Abstract: This invention provides a baffle formed from a thermoset composite material such as Bulk Molding Compound (BMC), Thick Molding Compound (TMC), or Sheet Molding Compound (SMC). Due to the physical properties of BMCs, TMCs, and SMCs, the baffle may be molded to minimize the propagation of vibrational energy and resonant mode behavior while providing high strength and rigidity. The baffle may also be formed so transducer mounts, ports and wave-guides may be molded into the baffle shape.

Abstract: The present invention provides a wood additive thermoset composite (WATC) to mold a three dimensional product, such as a speaker cabinet, which combines the favorable qualities of both wood and thermosetting resin/plastic. In particular, the WATC has at least about 50% wood by weight with the rest substantially being thermosetting resin material by weight.

Abstract: A microwaveable container is formed of a three part laminate structure including a middle layer of plastic impervious to liquid oils, water vapor, gas, and moisture, an inner layer of fibrous material joined to one side of the middle layer, and an outer fibrous layer joined to the other side of the middle layer. The seams are configured to enable the complete or essential prevention of leakage of oil, moisture, volatile flavoring agents, water vapor and oxygen through the container walls. Oils which are liquid at room temperature may be sealed and stored in the container without refrigeration to a temperature below the melting point of the oils.

Abstract: A food heating package for elongated products such as french fries and fish sticks which includes partitions formed from microwave energy absorbing material adapted to crisp, toast or brown the surfaces of the foods sticks. The partitions preferably enclose the food sticks on at least three sides and can be made by forming folds in a sheet of vapor-deposited semiconductive metallic coating applied to a plastic film, e.g. polyester, backing.

Abstract: A food heating package for elongated products such as french fries and fish sticks which includes partitions formed from microwave energy absorbing material adapted to crisp, toast or brown the surfaces of the foods sticks. The partitions preferably enclose the food sticks on at least three sides and can be made by forming folds in a sheet of vapor-deposited semiconductive metallic coating applied to a plastic film, e.g. polyester, backing.

Abstract: A coated sheet material is provided for wrapping, packaging or shipping food articles that are to be heated in a microwave oven. The sheet is formed from a paper or paperboard backing which is thermally and dimensionally stable when exposed to microwave energy. On at least one side is provided a smooth calendered surface or the sheet material is treated by processing as with a filler coating to fill the voids between the paper fibers and to thereby present a smooth surface. A microwave interactive layer is applied to the smoothed surface from a fluid or vapor state. The interactive coating can comprise carbon, a semiconductive metal coating or other microwave interactive material.

Abstract: A coating sheet material is provided for wrapping, packaging or shipping food articles that are to be heated in a microwave oven. The sheet is formed from a paper or paperboard backing which is thermally and dimensionally stable when exposed to microwave energy. On at least one surface is provided a smooth supercalendared surface or the sheet is treated by processing as with a filler coating to fill the voids between the paper fibers and to thereby present a smooth surface. A microwave interactive layer is applied to the smoothed surface from a fluid or vapor state. The interactive coating can comprise carbon, a semiconductive metal coating or other microwave interactive material.

Abstract: A food heating package for elongated products such as french fries and fish sticks which includes partitions formed from microwave energy absorbing material adapted to crisp, toast or brown the surfaces of the food sticks. The partitions preferably enclose the food sticks on at least three sides and can be made by forming folds in a sheet of vapor-deposited semiconductive metallic coating applied to a plastic film, e.g. polyester, backing.

Abstract: The invention provides a flexible packaging sheet including one or more supporting sheets and a base sheet to which is applied a microwave interactive material in the form of a coating or film. The microwave interactive material can comprise any of several elemental metals or oxides such as iron oxide or tin oxide or a thin semiconductive metallic film applied by vacuum electrodeposition. The supporting sheets comprise non-thermoplastic fibrous sheet material such as paper. The base sheet can comprise a plastic resinous material such as polyester.

Abstract: A flexible sheet structure is described which comprises a base sheet having a microwave coupling layer, e.g. electrodeposited aluminum as an island covering a selected area of the sheet. The uncoated portions will not be heated and will not be damaged by microwave energy. The selectively located microwave coupling covered area transfers absorbed heat to a product by thermal conduction. In one form of the invention a flexible fibrous backing sheet such as paper is bonded to the base sheet to provide dimensional stability and prevent warping, shriveling, melting or other damage during microwave heating.

Abstract: A microwave reflective energy concentrating stand is provided which consists of a horizontally disposed article supporting surface and a microwave reflector such as a sheet of metal foil spaced about 1/4 of a wave length of the supplied microwave energy below the supporting surface. The stand can be formed from flexible packaging materials such as paperboard panels. The reflector is isolated electrically from the paperboard.

Abstract: A microwave reflective energy concentrating spacer is provided which consists of a horizontally disposed article supporting surface and a microwave reflector such as a sheet of metal foil spaced about 1/4 of a wave length of the supplied microwave energy below the supporting surface. The spacer can be formed from flexible packaging materials such as paperboard panels to which the aluminum foil is bonded to form the reflective surface.