Clyde B Betz

US Patent:

44425856, Apr 17, 1984

Filed:

Mar 31, 1982

Appl. No.:

6/363871

Inventors:

Fred N. McGehee - Harvey LA
Billy J. Peck - Harvey LA
Clyde B. Betz - Harvey LA
Calvin R. Morgan - Harvey LA

International Classification:

B23P 1100

US Classification:

29432

Abstract:

An improved method of construction for thermal and acoustic insulation blankets is provided wherein a ceramic fiber thermal insulation core is cut along pattern lines and a acoustically insulating thin sheet of lead is molded in conformance with the shape of the ceramic fiber core. A thin, stainless steel foil/fiberglass cloth laminate is placed along the inner most surface of the insulation core so that the laminate serves as a barrier between the insulation core and the object being insulated. A silicone-rubber coated fiberglass cloth is wrapped around the insulation core and accompanying layers of insulation, and the fiberglass cloth is stitched with stainless steel staples. The blanket is then provided with an outer jacket comprised of a flexible knitted, stainless steel wire mesh to form a stocking containing the insulation blanket. The ends of the stocking are stitched with stainless steel staples. The ends of an insulation blanket are mated along a single seam to completely insulate an entire circumferential surface of a pipe.