Patent ID: 7467687

Claim:
An enclosure for apparatus that, during operation, generates heat energy, sound energy, or heat and sound energy, comprising at least one wall defining at least a portion of an enclosure hollow interior, the wall comprising the combination of: an inner panel comprising, in sequence outwardly from the enclosure hollow interior: an inner panel inner sheet at the hollow interior and including a plurality of perforations therethrough; an inner panel sound absorption member comprising non-metallic sound absorption material at the inner panel inner sheet; an inner panel outer sheet comprising non-metallic composite material at the inner panel sound absorption member; and, at least one panel stiffening member between the inner panel inner sheet and the inner panel outer sheet; an outer panel comprising in sequence inwardly from outside of the enclosure: an outer panel sandwich member comprising non-metallic composite material including spaced-apart sandwich member first and second walls and a plurality of spaced-apart transverse walls between the sandwich member first and second walls defining sandwich member hollow chambers; and, an outer panel heat and fire resistant and sound absorption member comprising non-metallic heat and fire resistant material and sound absorption material at the outer panel sandwich member second wall; a support frame secured between the inner and outer panels to support and hold the inner and outer panels in spaced apart relationship to define a space between the inner and outer panels; and, a plurality of vibrator isolators, at least one between and in contact with the support frame and each of the inner panel and outer panel.