US1924472A - Method of and means for manufacturing sound absorbing material - Google Patents

Method of and means for manufacturing sound absorbing material Download PDF

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US1924472A
US1924472A US498895A US49889530A US1924472A US 1924472 A US1924472 A US 1924472A US 498895 A US498895 A US 498895A US 49889530 A US49889530 A US 49889530A US 1924472 A US1924472 A US 1924472A
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adhesive
sound absorbing
rolls
lines
applying
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US498895A
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Thomson George Miller
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
    • E04C2/36—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
    • E04C2/365—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels by honeycomb structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D3/00—Making articles of cellular structure, e.g. insulating board
    • B31D3/02—Making articles of cellular structure, e.g. insulating board honeycombed structures, i.e. the cells having an essentially hexagonal section
    • B31D3/0223—Making honeycomb cores, e.g. by piling a plurality of web sections or sheets
    • B31D3/0246—Plane webs having essentially longitudinal adhesive strips being folded transversely into stacks or being cut transversely into sections which are piled, e.g. zigzag-folding the webs preceding the cutting
    • B31D3/0261—Plane webs having essentially longitudinal adhesive strips being folded transversely into stacks or being cut transversely into sections which are piled, e.g. zigzag-folding the webs preceding the cutting by applying longitudinal adhesive strips to the web and zig-zag folding the strips transversely
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1003—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by separating laminae between spaced secured areas [e.g., honeycomb expanding]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1015—Folding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1016—Transverse corrugating
    • Y10T156/102—Transverse corrugating with deformation or cutting of corrugated lamina
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing

Definitions

  • the present invention provides an advantageous method of manufacturing such a product.
  • the sound absorbing material is produced by applying adheof exiblematerial, such as asbestos paper, and then producing a stack of such strips and allowing the adhesive to dry.
  • adheof exiblematerial such as asbestos paper
  • the resulting product 0 can be readily expanded to any desired degree to produce any predetermined width of cell vopening, by bending the material to a suitable curvature, applying adhesive to the concave face oi'l the curved material, then applying a backing to the curved face,'and then flattening the material.
  • Figure 1 is a diagrammatic side elevation of part of the improved apparatus
  • Figure 2 is a plan view on the line 2-2 of Figure 1,
  • Figure 3 is a side elevation of another part of the apparatus on a larger scale
  • Figures 4 and 5 are side elevations illustrating subsequent steps in the improved method of manufacturing sound absorbing material.
  • Figures 6 and 7 are plan views of the sound absorbing material produced by the method illustrated in the other figures, the material being shown contracted in Figure 6 and expanded in Figure 7, and l y Figure 8 is a diagrammatic perspective view ofthe adhesive-applying means shown in Figures 1 and 2.
  • a web of suitable flexible material advances from a supply roll-1a and passes successively over a guide roll 2, an adhesive-applying roll 3, guide rolls 4, guide roll 5, an adhesive-applying roll 6, guide roll 7, drive rolls 8 and betweencrimping rolls 9.
  • the roll 3 is arranged to apply parallel lines or bands of adhesive 10 to the surface 11 of the web of paper 1, while roll 6 isarranged to apply parallel lines of adhesive 12 to the surface 13 of the paper 1, the adhesive lines l2 being dis' posed midway between the lines 10 as shown in Figure 2.
  • This is preferably accomplished by providing distributing rolls 3a and 6a beneath the rolls 3 and 6 respectively. 'Ihe rolls 3a and 6a dip into adhesive containers 3b and 6b and 35 the pairs of rolls 3. 3a and 6,. 6a are rotated by a suitable means, not shown, in the direction of the arrows in Figure 1.
  • the rolls 3 and 6 are provided with Scrapers 3c and 6c formed with notches 14 in their scraping edges, as indicated 70 in Figure 8, the spacing and width of the notches being determined according to the desired spac-J ing and width of the lines of adhesive 10 and 12.
  • the liquid adhesive is carried up by rolls 3a and 6a and is transferred to the rolls 3 and 8, the thickness of the adhesive films transferred to the rolls 3 and 6 being adjustable by varying thev distance between the rolls.
  • the axles of the rolls 3 and-6 may be journalled in side frames, such as 17.
  • the spacing of the rolls 3. and 3a, and 6 and 6a may be adjusted to obtain the desired thickness of adhesive by means of screws 18.
  • the crimping rolls 9 fold or bend the web l into a zigzag formation, as indicated at A, and at this stage may be supported by any suitable means such as an endless belt 20.
  • the crimped paper A is then manipulated to close up the folds thereof into the form indi-1 cated at B, in which form the paper will be held as soon as the adhesive lines 10 and 12 dry.
  • This operation may be performed by the means indicated in Figure 3.
  • Arcuate ngers21 are caused to oscillate about pivots 22 by means of rotating .cams 23, against which the fingers are held in Figure 4.'
  • the material B is fed between two suitably spaced grinding wheels 26, which grind off the upper and lower surfaces of the material B and thus produce a material indicated at C, which consists of a stack of rectangular strips of paper connected to one another at staggered points on opposite sides of each strip.
  • a portion of the material C is shown in Figure 6 in which the lines of connection on one side of each strip are shown at 10 and on the opposite side of each Vstrip at12.
  • the material C is next expanded to form the material indicated at D in Figure '1, the degree of expansion being determined in accordance with the characteristics of' the sound waves to be absorbed, as referred to more particularly in applicants copending. application No. 498,896.
  • the expansion is preferably effected by the method illustrated in Figure 5.
  • the contracted material C is placed on a cylindrical member 2'1 with the paper strips extending parallel to the axis of the cylinder, so that the strips will tend to assume a radial position with respect to the axis of the cylinder.
  • the outer face ofthe material C is thus caused to assume the expanded condition illustrated (to an exaggerated extent) in Figure 7.
  • Adhesive is then applied to the outer edges forming the curved outer face of the material C and a backing of flexible but inextensible ma ferial 28, such as paper, is applied.
  • the backing 28 need not extend entirely over the face of the material, but may consist of, say, three strips of paper, one along each edge of the material and another at the middle thereof.
  • the material is removed from the cylinder 27 and flattened and the front face of the material then automatically assumes the same expanded condition as the back face.
  • a suitable diameter of cylinder 27, in relationA to the thickness of the material C any desired degree of expansion can be readily effected,and permanently xed by applyingthe backing 28.
  • a method of making sound absorbing material which comprises applying adhesive atstaggered spaced points on opposite sides of flexible material, producing a stack of rectangular strips of the exible material with the adhesive thus applied thereto, allowing the adhesive to dry, then expanding the resulting material to a definite predetermined extent,.and securing said material in said definite expanded condition.
  • a method of making sound absorbing material which comprises applying adhesive at staggered spaced pointswon opposite sides of vflexible material, crimping said material transversely, closing the folds of said crimped material upon one another, removing the outer surfaces ofsaid closed, crimped material, allowing the adhesive to dry, then expanding the resulting material to a definite predetermined extent, and applying an inextensible backing to one side of the expanded material.
  • a method of making sound absorbing materiaL which comprises applying adhesive at staggered spaced points on opposite sides of flexible material, producing a stack of rectangular strips of the flexible material with the adhesive thus applied thereto, allowing the adhesive to dry, then expanding the resulting material by bending said resulting material over a cylindrical surface of predetermined radius, applying a backing of iiexible inextensible material to the outer face of the bent material, and then fiattening the backed material.
  • a method of making sound absorbing material which comprises continuously advancinga web of flexible sheet material, applying spaced, parallel lines of liquid adhesive to one surface of said web, applying similar spaced parallel lines of liquid adhesive to the other surface of said web in staggered relation to the first mentioned lines of adhesive, crimping the webv laterally into a zigzag formation, closing the folds of said allel lines of liquid adhesive to opposite sides of a web of flexible material, the adhesive lines on one side being staggered with respect to those on the other side, crimping the iiexible material, closing the folds of the crimped material, allowing the adhesive lines to dry, grinding off thev outer faces of the closed crimped material, ex panding the resulting product to a definite, predetermined extent, and securing said material in said definite expanded condition.
  • Apparatus for making sound absorbing material comprising means for applying staggered -spaced lines of adhesive to the opposite sides of flexible sheet material, means for then forming a stack of strips of the flexible material, means for expanding the resulting material to a definite, predetermined extent and means for securing said material in said definite expanded condition,
  • Apparatus for making sound absorbing matex-iai comprising means for continuously applying staggered spaced lines of adhesive to the opposite sides of a web of iiexible sheet material, means for continuously advancing said web, means for crimping said web laterally, means for closing the folds of said crimped material on to one another, means for maintaining the folds of condition.

Description

G. M. THOMSON METHOD 0F AND MEANS FOR 'MANUFACTURING SOUND ABsoRBING MATERIAL Aug. 29, 1933.
Filed Nov. 28, 1930 2 Sheets-Sheet 1 I I I l l l Il INVENTOQI GEORGE M. THOMSON ATTO RNEYS.
Patented Aug. 29, 1933 UNITED STATES PAT vENT ovl-"Fica IVIETHOD 0F AND' MEANS FOR RIANUFAC- TURING SOUND ABSORBTNG MATERIAL George Millerv Thomson, Caledonia, Ontario Canada Application November 2s, 193e serial No. 498,895
Claims; (Cl. 154-28) 10 having a multiplicity of narrow wedge-shaped sive to staggered spaced points on opposite sides.
cells, and the present invention provides an advantageous method of manufacturing such a product.
'According to the present invention the sound absorbing material is produced by applying adheof exiblematerial, such as asbestos paper, and then producing a stack of such strips and allowing the adhesive to dry. The resulting product 0 can be readily expanded to any desired degree to produce any predetermined width of cell vopening, by bending the material to a suitable curvature, applying adhesive to the concave face oi'l the curved material, then applying a backing to the curved face,'and then flattening the material.
A convenient method of continuously manufacturing the sound absorbing material will now be described.
, Referring now to-the accompanying drawings, whichA illustrate, by way of example, one convenient embodiment of the invention,
Figure 1 is a diagrammatic side elevation of part of the improved apparatus,
Figure 2 is a plan view on the line 2-2 of Figure 1,
Figure 3 is a side elevation of another part of the apparatus on a larger scale,
' Figures 4 and 5 are side elevations illustrating subsequent steps in the improved method of manufacturing sound absorbing material.
Figures 6 and 7 are plan views of the sound absorbing material produced by the method illustrated in the other figures, the material being shown contracted in Figure 6 and expanded in Figure 7, and l y Figure 8 is a diagrammatic perspective view ofthe adhesive-applying means shown in Figures 1 and 2.
According to the ilustrated form of the invention, a web of suitable flexible material 1, preferablvl asbestos paper, advances from a supply roll-1a and passes successively over a guide roll 2, an adhesive-applying roll 3, guide rolls 4, guide roll 5, an adhesive-applying roll 6, guide roll 7, drive rolls 8 and betweencrimping rolls 9.
The roll 3 is arranged to apply parallel lines or bands of adhesive 10 to the surface 11 of the web of paper 1, while roll 6 isarranged to apply parallel lines of adhesive 12 to the surface 13 of the paper 1, the adhesive lines l2 being dis' posed midway between the lines 10 as shown in Figure 2. This is preferably accomplished by providing distributing rolls 3a and 6a beneath the rolls 3 and 6 respectively. 'Ihe rolls 3a and 6a dip into adhesive containers 3b and 6b and 35 the pairs of rolls 3. 3a and 6,. 6a are rotated by a suitable means, not shown, in the direction of the arrows in Figure 1. The rolls 3 and 6 are provided with Scrapers 3c and 6c formed with notches 14 in their scraping edges, as indicated 70 in Figure 8, the spacing and width of the notches being determined according to the desired spac-J ing and width of the lines of adhesive 10 and 12. The liquid adhesive is carried up by rolls 3a and 6a and is transferred to the rolls 3 and 8, the thickness of the adhesive films transferred to the rolls 3 and 6 being adjustable by varying thev distance between the rolls. For example, the axles of the rolls 3 and-6 may be journalled in side frames, such as 17. The spacing of the rolls 3. and 3a, and 6 and 6a, may be adjusted to obtain the desired thickness of adhesive by means of screws 18.
block 15, supported upon springs 16 in slots in so The adhesive which passes through the slots 14 of. scrapers 3c and 6c is applied to the surfaces 1l and 13, respectively, of the paper web 1, and the guide rolls 5 and 7, the drive rolls 8 and crimping rolls 9 are formed with annular grooves 90- 19 so as to avoid disturbance of the adhesivelines 10 and 12.
The crimping rolls 9 fold or bend the web l into a zigzag formation, as indicated at A, and at this stage may be supported by any suitable means such as an endless belt 20.
The crimped paper A is then manipulated to close up the folds thereof into the form indi-1 cated at B, in which form the paper will be held as soon as the adhesive lines 10 and 12 dry. This operation may be performed by the means indicated in Figure 3. Arcuate ngers21 are caused to oscillate about pivots 22 by means of rotating .cams 23, against which the fingers are held in Figure 4.' The material B is fed between two suitably spaced grinding wheels 26, which grind off the upper and lower surfaces of the material B and thus produce a material indicated at C, which consists of a stack of rectangular strips of paper connected to one another at staggered points on opposite sides of each strip. A portion of the material C is shown in Figure 6 in which the lines of connection on one side of each strip are shown at 10 and on the opposite side of each Vstrip at12.
The material C is next expanded to form the material indicated at D in Figure '1, the degree of expansion being determined in accordance with the characteristics of' the sound waves to be absorbed, as referred to more particularly in applicants copending. application No. 498,896.
u The expansion is preferably effected by the method illustrated in Figure 5. The contracted material C is placed on a cylindrical member 2'1 with the paper strips extending parallel to the axis of the cylinder, so that the strips will tend to assume a radial position with respect to the axis of the cylinder. The outer face ofthe material C is thus caused to assume the expanded condition illustrated (to an exaggerated extent) in Figure 7. Adhesive is then applied to the outer edges forming the curved outer face of the material C and a backing of flexible but inextensible ma ferial 28, such as paper, is applied. The backing 28 need not extend entirely over the face of the material, but may consist of, say, three strips of paper, one along each edge of the material and another at the middle thereof. As soon as the adhesive has dried the material is removed from the cylinder 27 and flattened and the front face of the material then automatically assumes the same expanded condition as the back face. Thus, by selecting a suitable diameter of cylinder 27, in relationA to the thickness of the material C, any desired degree of expansion can be readily effected,and permanently xed by applyingthe backing 28.
Many modifications within the scope of the appended claims may be made without departing from the invention.
What I claim is: l
1. A method of making sound absorbing material which comprises applying adhesive atstaggered spaced points on opposite sides of flexible material, producing a stack of rectangular strips of the exible material with the adhesive thus applied thereto, allowing the adhesive to dry, then expanding the resulting material to a definite predetermined extent,.and securing said material in said definite expanded condition.
2. A method of making sound absorbing material which comprises applying adhesive at staggered spaced pointswon opposite sides of vflexible material, crimping said material transversely, closing the folds of said crimped material upon one another, removing the outer surfaces ofsaid closed, crimped material, allowing the adhesive to dry, then expanding the resulting material to a definite predetermined extent, and applying an inextensible backing to one side of the expanded material.
3. A method of making sound absorbing materiaLwhich comprises applying adhesive at staggered spaced points on opposite sides of flexible material, producing a stack of rectangular strips of the flexible material with the adhesive thus applied thereto, allowing the adhesive to dry, then expanding the resulting material by bending said resulting material over a cylindrical surface of predetermined radius, applying a backing of iiexible inextensible material to the outer face of the bent material, and then fiattening the backed material.
4. A method of making sound absorbing material which comprises continuously advancinga web of flexible sheet material, applying spaced, parallel lines of liquid adhesive to one surface of said web, applying similar spaced parallel lines of liquid adhesive to the other surface of said web in staggered relation to the first mentioned lines of adhesive, crimping the webv laterally into a zigzag formation, closing the folds of said allel lines of liquid adhesive to opposite sides of a web of flexible material, the adhesive lines on one side being staggered with respect to those on the other side, crimping the iiexible material, closing the folds of the crimped material, allowing the adhesive lines to dry, grinding off thev outer faces of the closed crimped material, ex panding the resulting product to a definite, predetermined extent, and securing said material in said definite expanded condition.
'6. A method as claimed in claim 5, wherein the closed, crimped material is then expanded to form a multiplicity of double-wedge-shaped cells by bending `the closed crimped material to a curvature of predetermined radius, applying a flexib1e.inextensible backing to the convex face of thematerial and then flattening the backed material to cause the previously concave face to be expanded to the same extent as the previously convex face.
'7. A method as claimed in claim 5, wherein the adhesive is applied b y supplying liquid adhesive to a roll engaged by the exible material, scraping from the roll all except spaced lines of adllesive, and rotating the roll to move said lines of adhesive' continuously into contact with said ilexible material.
. 8. A method as claimed in claim 5, wherein thev cept spaced lines of adhesive, and adjusting the thickness of then transferred film of adhesive by moving the distributing roll towards or 'away from the supply roll.
9. Apparatus for making sound absorbing material comprising means for applying staggered -spaced lines of adhesive to the opposite sides of flexible sheet material, means for then forming a stack of strips of the flexible material, means for expanding the resulting material to a definite, predetermined extent and means for securing said material in said definite expanded condition,
10. Apparatus for making sound absorbing matex-iai comprising means for continuously applying staggered spaced lines of adhesive to the opposite sides of a web of iiexible sheet material, means for continuously advancing said web, means for crimping said web laterally, means for closing the folds of said crimped material on to one another, means for maintaining the folds of condition.
GEORGE MILLER THOMSON.
lac
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Cited By (49)

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US2513777A (en) * 1947-12-09 1950-07-04 Chrysler Corp Apparatus for sinuous contoured material
US2537026A (en) * 1948-01-08 1951-01-09 Delwin A Brugger Device for forming flexible packing and cushioning elements
US2553054A (en) * 1948-01-02 1951-05-15 Lincoln Machine and method for producing a continuous honeycomb structure
US2581421A (en) * 1948-04-27 1952-01-08 Douglas Aircraft Co Inc Method and apparatus for making structural elements
US2608502A (en) * 1947-02-15 1952-08-26 Glenn L Martin Co Honeycomb structure and method of making same
US2610934A (en) * 1948-11-22 1952-09-16 California Refinforced Plastic Method of and apparatus for making honeycomb material
US2616482A (en) * 1948-07-31 1952-11-04 James F Barnes Integration of multiply web pads
US2619444A (en) * 1947-02-06 1952-11-25 Dufay Ltd Method of producing structural elements from web material
US2622999A (en) * 1947-08-02 1952-12-23 Roddis Plywood Corp Method for making honeycomb core doors
US2636540A (en) * 1949-08-06 1953-04-28 John D Lincoln Honeycomb core fabricating machine
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US2654686A (en) * 1950-05-11 1953-10-06 Northrop Aircraft Inc Stiffened honeycomb core
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US2711382A (en) * 1951-02-08 1955-06-21 Gen Electric Method of forming and applying metal heat exchange fins
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US7582270B2 (en) 2002-10-28 2009-09-01 Geo2 Technologies, Inc. Multi-functional substantially fibrous mullite filtration substrates and devices
US7682577B2 (en) 2005-11-07 2010-03-23 Geo2 Technologies, Inc. Catalytic exhaust device for simplified installation or replacement
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US2619444A (en) * 1947-02-06 1952-11-25 Dufay Ltd Method of producing structural elements from web material
US2608502A (en) * 1947-02-15 1952-08-26 Glenn L Martin Co Honeycomb structure and method of making same
US2622999A (en) * 1947-08-02 1952-12-23 Roddis Plywood Corp Method for making honeycomb core doors
US2513777A (en) * 1947-12-09 1950-07-04 Chrysler Corp Apparatus for sinuous contoured material
US2553054A (en) * 1948-01-02 1951-05-15 Lincoln Machine and method for producing a continuous honeycomb structure
US2537026A (en) * 1948-01-08 1951-01-09 Delwin A Brugger Device for forming flexible packing and cushioning elements
US2670314A (en) * 1948-03-18 1954-02-23 Douglas Aircraft Co Inc Method for making honeycomb cores for sandwich type structures
US2648371A (en) * 1948-03-27 1953-08-11 Goodwin Method and machine for producing a continuous honeycomb structure
US2581421A (en) * 1948-04-27 1952-01-08 Douglas Aircraft Co Inc Method and apparatus for making structural elements
US2616482A (en) * 1948-07-31 1952-11-04 James F Barnes Integration of multiply web pads
US2610934A (en) * 1948-11-22 1952-09-16 California Refinforced Plastic Method of and apparatus for making honeycomb material
US2636540A (en) * 1949-08-06 1953-04-28 John D Lincoln Honeycomb core fabricating machine
US2668327A (en) * 1950-04-21 1954-02-09 California Reinforced Plastics Method of making a curved honeycomb product
US2654686A (en) * 1950-05-11 1953-10-06 Northrop Aircraft Inc Stiffened honeycomb core
US2711382A (en) * 1951-02-08 1955-06-21 Gen Electric Method of forming and applying metal heat exchange fins
US2773791A (en) * 1954-01-19 1956-12-11 Charles P Maciver Armored garment
US2744846A (en) * 1954-02-04 1956-05-08 Victory Plastics Co Laminated protective material
US2949953A (en) * 1955-05-26 1960-08-23 Maio Vincent Di Pipe insulator and method of making same
US3074839A (en) * 1956-09-17 1963-01-22 Messrs Dufaylite Developments Method of making honeycomb material
US2983640A (en) * 1957-06-24 1961-05-09 Hexcel Products Inc Method of making honeycomb
US3012923A (en) * 1957-09-30 1961-12-12 Owens Corning Fiberglass Corp Fibrous products and method and apparatus for producing same
US2993525A (en) * 1957-10-28 1961-07-25 Continental Can Co Honeycomb fabricating machine
US3160132A (en) * 1957-11-21 1964-12-08 Atlee Corp Method of and apparatus for manufacturing heat-dissipating inserts and the like
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US3468734A (en) * 1966-02-07 1969-09-23 S & S Corrugated Paper Mach Method and apparatus for producing corrugated board
US3859161A (en) * 1971-09-30 1975-01-07 Lone Star Container Corp Rectangular-shaped board of flat corrugated material with an improved edge structure
US4915562A (en) * 1984-09-25 1990-04-10 Elpatronic Ag Rupturable can member as well as method and apparatus for its production
US4795295A (en) * 1984-09-25 1989-01-03 Elpatronic Ag Rupturable can member as well as method and apparatus for its production
US4650454A (en) * 1985-02-21 1987-03-17 Moll Richard J Roller for glue applying folding machines
US20060174999A1 (en) * 1996-03-26 2006-08-10 Rupel John D Expandable and collapsible window covering and methods for making same
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US7211226B2 (en) 2000-03-09 2007-05-01 Fleetgaurd, Inc. Catalyst and filter combination
US7235124B2 (en) 2000-03-09 2007-06-26 3M Innovative Properties Company High temperature nanofilter, system and method
US6776814B2 (en) 2000-03-09 2004-08-17 Fleetguard, Inc. Dual section exhaust aftertreatment filter and method
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US20030190269A1 (en) * 2000-03-09 2003-10-09 Liu Z. Gerald Catalyst and filter combination
US7052532B1 (en) 2000-03-09 2006-05-30 3M Innovative Properties Company High temperature nanofilter, system and method
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US6946012B1 (en) 2000-05-18 2005-09-20 Fleetguard, Inc. Filter and forming system
US6582490B2 (en) 2000-05-18 2003-06-24 Fleetguard, Inc. Pre-form for exhaust aftertreatment control filter
US7258719B2 (en) 2000-05-18 2007-08-21 Fleetguard, Inc. Filter and forming system
US20040116276A1 (en) * 2002-02-12 2004-06-17 Aleksey Yezerets Exhaust aftertreatment emission control regeneration
US7572311B2 (en) 2002-10-28 2009-08-11 Geo2 Technologies, Inc. Highly porous mullite particulate filter substrate
US6946013B2 (en) 2002-10-28 2005-09-20 Geo2 Technologies, Inc. Ceramic exhaust filter
US7582270B2 (en) 2002-10-28 2009-09-01 Geo2 Technologies, Inc. Multi-functional substantially fibrous mullite filtration substrates and devices
US7574796B2 (en) 2002-10-28 2009-08-18 Geo2 Technologies, Inc. Nonwoven composites and related products and methods
US7211232B1 (en) 2005-11-07 2007-05-01 Geo2 Technologies, Inc. Refractory exhaust filtering method and apparatus
US7451849B1 (en) 2005-11-07 2008-11-18 Geo2 Technologies, Inc. Substantially fibrous exhaust screening system for motor vehicles
US20070104622A1 (en) * 2005-11-07 2007-05-10 Bilal Zuberi Device for Catalytically Reducing Exhaust
US20070104620A1 (en) * 2005-11-07 2007-05-10 Bilal Zuberi Catalytic Exhaust Device
US7682578B2 (en) 2005-11-07 2010-03-23 Geo2 Technologies, Inc. Device for catalytically reducing exhaust
US7682577B2 (en) 2005-11-07 2010-03-23 Geo2 Technologies, Inc. Catalytic exhaust device for simplified installation or replacement
US7444805B2 (en) 2005-12-30 2008-11-04 Geo2 Technologies, Inc. Substantially fibrous refractory device for cleaning a fluid
US7722828B2 (en) 2005-12-30 2010-05-25 Geo2 Technologies, Inc. Catalytic fibrous exhaust system and method for catalyzing an exhaust gas
US7563415B2 (en) 2006-03-03 2009-07-21 Geo2 Technologies, Inc Catalytic exhaust filter device
US20070207070A1 (en) * 2006-03-03 2007-09-06 Bilal Zuberi Catalytic exhaust filter device

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