US3891376A - Apparatus for the continuous production of chipboard or like material - Google Patents

Apparatus for the continuous production of chipboard or like material Download PDF

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Publication number
US3891376A
US3891376A US404387A US40438773A US3891376A US 3891376 A US3891376 A US 3891376A US 404387 A US404387 A US 404387A US 40438773 A US40438773 A US 40438773A US 3891376 A US3891376 A US 3891376A
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US
United States
Prior art keywords
band
heat transfer
transfer elements
pressing
drum
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US404387A
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English (en)
Inventor
Rolf Gersbeck
Berndt Greten
Hans-Peter Steininger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bison Werke Baehre and Greten GmbH and Co KG
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Baehre & Greten
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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
    • B27N3/26—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

Definitions

  • a plurality of separate heat transfer elements are positioned adjacent the steel band and within the pressing drum. These heat transfer elements are spaced from one another in the direction of the width of the band and drum so as to accommodate a separate heating or cooling of the various sections across the width of the band and drum.
  • Automatic thickness control means in the form of thickness detectors arranged across the width of the finished board and a control device for controlling the individual heat transfer elements in response to the detected thickness variations are also provided.
  • This invention relates to apparatus for the continuous production of chipboard or like material and which includes an endless band which is guided under tension so as to press the board material against a pressing surface. More particularly, the invention relates to apparatus of the above-mentioned type wherein the band is a heatable steel band which is guided around a plurality of guide and feed rollers as well as a heatable pressing drum. Apparatus of this general type is described in US. Pat. No. 2,890,484 and Holz-Zentralblatt 1970 No. 118, page 1726/77.
  • the guide and feed rollers for guiding the steel band and compressing the layer of chips or the like all have a relatively large diameter so that the whole apparatus takes up a relatively large amount of space.
  • the roller serving to compress the layer of chips and constructed as a pressing drum has a relatively large diameter so that the space requirements of that apparatus are less than those of the first apparatus.
  • the temperature necessary for hardening the layer of chips is applied in such a way that in the first apparatus all the guide and feed rollers are heated whereas in the second apparatus practically only the pressing drum was heated.
  • the endless band which passes around the guide and feed rollers or the pressing drum is also heated at least in the vicinity of the actual pressing drum.
  • Chipboard produced on such continually operating presses generally has a thickness of 0.6 to 6.0 mm. Due to the limited thickness of these chipboards considerable importance is attached to the requirement that these chipboards should leave the apparatus without requiring subsequent grinding. Therefore it is required/desired that the continuously produced lengths of chipboard only have very small thickness tolerances.
  • the present invention contemplates overcoming the above-discussed disadvantages of prior arrangements by improving the known apparatus so that chipboard can be produced which not only will have a substantially constant cross-sectional thickness over the complete width but will also have a strength in the edge regions such that the tendency to cracking or breaking of parts of the board will be avoided or at least substan tially reduced.
  • Preferred embodiments contemplated by the present invention include apparatus for the continuous production of chipboard or like material comprising an endless, heatable steel band which is under tensior and is guided around a plurality of guide and feed rollers as well as a heatable pressing drum and including a plurality of parallel heating and/or cooling (heat transfer) elements arranged to influence the temperature of at least said steel band and whose temperatures are controllable in such a way that in operation a layer of chipboard forming material can be compressed to substantially the same thickness over its entire width.
  • apparatus for the continuous production of chipboard or like material comprising an endless, heatable steel band which is under tensior and is guided around a plurality of guide and feed rollers as well as a heatable pressing drum and including a plurality of parallel heating and/or cooling (heat transfer) elements arranged to influence the temperature of at least said steel band and whose temperatures are controllable in such a way that in operation a layer of chipboard forming material can be compressed to substantially the same thickness over its entire width.
  • the peripheralloutline of the pressing drum can be influenced in such a way that the cross-section of the finished chipboard will be substantially constant at all points.
  • the heating and/or cooling elements are associated with at least one length of the endless steel band located between the guide and feed rollers immediately upstream of the pressing portion of the travel path of the band.
  • the necessary temperature conditions can be precisely regulated by appropriately controlling the temperature of the respective separate heating and/or cooling elements spaced across the width of the band.
  • heating the pressing drum it has been contemplated to heat not only the surface of the pressing drum but also the side walls thereof and to insulate the latter against radiation.
  • the heating of the pressing drum surfaces can however be improved in accordance with another feature of the present invention by providing the side walls of the drum with openings through which the side walls of the drum are heatable or coolable with water, oil or the like or heatable by electrically heatable elements disposed in said openings.
  • These openings are appropriately arranged in concentric circles around the axis of rotation of the pressing drum, the number of heating elements arranged near the cylindrical surface of the pressing drum preferably being larger than in the area closer to the axis.
  • the pressing drum temperature can be accurately regulated in the edge regions thereof.
  • FIG. 1 is a side view of an apparatus constructed according to the invention
  • FIG. 3 is a cross-section through a portion of the pressing drum of the FIG. 1 apparatus with a plurality of heating and/or cooling elements arranged in accordance with the present invention.
  • an endless steel band 1 is guided around a plurality of guide and feed rollers 2, 3, 4, 5, 6 and a pressing drum 7 in such a way that glued chips 9 can be supplied to the steel band 1 by forming station 8 between the guide roller and a roller 6 constructed as a feed roller.
  • the layer of chips 9 is fed in the direc tion of arrow 10 by the continuously moving band 1 to a gap 11' between feed roller 6 and drum 7 where it is compressed between drum 7 and band 1
  • the steel band 1 passes around most of the periphery of drum 7 it is guided off the periphery of drum 7 via guide roller 2.
  • roller 4 acts both as a guide means for the steel band 1 and as a feed roller which aids in pressing the steel band 1 against the periphery of pressing drum 7.
  • Beneath steel band 1 and between guide roller 5 and feed roller 6 are provided a plurality of heating and/or cooling elements l2, 13, 14, 15 and 16 (see FIG. 2) which permit the heating from below of steel band 1 in the desired manner.
  • elements as used herein is understood to mean all heating or cooling elements which can serve for heating or cooling the steel band 1.
  • a plurality of heating elements 17 are arranged between the feed rollers 4 and 6 and in addition further elements l8, 19, 20 and 21 are arranged between the other rollers.
  • FIG. 3 The arrangementof heating or cooling elements inside the -drum 7 is shown in FIG. 3 in which circumferentially of the pressing drum 7 annular elements 22, 23, 24, 25 and. 26 are provided. It is not essential to have five such elements and for example, there need only be three annular elements and the same applies for the elements which act on the steel band 1.
  • the individual elements 22 to 26 are connected via wires 22a to 26a with sliding contacts 22b to 26b which control the temperature of the individual elements 22 to 26 via corresponding regulators of schematically indicated temperature controller C.
  • rollers 4 also falls within the scope of the invention to provide rollers 4, Sand 6 with annular elements around the inside of the said rollers in a manner similar to the above-described arrangement of FIG. 3 for the pressing drum 7.
  • the chipboard 9 (FIG. 1) is thicker in the edge region than in the central region as detected by thickness sensing elements S. If now steel band 1 is cooled in its two edge regions (by appropriate control of the temperature by temperature controller C in the edge positioned heat transfer elements such as elements 12 and 16 of FIG. 2) with a coolant supplied to the outer elements whereby the lengths of the two edges of the steel band are then reduced and due to the tension which arises the layer of chips in the .area of its edges is pressed more strongly against the peripheral surface of the pressing drum 7. Consequently, a more uniform thickness of the chipboard over its complete cross-section is obtained.
  • edge regions of the chipboard produced has a lesser, thickness than the central area thereof then the respective outer edge elements of those provided would be supplied with a heating medium in order to increase the length of the steel band in its edge regions.
  • the central area of the chipboard 9 is thinner than the two edge regions, this can also be caused by a deformation of the pressing drum surface.
  • the central area can bulge slightly outwards which can be compensated by lowering the temperature in the central elements and optionally increasing the temperature in the outer elements which serve to heat the pressing drum.
  • the heat supply or heat reduction for the various elements can be continuously controlled by controller C in response to the measured thickness (measured by thickness sensing element S) of the produced chipboard 9 in accordance with a further feature of the invention.
  • Thickness sensing elements S and control devices C, C for effecting changes in the temperature of the respective heating/cooling elements of conventional construction can be used to practice the invention.
  • One skilled in the art will be able to practice the invention with such known, sensing elements and control devices, given the present disclosure.
  • a plurality of separate thickness sensing elements S could be disposed to measure the thickness of the board 9 at different points across the width of the board 9.
  • a control device C is provided for accepting the thickness signals from sensing elements Sand for sending appropriate control signals to raise or lower the temperature of respective ones of said heating and/or cooling elements in response to predetermined deviations from a constant thickness across the width of the board.
  • This control device C is to be appropriately designed to effect the above-described heating and cooling sequence at the edge and central heat transfer elements in response to the respective prescribed thickness variations across the width of the board 9.
  • This control arrangement is also to be appropriately connected to the elements in openings 29 and the electrical contacts of the elements shown in FIG. 3 (see schematically depicted control device C).
  • openings 29 are provided peripherally and uniformly in the side walls 27 and 28 of the pressing drum 7 in which for example. are placed electrically heatable elements.
  • the invention contemplates embodiments where the heating of all the elements takes place gradually and embodiments where, for example, each second or third element is switched off. Since control means for switching on and off said electrically heatable elements of known constructions could be used by one skilled in the art, given the present disclosure, a further description thereof is dispensed with herein.
  • the heat transfer elements positioned along the travel path of band 1 between the rollers can be electrically actuable or they can be actuable in response to flow therethrough of appropriately heated or cooled fluid mediums such as steam, water, or oil.
  • guiding and moving means for guiding and moving said band with a surface of said band in facing relationship to a pressing surface of said pressing means over a material pressing portion of the travel path of said band such that material forming said boards can be conveyed by and compressed between said band and said pressing surface along said material pressing portion, plurality of heat transfer elements disposed adjacent portions of the travel path of said band, said heat transfer elements being spaced from one another in a direction transverse to the travel path of said band, and temperature control means for maintaining said elements at different temperatures with respect to one another for accommodating transfer of different heat levels between the respective elements and respective width portions of the band.
  • said temperature control means includes means for controlling the temperature of each of said heat transfer elements such that the temperature of said band is substantially constant across the width of the band when the band is disposed along said material pressing portions, whereby material forming said boards is compressed along said material pressing portion to substantially the same thickness over the entire width of the boards in a direction transverse to the travel path of said band.
  • said guiding and moving means include guide and feed rollers
  • said plurality of heat transfer elements includes a plurality of heat transfer elements extending circumferentially of at least one of said pressing drum and said rollers, said lastmentioned heat transfer elements being spaced from one another in a direction transverse to the travel path of said band for accommo dating transfer of different heat levels between the respective elements and respective width portions of the respective drum and rollers.
  • said temperature control means includes means for controlling the temperature of each of said heat transfer elements such that the temperature of said band is substantially constant across the width of the band when the band is disposed along said material pressing portions, whereby material forming said boards is compressed along said material pressing portion to substantially the same thickness over the entire width of the boards in a direction transverse to the travel path of said band.
  • said guiding and moving means includes guide rollers spaced substantially from said pressing drum and feed rollers immediately adjacent said pressing drum, and wherein said heat transfer elements include a plurality of heat transfer elements positioned adjacent said band travel path between said guide and feed rollers.
  • Apparatus according to claim 9 further comprising a forming station for supplying material for said boards to said band at a position between said guide and feed rollers, said forming station being disposed on the side of said band opposite said last-mentioned plurality of heat transfer elements.
  • said pressing drum is shaped as a rotatable cylinder with the pressing surface formed on the cylindrical outward facing walls thereof and with side walls closing off the respective ends of the cylinder, and wherein heat transfer elements are disposed inside said drum in openings formed in said walls for accommodating heating of said side walls.
  • each of said heat transfer elements include one of steam, water and oil actuable elements.
  • said temperature control means includes means for cooling the heat transfer elements in the area of the edge portions of said band to a lower temperature than the adjacent heat transfer elements in the area of the middle width portions of the band so that excess thickness of edge portions of the boards is reduced.
  • said temperature control means includes means for heating the heat transfer elements in the area of the edge portions of said band to a higher temperature than the adjacent heat transfer elements in the area of the middle width portions of the band so that the thickness of the edge portions of the boards is increased.
  • said temperature control means includes means'for heating the heat transfer elements in the area of the edge portions of said band to a higher temperature than the adjacent heat transfer elements in the area of the middle width portions of the band so that the thickness of the edge portions of the boards is increased.
  • said temperature control means includes means for selectively switching heat supply to each transfer element.
  • said temperature control means includes means responsive to the detected thickness along various width portions of the boards exiting from said material pressing portion for varying the temperature of the respective heat transfer elements.
  • said temperature control means includes means for cooling the heat transfer elements in the area of the edge portions of said band to a lower temperature than the adjacent heat transfer elements in the area of the middle width portions of the band so that excess thickness of edge portions of the boards is reduced.
  • said temperature control means includes means for heating the heat transfer elements in the area of the edge portions of said band to a higher temperature than the adjacent heat transfer elements in the area of the middle widthportions of the band so that the thickness of the edge portions of the boards is increased.
  • a third guide roller spaced downstream of said secnd guide roller and immediately below said press drum to also serve as a feed roller
  • Apparatus according to claim 26 wherein a plurality of said heat transfer elements are arranged in side-by-side relationship adjacent to said band in facing relationship to the outer surface of said press drum.
  • said temperature control means includes means for separately controlling the temperature of the various heat transfer elements so as to effect an effective control of the temperature gradient across the width of said band with a resultant optimization of the thickness control for the boards being produced.
  • Apparatus according to claim 1 wherein said heat transfer elements are arranged parallel to one another and extend parallel to the travel path of said endless band.
  • said temperature control means includes means for controlling the temperature of each of said heat transfer elements such that the temperature of said first pressing means is substantially constant across the width of the first pressing means when the first pressing means is disposed along said material pressing portion, whereby material forming said boards is compressed along said material pressing portion to substantially the same thickness over the entire width of the boards in a direction transverse to the travel path of said band.
  • said temperature control means includes means for heating the heat transfer elements in the area of the edge portions of said first pressing means to a higher temperature than the adjacent heat transfer elements in the area of the middle width portions of the first pressing means so that the thickness of the edge portions of the boards is increased.

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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)
  • Press Drives And Press Lines (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Treatment Of Fiber Materials (AREA)
US404387A 1972-10-06 1973-10-09 Apparatus for the continuous production of chipboard or like material Expired - Lifetime US3891376A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2249146A DE2249146C3 (de) 1972-10-06 1972-10-06 Vorrichtung zur kontinuierlichen Herstellung von Spanplatten o.dgl

Publications (1)

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US3891376A true US3891376A (en) 1975-06-24

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US404387A Expired - Lifetime US3891376A (en) 1972-10-06 1973-10-09 Apparatus for the continuous production of chipboard or like material

Country Status (7)

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US (1) US3891376A (xx)
JP (1) JPS569418B2 (xx)
CA (1) CA1035913A (xx)
DE (1) DE2249146C3 (xx)
FR (1) FR2201972B1 (xx)
GB (1) GB1445007A (xx)
IT (1) IT1003526B (xx)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938927A (en) * 1974-04-25 1976-02-17 Hermann Berstorff Maschinenbau Gmbh Apparatus for the continuous manufacture of chipboard panels, fibre panels or the like
US4011034A (en) * 1972-07-08 1977-03-08 Karl Kroyer St. Anne's Limited Production of fibrous sheet material
US4098095A (en) * 1976-05-21 1978-07-04 Roth Eldon N Refrigeration apparatus for viscous paste substance
US4349575A (en) * 1980-09-15 1982-09-14 Roth Eldon N Method for freezing and forming meat patties
US4457683A (en) * 1982-03-03 1984-07-03 G. Siempelkamp Gmbh & Co. Belt-type press
US4710271A (en) * 1986-04-08 1987-12-01 Ray R. Miller Belt and drum-type press
US4738752A (en) * 1986-08-12 1988-04-19 Beloit Corporation Heated extended nip press apparatus
US4758310A (en) * 1986-04-08 1988-07-19 Miller Ray R Belt and drum-type pressing apparatus
US4781795A (en) * 1986-04-08 1988-11-01 Ray R. Miller Heated drum having high thermal flux and belt press using same
US4877487A (en) * 1986-04-08 1989-10-31 Miller Ray R Belt and drum-type press with supplemental nip loading means
US5082533A (en) * 1990-04-10 1992-01-21 Beloit Corporation Heated extended nip press with porous roll layers
US5167978A (en) * 1989-11-10 1992-12-01 Hermann Berstorff Maschinenbau Gmbh Press for the continuous production of thin chipboard and fibreboard
US20040018263A1 (en) * 2002-07-24 2004-01-29 Rami Hashimshony Apparatus useful for continuous forming of thermoplastic material and method for use thereof
EP1389510A3 (de) * 2002-08-16 2005-12-07 Voith Paper Patent GmbH Vorrichtung zur Herstellung von Materialbahnen
US20080128940A1 (en) * 2006-12-05 2008-06-05 Marvin Carlston Material Layering Device
US20110159135A1 (en) * 2009-12-30 2011-06-30 Desmarais Thomas Allen System for producing high internal phase emulsion foam
WO2013092154A1 (de) * 2011-12-22 2013-06-27 Voith Patent Gmbh Vorrichtung zur kühlung von bewegtem flachmaterial

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2724060C2 (de) * 1977-05-27 1986-01-16 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Gegenkrümmungseinrichtung an einer kontinuierlich arbeitenden Presse zur Herstellung einer Spanplattenbahn, Faserplattenbahn oder dergleichen
GB2149339B (en) * 1983-11-11 1987-07-29 Stork Brabant Bv Manufacturing a composite web of plastic material
DE3800994A1 (de) * 1988-01-15 1989-08-17 Berstorff Gmbh Masch Hermann Presse zum kontinuierlichen herstellen von span- und faserplatten oder dergleichen
DE4035787A1 (de) * 1989-11-10 1991-05-16 Berstorff Gmbh Masch Hermann Presse zum kontinuierlichen herstellen von duennen pan- und faserplatten
DE19605951C2 (de) * 1996-02-17 1998-07-02 Adolf Dipl Ing Seide Glättwerk für die Herstellung von beidseitig geglätteten Platten und Folien aus thermoplastischem Kunststoff
US20070060457A1 (en) * 2005-09-15 2007-03-15 Eastman Kodak Company Circumferentially variable surface temperature roller

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2172018A (en) * 1937-01-30 1939-09-05 Filatex Corp Machine for and method of making rubber thread
US2434541A (en) * 1944-03-04 1948-01-13 Boston Woven Hose & Rubber Co Manufacture of thermoplastic materials
US2442443A (en) * 1944-12-09 1948-06-01 Bakelite Corp Apparatus for pressing plastic sheeting
US2526318A (en) * 1948-02-10 1950-10-17 Us Rubber Co Sheet finishing apparatus
US2812542A (en) * 1955-08-04 1957-11-12 American Biltrite Rubber Co Method and apparatus for relieving vulcanized belting of internal stresses
US3039137A (en) * 1958-02-10 1962-06-19 American Biltrite Rubber Co Apparatus for forming plastic sheets
US3726627A (en) * 1971-03-09 1973-04-10 Berstorff Gmbh Masch Hermann Vulcanizing of rubber and other like sheet material
US3782875A (en) * 1971-01-04 1974-01-01 Baehre & Greten Apparatus for the continuous manufacture of chip boards

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2172018A (en) * 1937-01-30 1939-09-05 Filatex Corp Machine for and method of making rubber thread
US2434541A (en) * 1944-03-04 1948-01-13 Boston Woven Hose & Rubber Co Manufacture of thermoplastic materials
US2442443A (en) * 1944-12-09 1948-06-01 Bakelite Corp Apparatus for pressing plastic sheeting
US2526318A (en) * 1948-02-10 1950-10-17 Us Rubber Co Sheet finishing apparatus
US2812542A (en) * 1955-08-04 1957-11-12 American Biltrite Rubber Co Method and apparatus for relieving vulcanized belting of internal stresses
US3039137A (en) * 1958-02-10 1962-06-19 American Biltrite Rubber Co Apparatus for forming plastic sheets
US3782875A (en) * 1971-01-04 1974-01-01 Baehre & Greten Apparatus for the continuous manufacture of chip boards
US3726627A (en) * 1971-03-09 1973-04-10 Berstorff Gmbh Masch Hermann Vulcanizing of rubber and other like sheet material

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4011034A (en) * 1972-07-08 1977-03-08 Karl Kroyer St. Anne's Limited Production of fibrous sheet material
US3938927A (en) * 1974-04-25 1976-02-17 Hermann Berstorff Maschinenbau Gmbh Apparatus for the continuous manufacture of chipboard panels, fibre panels or the like
US4098095A (en) * 1976-05-21 1978-07-04 Roth Eldon N Refrigeration apparatus for viscous paste substance
US4349575A (en) * 1980-09-15 1982-09-14 Roth Eldon N Method for freezing and forming meat patties
US4457683A (en) * 1982-03-03 1984-07-03 G. Siempelkamp Gmbh & Co. Belt-type press
US4710271A (en) * 1986-04-08 1987-12-01 Ray R. Miller Belt and drum-type press
US4758310A (en) * 1986-04-08 1988-07-19 Miller Ray R Belt and drum-type pressing apparatus
US4781795A (en) * 1986-04-08 1988-11-01 Ray R. Miller Heated drum having high thermal flux and belt press using same
US4877487A (en) * 1986-04-08 1989-10-31 Miller Ray R Belt and drum-type press with supplemental nip loading means
US4738752A (en) * 1986-08-12 1988-04-19 Beloit Corporation Heated extended nip press apparatus
US5167978A (en) * 1989-11-10 1992-12-01 Hermann Berstorff Maschinenbau Gmbh Press for the continuous production of thin chipboard and fibreboard
US5082533A (en) * 1990-04-10 1992-01-21 Beloit Corporation Heated extended nip press with porous roll layers
US20040018263A1 (en) * 2002-07-24 2004-01-29 Rami Hashimshony Apparatus useful for continuous forming of thermoplastic material and method for use thereof
EP1389510A3 (de) * 2002-08-16 2005-12-07 Voith Paper Patent GmbH Vorrichtung zur Herstellung von Materialbahnen
US20080128940A1 (en) * 2006-12-05 2008-06-05 Marvin Carlston Material Layering Device
US8221109B2 (en) * 2006-12-05 2012-07-17 Gold Tip, Llc Material layering device
US8920694B2 (en) 2006-12-05 2014-12-30 Gold Tip, Llc Methods of forming at least one of a composite product and an arrow shaft, material layering devices, composite products, and arrow shafts
US20110159135A1 (en) * 2009-12-30 2011-06-30 Desmarais Thomas Allen System for producing high internal phase emulsion foam
US8770956B2 (en) * 2009-12-30 2014-07-08 The Procter & Gamble Company System for producing high internal phase emulsion foam
WO2013092154A1 (de) * 2011-12-22 2013-06-27 Voith Patent Gmbh Vorrichtung zur kühlung von bewegtem flachmaterial
AT14312U1 (de) * 2011-12-22 2015-08-15 Voith Patent Gmbh Vorrichtung zur Kühlung von bewegtem Flachmaterial

Also Published As

Publication number Publication date
DE2249146C3 (de) 1980-09-18
IT1003526B (it) 1976-06-10
DE2249146A1 (de) 1974-04-25
FR2201972B1 (xx) 1976-10-01
CA1035913A (en) 1978-08-08
FR2201972A1 (xx) 1974-05-03
GB1445007A (en) 1976-08-04
JPS4973477A (xx) 1974-07-16
JPS569418B2 (xx) 1981-03-02
DE2249146B2 (de) 1975-11-27

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