External Patents (Class 34/110)
  • Patent number: 10179974
    Abstract: A method for manufacturing a large-cylinder drying roller includes providing a cylindrical cylinder shell having two sides, initially attaching a respective cap to each of the sides of the cylinder shell, subsequently inserting an inner shaft coaxially within the cylinder shell and connecting the inner shaft to the caps and connecting journals to the inner shaft. The inner shaft is divided into two inner-shaft parts. Each inner-shaft part is inserted from a respective side and then each of the inner-shaft parts is connected to the other of the inner-shaft parts and to a respective one of the caps and/or prior to inserting the inner shaft, the cylinder shell and the caps are relieved of stress and the connection of the cylinder shell and the caps is checked from the inside or the cylinder shell and/or the caps are mechanically processed together.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: January 15, 2019
    Assignee: Voith Patent GmbH
    Inventors: Christian Schmid, Robson Consolato, Marco Brujas
  • Patent number: 9562324
    Abstract: A turbulence bar assembly for a cylinder that extends in an axial direction includes a plurality of bars that extend in the axial direction and at least one hoop. The at least one hoop has one or more hoop segments that are connected to the plurality of bars and one or more couplers that are in engagement with the one or more hoop segments to expand and contract a radial dimension of the at least one hoop in response to movement of an adjustment block in the axial direction.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: February 7, 2017
    Inventors: Gregory L. Wedel, Alan T. Ives, Timothy N. Henry
  • Patent number: 9403243
    Abstract: The invention relates to a process for manufacturing a steel Yankee cylinder (1), where the Yankee cylinder (1) is welded together from individual pre- or finish-machined cylinder sections (8, 9, 10). The invention also relates to a Yankee cylinder (1) that is manufactured using the manufacturing process according to the invention.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: August 2, 2016
    Assignee: Andritz AG
    Inventors: Josef Krasser, Markus Maier, Ludwig Kahsiovsky
  • Patent number: 9371609
    Abstract: Dryer appliances and methods for operating dryer appliances are provided. A method includes flowing internal air from a drum chamber through a vent duct of the dryer appliance, selectively actuating a valve to flow external air through the vent duct from external to a cabinet of the dryer appliance, and alternately sensing humidity values of the internal air and the external air.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: June 21, 2016
    Assignee: General Electric Company
    Inventors: Timothy Lee Anderson, Alisa Marie Dickerson, Lois Haeun Kwon
  • Patent number: 8779336
    Abstract: A ring type infrared heating device is used in manufacturing process for corrugated cardboard so that the paper surface passing through the heating device can be heated up to appropriate temperature for subsequent shaping operation. The ring type infrared heating device is mainly formed by a lengthwise drum and a plurality of ring type infrared lamps arranged within the lengthwise drum. The surface of the lengthwise drum can be heated quickly up to working temperature by the light radiation energy generated from the ring type infrared lamps, so as to facilitate the shaping operation of corrugated cardboard.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: July 15, 2014
    Inventor: Hung-Wei Hung
  • Publication number: 20140150280
    Abstract: Productivity-boosting innovations in drying machines used for drying carpets, mats and the like are provided. The innovations allow the chine to operate more quietly, to be lighter and to be used, in accordance with the intended use, more efficiently and for a longer period of time with less energy consumption by preventing its parts from getting heated. An internal drum which is embedded in the front and back frame by the inner drum shaft and roller and which is moved by the motor is made of composite material. An external drum coats the internal drum externally and allows the machine to work more quietly thanks to its isolation. A fan is provided for decreasing the temperature of the roller of the machine while it is operating.
    Type: Application
    Filed: May 1, 2013
    Publication date: June 5, 2014
    Applicant: GFS Makina San. VE TIC. LTD. STI.
    Inventors: Ali Kamil GORAL, Hayri DOGRU, Haldun Zeki SEVER
  • Publication number: 20140068961
    Abstract: The invention relates to a Yankee dryer (1) made of steel with a cylindrical steel shell (2) that is closed off at each end by a cylinder end cover (3, 4). According to the invention the Yankee dryer (1) has a one-piece central shaft (7) with a first and a second connecting flange (8, 9) to join the central shaft (7) to the end covers (3, 4), where the diameter of the first connecting flange (8) is smaller than the diameter of the opening (6) in the second end cover (4) so that the central shaft (7) can be pushed through this opening (6) into the Yankee cylinder (1). The invention also refers to a manufacturing process for a Yankee dryer (1).
    Type: Application
    Filed: May 6, 2011
    Publication date: March 13, 2014
    Inventors: Jörg Bauböck, Gernot Tropper
  • Publication number: 20110314688
    Abstract: A drum-type drying device according to the invention includes a cylindrical drum section that is rotatably supported and rotated by winding a base material on the drum section, engaging portions that are disposed in an inner cavity of the drum section, and a heating section that includes engaged portions detachably engaged with the engaging portions.
    Type: Application
    Filed: June 22, 2011
    Publication date: December 29, 2011
    Inventors: Hideo IZAWA, Takao NAMIKI, Yuuichi YAMAZAKI
  • Publication number: 20110067257
    Abstract: A Yankee dryer which exploits centrifugal forces to assist in evacuating condensate. A condensate collection system has individual pickup straws arranged at an angle such that the required amount of motive steam pressure is reduced to extract and move the steam condensate from the intake opening of the straw to the discharge point of that straw. The pickup straws communicate with a collection header arranged along the length of the Yankee dryer. The collection header is configured such that it has a radius from the axis of rotation which is greatest near the point at which collected condensate is discharged to a disposal riser conduit which conducts collected condensate to the exterior of the Yankee dryer.
    Type: Application
    Filed: September 21, 2009
    Publication date: March 24, 2011
    Inventor: Richard Fearnside
  • Patent number: 7802377
    Abstract: The invention relates to a drying cylinder which is used to dry a paper, cardboard, tissue or other web of fibrous material in a machine for the production and/or for the transformation thereof. The drying cylinder includes a support body and an external cover layer which is heated by a hot fluid. The thermal flow passing through the external cover layer is increased such that at least one cavity is provided between the support body and the external cover layer through which the fluid flows. The external cover layer is predominately so thin that the ratio formed by the thermal conductivity of the material and the thickness of the external cover layer is greater than a threshold value of 3.2 kW/m2K for steel, 30 kW/m2K for aluminum, 18 kW/m2K for bronze alloys, 3.4 kW/m2K for copper and 6.1 kW/m2K for magnesium.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: September 28, 2010
    Assignee: Voith Patent GmbH
    Inventors: Rainer Kloibhofer, Christoph Haase, Thomas Gruber-Nadlinger, Herbert Boden, Erich Rollenitz, Manfred Gloser
  • Publication number: 20100209578
    Abstract: An apparatus for making food chips, comprises a source of heat, and a conveyer belt arranged such that, when in use, food chips are held between the belt and the heat source at least a part of the path of the belt, and wherein the belt is steam permeable. Also, a method for making food chips comprising feeding sliced mono layered food between a steam permeable conveyer belt and a heat source and guiding steam from the food through the steam permeable belt.
    Type: Application
    Filed: March 9, 2010
    Publication date: August 19, 2010
    Inventor: Anders Fredlund
  • Publication number: 20100050461
    Abstract: A drying and smoothing apparatus for a machine which produces or processes a layer of material, specifically for machines that produce or process paper, cardboard or tissue, the drying and smoothing apparatus including a heated drying and smoothing cylinder having a curved external surface, the drying and smoothing cylinder configured to rotate, a pressurizing jacket encasing a portion of a curved external surface of the drying cylinder to form a pressure zone, a plurality of stacked sealing assemblies configured to seal the pressure zone from an ambient, the plurality of stacked sealing assemblies being supported on a first end and a second end of the curved surface of the drying and smoothing cylinder, wherein each of the plurality of stacked sealing assemblies include at least three seals, the seals pressed inward against the curved external surface of the drying and smoothing cylinder and stacked in sequence axially outward from the pressure zone to the ambient.
    Type: Application
    Filed: October 19, 2009
    Publication date: March 4, 2010
    Inventors: Robert Attwenger, Herbert Boden, Rainer Kloibhofer
  • Patent number: 7404875
    Abstract: A modified creping adhesive composition, comprising an adhesive component and at least one terpene modifier, and its use in the production of creped paper products by a process which includes the steps of adhering a paper web to the surface of a drying cylinder and separating the paper web from the drying cylinder with a creping blade.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: July 29, 2008
    Assignee: Georgia-Pacific Consumer Products LP
    Inventors: Nancy Clungeon, Jeffrey J. Boettcher
  • Patent number: 6877979
    Abstract: A method for heating flat or curved surfaces comprising injecting fuel and oxidant along the length, width or longitudinal side of a combustion space formed between two flat or curved plates, transferring heat from the combustion products via convection and radiation to the surface being heated on to the material being dried/heated, and recirculating at least 20% of the combustion products to the root of the flame.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: April 12, 2005
    Assignee: Gas Technology Institute
    Inventors: Hamid Ali Abbasi, Yaroslav Chudnovsky
  • Patent number: 6767454
    Abstract: Apparatus for the treatment of a wiping solution, which includes ink flocculation apparatus for flocculating ink contained in a used wiping solution by the addition of a flocculant to the used wiping solution; solid-liquid separation apparatus for separating, into sludge and a filtrate, the used wiping solution containing the ink which is flocculated by the ink flocculation apparatus through filtration of the used wiping solution; distilled water production apparatus for producing distilled water and a concentrated solution through heating of the filtrate which is separated by the solid-liquid separation apparatus; water recycling apparatus for recycling the distilled water which is produced by the distilled water production apparatus as a raw material of a wiping solution; and post treatment apparatus for separating the concentrated solution into steam and a solid residue through heating of the concentrated solution which is produced by the distilled water production apparatus.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: July 27, 2004
    Assignee: Komori Corporation
    Inventor: Nobuyoshi Shinoda
  • Publication number: 20040118009
    Abstract: An apparatus for drying a travelling wet fibrous web is provided which comprises a rotating air-permeable drum. The drum is at least partially surrounded by a hood which has an interior space for receiving a flow of air and directing the flow of air through a permeable inner wall towards the outer surface of the drum. At least a portion of the hood is divided into individual sections in a cross-machine direction. Apparatus is provided for supplying a flow of drying air at a first temperature to the hood, and for supplying profiling air at a selected different temperature different from the first temperature to at least one of the individual sections.
    Type: Application
    Filed: December 20, 2002
    Publication date: June 24, 2004
    Applicant: Metso Paper USA, Inc.
    Inventor: Laurent R. Parent
  • Patent number: 6560893
    Abstract: A rotary cylinder for heat-treating a web bearing against its outer surface is heated by an internal stationary assembly of IR burner modules that heat lengthwise distributed annular bands of the cylinder, the burners having air-fuel mixture supplies that are regulated by cross-machine sensing of the web for controlling the web's cross-machine profile characteristics, the cylinder being part of a machine comprising a succession of like IR-burner-heated cylinders operated at respective optimal temperatures. The assembly of IR burners is removable from an end of its cylinder for service or modification. The interior of the stationary IR burner structure is protected against undue heat build-up.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: May 13, 2003
    Inventor: Sharon F. Bakalar
  • Patent number: 6547932
    Abstract: The invention relates to a doctor apparatus (10) in connection with a roll (T) in a paper or board machine. The doctor apparatus (10) comprises a doctor beam (12) of lightweight construction and that the doctor beam (12) is arranged to pivot on bearing means (13a1, 13a2 . . . ) (pivot movement arrow L1). In connection with the doctor beam there are loading members (14a1, 14a2), a relative linear movement taking place between the loading members (14a1, 14a2) and backup surfaces (12′, 15a′) when the doctor beam (12) is being oscillated.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: April 15, 2003
    Assignee: Metso Paper, Inc.
    Inventors: Antti Leinonen, Jouni Heiskanen, Kari Paloniemi, Kari Lamminmäki, Ilkka Rata, Ilkka Eskelinen, Samppa J. Salminen, Aimo Närväinen, Pentti Luoma, Jukka Samppala, Mika Saari, Reijo Hassinen
  • Patent number: 6523279
    Abstract: Roll and drying section of a machine for producing a material web and process for drying a material web. The roll includes a jacket having a plurality of throughput openings, a device for supplying gas through the jacket, and a second jacket located within the jacket being arranged to form a ring chamber with the jacket. The second jacket is gas tight to seal the ring chamber in a gas-tight manner from an interior of the second jacket.
    Type: Grant
    Filed: September 12, 2001
    Date of Patent: February 25, 2003
    Assignee: Voith Paper Patent GmbH
    Inventor: Georg Kugler
  • Patent number: 6442868
    Abstract: A drying cylinder for drying a fibrous web, the cylinder having an inner chamber connected to a pressurized air source; and an outer cylinder jacket having an air-permeable region which is adapted to contact the fibrous material web. Also a drying section for drying a fibrous web, including at least one drying cylinder having an inner chamber and an outer cylinder jacket having an air-permeable region; a circulating belt arranged to press the fibrous web against the outer cylinder jacket and belt being arranged to partially wrap around the drying cylinder; and a pressurized air source connected to the inner chamber is described.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: September 3, 2002
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Robert Wolf, Markus Oechsle, Wolfgang Mayer, Thomas Mack, Roland Mayer
  • Patent number: 5891309
    Abstract: A web support foil positioned adjacent to a Yankee dryer above a creping doctor. The foil supports the web as it leaves the dryer. Mounted to the top of the foil is an adjustable air deflector which is positioned tangent to the Yankee dryer. The air deflector blocks air moving along the web. A slotted opening draws air from a leading-edge pocket collecting fibers which are broken loose during the creping action. The web is held against the bottom side of the foil by one or more air jets which are directed over the bottom surface on the foil. The jets of air function as coanda air jets and prevent the web from sticking to the bottom surface of the foil while creating a Bernoulli effect which holds the web against the bottom of the foil.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: April 6, 1999
    Assignee: Beloit Technologies, Inc.
    Inventors: Robert E. Page, Gerald J. Kramer, Dale A. Brown, David A. Smith
  • Patent number: 5791065
    Abstract: A drying cylinder comprises a cylindrical shell with head members at either end and is mounted for rotation about its central longitudinal axis. A gas fired burner assembly is mounted in the interior of the cylinder and comprises a plurality of burner segments which transmit heat to the shell by infrared radiation. The heat output of the burner segments are controllable as an assembly in unison or individually.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: August 11, 1998
    Assignee: Asea Brown Boveri, Inc.
    Inventors: David Gamble, Ian Gerald Lang
  • Patent number: 5776855
    Abstract: The invention relates to a new solid storage and marketing presentation for phytosanitary compositions based on any active substance which is little soluble in water or insoluble in water and solid at ambient temperature; these active substances are especially selected from herbicides presenting the said features; these herbicides comprise bramoxynil, ioxynil and their esters as well as. dinitroanilines, especially butralin, pendimethalin, flumetralin and oryzalin.It is in the form of flakes based on a film-forming material which is water-soluble and brittle after drying, and throughout which are dispersed especially the particles of active material.This solid storage and marketing presentation may be prepared by maly of an installation comprising a rotating drying drum (1) on which a thin layer of a dispersion (D) of particles of active substance in an aqueous solution of a film-forming material which is brittle at the dry state is applied.
    Type: Grant
    Filed: July 10, 1996
    Date of Patent: July 7, 1998
    Assignee: CFPI AGRO
    Inventors: Joseph Schapira, Jacques Vincent, Ange-Claude Guerin, Jean-Paul Fournials
  • Patent number: 5571223
    Abstract: A roller apparatus (23) for use in the drying section of an apparatus for producing corrugated board comprises a tubular body operative to be received over a metal roller. The wall of the tubular body comprises an inner layer (24) of relatively hard polyurethane and an outer layer (25) of a deformable polyurethane. A spiral winding of yarn (26) is wrapped around the inner layer (24).
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: November 5, 1996
    Assignee: Scapa Group PLC
    Inventor: Walter Dudovicz
  • Patent number: 5564196
    Abstract: A roll used for tensioning a canvas belt used to hold paper against a dryer. The roll includes a main cylindrical body formed of steel. A layer formed of a metal harder than steel is disposed over the outer surface of the main body. The metal layer is formed with a channel around its center so as to define two spaced roll end sections of a common diameter. A fluororesin layer is disposed in the metal layer channel and is shaped so as to have an outer surface of a diameter equal to that of the metal layer end sections.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: October 15, 1996
    Assignee: Nomura Techno Research Kabushiki Kaisha
    Inventors: Hirotoshi Nomura, Keiji Nakayama, Yasushi Kitamura, Hajime Miwa, Tokumi Ikeda
  • Patent number: 5553391
    Abstract: The disclosed cylinder for heat-treating a web is rotatable about a horizontal axis and is heated by one or multiple stationary infrared burners that extend all along the length of the cylinder, but which are limited to an arcuate extent, establishing a maximum cylinder heat output when the burner(s) is (are) supplied with air-fuel mixture at their maximum rate. Reduction of the air-fuel supply rate over a wide range allows the cylinder heat output to be reduced as the web processing speed is reduced. When the burner is divided into segments, the temperature profile along the cylinder; i.e., across the width of the web, can be regulated to adjust the moisture profile of the web. An exhaust manifold within and along the cylinder is configured so as to avoid any local accumulation of high-temperature exhaust.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: September 10, 1996
    Inventor: Sharon F. Bakalar
  • Patent number: 5454939
    Abstract: A wastewater treatment device evaporates water from contaminant containing wastewater, to produce a contaminant concentrated residue. The device includes a transport, such as pump, for transporting wastewater to a wastewater applicator, and a wastewater applicator for applying the wastewater to an evaporating surface of an evaporator drum. A rotatable evaporator drum has a heat conductive evaporating surface, and a heater for heating the evaporating surface to foster the evaporation of water from the wastewater. A motor, chain and drive shaft are provided for rotating the evaporator drum, and a scraper is provided for removing the contaminant concentrated residue from the evaporating surface. A controller is provided for controlling the operation of the device.
    Type: Grant
    Filed: January 18, 1994
    Date of Patent: October 3, 1995
    Assignee: Monitrol, Inc.
    Inventor: Howard O. Meuche
  • Patent number: 5353521
    Abstract: The present invention is directed to a method and apparatus for drying a web of paper utilizing impulse drying techniques. In the method of the invention for drying a paper web, the paper web is transported through a pair of rolls wherein at least one of the rolls has been heated to an elevated temperature. The heated roll is provided with a surface having a low thermal diffusivity of less than about 1.times.10.sup.-6 m.sup.2 /s. The surface material of the roll is preferably prepared from a material selected from the group consisting of ceramics, polymers, glass, inorganic plastics, composite materials and cermets. The heated roll may be constructed entirely from the material having a low thermal diffusivity or the roll may be formed from metal, such as steel or aluminum, or other suitable material which is provided with a surface layer of a material having a low thermal diffusivity.
    Type: Grant
    Filed: September 12, 1991
    Date of Patent: October 11, 1994
    Assignee: Institute of Paper Science and Technology, Inc.
    Inventor: David I. Orloff
  • Patent number: 5327661
    Abstract: The present invention is directed generally to a method and apparatus for drying a web of paper utilizing impulse drying techniques to provide a unique paper product having a predetermined pattern of delaminated paper fibers. In the method of the invention for drying a paper web, the paper web is transported through a pair of rolls wherein at least one of the rolls has been heated to an elevated temperature. The heated roll is provided with a planar surface having a predetermined pattern formed on the surface of a material having a low K value of less than about 3000 w.sqroot.s/m.sup.2 c and having a relatively low porosity. The material forming the predetermined pattern of the roll surface is preferably selected from the group consisting of ceramics, polymers, glass, inorganic plastics, composite materials and cermets. The remainder of the roll surface has a high K value of greater than about 3000.
    Type: Grant
    Filed: May 20, 1991
    Date of Patent: July 12, 1994
    Assignee: Institute of Paper Science and Technology, Inc.
    Inventor: David I. Orloff
  • Patent number: 5272821
    Abstract: The present invention is directed to a method and apparatus for drying a web of paper utilizing impulse drying techniques. In the method of the invention for drying a paper web, the paper web is transported through a pair of rolls wherein at least one of the rolls has been heated to an elevated temperature. The heated roll is provided with a surface having a low K value of less than about 3000 w.sqroot.s/m.sup.2 c and having a low porosity. The surface material of the roll is preferably prepared from a material selected from the group consisting of ceramics, polymers, glass, inorganic plastics, composite materials and cermets. The heated roll may be constructed entirely from the material having a low K value or the roll may be formed from metal, such as steel or aluminum, or other suitable material which is provided with a surface layer of a material having a low K value.
    Type: Grant
    Filed: January 18, 1991
    Date of Patent: December 28, 1993
    Assignee: Institute of Paper Science and Technology, Inc.
    Inventors: David I. Orloff, William J. Lenling
  • Patent number: 5235758
    Abstract: A device for force-drying an instrumented, multi-strand cable such as a seismic marine cable, consists of a reel having a slotted core around which the carcass of a cable is wrapped. A source of warmed, dehumidified air is blown into the interior of the core. The air circulates through the slots in the core, to circulate through the wraps of the cable, thereby to dry the cable carcass.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: August 17, 1993
    Inventor: W. B. Leonard
  • Patent number: 5188788
    Abstract: A process for producing cellulose triacetate films that is capable of not only suppressing the growth of foreign matter on transport rollers, but also markedly reducing the necessary number of cleaning operations. The process includes steps of casting a solution of cellulose triacetate onto a support having it surface cooled at 20.degree. C. or below, drying and cooling the solution cast onto the support to solidify the cast solution, separating the subsequently solidified film from the support, and transporting the film while it dries on transport rollers. In accordance with the invention, for a weight proportion of the solvents in the film as separated from the support of at least 40 wt %, the surface of the transport rollers is made of a material having a surface energy of no more than 80 dynes/cm at 20.degree. C.
    Type: Grant
    Filed: July 26, 1991
    Date of Patent: February 23, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yuji Suzuki, Takeshi Yamazaki
  • Patent number: 5121560
    Abstract: An apparatus and method are disclosed for continuously cooling a hot printed traveling web in order to set the ink thereon. The apparatus and method include a frame and a chill roll rotatably mounted thereon having a peripheral surface. A pressure roll is rotatably mounted on the frame and has a pressure applying surface in contact with the chill roll peripheral surface to define a web receiving nip. The printed web is passed into the nip. Liquid coolant is applied to the peripheral surface of the pressure roll prior to its entering the web nip during which time the pressure roll is cooled. A metering roll is rotatably mounted on the frame to place its peripheral surface in contact with the pressure applying surface to define a metering nip. The pressure in the metering nip is adjusted so that only a predetermined amount of coolant liquid remains on the pressure roll peripheral surface for contact with the web.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: June 16, 1992
    Assignee: Advance Systems, Inc.
    Inventors: Robert A. Daane, Ralph W. Creapo
  • Patent number: 5074055
    Abstract: The invention concerns equipment for drying of a web material (1) or for equalization of its moisture content by means of induction heating. The web is passed between the rolls in two or more pairs of rolls (2,3; 4,5; 6,7). High-frequency energy is passed to one of the rolls (2,4,6) in the pairs of rolls by means of a capacitive energy transfer member. One of the electrodes in this capacitive energy transfer member consists of the mantle of the roll (2,4,6) concerned. As the other electrode, a trough unit (8,9,10) which surrounds a part of the roll mantle is arranged. Alternatively, the trough unit may be substituted for by a rod electrode, which may be placed outside or inside the roll.
    Type: Grant
    Filed: April 9, 1990
    Date of Patent: December 24, 1991
    Assignee: Imatran Voima Oy
    Inventors: Markku Peraniitty, Kauko Kotikangas
  • Patent number: 4955268
    Abstract: The apparatus comprises a work surface heated by a heat carrier medium and located upon a heat-conducting layer carried by a metallic base body. The base body is provided with grooves at its surface confronting the heat-conducting layer and/or this heat-conducting layer is provided at its surface confronting the base body with grooves. The work surface is heated by infeeding the heat carrier medium into the grooves. To influence heat transfer to the heat-conducting layer carrying the work surface, particularly to a sheet metal plating or the like, for instance a cylinder jacket seated in direct metallic contact or only through the intermediate disposition of a transition layer of good thermal conductivity, upon the base body, there are provided control means regulating heat conduction from the base body to the heat-conducting layer and/or from the heat carrier medium guided in the grooves to the base body or the heat-conducting layer.
    Type: Grant
    Filed: June 13, 1988
    Date of Patent: September 11, 1990
    Assignee: Sulzer-Escher Wyss GmbH
    Inventors: Georg Ickinger, Willibald Fermuller, Anton Paugger, Reinhard Pinter
  • Patent number: 4888095
    Abstract: The invention is directed to a method for extracting water from a paper web in a paper making machine using a ceramic foam component. The component includes a supporting structure and a water permeable member is mounted on the supporting structure and is adapted to support a paper web. The water permeable member comprises a rigid mass of ceramic foam having a plurality of interconnected cells. The ceramic foam has an air permeability in the range of 10 to 1,000 cubic feet per square foot of surface area per minute and has a density of 5 to 100 lbs/cubic foot. When a pressure differential is applied to the permeable member to the paper web, moisture will be extracted from the web and passes through the permeable member.
    Type: Grant
    Filed: May 25, 1989
    Date of Patent: December 19, 1989
    Assignee: Appleton Mills
    Inventors: Thomas G. Gulya, Gary V. Schultz, Ronald A. Arnold
  • Patent number: 4878299
    Abstract: An insulating apparatus is disclosed for thermally insulating a dryer head journalled in a dryer section of a papermaking machine. The apparatus includes a stationary insulator having a disc-shaped configuration. The insulator defines a central bore for the rotatable reception therein of the journal. A peripheral seal extends circumferentially around the insulator for inhibiting the flow of convection currents past the periphery of the insulator thereby reducing thermal losses through the head.
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: November 7, 1989
    Assignee: Beloit Corporation
    Inventor: Gregory L. Wedel
  • Patent number: 4831745
    Abstract: A method of reducing residual moisture on caster rolls resulting from the application of a water based release agent or lubricant comprises placing a controllable heat source in close proximity to the top and bottom roll of the caster to evaporate the residual moisture from the roll surface.
    Type: Grant
    Filed: November 25, 1987
    Date of Patent: May 23, 1989
    Assignee: Norandal USA, Inc.
    Inventors: William H. Brooks, Weldon C. Ball, John A. Clark
  • Patent number: 4677761
    Abstract: A sieve drum is disclosed that is particularly useful in textile processing equipment, such as a suction drum dryer, for heat-treating of continuous web material. The sieve drum is constructed having a single layer of a close mesh screen cylindrically formed between a pair of end heads to provide support for and transmit torque to web material being processed. The close mesh screen is composed of a plurality of longitudinal and transverse wire lengths of relatively heavy gauge than are sinusoidally woven into a lattice having a multitude of small interstitial openings each with rounded edges to provide smooth, unabrasive support to the web material. The multitude of small openings the aggregate area of which comprises less than 50% of the screen surface provides an even distribution of heated air over the surface of the drum and exposes a high percentage of the supported web to the air for a fast, energy efficient heat-treating process.
    Type: Grant
    Filed: February 13, 1986
    Date of Patent: July 7, 1987
    Inventor: David Rattner
  • Patent number: 4654268
    Abstract: A method for processing intumescent material which forms a layer of a transparent fire-screening panel, which method includes forming a layer containing an aqueous solution of intumescent material on a cyclically moving support, removing water from the layer of material on the support by applying heat, removing the intumescent layer from the support within one cycle of its application thereto in such a manner that the layer becomes reworked or broken, and incorporating the removed intumescent material into a glazing panel.
    Type: Grant
    Filed: March 13, 1985
    Date of Patent: March 31, 1987
    Assignee: Glaverbel
    Inventors: Marcel De Boel, Michel Bosquee, Pierre Goelff
  • Patent number: 4639292
    Abstract: In order to control the moisture profile of paper webs in the cross machine direction thereof in the dryer part of the paper making process a built-up insulating sheet fixedly wound around a part of the circumferential surface of a drying cylinder is composed of a fluorine resin coated sheet having an adhesive agent coated layer on the reverse side thereof and an air-containing synthetic fabric adhered to said fluorine resin coated sheet and having a width slightly smaller than that of said fluorine resin coated sheet. The built-up insulating sheet is adhered to the circumferential surface of the drying cylinder at the appointed positions thereof through the adhesive agent coated layer exposed at the end portion of the fluorine resin coated sheet.
    Type: Grant
    Filed: October 19, 1984
    Date of Patent: January 27, 1987
    Assignees: Oji Seisha Kabushiki Kaisha, Shikishima Casvas Kabushiki Kaisha
    Inventors: Toyokazu Ota, Yutaka Nakamura
  • Patent number: 4639291
    Abstract: A drying cylinder for use in the drying part of a paper making process. The moisture profile of paper web is equalized all over the width of said paper web by fixedly winding synthetic fabric around the surface of a drying cylinder contacting with wet paper web at the appointed positions thereof to form the void areas among yarns of said synthetic fabric as highly insulating air-holding portions.
    Type: Grant
    Filed: October 19, 1984
    Date of Patent: January 27, 1987
    Assignees: Shikishima Canvas Kabushiki Kaisha, Oji Seishi Kabushiki Kaisha
    Inventors: Toyokazu Ota, Yutaka Nakamura, Yutaka Ikeda, Shunzi Kataoka, Yoshinobu Ito
  • Patent number: 4538360
    Abstract: Substantially uniform heat transfer through the cylindrical heat transfer wall of a steam heated hollow dryer drum is attained by longitudinal spoiler bars effecting turbulence of condensate throughout a major extent of the inner surface of the heat transfer wall, and condensate turbulence is generated in a narrow annular area from which a stationary siphon intake head withdraws the condensate from the steam chamber. A turbulence promoter is carried by the intake head and may comprise rigid or yieldably supported structure, e.g. a brush, rigid or flexible bar structure, an array of fingers, mounted on the downstream or off-running side of the intake head having regard to the direction of rotation of the drum.
    Type: Grant
    Filed: March 26, 1984
    Date of Patent: September 3, 1985
    Assignee: Beloit Corporation
    Inventors: James L. Chance, Gregory L. Wedel
  • Patent number: 4520578
    Abstract: A drying cylinder adapted to receive steam therein includes a cylindrical cylinder jacket and two end covers. There is a flange connection between the jacket and the covers. The jacket has a rectangular cross-section flange. The covers have an L-shaped flange which receives the end flange of the cover. The covers are concave to the outside of the cylinder. The point of intersection of a curved line through the cover and of the axial center line of the axial arm of the cover flange lies at a distance from the outer face of the flange of the end cover that is at most about 60% of the axial length of the axial arm of that flange. There is thermal insulation on the axially exterior side of each cover.
    Type: Grant
    Filed: May 6, 1983
    Date of Patent: June 4, 1985
    Assignee: J.M. Voith GmbH
    Inventors: Christian Schiel, Georg Zurn, Karl Schmid
  • Patent number: 4506459
    Abstract: A fastener assembly for use with a high temperature heat transfer roll and is provided for joining a sheet of insulating material to the end of said roll by utilizing a protruding bolt head or the like. The fastener assembly comprises a cup-like body defining a cavity for receiving said bolt head and a quantity of adhesive material therewithin. A plurality of inwardly extending projections in said cup-like body cavity may be used to engage the bolt head substantially in an interference fit during setting of the adhesive material. A plurality of through apertures in the cup-like body permit release of any excess quantity of adhesive material therefrom. A shaft portion is formed integral with and projects axially outwardly from the cup-like body and away from the bolt head and is of sufficient axial extent to project through the sheet of insulating material. An enlarged head is carried on an axially outermost end of the shaft portion.
    Type: Grant
    Filed: November 21, 1983
    Date of Patent: March 26, 1985
    Assignee: Illinois Tool Works Inc.
    Inventor: Edwin G. Swick
  • Patent number: 4503626
    Abstract: An arrangement for manufacturing or treating a web material comprises a rotary hollow roll having a hollow jacket which has an axis, a central region around which a web material moves, and two axial end regions which are free from the web material, two bearing pins each supporting said jacket in a respective one of said end regions, at least one of which bearing pins has a passage for a heat-carrying fluid, a displacing member located inside the jacket and extending concentrically to and over the greater part of the jacket so as to form an annular gap between the displacing member and the jacket and communicating with the passage for heat-carrying fluid to supply the latter, and a heat-insulating element arranged at an inner side of each of the end regions of the jacket for reducing heat transfer from the heat-carrying fluid to the jacket.
    Type: Grant
    Filed: October 8, 1982
    Date of Patent: March 12, 1985
    Assignee: Schwabische Huttenwerke GmbH
    Inventors: Peter Rothenbacher, Erich Vomhoff
  • Patent number: 4486962
    Abstract: An improved spoiler bar, for rotatable, steam heated cylindrical dryers, which comprises an assembly of magnets, non-magnetic flux conducting backing and base plates, and magnetic flux conducting rails constructed to position the magnets in spaced adjacency to the dryer drum whereby the installation of the assemblies is facilitated and their strength of adherence to the inner surface of the dryer drum is optimized.
    Type: Grant
    Filed: July 29, 1982
    Date of Patent: December 11, 1984
    Assignee: Beloit Corporation
    Inventor: Gregory L. Wedel
  • Patent number: 4464849
    Abstract: Disclosed is an improved heated can roll of high thermal efficiency for web or sheet processing machines, such as a papermaking machine. The improved can roll has means for insulating the ends of the internally heated can rolls to provide a segmental heat insulating part spaced from the roll end or head to provide an air space adjacent to the head or roll ends, resulting in a large reduction in heat loss. Improved means for attaching the insulator assembly to the end faces of the can roll includes use of panel assembly bolts screwed into threaded bores provided within thickened bolt heads of the can roll head bolts.
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: August 14, 1984
    Inventor: James E. Gamble
  • Patent number: 4454660
    Abstract: A mounting assembly for securing a thermal insulating blanket to an end of a heated cylinder in a papermaking machine. The assembly includes a clamp positionable on heads of bolts used to secure peripheral portions of the cylinder end to a cylindrical main body. Each clamp includes a spring-wire fastener element positioned around a bolt head and a hold-down clamp for preventing removal of the fastener element from the bolt head. An insulating blanket has an outer skirt portion provided with grommets engageable with engagement portions of the fastener elements. The inner skirt portion of the insulating blanket is secured to a journal of the cylinder by a hose-type clamping device or other suitable device having an elongate member that is wrapped around the skirt portion, with overlapping ends of the elongate member being secured to each other to securely clamp the inner skirt portion of the blanket to the journal.
    Type: Grant
    Filed: April 7, 1982
    Date of Patent: June 19, 1984
    Assignee: Scapa Fab, Inc.
    Inventor: Bryan J. Glenister
  • Patent number: 4450631
    Abstract: Disclosed is an improved heated can roll for paper-making machines having a high thermal efficiency. The improvement is in a means for insulating the ends of the internally heated can rolls to provide segmental heat insulating part spaced from the roll end or head to provide an air space adjacent to the head or roll ends, resulting in a large reduction in heat loss through natural convection, convection due to rotation, forced convection due to air draft, and radiation and resulting in a more uniform drying surface temperature.
    Type: Grant
    Filed: September 14, 1982
    Date of Patent: May 29, 1984
    Assignee: Bunnell Plastics, Inc.
    Inventor: James E. Gamble