Treating Material Of Corrugated Lamina Or Dry Adhesive Thereon To Render Tacky Patents (Class 156/208)
  • Patent number: 11852264
    Abstract: The presently disclosed subject matter generally relates to recyclable insulation material for shipping containers, groceries bags, etc., machines for making the recyclable insulation material, and methods for the making the recyclable insulation material. In one aspect, a method of forming an insulation product may include forming a continuous sheet of paper into a plurality of flexible loops defining a plurality of air channels extending in a direction that is substantially perpendicular with a machine direction of the continuous sheet of paper. The method may also include immediately attaching a first layer of paper and a second layer of paper to the plurality of flexible loops as they are formed so that the continuous sheet of paper retains the plurality of flexible loops between the first layer and the second layer and that the plurality of flexible loops remain unattached with respect to one another.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: December 26, 2023
    Assignee: TEMPERPACK TECHNOLOGIES, INC.
    Inventors: James McGoff, Alex Dimen, Daniel Shores, Caleb Meindertsma, Justin Turner-Gonzalez, Charles-Alexandre Archambault Vincent
  • Patent number: 11016020
    Abstract: A device for monitoring humidity in a compressed air system comprises a light emitter; a light sensor; and a hygromorphic element. The hygromorphic element is exposed to a source of compressed air and positioned between the light emitter and the light sensor. The hygromorphic element changes the amount of light passing between the light emitter and the light sensor as the humidity in the compressed air increases.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: May 25, 2021
    Assignee: Bendix Commercial Vehicle Systems LLC
    Inventors: David J Pfefferl, Stephen Howe, Timothy Carritte
  • Patent number: 9951248
    Abstract: A bio-degradable composition comprising 0.2%-10% w/w bio-degradable polymer and an organic non hydroxylic solvent may be used as a coating or adhesive in agriculture and home gardening as well as in other industries.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: April 24, 2018
    Assignee: BIOPLASMAR LTD.
    Inventor: Chanoch Samet
  • Patent number: 9539760
    Abstract: Rotary indexing device for manufacturing packaging tubes, comprising an indexing turntable (3) mounted in a rotary manner about an axis (9), and mandrels (4) and respective supports (14) secured to said turntable (3) and disposed radially with respect to said axis (9); radial actuating means (10, 11) for moving the mandrels (4) in a direction perpendicular to said axis (9) and linear guide means (13) for moving the mandrels (4) in a direction perpendicular to said axis (9); characterized in that the mandrels and respective supports (14), the radial actuating means (10, 11) and the linear guide means (13) are disposed in a direction parallel to said axis (9).
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: January 10, 2017
    Assignee: Aisapack Holding S.A.
    Inventors: Christophe Stahl, Jean-Claude Schwager, Didier Ferrin
  • Patent number: 8975562
    Abstract: Apparatus and methods are disclosed for a safety door of an oven having glass therein with a plastic laminate. The safety door retains glass within the door in order to prevent glass from falling or being forced outside of the oven, which may cause injury.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: March 10, 2015
    Assignee: General Electric Company
    Inventors: Patrick D. Galbreath, Brian Henninger
  • Publication number: 20140335315
    Abstract: A method for manufacturing an underlay material (8) to be set under parquet or a laminate, the underlay material including a sheet material layer (1) and a flexible cellular plastic material layer (3) bonded under the sheet material layer, and a bottom surface of the cellular plastic layer being processed for providing an air space, whereby the bottom surface of the cellular plastic material layer (3) is processed by melting the cellular plastic material locally for providing an air space (9) and for simultaneously bonding the cellular plastic material layer to the sheet material layer (1). An underlay material manufactured by such a method is also described.
    Type: Application
    Filed: December 7, 2012
    Publication date: November 13, 2014
    Inventor: Thomas Virtanen
  • Patent number: 8877321
    Abstract: A novel sizing-adhesive composition for corrugating characterised in that it comprises at least one low molecular weight, water soluble polymer such as a maltodextrin, corrugating boards prepared therewith and methods of producing them.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: November 4, 2014
    Assignee: Cargill, Incorporated
    Inventors: Freddy Johannes Martina Andriessen, Leonard Jannusch, Peter Obradovic-Sandmann
  • Patent number: 8641848
    Abstract: A method and apparatus for combining elongated strips is provided. The strips are wrapped with a flexible material that may include a reinforcement layer and other layers such as adhesives whereby the strips can be bonded to one another. Additionally, layers of e.g., a stabilizing material may be added to one or both sides of the intermediate formed by the elongated strips and flexible material. The stabilizing material can be e.g., layers of a scrim and/or one or more layers of material that are impregnated with a resin to add strength to the intermediate.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: February 4, 2014
    Assignee: Milliken & Company
    Inventors: Frank M. Pitman, Ryan W. Johnson, Michael Tompkins, Anthony S. Brandon
  • Patent number: 8545658
    Abstract: Systems are provided for fabricating a plurality of possible pleat packs used in the formation of circumferentially pleated filter sleeves comprising a substantially horizontal contact surface, a pleating machine having cutting structure, operatively positioned proximate the substantially horizontal contact plane, for delivering continuous upstanding pleat packs of a predetermined pleat formation to the horizontal contact surface, structure for guiding the upstanding pleat packs received from the pleating machine into a flattened condition, structure for securing the pleat packs in the flattened condition and structure for forming the flattened pleat packs into a predetermined length for subsequent formation into sleeves of circumferential pleats. Methods for fabricating a plurality of possible pleat packs used in the formation of circumferentially pleated filter sleeves are also provided.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: October 1, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Aaron Spearin, Craig Spisinski, Mahesh Z. Patel, Keith Wesner, Jack H. Vining, Jr., James Beausoleil
  • Patent number: 8512850
    Abstract: A method of making a corrugating linerboard includes supplying a web of coated linerboard having a first side, a second side and a thickness defined by a distance between the first side and the second side, the first side being coated with a moisture-repellant material; and impregnating the coated linerboard with a hydrophobic material from the second side such that the hydrophobic material penetrates into the thickness of the coated linerboard.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: August 20, 2013
    Assignee: Georgia-Pacific Corrugated LLC
    Inventors: Charles R. Kersnick, Rodney T. Barron, Sandeep Kulkarni, Brian J. Reilly, Ernest Widner
  • Patent number: 8357256
    Abstract: The present invention relates to a process for the manufacture of a three-dimensional nonwoven, a manufacturing line for implementing this process and the resulting three-dimensional nonwoven product. Process characterized in that it consists in using a folding element (5) to apply, to an incoming web containing a proportion of thermoplastic fibers and/or filaments or fixing material, an initial fixing of the fold of the incoming web in the form of peaks and troughs, brought about by blades extending radially on ends of the folding element (5), this initial fixing being applied either by maintaining the folding element (5) itself at a set temperature, or by heating the incoming web. The invention is more particularly applicable to the textile industry, especially the manufacture of nonwovens.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: January 22, 2013
    Assignee: N. Schlumberger
    Inventors: Jean-Louis Dumas, Jean Baptiste Schaffhauser
  • Patent number: 7833376
    Abstract: A method and an apparatus for manufacturing corrugated boards are disclosed. The method may include the steps of supplying a first web of medium having a first and second sides, wherein each side of the first web having a plurality of flutes, and wherein each flute having a crest, applying a wetting agent and an adhesive composition in a sequential fashion to the plurality of flutes on the first side of the first web, and securing a second web of medium is to the plurality of crests on the first side of the first web to form a single-faced corrugated board.
    Type: Grant
    Filed: November 10, 2006
    Date of Patent: November 16, 2010
    Assignee: Copar Corporation
    Inventor: Stephen R. Schmidt
  • Patent number: 7597773
    Abstract: The present invention relates to a producing method of a laminated filter that carries out a corrugating operation and an adhering operation of filter media in the same step. A corrugation forming apparatus (20) sandwiches first and second filter media (12, 14) in their superposed state, and heats and presses the first and second filter media (12, 14) at the softening temperature of the second filter medium (14) to corrugate the filter media (12, 14), and thermally adheres the first and second filter media (12, 14) to each other. With this, it is possible to carry out the corrugating operation and the adhering operation of the first and second filter media (12, 14) in the same step.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: October 6, 2009
    Assignee: Toyota Boshoku Kabushiki Kaisha
    Inventors: Kouji Kume, Yoshihisa Sanami
  • Publication number: 20090193974
    Abstract: A membrane cartridge is manufactured by repeatedly folding and joining two strips of membrane to form a cross-pleated cartridge with a stack of openings or fluid passageways configured in an alternating cross-flow arrangement. The cartridge can be modified for other flow configurations including co-flow and counter-flow arrangements. Methods for manufacturing such cross-pleated membrane cartridges, as well as apparatus used in the manufacturing process are described. Cross-pleated membrane cartridges comprising water-permeable membranes can be used in a variety of applications, including in heat and water vapor exchangers. In particular they can be incorporated into energy recovery ventilators (ERVs) for exchanging heat and water vapor between air streams being directed into and out of buildings.
    Type: Application
    Filed: January 14, 2009
    Publication date: August 6, 2009
    Inventors: Greg Montie, James Franklin Dean, Curtis Mullen, Robert Hill
  • Patent number: 6875299
    Abstract: The present application relates to a method for producing a laminate comprised of alternating smooth and corrugated sheets and which are to form a corrugated structure for the manufacture of contactors, characterized by that a first starting material is impregnated with a solution comprising water glass and additive whereas the additive is present at a high level and which is later corrugated and that a second starting material is impregnated with a solution comprising water glass and additive whereas the additive is present at a moderate level and that the both starting materials are brought together after the corrugation of the first starting material whereby the adhesion is maintained at a high level. The present application also relates to a laminate obtainable by said method and a contactor manufactured from a laminate obtainable by said method.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: April 5, 2005
    Assignee: AB Carl Munters
    Inventor: Hakan Vangbo
  • Publication number: 20030056886
    Abstract: A method and an apparatus for manufacturing corrugated boards are disclosed. The method may include the steps of supplying a first web of medium having a first and second sides, wherein each side of the first web having a plurality of flutes, and wherein each flute having a crest, applying a wetting agent and an adhesive composition in a sequential fashion to the plurality of flutes on the first side of the first web, and securing a second web of medium is to the plurality of crests on the first side of the first web to form a single-faced corrugated board.
    Type: Application
    Filed: September 21, 2001
    Publication date: March 27, 2003
    Inventor: Stephen R. Schmidt
  • Patent number: 6505285
    Abstract: One or more embodiments of the invention provide for a SEG (segment) subsystem of a parallel database extension (PDE) that provides services for creating, manipulating, and destroying access to data segments in address space. The SEG subsystem works with transient segments (also referred to as scratch segments) that are created as offsets in a “well-known” file created during initialization of the PDE. The offsets are stored in objects/elements in a queue in the virtual address space of the SEG subsystem. Upon partitioning addressable memory into one or more scratch segments, obtaining the offsets for the scratch segments, and mapping the offsets into the SEG system's virtual address space, the physical memory is locked. When the scratch segments are needed, an element/object from the queue containing the appropriate size scratch segment is mapped into the requestor's address space.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: January 7, 2003
    Assignee: NCR Corporation
    Inventors: Sorana Rabinovici, Daniel H. Miller
  • Publication number: 20020182404
    Abstract: This composite uses the bonding of PVC to a variety of materials, from cloth to concrete, by the simple laying of the PVC surface to the other surface without the use of conventional wet, tacky, intermediate layer or layers of conventional adhesives. A simple preapplication of a chemical intermediate to the second surface in latex form and dried to a nontacky state is done. This is followed in any length of time thereafter with the simple contact of both surfaces, one to the other. A mild to aggressive tack bond, or a hard permanent joining of both surfaces is achieved. This bond is formed by the polar attraction of certain acrylics to the plasticizers in the PVC.
    Type: Application
    Filed: June 24, 2002
    Publication date: December 5, 2002
    Inventors: Edouard A. Brodeur, Henry Pete Coke
  • Publication number: 20020129890
    Abstract: A process for applying glue and brazing material to a honey-comb body includes coating structured metal sheets with adhesive or binder at given positions of zones of the metal sheets to be subsequently coated with brazing material and brazed. Subsequently, the metal sheets are layered or wound into a honeycomb body having a multiplicity of channels for the passage of a fluid. A continuously adhering brazing powder is applied to all of the given positions of the layered or wound body. Excess brazing powder is shaken or blown out of the body. A corresponding device includes a transport path for structured sheets and rotatable sponge-like rollers to be saturated with adhesive or binder. The rollers are disposed laterally alongside and/or above and/or below the transport path. The rollers are rotatable by a transport motion of the sheets or drive mechanisms are provided for rotating the rollers.
    Type: Application
    Filed: May 16, 2002
    Publication date: September 19, 2002
    Applicant: Emitec Gesellschaft fur Emissionstechnologie mbH
    Inventor: Wolfgang Staubwasser
  • Patent number: 6340089
    Abstract: A screening screen assembly for a vibratory screening machine including an apertured plate, and a subassembly of an undulating support screen and fine screening screen and finer screening screen bonded to each other by a fused plastic grid and bonded to the apertured plate. A method of fabricating a screening screen assembly for a vibratory screening machine including the steps of providing a support screen, superimposing a plastic grid onto the support screen, superimposing a finer screening screen onto the fine screening screen, applying heat and pressure to the superimposed screens to fuse the plastic grid and thereby form a flat bonded laminate subassembly by causing the fused plastic grid to permeate the fine screen and the finer screen and the support screen, forming the bonded laminate subassembly into an undulating shape, providing an apertured plate, and bonding the undulating bonded subassembly to the apertured plate.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: January 22, 2002
    Assignee: Derrick Manufacturing Corporation
    Inventor: John J. Bakula
  • Patent number: 6171427
    Abstract: A method and apparatus for producing a single face corrugated web in which a steam cloud is injected between the corrugated medium web and the liner web directly at the line along which the webs converge. This type of steam injection allows faster corrugator speeds without sacrificing bonding quality. An adhesive slurry of water and starch granules is applied to the flute tips to form glue lines on the corrugated web prior to the convergence of the webs. The injected steam cloud directed at the web convergence line adds heat without promoting premature dehydration to facilitate proper conditions for effective cooking of the adhesive slurry to thoroughly gelatinize the adhesive. In some applications, dry steam is preferred because dry steam does not significantly interfere with subsequent dehydration of the adhesive gel during the formation of the initial green bond.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: January 9, 2001
    Assignee: Marquip, Inc.
    Inventors: David W. Hess, Gale G. Hoyer, Carl R. Marschke, Keith R. Kornuth
  • Patent number: 6155319
    Abstract: A unit for joining paper sheets together in corrugated board manufacturing equipment comprises at least one toothed or corrugated roll (1), which is mounted in such a way as to rotate about its axis; means (5, 6) for feeding and pressing at least one flat paper sheet (C2), which interact with the toothed or corrugated roll (1) in laying said flat sheet (C2) over the corrugated paper sheet (C0) conveyed by said toothed or corrugated roll (1) and gluing means (4) which apply adhesive on one of the sheets. According to the invention, the means for feeding/pressing the flat paper sheet (C2) against the corrugated paper sheet (C0) on the toothed or corrugated roll (1) consists of a roll (6) which is mounted in such a way as to rotate about its axis and parallel to the toothed or corrugated roll (1) and which is made, at least at its periphery (106) of a layer of natural or synthetic fibers or compacted blends thereof, having a certain compressibility and/or deformability.
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: December 5, 2000
    Assignee: Agnati S.p.A.
    Inventors: Rossi Giugliano, Rossi Renato, Pompeo F. Lucca
  • Patent number: 6013149
    Abstract: A pad comprising a plurality of flexible sheets in a stack, and padding means for releasably adhering parts of the major surfaces of adjacent sheets in the stack together to maintain the sheets in the stack. That padding means is provided in that at least some of said sheets having patterns of coadhesive coated on their major surfaces, which patterns of coadhesive are adhered to patterns of coadhesive on adjacent sheets in the stack and releasably adhere parts of the major surfaces of adjacent sheets in the stack together in surface to surface relationship until the patterns of coadhesive are peeled apart.
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: January 11, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Lee A. Timmerman, Randall M. Mills, Michael S. Groess, Robert P. Molenda
  • Patent number: 5876552
    Abstract: A screening screen assembly for a vibratory screening machine including an apertured plate or frame, and a bonded subassembly of an undulating support screen and fine screening screen and finer screening screen bonded to each other by a fused plastic grid and bonded to the apertured plate or frame. A method of fabricating a screening screen assembly for a vibratory screening machine including the steps of providing a support screen, superimposing a plastic grid onto the support screen, superimposing a finer screening screen onto the fine screening screen, applying heat and pressure to the superimposed screens to fuse the plastic grid and thereby form a flat bonded laminate subassembly by causing the fused plastic grid to permeate the fine screen and the finer screen and the support screen, forming the bonded laminate subassembly into an undulating shape, providing an apertured plate or frame, and bonding the undulating bonded subassembly to the apertured plate or frame.
    Type: Grant
    Filed: October 21, 1997
    Date of Patent: March 2, 1999
    Assignee: Derrick Manufacturing Corporation
    Inventor: John J. Bakula
  • Patent number: 5870884
    Abstract: A multiple compartment package having a connecting bridge with a frangible internal barrier is made from two composite or thermoplastic sheets or webs welded together to form the front and back walls of the package, and the central bridge portion is defined by one or more partitions spanning the short distance between the webs. In the preferred embodiment, multiple partitions form a plurality of parallel compartment strips to create an obstruction to penetration of substances from one packet to the other. One process for making the invention uses a comb-shaped mask and a thermoplastic insert strip interwoven between the tines of the comb. The tines are extended down between the welding heads of the packaging machine, preventing welding from taking place between the thermoplastic sheets wherever the comb mash is, with the result that the welding occurs between the strip and an alternating one of the side webs creating a zig-zag pattern that forms the vacant barrier compartments.
    Type: Grant
    Filed: July 10, 1996
    Date of Patent: February 16, 1999
    Inventor: Brian R Pike
  • Patent number: 5683532
    Abstract: An active silica gel honeycomb adsorbing body capable of adsorbing humidity and odorous components in a process air having 100% relative humidity. A single-faced corrugated sheet having a wave length of approximately 2.5-6.5 mm and a wave height of approximately 1.3-4.0 mm, a quantity of active silica gel approximately 0.5-3.0 times the weight of inorganic fiber papers and a thickness of approximately 0.1-0.3 mm is laminated to form a honeycomb structure laminated body. The honeycomb structure laminated body is impregnated with an aqueous water glass solution, and is then impregnated with acid and dried to form active silica gel having micropores and mesopores. The micropores and the mesopores have a diameter distributed in the range of not more than 200 .ANG. and a surface area of approximately 300-600 m.sup.2 /g. The active silica gel is adhered in fiber gaps and on the surface of the inorganic fiber paper.
    Type: Grant
    Filed: June 30, 1995
    Date of Patent: November 4, 1997
    Assignee: Kabushiki Kaisha Seibu Giken
    Inventor: Toshimi Kuma
  • Patent number: 5423934
    Abstract: A method for producing a laminate structure from smooth and corrugated webs which may be used to form a corrugated or cellular contactor for the exchange of heat, moisture, and the like. The paper webs are saturated with a concentrated waterglass solution and partially dried. A first web is then corrugated after which the first and second webs are pressed together to form a laminate structure which is subsequently dried.
    Type: Grant
    Filed: December 17, 1993
    Date of Patent: June 13, 1995
    Assignee: AB Carl Munters
    Inventors: Hakan Vangbo, Roger Svensson
  • Patent number: 5417394
    Abstract: A fastening device for heating plates of a heating device of a corrugated board plant. Each heating plate is fastened on a form-stiff and fixed frame. The ends of the heating plates are supported by loose support devices. Thus, a flat heating surface for the strip of corrugated board guided over the heating surface is maintained even during a limited expansion of the heating plates due to the effect of heat.
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: May 23, 1995
    Assignee: BHS Corrugated Maschinen-- und Anlagenbau GmbH
    Inventors: Andreas Knorr, Uwe Panckow, Dietmar Blaschke, Helmut Kliesch, Richard Kohl, Hermann Fisser
  • Patent number: 5417793
    Abstract: A screening screen assembly for a vibratory screening machine including an apertured plate, and a bonded subassembly of an undulating support screen and fine screening screen and finer screening screen bonded to each other by a fused plastic grid and bonded to the apertured plate. A method of fabricating a screening screen assembly for a vibratory screening machine including the steps of providing a support screen, superimposing a plastic grid onto the support screen, superimposing a finer screening screen onto the fine screening screen, applying heat and pressure to the superimposed screens to fuse the plastic grid and thereby form a flat bonded laminate subassembly by causing the fused plastic grid to permeate the fine screen and the finer screen and the support screen, forming the bonded laminate subassembly into an undulating shape, providing an apertured plate, and bonding the undulating bonded subassembly to the apertured plate.
    Type: Grant
    Filed: August 11, 1994
    Date of Patent: May 23, 1995
    Assignee: Derrick Manufacturing Corporation
    Inventor: John J. Bakula
  • Patent number: 5254195
    Abstract: A process for preparing a moisture exchange element which comprises impregnating a substrate made of organic or inorganic fiber with an aqueous impregnating solution containing colloidal silica, an acid and a metallic cation; drying and gelatinizing the impregnating solution deposited on the impregnated substrate is disclosed. The absorbent formed on the substrate after the impregnating solution is dried has a pore size of about 60-70 .ANG., thus allowing the moisture exchange element of the present invention to provide improved moisture adsorbing/desorbing ability.
    Type: Grant
    Filed: May 8, 1992
    Date of Patent: October 19, 1993
    Assignee: Industrial Technology Research Institute
    Inventors: Pen C. Tseng, Yew K. Chuah, Chen U. Hwang, Shiao J. Chu, Han T. Chang, Chin S. Huang, Chang C. Chen, Po/Yu Chen
  • Patent number: 5093393
    Abstract: A starch-based corrugating adhesive providing a controlled rate of viscosity increase and green bond formation comprising water, starch, caustic alkali, an active boron source, and polyvinyl alcohol having an intermediate degree of hydrolysis (about 92% to 98%), wherein the polyvinyl alcohol constituent imparts a definite increase in the rate of viscosity building of the adhesive, the rate of viscosity increase being controlled to provide an effective green bond and final adhesive bond on a corrugated board surface.
    Type: Grant
    Filed: February 13, 1989
    Date of Patent: March 3, 1992
    Assignee: H. B. Fuller Company
    Inventors: John A. Faber, Paul L. Krankkala
  • Patent number: 5049216
    Abstract: The apparatus and method of the present invention provide means by which non-warped corrugated paperboard sheet may easily and consistently be produced. The cross-directional moisture content profiles of the top and bottom liners of the corrugated sheet are automatically monitored, and controlled with independently operable water jets such that the liners have approximately equal machine and cross-direction moisture content profiles. The moisture content profiles of the liners are controlled to equalize the machine direction and cross-directional stresses created within the liners as they dry out, thereby producing non-warped corrugated paperboard sheet.
    Type: Grant
    Filed: May 31, 1989
    Date of Patent: September 17, 1991
    Assignee: Measurex Corporation
    Inventors: Ray S. Shead, Leonard M. Anderson
  • Patent number: 5030305
    Abstract: A method of manufacturing thermoplastic structures wherein the structure comprises a fiber-reinforced thermoplastic resin. The fiber reinforcement may be in the form of a woven or non-woven web. The thermoplastic resin may be introduced therein in the form of staple fibers blended into the non-woven web or by melt-coating the web or by laminating a pre-formed thermoplastic resin film to the web. The latter technique allows uniform distribution of a radar-absorbing material, coated on or blended into the pre-formed thermoplastic film, throughout the honeycomb.
    Type: Grant
    Filed: August 9, 1990
    Date of Patent: July 9, 1991
    Inventor: Barry M. Fell
  • Patent number: 4911775
    Abstract: A dehumidifier element is produced by alternately laminating corrugated paper and flat liner paper, both papers being of low density and composed of inorganic fiber such as ceramic fiber, to form a honeycomb matrix having many small channels penetrating through opposite surfaces. The formed matrix is fired with hot air to remove organic substances contained in the sheets, or the sheets may be fired before the lamination. The matrix is impregnated with water glass after the laminating process, or the sheets are impregnated before the laminating process. In either case, the formed matrix is soaked in an aqueous solution of aluminum sulphate or magnesium sulphate to form a silicate hydrogel on the papers and in the apertures between fibers of the papers. The shaped matrix and the metal silicate hydrogel are washed and dried to obtain a dehumidifying element having physical strength. The metal sulphate solution is cooled to precipitate and remove sodium sulphate from the solution.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: March 27, 1990
    Assignee: Kabushiki Kaisha Seibu Giken
    Inventors: Tosimi Kuma, Hiroshi Okano
  • Patent number: 4886769
    Abstract: An element for adsorbing one or more active gases in an inert gas to obtain an inert gas such as air containing an inert gas such as air containing an ultra-low concentration active gas such as water vapor. The element is produced by laminating low density papers composed of inorganic fiber to form a matrix in the form of a gas adsorbing element having numerous small channels penetrating through opposite surfaces, impregnating the matrix with water glass in which synthesized zeolite powder is dispersed, and soaking the matrix in aqueous solution of aluminum salts, magnesium salts or calcium salts, and so on, to form metal silicate hydrogel on the paper and in the apertures between fibers of papers, and washing and drying the matrix and the metal silicate hydrogel to obtain the element. The main constituent of the element being synthesized zeolite and metal silicate aerogel deposited on the inorganic fiber matrix.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: December 12, 1989
    Assignee: Kabushiki Kaisha Seibu Giken
    Inventors: Tosimi Kuma, Hiroshi Okano
  • Patent number: 4874457
    Abstract: An apparatus for corrugating a flexible web containing heat softenable fibers comprising two pairs of endless drive chains with paddles mounted to each pair of chains to extend radially outward therefrom. The web is introduced onto the paddles at a point where the paddles are fanned out by passage of the paddles about the arcuate end of the endless chains. The web is folded between the paddles as the separation between the paddles is closed when the paddles move from the arcuate to the straight portion of the endless chains. Heating means soften and bond fibers of adjacent folds of the web together prior to removal of the corrugated web from the paddles.
    Type: Grant
    Filed: April 21, 1988
    Date of Patent: October 17, 1989
    Assignee: McNeil-PC, Inc.
    Inventor: Morris K. Swieringa
  • Patent number: 4871406
    Abstract: A corrugated paperboard, manufactured with a layer of plastic film approximately 1-3 mil thickness, is laminated to the single face liner of single face board in the double-backer. The board has good moisture vapor transmission (MVT) properties for packaging food and chemical products. The film is supplied in roll form and reeved over a dewrinkling roll device to smooth it, then fed onto the single face liner as the single face corrugated is fed into the nip of the double-backer. The lamination of the film is made by the residual heat from the paper and pressure of the double-backer belt in the drying section of the corrugator without adding adhesives or other compounds. The film is a thermoplastic co-extruded polymeric film, e.g. high density polyethylene (HDPE), polypropylene, PET, having a heat seal layer thereon of a copolymer of olefin with Alpha-Beta monoethylenically unsaturated monomer, e.g., ethylene acrylic acid (EAA).
    Type: Grant
    Filed: March 16, 1988
    Date of Patent: October 3, 1989
    Assignee: Nekoosa Packaging Corporation
    Inventor: Edwin D. Griffith
  • Patent number: 4765855
    Abstract: The invention is primarily concerned with a sandwich material (55) made of sheets based on paper. This material is substantially comprised of a sheet (42) of corrugated paper (44) forming one or several layers. An intermediate paper sheet (31) is bonded to the corrugations of the sheet 42. A film (29) of a thermoplastic compound adheres physically as the result of an extrusion to the outer side of the intermediate paper sheet (31).The process for manufacturing this material consists firstly in extruding a film (29) of thermoplastic compound on the intermediate paper sheet (31), and then in bonding the web (27) of protective layer thus obtained on the corrugations of the sheet of corrugated paper (42).The invention is remarkable in that these operations are carried out on a standard machine for manufacturing corrugated paperboard.
    Type: Grant
    Filed: September 9, 1985
    Date of Patent: August 23, 1988
    Assignee: I. T. I. Enterprises Ltd.
    Inventors: Vincent Geoffroy-Dechaume, Francois De Capele
  • Patent number: 4655870
    Abstract: Disclosed herein is a method for glueing corrugated board and an apparatus for carrying out the same, the method comprising: heating a starch glue to a predetermined temperature range by heat exchange; supplying the starch glue to a glue pan placed in a hot atmosphere of a heat-insulated space so as to maintain the glue in a heated state; feeding a corrugated core sheet and a liner into the heat-insulated space; applying the heated starch glue to ridge portions of the corrugated core sheet; and bonding together the corrugated core sheet and liner.
    Type: Grant
    Filed: February 20, 1985
    Date of Patent: April 7, 1987
    Assignee: Isowa Industry Company, Ltd.
    Inventors: Kazuo Mori, Eiichi Isowa
  • Patent number: 4617076
    Abstract: Back pressure against a single-faced, corrugated web opposite of a flute tip glue applicator roll is provided by a transversely extending air bearing. Air bearing fluid flow is derived from an air distributor manifold that is secured for adjustable positionment relative to the web surface.
    Type: Grant
    Filed: September 17, 1984
    Date of Patent: October 14, 1986
    Assignee: Westvaco Corporation
    Inventors: Thomas B. Jones, Jr., Willem A. Nikkel
  • Patent number: 4603654
    Abstract: Disclosed herein is a glue applicator for a corrugator machine in which a starch glue in a glue pan is applied to ridge portions of a corrugated core sheet by an applicator roll, the applicator comprising: a stock tank holding a stock of starch glue; a glue heater having a couple of upper and lower glue pooling chambers for reserving the starch glue supplied from the stock tank, a heat medium chamber defined between the upper and lower pooling chamber and holding a heat medium, a plural number of heat exchange pipes inserted vertically across the heat medium chamber in contact with said heat medium and communicating at the upper and lower ends with the upper and lower pooling chambers to permit flows of the starch glue between the upper and lower pooling chambers, and a steam blow pipe opened into a bottom portion of the heat medium chamber for blowing steam thereinto; and a glue feed pipe connecting the upper pooling chamber of the glue heater to the glue pan.
    Type: Grant
    Filed: February 20, 1985
    Date of Patent: August 5, 1986
    Assignee: Isowa Industry Company, Ltd.
    Inventors: Kazuo Mori, Eiichi Isowa
  • Patent number: 4560429
    Abstract: Moisture-resistant packing cardboard of the corrugated type is prepared from flat paper sheets formed from 10% to 90% by weight of cellulose fibers and from 90% to 10% by weight of fibrils of at least one thermoplastic polymer and having a surface area greater than 1.0 m.sup.2 /gm, by heating the sheets under pressure on an undulated surface and coupling the resulting corrugated or undulated sheets with one or more flat sheets to which the corrugated sheet is adhered through the tips of the corrugations or undulations.
    Type: Grant
    Filed: August 14, 1979
    Date of Patent: December 24, 1985
    Assignee: Montedison S.p.A.
    Inventors: Lino Credali, Paolo Parrini, Mario Milano, Domenico Lori
  • Patent number: 4419173
    Abstract: Disclosed is an improved method of producing corrugated cardboards, in which water suspension of raw starch is used as an adhesive. The raw starch is, after application thereof, heated to form gell or paste with dry steam prepared by reheating low-pressure steam with high-pressure steam. Also, disclosed is an apparatus for practicing the improved method.
    Type: Grant
    Filed: July 22, 1981
    Date of Patent: December 6, 1983
    Assignee: K-Three Products Kabushiki Kaisha
    Inventors: Toshimitsu Akiyama, Tadashi Kasamatsu
  • Patent number: 4132581
    Abstract: Method and machine for fabricating plasticboard wherein areas of bonding are created with localized heating and pressure.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: January 2, 1979
    Assignee: Standard Oil Company (Indiana)
    Inventor: Henry D. Swartz
  • Patent number: 4126502
    Abstract: Pharmaceutical dosage forms comprising an edible web having deposited thereon or at least partially thereon a particulate medicament, the webs being thereafter fabricated and finished to pharmaceutically elegant solid dosage forms having no medicament exposed on an exterior surface. The dosage forms have a consistency of release of medicament which can be controlled to exacting specifications. The disclosed solid dosage forms are prepared by high speed automated equipment and the process by which they are made is characterized by non-destructive quality control analysis and performance evaluation both conducted on-line and integrated into the manufacturing operation. Included in the scope of the disclosed invention are certain apparatus and methods of manufacture.
    Type: Grant
    Filed: April 29, 1977
    Date of Patent: November 21, 1978
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Dennis J. Dabal, Joseph J. Williams
  • Patent number: 4126503
    Abstract: Pharmaceutical dosage forms comprising an edible web having deposited thereon or at least partially thereon a particulate medicament, the webs being thereafter fabricated and finished to pharmaceutically elegant solid dosage forms having no medicament exposed on an exterior surface. The dosage forms have a consistency of release of medicament which can be controlled to exacting specifications. The disclosed solid dosage forms are prepared by high speed automated equipment and the process by which they are made is characterized by non-destructive quality control analysis and performance evaluation both conducted on-line and integrated into the manufacturing operation. Included in the scope of the disclosed invention are certain apparatus and methods of manufacture.
    Type: Grant
    Filed: April 29, 1977
    Date of Patent: November 21, 1978
    Assignee: Hoffmann-La Roche Inc.
    Inventor: William E. Gardner
  • Patent number: RE29272
    Abstract: A water resistant corrugated paperboard material is prepared wherein the paperboard components (medium and liner or liners) are each coated on both sides with a thermoplastic film which acts as a water barrier and a water resistant adhesive for bonding the components together. The corrugated medium is also pretreated with an internal size treatment to prevent edge wicking, and, for the purpose of corrugating the medium without deleteriously affecting the thermoplastic film, the corrugating rolls are preheated to a temperature slightly less than the melting point of the thermoplastic film while a lubricating material is simultaneously applied to either the corrugating rolls or the medium at the corrugating nip.
    Type: Grant
    Filed: June 7, 1976
    Date of Patent: June 21, 1977
    Assignee: Westvaco Corporation
    Inventors: Harold L. Hintz, Joseph T. Webb