Document Bv53pdx7E27EbL0LXwNyynDXm

FILE NAME: Foster Wheeler (FW) DATE: 1949 Feb 8 DOC#: FW004 DOCUMENT DESCRIPTION: Patent - Insulating Blanket Patented Feb. 8, 1949 2,460,848 UNITED STATES PATENT OFFICE 2,460,848 INSULATING BLANKET Richard H. Rover, R oadie, N. J., assignor to Foo ter W heeler Corporation, Near York, N. Y., a corporation o f New York Application July 14,1944, Serial No. 544,95? ! 4 Claims. This Invention.relates to insulating lining and more particularly to insulating blankets for use in lining walls, ducts, furnace walls, flues, and the like. The invention provides an insulating blanket of high insulating value and capable of bearing a substantial load without becoming compressed or distorted. Application of a covering, to the blanket of the present invention may be made without affecting the insulating qualities thereof and without distorting or compressing the blanket. The invention will be understood from the fol lowing description when considered in connec tion w ith the accompanying drawing forming a part thereof and in which: .Fig. 1 is a fragm entary perspective view of an insulating blanket embodying th e Invention, parts thereof being broken away; Mg. 2 is a transverse sectional view taken on the line 2--2 of Mg. l; Mg. 3 is a longitudinal sectional view taken on the line 8--3 of Mg. 1, and Mg. 4 is a perspective view of a form of spacer block other th an th a t used in the embodiment of the invention shown in Mgs. 1 to 3. Iiifa. characters of reference refer to the same parts throughout the several views. Referring to th e drawing, the Invention, as shown, comprises a layer of compressible Insulat ing m aterial 10 such as asbestos, rock wool, min eral wool, or the like. The layer of m aterial 16 is positioned between retaining sheets it and 12 which sheets, as shown, comprise expanded metal screens. The sheets II and 12 may be of other flexible m aterial such as wire, metal, or cloth which m aterial preferably extends over the ends and side edges of the layer of m aterial 10 as well as over the top and bottom surfaces. Spacing blocks IS are positioned in the space between the sheets 11 and 12 in which the layer of insulating m aterial 10 is disposed. The blocks I t are of a solid non-conducting insulating ma terial and, as shown, are substantially cubically shaped and of a thickness substantially equal to the thickness of the layer of Insulating m aterial 10. Surface 14 of one of the sides of the blocks, as shown, is adjacent the inner side of the sheet 11, while the surface 16 of the side of the block opposite the surface 14 is adjacent the inner side (CL 154--44) 2 of the present Invention is subjected to a weight bearing on the screen sheets il and 12. Other than cubically shaped blocks may be used, It ' merely being required th a t the blocks used be 0 so shaped as to have two surfaces spaced apart a predetermined distance, similar to surfaces 14 and II of the blocks IS. The blocks 13 are dis posed in spaced rows, as shown, and are spaced from one another in said rows. The number, of io blocks used and the arrangem ent thereof should ,, bis such as to lurid the sheets 11 and 12 a prede termined distance apart and prevent the layer of insulating, m aterial 10 from being compressed. Insulating m aterial 13, which is packed closely 15 around th e blocks 13, holds said blocks in position but the blocks, to prevent movement thereof, may be secured to the screen sheets 11 and 12. Tie wires 18 extend through the layer of in sulating m aterial 10 and are threaded through 20 tlje sheets 11 and 12 to firmly secure said sheets apd layer of insulating material in relationship to each other and the blocks 13. The spacing block i t ' illustrated in Bigs. 1 and 4 of the drawing is somewhat similar to the 25 blocks IS shown in Figs. 1 to 3. The block 13' bps a passage IT therethrough to receive a bolt, noil or other fastening means IS so th a t the in sulating blanket of the present Invention may be secured to a wall, a duct, flue or other struc30 tu ie to which it is to be fastened and thereby set in relationship to said structure. I t will be un derstood th a t the blanket may be secured by means other than the apertured block adapted to receive a bolt, nail or other fastening means 18. 30 The structure of the present invention pro vides a flexible insulating blanket having high insulating properties which may be applied to walls of various shapes and contours and which may be subjected to a load, such as the weight 40 of a refractory m aterial applied to the regaining sheets of tile blanket, without becoming com pressed or distorted. Since the spacer blocks are of a solid non-conductive or Insulating ma terial. the Insulating qualities of th e blanket are 48 not decreased by said blocks. I t will be understood th a t changes may be made in the form, location and relative arrangem ent of the several parts of the Insulating blanket dis closed without departing from the principles of 50 t h d l n W I m -- - *-- ... - 2,480,848 3 tween said screens, means extending between the 4 one of the screens and the surface of the side screens and through the insulation for securing of the blocks opposite said one side engaging the the insulation and the screens together to form a blanket, and a plurality of blocks of solid in other screen thereby' lim iting movement of the screens toward one another and insulating said sulating m aterial, said blocks being arranged be- 5 screens from one another, a t least some of said tween the screens in spaced rows and spaced from, blocks having a passage therethrough adapted one another in said rows, the blocks having a substantially flat surface a t opposite sides there to receive fastening means for mounting the lin ing in position. of, one of said surfaces engaging one of the 4. An insulating lining comprising spaced me screens and the opposite of said surfaces engag- 10 tallic screen sheets, a layer of fibrous insulation ing the other screen thereby limiting movement between the sheets, and a plurality of blocks of of the screens toward one another and insulating said screens from one another. 2. An insulating lining comprising spaced me solid insulating m aterial between the sheets ar ranged in spaced rows and spaced from one an other in said rows, said Mocks having opposite tallic screens, a layer of fibrous Insulation be- 13 substantially flat surfaces adapted to engage the tween said screens, means extending between the surface of said screens adjacent the insulation screens and through the insulation for securing thereby limiting movement of said screen sheets the insulation and the screens together to form a blanket, and a plurality of cublcally-shaped toward one another and insulating said screens from one another. , blocks of solid insulating m aterial, said Mocks 20 RICHARD H. ROVER. being arranged between the screens in spaced rows and spaced from one another in said rows, REFERENCES CITED the surface of one of the sides of the blocks en The following references are of record in the gsiadgeinogf tohneebolof ctkhse ospcpreoesnitse asnaiddtohneessuidrfeaceengoafgtihneg 25 file of this patent: the other screen thereby lim iting movement of UNITED STATES PATENTS the screens toward one another and insulating Number . said screens from one another. 720,929 3. An insulating lining comprising spaced me 1,387,391 tallic screens, a layer of fibrous insulation be- 30 1,703,558 tween said screens, means extending between the 1,822,987 screens and through the insulation for securing 1,972,592 the insulation and the screens together to form 2,159,300 a blanket, and a plurality of cubically-shaped _ 2,184,482 blocks of solid insulating material, said blocks be- 33 2,282,293 ing arranged between the screens in spaced rows 2,329,366 and spaced from one another in said rows, the 2,376,653 surface of one of the sides of the blocks engaging Name D ate Johnson _ ____ __ Feb. 17, 1903 H all___________ -- Aug. 9, 1921 S u tte r________ -- Feb. 26, 1929 Cooper ______ - Sept. 15, 1931 Jacobson______ __Sept. 4, 1934 T ash jian ______ . . . May 23, 1939 Austin e t a l .___ __Dec. 26, 1939 C hristenson__ ------May 5, 1942 Weill et al______ -- Sept. 14, 1943 Boyer ----------. . . May 22, 1945 Feb. 8, 1949. R. H. ROVER INSULATING BLANKET Filed July 14, 1944 2,460,848