US3884749A - Machine for the manufacture of wood fibre panels in continuous lengths - Google Patents

Machine for the manufacture of wood fibre panels in continuous lengths Download PDF

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Publication number
US3884749A
US3884749A US288294A US28829472A US3884749A US 3884749 A US3884749 A US 3884749A US 288294 A US288294 A US 288294A US 28829472 A US28829472 A US 28829472A US 3884749 A US3884749 A US 3884749A
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Prior art keywords
endless belt
sheet
end roll
roller
roll
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US288294A
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English (en)
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Christa Pankoke
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Priority claimed from AT794071A external-priority patent/AT321555B/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/28—Moulding or pressing characterised by using extrusion presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/26—Moulding or pressing characterised by using continuously acting presses having a heated press drum and an endless belt to compress the material between belt and drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N5/00—Manufacture of non-flat articles
    • B27N5/02—Hollow articles
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/016—Extrude and mold
    • 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
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1712—Indefinite or running length work
    • Y10T156/1722—Means applying fluent adhesive or adhesive activator material between layers
    • Y10T156/1727—Plural indefinite length or running length workpieces
    • 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
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1712—Indefinite or running length work
    • Y10T156/1741—Progressive continuous bonding press [e.g., roll couples]

Definitions

  • the present invention concerns a machine for the manufacture of wood fibre panels, particularly chip panels, by a continuous method, the machine comprising a conveyor belt guiding a slab of chips strewn thereon to a pressing roller and compressing it there into a panel or sheet. 7
  • the object of the present invention to provide such a machine that the wood fibre panel can be produced in various thicknesses; the machine is of simple construction and can be reliably operated by only a few operators.
  • a machine for the production of wood fibre or chip panels comprising a feeding device to produce a continuous sheet of material, and means for producing ribs extending in the longitudinal direction of the said sheet, the machine including either a pressing roller with rib moulding grooves extending round the circumference thereof or a wide extension nozzle with a rib-forming contour.
  • the pressing roller is preferably provided with parallel annular grooves on its surface and at right angles to the axis of rotation of the roller; these annular grooves may be divided into separate chambers by individual bars with the result that the ribs to be produced are interrupted longitudinally.
  • the chip material feeding means may be an endless steel band circulating about'two guide rollers spaced from each other, the upper length of which, carrying the slab of chips, extends in a common horizontal plane on both sides of the pressing roller, which is located between the guide rollers in the direction of movement of the belt and has its upper surface below the slab level.
  • This conveyor belt is preferably designed to be heated to varying degrees for the uniform transmission of heat to the panel.
  • the pressing roller is provided with a doctor or scraper shaped to the profile of the roller.
  • the resultant panel has ribs which extend upwardly.
  • two identical machine units are arranged as one unit one above the other, the active lengths of the two belts moving in opposite directions.
  • the lower machine unit produces panels with upwardly projecting ribs and the upper machine unit produces panels with similarly upwardly pointing ribs; the panel of the upper unit moves oppositely to the lower panel and, after pressing, is deflected downwardly so that the ribs of the upper panel point downwardly and are then connectable to the ribs of the lower panel since they can be made to abut each other.
  • the ribs may be relatively staggered.
  • a continuous adhesive applicator device is associated with each belt which provides the surfaces of the ribs formed by the bases of the grooves with an adhesive for the interconnection of .the panels.
  • a pressing device is provided between the two belts which presses the two lengths of panels, disposed with their adhesive surfaces against each other, into a composite structure.
  • This slab of material may consist of glued chips or a slab of chips and/or fibres having a varying degree of plasticity.
  • FIG. 1 is a side view of a machine for the continuous production of single wood fibre panels with ribs
  • FIG. 2 is a plan view of the same machine
  • FIG. 3 is a schematic side view of a machine for the continuous manufacture of wood fibre panels from two sheets
  • FIG. 4 is a plan view of a pressing roller with grooves extending around the cylinder
  • FIG. 5 is a cross-section through the roller according to FIG. 4,
  • FIG. 6 is a plan view of a pressing roller comprising" interrupted cylindrical grooves
  • FIG. 7 is a cross-section through the roller according to FIG. 6,
  • FIG. 8 is a cross-section through the pressing area between the pressing roller and conveyor belt with an'interposed panel length
  • FIG. 9 is a cross-section through a panel formed of two sheets located with their ribs opposite each other,
  • FIG. 10 is a cross-section through a panel formed of two sheets with interlaced ribs
  • FIG. 11 is a cross-section through a panel made from one ribbed sheet and one plain sheet,
  • FIG. 12 is a cross-section through a panel with interrupted ribs
  • FIG. 13 is a longitudinal view through an extrusion press having an extruder screw and a wide mouthpiece, sectioned on the line I-I of FIG. 14,
  • FIG. 14 is a plan view of the same extrusion press
  • FIG. 15 is a cross-section through the wide mouth piece taken on the line IIII of FIG. 13,
  • FIG. 16' is a cross-section through two superimposed sheets both provided with ribs
  • FIG. 17 is a plan view of an extrusion press comprising a plurality of adjacent extruder screws.
  • a machine for the preparation of wood chip or fibre panels or sheets 10, comprises a conveyor belt 15 conveying layers of material ll, 12, strewn thereon to a pressing roller l3, l4 and pressing it into a sheet panel 10 in a continuous process.
  • the pressing roller 13, 14 is provided with a plurality of spaced grooves 17, pressing the layers of material 11, 12 strewn on the conveyor belt'l5 to form continuously a panel layer provided with ribs 16 projecting above the thickness of the panel.
  • the pressing roller 13' is'provided'w'ith parallel annu-
  • the pressing roller 13 may be provided with annular grooves which are interrupted by bars 19 (FIG. 6).
  • the interrupted grooves 18 may be formed by leaving some of the material on the roller during formation of the grooves, or by parts 19 subsequently inserted into the formed grooves.
  • the thickness of the bars 19 on the circumference of the roller is selected in accordance with the spacing of the ribs 16.
  • the pressing roller is provided parallel to its axis of rotation with spaced recesses by which ribs can be produced on the wood sheet, the ribs extending in the direction of movement of the belt.
  • the grooves are formed in the pressing roller inclined to the axis of rotation of the roller, or helical.
  • the recesses of the pressing roller have a crosssection (preferably trapezoidal,) which enlarges to- 'wards the surface of the roller and the grooved bases of which are formed by a plane cross sectional surface.
  • the cross sectional edges on the surface of the cylinder are rounded and/or chamfered; in the divided recesses 18, the cross-section of the individual recesses 18 is also enlarged in the circumferential direction of the roller and the basic limiting edges formed by the bars 19 are also rounded and/or chamfered on the surface of the roller.
  • the conveyor belt shown in FIGS. 1 and 2 is an endless steel band circulating about two guide rollers 20 which are rotatable about two parallel axes spaced from each other, the upper length 15a of the belt, carrying the sheets of material 11, 12 extending in a horizontal plane, the pressing roller 13 being located between the two guide rollers 20.
  • the length 15a cooperating with the pressing roller 13 extends on both sides of the pressing roller 13 in a common plane and partly encloses said roller 13.
  • the.pressing-roller 13 with its surface below the plane of the carrying length 15a and to associate belt guiding rollers 21 with the pressing roller 13 ahead of it and behind it in the direction of movement of the belt, by which roller 21 the length 15a is guided downwardly to the roller 13 and away again into the carrying plane.
  • a device 22 strewing a layer of chips 11 of uniform thickness over the length 15a of the belt, and a profile strewing device 23 associated with the strewing device 22 for strewing individual elevated rows of chips 12 onto the uniform layer 11 for forming the commencement of the ribs.
  • the profile strewing device '23 strews the chips in spaced ridges onto the panel layer 11 to correspond to the spacing of the ribs 16 to be formed and to the grooves 17 18 of the rollers 13, 14, forming the ribs 16.
  • the blade enters the grooves 17 to remove the pressed ribs 16 and enables the sheet 10, 16 to be, withdrawn from the pressing roller 13 neatly'and without damage.
  • the doctor 24 is shaped to the cross-section of the surface of the pressing roller 13 (FIG. 4).
  • the pressing roller 13, 14 and/or the conveyor belt 15 are preferably heatable. so that a bonding agent (glue, adhesive) mixed with the chips, bonds during pressing and consolidates the pressed chipsinto the appropriate shape.
  • a bonding agent glue, adhesive
  • the conveyor belt 15 In order to expose the entire panel cross-section, which is of varying thickness on account of the ribs 16, to a uniform heating action, it is preferable to provide the conveyor belt 15 with zones heated to a varying degree, the zones of the belt in the region of the ribs 16 providing more heat than the other zones.
  • the belt 15 may be divided into zones of different heat either parallel or transverse to the feed direction.
  • the belt 15 In the region betweeneach two adjacent ribs 16 and in grooves 17, 18, the belt 15 may be provided with an insulation layer 25 of poorly conducting material, impeding the transmission of heat to the strips of belt disposed below the elevations 12. Due to this formation of the belt the temperature to which the different thicknesses of the band is raised is uniform and even over the entire crosssection of the belt.
  • roller 13, 14 The same formation may also be provided for th pressing roller 13, 14, said roller giving a shorter transmission of heat in the region of its recesses 17, 18 than in the region of the surface between the recesses l7, 18.
  • a sheet of material consisting of a layer of chips 11 and ridges 12 thereon is strewn onto the belt 15 moving in the direction of the arrow, which is then conveyed by the belt 15 to the pressing roller 13, 14; the belt 15 and the pressing roller 13, 14then compress the loose mass 11, 12 into a panel sheet the bonding-agent of the chips acting to consolidate the panel under the action of heat.
  • the very high ridges 12 are pressed into the grooves 17, 18 of the pressing roller 13, 14 to form the panel ribs 16 and, together with the panel 10, represent a single unit.
  • FIG. 3 of the drawings discloses another embodiment of the machine for the continuous production of the chip panels 10 with ribs 16; this'machine is a duplex form of machine according to FIG. 1, in which machine two panel sheets 10 provided with ribs 16 are produced and then connected together to form a unit.
  • This machine has two conveyor belts 15 which circulate endlessly about guide rollers 20, in the two upper lengths 15a of which respective pressing rollers 13, 14 are provided.
  • the two sheet bearing lengths 15a run in opposite directions and the portions on both sides of the pressing roller 13, 14 each extend in a common horizontal plane.
  • each conveyor belt 15 Associated with each conveyor belt 15 is a sheet strewing device 22 and a profile or ridge strewing device 23 thestrewing device 22 being located ahead of the profile strewing device 23 in the direction of movement of the belt; the two devices 22, 23 of the lower machine unit are at one end of the belt run and the two devices 22, 23 of the upper machine unit are at the opposite other end of the belt run.
  • the lower belt 15 and the pressing roller 13, 14, produces a sheet, the ribs 16 of which point upwardly; the
  • upper belt 15 produces a sheet with upwardly pointing 0 ribs 16, this sheet being deflected by the guide roller 20, with the result that the ribs 16 then point downwardly to rest on the ribs 16 of the lower sheet or interlace between them.
  • a device 26 applying adhesive, such as glue or the like, to the exposed surfaces formed by the plane base surface of the grooves, is associated with each belt following the doctor blade 24; the glueing device 26 for the lower belt 15 is located after the pressing roller 13 above the bearing length 15a and the adhesive applicator 26 for the upper belt 15 is provided in the deflecting area (roller Following the pressing rollers 13, 14 of the upper belt there are further belts 27 above and below the two adjacent belt lengths (upper run 15a of the lower belt 15 and lower run of the upper belt 15) pressing the two panel lengths l0, 16- together: to form a plate unit.
  • the panel sheets produced by these two machine units can be cut to any desired length.
  • the reversing rollers 20 and the pressing roller 13 are located with their bearing axles on the same level and are mounted on a machine frame, not shown, on which the reversing rollers 21 are mounted and on which the doctor blades 24 and feed devices 22, 23 are fixed.
  • the same arrangement is used in the machine shown in FIG. 3 for each panel producing unit, except that the upper unit (with shorter carrier belt) is vertically adjustable by means of connecting members such as clampable slides.
  • the machine of FIG. 1 may also'be used as a separate unit for connecting ribbed panel lengths 10 to plane panels 28.
  • a panel is produced which is formed from two sheets 10, the ribs 16' of which are superposed to abut each other and are there connected together by adhesive to form a unit.
  • FIG. 10 shows a panel in which two sheets 10 engage with interlaced ribs 16, the ribs of each sheet resting between ribs on the other sheet. They are cemented together as before by adhesive applied to the end of the ribs.
  • FIG. 11 shows a ribbed panel length 10, on the ribs 16 of which a plain panel 28 is glued.
  • FIG. 12 shows a panel 10 with interrupted ribs 16 extending in a line; the interruption in the ribs is produced by bars 19. These interrupted ribs are of advantage inremoving the pressed sheet 10 from the grooves 18, since this panel l0 is subjected in the area of the rib to very little longitudinal or expansion stressing.
  • the pressing rollers 13, 14 and the strewing devices 22, 23 of the upper belt 15 are mounted so as to be axially displaceable relatively to the lower belt 15.
  • a machine is used in which the chips with admix-' tured bonding agent (glue or the like) are pressed by the extrusion pressing method through a suitably shaped jet or nozzle and applied continuouslyto a base, such as a conveyor belt. This extrusion pressing machine, as shown in FIGS.
  • FIG. 16 shows an entire profile section assembled from two wood fibre panels 34 with ribs 37 and comprising centre bars '39 between cavities 40 in the wood fibre panel, which is completely flat on both sides.
  • moisture content of saidpulp being made higher or 1 lower according to the prevailing conditions.
  • the grooves 17, 18,and bars 19 of the pressing rollers 13, 14, form shaping members for the panel ribs 16 to be produced, whilst the wide slots 35 and the grooves 36 of the nozzles 33, 43, are also shaping members for forming theribs.
  • the conveyor belt 15 and the endless screws 30, 41, form devices for feeding the chip material.
  • a machine for continuously producing from a material which is in comminuted form and includes a binder which will set when heated, a sheet having a pair of opposed faces providing the sheet with a cross sectional configuration having a straight line at one of said opposed faces and a predetermined profile at the other of said opposed faces, an endless belt, guide rollers supporting said belt, a first feeding device depositing on said belt a continuous'layer of said material, a second feeding device depositing ridges of said material on the layer deposited by said first feeding-device, a pressure roller formed with grooves extending around the surface thereof, said belt and said layer with ridges ing individual continuous ridges of said material onto said uniformly thickslab with said ridges being laterally distributed on said layer atfspaced intervals corresponding to the spaces between said ribs to be subsequently formed by said pressure roller.
  • a machine for continuously producing from a material which is in comminuted form and includes a binder which will set when heated, a sheet having a pair of opposed faces providing the sheet with a cross sectional configuration having a straight line at one of said opposed faces and a predetermined profile at the other of said opposed faces, an endless belt, guide rollers supporting said belt, a first feeding device depositing on said belt a continuous layer of said material, a second feeding device depositing ridges of said material on the layer deposited by said first-feeding device, a pressure roller formed with grooves extending around the surface thereof, said belt and said layer with ridges thereon passing around said pressure roller to form said ridges into ribs, and means for applying heat to the ribbed layer to set said binder, said heating means being adapted to heat said ribbed layer to a lesser degree between said ribs.
  • a machine for continuously producing from a material which is in comminuted form and includes a binder which will set when heated, a sheethaving a pair of opposed faces providing the sheet with a cross sectional configuration having a straight line at one of said opposed faces and a predetermined profile at the other of said opposed faces, an endless belt, guide rollers supporting said belt, a first feeding device depositing on said belt a continuous layer of said material, a second feeding device depositing ridges of said material on the layer deposited by said first-feeding device, apressure roller.
  • said belt and 'said layer with ridges thereon passing around said pressure roller to form said ridges into ribs, and means for applying heat to the ribbed layer to set said binder, said conveyor belt being provided in each region between adjacent ribs with an insulating strip transmitting less heat than the portions of said belt below the ribs.
  • a machine for continuously producing from a material which is in comminuted form and includes a binder which will set when heated, a sheet having a pair a of opposed faces providing the sheet with a cross sectional configuration having a straight line at one of said opposed faces and a predetermined profile at the other of said opposed faces, an endless belt, guide rollers supporting said belt, a first feeding device depositing on said belt a continuous layer of said material.
  • a second feeding device depositing ridges of said material on the layer deposited by said first-feeding device, a pressure roller formed with grooves extending around the surface thereof, said belt and said layer with ridges thereon passing around said pressure roller to form said ridges into ribs, and means for applying heat to the ribbed layer to set said binder, including a doctor blade contacting said pressing roller in the outlet region of said pressed material sheet, said-blade removing said sheet from said pressing roller and extracting said ribs from said roller grooves by engaging in said grooves,
  • said blade having a profile shaped to the profiled surfrom a material, which is in comminuted form and includes a binder, endless belt means, a pair of end roll means cooperating with said endless belt means for guiding an upper run thereof from one to the other of said end roll means and a lower run thereof from said other back to said one end roll means, each of said end roll means including at least one roller engaging and guiding said endless belt means and said rollers having parallel axes, respectively, a rotary forming roll situated in its entirety between said pair of end roll means at an elevation higher than said lower run of said endless belt means and at an elevation lower than the uppermost parts of said pair of end roll means where said endless belt means travels from saidone end roll means and is received at said other end roll means, said forming roll having an axis parallel to the axes of said guide rollers, an additional pair of guide rollers having axes parallel to the axis of said forming roll, said additional pair of guide rollers forming a leading and a trailing guide roller, said leading guide
  • a first set of components comprising endless belt means, a pair of end roll means cooperating with said endless belt means for guiding an upper run thereof from one to the other of said end roll means and a lower run thereof from said other back to said one end roll means, each of said end roll means including at least one roller engaging and guiding said endless belt means and said rollers having parallel axes, respectively, a rotary forming roll situated in its entirety be tween said pair of end roll means at an elevation higher than said lower run of said endless belt means and at an elevation lower than the uppermost parts of said pair of end roll means where said endless belt means travels from said one end roll means and is received at said other end roll means, said forming roll having an axis parallel to the axes of said guide rollers, an additional pair of guide rollers having axes parallel to the axis of said forming roll, said additional pair of guide rollers forming-a leading and

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Laminated Bodies (AREA)
US288294A 1971-09-13 1972-09-12 Machine for the manufacture of wood fibre panels in continuous lengths Expired - Lifetime US3884749A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT794071A AT321555B (de) 1971-09-13 1971-09-13 Maschine zum Herstellen von Holzfaserplatten
CH1744471A CH548279A (en) 1971-09-13 1971-11-30 Chipboard mfg machine - has grooved roll forming ribs in board face

Publications (1)

Publication Number Publication Date
US3884749A true US3884749A (en) 1975-05-20

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US288294A Expired - Lifetime US3884749A (en) 1971-09-13 1972-09-12 Machine for the manufacture of wood fibre panels in continuous lengths

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US (1) US3884749A (enExample)
JP (1) JPS4839574A (enExample)
DE (1) DE2243267A1 (enExample)
FR (1) FR2153940A5 (enExample)
IT (1) IT965328B (enExample)
SE (1) SE394970B (enExample)

Cited By (10)

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US4661186A (en) * 1984-10-26 1987-04-28 Carbolux S.P.A. Process and apparatus for joining protective plastic films to an extruded plastic sheet, with the aid of an auxiliary plastic film
US4888082A (en) * 1986-10-31 1989-12-19 Nordson Corporation Apparatus for adhesive transfer
US5213686A (en) * 1991-08-26 1993-05-25 Kamyr, Inc. Compression feeder
WO1999019109A1 (de) * 1997-10-14 1999-04-22 Berndorf Band Ges.Mbh & Co. Kg Endloses stahlband für doppelbandpressen und verfahren zur herstellung desselben
US6197142B1 (en) * 1998-05-04 2001-03-06 Michael Helmut Wolff Composite panel and method of making the same
US6511567B1 (en) 1999-03-31 2003-01-28 International Paper Company Composite building components and method of making same
US6582555B2 (en) 2001-11-05 2003-06-24 Kimberly-Clark Worldwide, Inc. Method of using a nozzle apparatus for the application of the foam treatment of tissue webs
US6730171B2 (en) 2001-11-05 2004-05-04 Kimberly-Clark Worldwide, Inc. Nozzle apparatus having a scraper for the application of the foam treatment of tissue webs
US6773791B1 (en) 1999-03-31 2004-08-10 Masonite Corporation Composite building components, and method of making same
US20090255205A1 (en) * 2008-03-28 2009-10-15 Robert Noble Engineered Molded Fiberboard Panels and Methods of Making and Using the Same

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JPS5833833B2 (ja) * 1977-12-28 1983-07-22 日本写真印刷株式会社 凹凸模様の転写可能な熱転写材
EP0262128A1 (en) * 1985-05-29 1988-04-06 JOHANSEN, Rex Method and apparatus for extrusion
JP2802204B2 (ja) * 1992-08-28 1998-09-24 永大産業株式会社 軽量ボードの製造方法
CA2832981C (en) 2011-04-29 2017-03-21 Irobot Corporation An autonomous mobile robot for cleaning with a front roller in a first horizontal plane positioned above a second horizontal plane of a rear roller
US11109727B2 (en) 2019-02-28 2021-09-07 Irobot Corporation Cleaning rollers for cleaning robots

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US3039137A (en) * 1958-02-10 1962-06-19 American Biltrite Rubber Co Apparatus for forming plastic sheets
US3150416A (en) * 1960-07-29 1964-09-29 Kendall & Co Method and apparatus for producing apertured non-woven fabrics
US3210447A (en) * 1963-07-08 1965-10-05 Allen Ind Process for making patterned foam padding material
US3533872A (en) * 1967-05-01 1970-10-13 Nat Floor Products Co Inc Method of making a cove molding in a continuous laminated process
US3737351A (en) * 1970-07-14 1973-06-05 Mende & Co W Method and apparatus for the continuous manufacture of chip board from binder and wood chips
US3748214A (en) * 1971-08-16 1973-07-24 Du Pont Channel structure

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3039137A (en) * 1958-02-10 1962-06-19 American Biltrite Rubber Co Apparatus for forming plastic sheets
US3150416A (en) * 1960-07-29 1964-09-29 Kendall & Co Method and apparatus for producing apertured non-woven fabrics
US3210447A (en) * 1963-07-08 1965-10-05 Allen Ind Process for making patterned foam padding material
US3533872A (en) * 1967-05-01 1970-10-13 Nat Floor Products Co Inc Method of making a cove molding in a continuous laminated process
US3737351A (en) * 1970-07-14 1973-06-05 Mende & Co W Method and apparatus for the continuous manufacture of chip board from binder and wood chips
US3748214A (en) * 1971-08-16 1973-07-24 Du Pont Channel structure

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4661186A (en) * 1984-10-26 1987-04-28 Carbolux S.P.A. Process and apparatus for joining protective plastic films to an extruded plastic sheet, with the aid of an auxiliary plastic film
US4888082A (en) * 1986-10-31 1989-12-19 Nordson Corporation Apparatus for adhesive transfer
US5213686A (en) * 1991-08-26 1993-05-25 Kamyr, Inc. Compression feeder
WO1999019109A1 (de) * 1997-10-14 1999-04-22 Berndorf Band Ges.Mbh & Co. Kg Endloses stahlband für doppelbandpressen und verfahren zur herstellung desselben
US6436553B1 (en) 1997-10-14 2002-08-20 Berndorf Band Gesmbh Continuous steel strip for twin presses and method for producing the same
US6197142B1 (en) * 1998-05-04 2001-03-06 Michael Helmut Wolff Composite panel and method of making the same
US20050011605A1 (en) * 1999-03-31 2005-01-20 Ruggie Mark A. Composite building components, and method of making same
US6511567B1 (en) 1999-03-31 2003-01-28 International Paper Company Composite building components and method of making same
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FR2153940A5 (enExample) 1973-05-04
IT965328B (it) 1974-01-31
DE2243267A1 (de) 1973-03-22
SE394970B (sv) 1977-07-25
JPS4839574A (enExample) 1973-06-11

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