Abstract: A batt of acoustical/thermal insulation for use in insulating appliances, compressors, machines and the like is disclosed. The batt comprises a fiberglass blanket and a release liner assembly. The liner assembly features a carrier sheet for supporting layers or coatings of adhesive on opposite broad surfaces thereof. One adhesive coated surface of the carrier sheet is releasably adhesively attached to a conventional release liner which is coated with an adhesive release agent. The other adhesively coated surface is joined to exposed fibers of a surface portion of the fiberglass blanket while the adhesive coating is in a heated, uncured, liquid state so as to immerse surface fibbers of the blanket in the adhesive. The carrier sheet adds stability to the resulting laminate structure and prevents surface fibers from being torn from the blanket when the release liner is removed from the carrier at the time of placement of the batt in service. A method for forming the batt is also disclosed.

Abstract: A slip over, sound muffling cover for a machine such as a compressor is disclosed which includes an outer layer of relatively rigid, bendable, resilient material capable of being distorted and returned to its desired shape, and an inner layer of flexible, sound absorbent material. The outer layer includes a cap having a broad surface and a pair of open sided trays attached on corresponding ends thereof to the broad surface so that, under normal circumstances, the open sides of the trays face one another. Each of the trays contains a pair of elongated flanges on opposite side edges thereof, pairs of such flanges which oppose one another on the same side of the trays are closable against one another to enclose a machine in the sound absorbent material.