Stock material or miscellaneous articles – Sheet including cover or casing
Patent
1984-01-20
1986-03-04
Bell, James J.
Stock material or miscellaneous articles
Sheet including cover or casing
181291, 181294, 428 76, 428131, 428137, 428138, 428218, 428246, 428247, 428251, 428192, 428193, 428457, B32B 104
Patent
active
045740992
ABSTRACT:
This invention relates to the field of sound control equipment, and particularly to an acoustical panel for absorbing sound generated by equipment in a sterile environment such as a clean room, kitchen, food processing plant or drug manufacturing facility. The acoustical panel is comprised of an inner core made of loosely woven fibrous material, at least one middle layer on at least one side of the inner core which enhances durability without significantly reducing the sound absorption characteristics of the inner core; edge support means; and an outer layer fabricated of a durable plastic material capable of being heat shrunk.
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Bell James J.
Haugen Orrin M.
Nikolai Thomas J.
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