Patents Assigned to V.I.B. Apparatebau GmbH
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Patent number: 6500305Abstract: A process and an apparatus for the manufacture of SC-A paper having a high gloss and high smoothness, wherein the paper arriving from the paper machine is supplied on-line to a supercalender (multinip soft calendar), and wherein the paper travels through a plurality of nips for achieving the desired gloss and smoothness properties. The paper web arriving from the paper machine and supplied on-line to a supercalender (multinip soft calendar) is moistened with steam immediately prior to the first nip of the supercalender and is guided through the first nip before the increased moisture of the surface resulting from the application of steam has dropped below a predetermined value in the range of 12% to 25%.Type: GrantFiled: November 13, 2000Date of Patent: December 31, 2002Assignee: V. I. B. Apparatebau GmbHInventors: Stefan Winheim, Rudolf Mann, Manfred Diebel
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Patent number: 6260481Abstract: A process and device for increasing the gloss and/or smoothness of a web of material are described, whereby a web of material (5) is passed through a roller gap where it is exposed to pressure. A steam dispensing device (7) is provided upstream of the roller gap relative to the direction of travel (9) of the web of material (5). The increase in gloss and/or smoothness is to be accomplished without consuming much energy. To do so, the steam is condensed on the web of material and the web of material (5) is guided through the roller gap before the increase in moisture content of the surface due to the steam treatment has dropped below a predetermined value.Type: GrantFiled: July 10, 1997Date of Patent: July 17, 2001Assignee: V.I.B. Apparatebau GmbHInventor: Stefan H. Winheim
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Patent number: 6258214Abstract: A process for the manufacture of SC-A paper having a high gloss and high smoothness, wherein the paper arriving from the paper machine is supplied on-line to a supercalender (multinip soft calender), and wherein the paper travels through a plurality of nips for achieving the desired gloss and smoothness properties. The paper web arriving from the paper machine and supplied on-line to a supercalender (multinip soft calender) is moistened with steam immediately prior to the first nip of the supercalender and is guided through the first nip before the increased moisture of the surface resulting from the application of steam has dropped below a predetermined value in the range of 12% to 25%.Type: GrantFiled: September 24, 1999Date of Patent: July 10, 2001Assignee: V.I.B. Apparatebau GmbHInventors: Stefan Winheim, Rudolf Mann
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Patent number: 6073549Abstract: A process and an apparatus for the manufacture of SC-A paper having a high gloss and high smoothness, wherein the paper arriving from the paper machine is supplied on-line to a supercalender (multinip soft calender), and wherein the paper travels through a plurality of nips for achieving the desired gloss and smoothness properties. The paper web arriving from the paper machine and supplied on-line to a supercalender (multinip soft calender) is moistened with steam immediately prior to the first nip of the supercalender and is guided through the first nip before the increased moisture of the surface resulting from the application of steam has dropped below a predetermined value in the range of 12% to 25%.Type: GrantFiled: August 27, 1998Date of Patent: June 13, 2000Assignee: V.I.B. Apparatebau GmbHInventors: Stefan Winheim, Rudolf Mann
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Patent number: 5946821Abstract: A device for the moistening of a running web of material with the aid of steam includes a housing which has a treatment side facing the web of material. The treatment side includes steam exit openings. The device further includes a front side disposed at the incoming end of the treatment side. In the area of the front side, over part of its length in a direction toward the web, a projecting rail is placed over the treatment side and has a working edge that faces toward the web of material.Type: GrantFiled: May 12, 1998Date of Patent: September 7, 1999Assignee: V.I.B. Apparatebau GmbHInventor: Stefan Winheim
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Patent number: 5914008Abstract: A process and device for increasing the gloss and/or smoothness of a web of material are described, whereby a web of material (5) is passed through a roller gap where it is exposed to pressure. A steam dispensing device (7) is provided upstream of the roller gap relative to the direction of travel (9) of the web of material (5). The increase in gloss and/or smoothness is to be accomplished without consuming much energy. To do so, the steam is condensed on the web of material and the web of material (5) is guided through the roller gap before the increase in moisture content of the surface due to the steam treatment has dropped below a predetermined value. The predetermined moisture content is in the range of 12% to 25%.Type: GrantFiled: October 21, 1996Date of Patent: June 22, 1999Assignee: V.I.B. Apparatebau GmbHInventor: Stefan H. Winheim
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Patent number: 5778559Abstract: A device for the moistening of a running web of material with the aid of stream includes a housing which has a treatment side facing the web of material. The treatment side includes steam exit openings. The device further includes a front side disposed at the incoming end of the treatment side. In the area of the front side, over part of its length in a direction toward the web, a projecting rail is placed over the treatment side and has a working edge that faces toward the web of material.Type: GrantFiled: January 26, 1995Date of Patent: July 14, 1998Assignee: V.I.B. Apparatebau GmbHInventor: Stefan Winheim
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Patent number: 5642671Abstract: A method of printing a material web includes the steps of applying ink to the material web, subsequently drying the material web with the use of heat and subsequently drying the material web, and, after cooling and prior to further processing, moistening the material web while simultaneously applying heat to the material web, and subsequently once again cooling the material web. An apparatus for carrying out the method includes, in a travel direction, a printing unit, a drying section following the printing unit, a cooling section following the drying section, a moistening section following the cooling section, and an after-cooling section following the moistening section.Type: GrantFiled: April 24, 1996Date of Patent: July 1, 1997Assignee: V.I.B. Apparatebau GmbHInventor: Stefan Winheim
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Patent number: 5623771Abstract: A steam moistening apparatus includes a housing with a steam connection, wherein a steam blow chamber is arranged in the housing. The steam blow chamber has an external wall in common with the housing and the external wall is provided with steam outlet openings. A distribution duct to which steam can be admitted and which is continuously surrounded by steam on all sides is arranged in the interior of the housing of the steam moistening apparatus. The distribution duct is in communication with the steam blow chamber through several supply lines which are distributed over the length of the housing.Type: GrantFiled: January 3, 1996Date of Patent: April 29, 1997Assignee: V.I.B. Apparatebau GmbHInventor: Stefan Winheim
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Patent number: 5619927Abstract: A method of printing a material web includes the steps of applying ink to the material web, subsequently drying the material web with the use of heat and subsequently drying the material web, and, after cooling and prior to further processing, moistening the material web while simultaneously applying heat to the material web, and subsequently once again cooling the material web. An apparatus for carrying out the method includes, in a travel direction, a printing unit, a drying section following the printing unit, a cooling section following the drying section, a moistening section following the cooling section, and an after-cooling section following the moistening section.Type: GrantFiled: August 30, 1995Date of Patent: April 15, 1997Assignee: V.I.B. Apparatebau GmbHInventor: Stefan Winheim
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Patent number: 5445071Abstract: A steam spray tube with an inlet line (16) for steam, a nozzle arrangement (33) and a valve (19) positioned between the inlet line and the nozzle arrangement is described. With such a steam spray tube, adequate moistening of a web to be moistened can be assured even at high web velocities. To do so, an essentially straight acceleration channel (35) is arranged downstream from valve (19) in the direction of flow of the steam and a nozzle channel (36) to the nozzle arrangement (33) branches off from the acceleration channel at a predetermined distance from the end (37) of the acceleration channel (35).Type: GrantFiled: June 3, 1994Date of Patent: August 29, 1995Assignee: V.I.B. Apparatebau GmbHInventor: Stefan H. Winheim
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Patent number: 5429303Abstract: A steam spray tube with an inlet line (16) for steam, a nozzle arrangement (33) and a valve (19) positioned between the inlet line and the nozzle arrangement is described. With such a steam spray tube, adequate moistening of a web to be moistened can be assured even at high web velocities. To do so, an essentially straight acceleration channel (35) is arranged downstream from valve (19) in the direction of flow of the steam and a nozzle channel (36) to the nozzle arrangement (33) branches off from the acceleration channel at a predetermined distance from the end (37) of the acceleration channel (35).Type: GrantFiled: August 30, 1993Date of Patent: July 4, 1995Assignee: V.I.B. Apparatebau GmbHInventor: Stefan H. Winheim
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Patent number: 5282323Abstract: Apparatus for directing steam against one side of a running web of fibrous material has a housing defining one or more steam chambers and having walls which surround the chamber or chambers. One of the walls is apertured and is located at the path for the web to direct jets of steam toward successive increments of the running web. The steam is dried prior to admission into the chamber or chambers via one or more adjustable valves, and at least one wall of the housing is heated by dried and/or undried steam in order to reduce the likelihood of condensation of steam in the chamber or chambers.Type: GrantFiled: July 23, 1992Date of Patent: February 1, 1994Assignee: V.I.B. Apparatebau GmbHInventor: Stefan H. Winheim
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Patent number: 5059285Abstract: An apparatus for directing jets of steam against successive increments of a running web of moist fibrous material in a paper making machine has a housing with an apertured wall, which is adjacent one side of the running web, and several plenum chambers which are adjacent the apertured wall and serve to deliver uniformly distributed steam for penetration through the wall and into contact with the web. At least some plenum chambers contain valves which discharge several annuli of streamlets of steam so that the streamlets first contact the masses of steam in the respective chambers and spread in such chambers prior to reaching the apertured wall. Each valve has a cylindrical body portion with two annuli of steam discharging ports whose axes are inclined at angles of more than 60.degree. with reference to an axis extending at right angles to the apertured wall. Each cylindrical body portion has twelve or more ports to ensure uniform distribution of steam in the respective chamber.Type: GrantFiled: January 15, 1988Date of Patent: October 22, 1991Assignee: V.I.B. Apparatebau GmbHInventor: Stefan H. Winheim
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Patent number: 4946101Abstract: An atomizer wherein a housing is threadedly connected with an air-supplying first nozzle which surrounds and centers a water-supplying second nozzle. The second nozzle extends beyond an annular orifice of a channel which discharges two streams of air, one in the form of a swirling annulus and the other in the form of a substantially straight stream with the annulus. The two air streams atomize the flow of water which issues from the second nozzle in such a way that the resulting atomized flow contains minute droplets of water all the way across its cross-sectional area. An annular swirling member is installed between the two nozzles to form the first air stream. The two nozzles have abutting surfaces provided on two sections one of which surrounds the other to center the second nozzle in the first nozzle and vice versa.Type: GrantFiled: June 9, 1989Date of Patent: August 7, 1990Assignee: V.I.B. Apparatebau GmbHInventor: Stefan H. Winheim
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Patent number: 4915788Abstract: Steam is blown against one side of a running web of moist fibrous material in a paper making machine through a first set of apertures in the wall of an apparatus which defines a first chamber for supplying steam to the first set of apertures, a second chamber which supplies steam to a second set of apertures upstream of the first set, and a third chamber which supplies steam to a third set of apretures downstream of the first set.Type: GrantFiled: January 24, 1989Date of Patent: April 10, 1990Assignee: V.I.B. Apparatebau GmbHInventor: Stefan H. Winheim
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Patent number: 4606136Abstract: A rotary siphon in the steam-filled internal chamber of the rotating cylindrical shell in a paper or cardboard machine dryer has a hollow conical housing which defines with the internal surface of the shell an annular suction gap and spacedly surrounds a conical insert whose base abuts against the internal surface of the shell. The housing and the insert define an annular channel whose radially outermost portion communicates with the gap and whose radially innermost portion communicates with the interior of a condensate evacuating conduit. The condensate accumulates along the internal surface of the shell and is compelled to flow radially inwardly by way of the gap and channel and into the conduit due to the establishment of a pressure differential between the channel and the internal chamber of the shell.Type: GrantFiled: June 17, 1985Date of Patent: August 19, 1986Assignee: V.I.B.-Apparatebau GmbHInventor: Dieter Pflug