Patents by Inventor Wolfgang Heger

Wolfgang Heger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10060076
    Abstract: A paper machine screen which is formed as a transverse thread-bound, multi-layer fabric. Binding transverse threads extend respectively both in an upper fabric layer and in a lower fabric layer and hereby bind the lower fabric layer to the upper fabric layer. The binding transverse threads form functional transverse thread pairs within the total repeat, the transverse threads of which alternately complete the first weave. In the total repeat, the functional transverse thread pairs in the upper fabric layer are arranged in groups of respectively two or more functional transverse thread pairs arranged directly one after another, when seen in a longitudinal direction.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: August 28, 2018
    Assignee: Andritz Technology & Asset Management GmbH
    Inventors: Ipek Uymur, Wolfgang Heger
  • Patent number: 9605380
    Abstract: A sheet-forming wire with a lower fabric layer formed from a multiplicity of identically constructed lower weave repeats, each of which contains longitudinal threads extending in the lower fabric layer, and lower cross threads, with the lower cross threads extend only in the lower fabric layer. The lower cross threads are tied into the lower fabric layer in each case by exactly two longitudinal threads extending in the lower fabric layer, in that each particular lower cross thread is run under by a first longitudinal thread at a first tying-in point (x) and is run under by a second longitudinal thread at a second tying-in point (x). The lower cross threads form first lower cross threads (I) and second lower cross threads (II). The first lower cross threads form a shorter float on the running side than the second lower cross threads.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: March 28, 2017
    Assignee: Andritz Kufferath GmbH
    Inventors: Ipek Uymer, Wolfgang Heger
  • Publication number: 20170037572
    Abstract: A paper machine screen which is formed as a transverse thread-bound, multi-layer fabric. Binding transverse threads extend respectively both in an upper fabric layer and in a lower fabric layer and hereby bind the lower fabric layer to the upper fabric layer. The binding transverse threads form functional transverse thread pairs within the total repeat, the transverse threads of which alternately complete the first weave. In the total repeat, the functional transverse thread pairs in the upper fabric layer are arranged in groups of respectively two or more functional transverse thread pairs arranged directly one after another, when seen in a longitudinal direction.
    Type: Application
    Filed: October 21, 2016
    Publication date: February 9, 2017
    Inventors: Ipek Uymur, Wolfgang Heger
  • Patent number: 9528223
    Abstract: A paper machine screen which is formed as a transverse thread-bound, multi-layer fabric. Binding transverse threads extend respectively both in an upper fabric layer and in a lower fabric layer and hereby bind the lower fabric layer to the upper fabric layer. The binding transverse threads form functional transverse thread pairs within the total repeat, the transverse threads of which alternately complete the first weave. In the total repeat, the functional transverse thread pairs in the upper fabric layer are arranged in groups of respectively two or more functional transverse thread pairs arranged directly one after another, when seen in a longitudinal direction.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: December 27, 2016
    Assignee: Andritz Technology & Asset Management GmbH
    Inventors: Ipek Uymur, Wolfgang Heger
  • Publication number: 20160215451
    Abstract: A sheet-forming wire with a lower fabric layer formed from a multiplicity of identically constructed lower weave repeats, each of which contains longitudinal threads extending in the lower fabric layer, and lower cross threads, with the lower cross threads extend only in the lower fabric layer. The lower cross threads are tied into the lower fabric layer in each case by exactly two longitudinal threads extending in the lower fabric layer, in that each particular lower cross thread is run under by a first longitudinal thread at a first tying-in point (x) and is run under by a second longitudinal thread at a second tying-in point (x). The lower cross threads form first lower cross threads (I) and second lower cross threads (II). The first lower cross threads form a shorter float on the running side than the second lower cross threads.
    Type: Application
    Filed: June 2, 2014
    Publication date: July 28, 2016
    Applicant: Andritz Kufferath GmbH
    Inventors: Ipek UYMUR, Wolfgang HEGER
  • Publication number: 20150337492
    Abstract: A paper machine screen which is formed as a transverse thread-bound, multi-layer fabric. Binding transverse threads extend respectively both in an upper fabric layer and in a lower fabric layer and hereby bind the lower fabric layer to the upper fabric layer. The binding transverse threads form functional transverse thread pairs within the total repeat, the transverse threads of which alternately complete the first weave. In the total repeat, the functional transverse thread pairs in the upper fabric layer are arranged in groups of respectively two or more functional transverse thread pairs arranged directly one after another, when seen in a longitudinal direction.
    Type: Application
    Filed: May 7, 2014
    Publication date: November 26, 2015
    Inventors: Ipek Uymur, Wolfgang Heger
  • Publication number: 20140345819
    Abstract: The invention relates to a papermaking fabric which is designed as a multi-layer woven fabric having an upper fabric layer and a lower fabric layer. The upper fabric layer has a plurality of upper longitudinal threads which run solely in the upper fabric layer and a plurality of upper transverse threads which are interwoven with the upper longitudinal threads and each run at least primarily in the upper fabric layer. The lower fabric layer has a plurality of lower longitudinal threads which run solely in the lower fabric layer and a plurality of lower transverse threads which are interwoven with the lower longitudinal threads and run solely in the lower fabric layer. The upper fabric layer has a repeating upper weave pattern on the upper side thereof which is formed from nine upper longitudinal threads and three upper transverse threads.
    Type: Application
    Filed: September 6, 2012
    Publication date: November 27, 2014
    Applicant: ANDRITZ KUFFERATH GMBH
    Inventor: Wolfgang Heger
  • Patent number: 8631832
    Abstract: A sheet forming screen is described which is formed as a multi-layer fabric, wherein the fabric has a longitudinal thread repeat of sixteen longitudinal threads, four longitudinal threads (11 to 14) of which are formed as upper longitudinal threads, eight longitudinal threads (31 to 38) of which are formed as lower longitudinal threads, and the remaining four longitudinal threads (21 to 24) of which form two functional longitudinal thread pairs of two longitudinal threads each arranged next to each other which alternately complete the first weave, wherein at least one of the four longitudinal threads which form the two functional longitudinal thread pairs extends both in the upper fabric layer and in the lower fabric layer and thereby binds the lower fabric layer to the upper fabric layer.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: January 21, 2014
    Assignee: Andritz Technology and Asset Management GmbH
    Inventor: Wolfgang Heger
  • Publication number: 20130105030
    Abstract: A sheet forming screen is described which is formed as a multi-layer fabric, wherein the fabric has a longitudinal thread repeat of sixteen longitudinal threads, four longitudinal threads (11 to 14) of which are formed as upper longitudinal threads, eight longitudinal threads (31 to 38) of which are formed as lower longitudinal threads, and the remaining four longitudinal threads (21 to 24) of which form two functional longitudinal thread pairs of two longitudinal threads each arranged next to each other which alternately complete the first weave, wherein at least one of the four longitudinal threads which form the two functional longitudinal thread pairs extends both in the upper fabric layer and in the lower fabric layer and thereby binds the lower fabric layer to the upper fabric layer.
    Type: Application
    Filed: May 17, 2011
    Publication date: May 2, 2013
    Applicant: ANDRITZ TECHNOLOGY AND ASSET MANAGEMENT GMBH
    Inventor: Wolfgang Heger
  • Patent number: 7770606
    Abstract: An upper side for a multiple-layer sheet-forming fabric has a multiplicity of longitudinal threads woven with a multiplicity of transverse threads and thereby form repeats in the longitudinal and transverse directions. The transverse-thread repeat contains three times as many threads as the longitudinal-thread repeat. The longitudinal-thread repeat has at least three threads. The transverse-thread repeat has at least nine threads. All longitudinal threads run alternately over three transverse threads and under three transverse threads, and subsequently under the remaining transverse threads of a transverse thread repeat. Two directly adjacent longitudinal threads are displaced with respect to one another in the longitudinal direction by at least three transverse threads.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: August 10, 2010
    Assignee: Andritz Technology and Asset Management GmbH
    Inventors: Wolfgang Heger, Klaus Fichter
  • Publication number: 20090308482
    Abstract: The invention relates to an upper side, in particular a paper side for a multiple-layer sheet-forming fabric, in particular provided for use in a wet end of a papermaking machine, which comprises a multiplicity of longitudinal threads (21, 22, 23, . . . ) which are woven with a multiplicity of transverse threads (1, 2, 3, . . . ) and in the process form repeats in the longitudinal and transverse direction, wherein the transverse-thread repeat contains at least three times as many threads as the longitudinal-thread repeat and the longitudinal-thread repeat comprises at least three threads (21, 22, 23) and the transverse-thread repeat comprises at least nine (1, 2, 3, . . . , 9), wherein all longitudinal threads run alternately over three transverse threads (1, 3, 5) and under three transverse threads (2, 4, 6) and subsequently under the remaining transverse threads (7, 8, 9, . . . ), and wherein two directly adjacent longitudinal threads (21 and 22, 22 and 23, 23 and 24, . . .
    Type: Application
    Filed: December 20, 2006
    Publication date: December 17, 2009
    Inventors: Wolfgang Heger, Klaus Fichter
  • Patent number: 7585394
    Abstract: A wire cloth, in particular a paper making wire cloth, has at least two fabric layers (1B, 1T; 2B, 2T), including an upper fabric layer made of wires in the making direction (101, 110) and wires in the cross direction (121, 130), and a lower fabric layer made of wires in the making direction and wires in the cross direction (141, 145). Wire bridges are formed for the individual fabric layers in such a way that they extend over a predeterminable distance within a pattern repeat without being tied to other wires. The wire bridges of the upper cross direction wires extend within a pattern repeat over at least nine making direction wires and under maximum one making direction wire. The wire bridges of the lower cross direction wires extend within the pattern repeat at least under six and over two making direction wires. Between two making direction wires extending over a cross direction wire, at least one other making direction wire extends under the same cross direction wire.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: September 8, 2009
    Assignee: Andreas Kufferath GmbH & Co. KG
    Inventors: Wolfgang Heger, Klaus Fichter
  • Patent number: 7406985
    Abstract: A papermaking screen, especially for the sheet forming zone, has one paper side and one machine side with a first type of transverse yarns of the paper side and a second type of transverse yarns (25 to 40) of the machine side. The transverse yarns are woven with at least one type of longitudinal yarns (41 to 56). The longitudinal yarns (41 to 56) on the machine side within the machine-side pattern repeat bind two respective transverse yarns of the second type (25, 28; 31, 34; 37, 40). The division of the intersections for the longitudinal yarns is then improved, so that marks in the paper to be produced are prevented to the greatest extent possible.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: August 5, 2008
    Assignee: Andreas Kufferath GmbH & Co. KG
    Inventors: Wolfgang Heger, Klaus Fichter
  • Patent number: 7373957
    Abstract: A papermaking screen includes at least one individual fabric for the paper side and at least one individual fabric for the machine side. Each of those fabrics is provided with a set of weft yarns (4, 6) and warp yarns (1, 5). At least one part of the superimposed individual fabrics is interconnected via binder yarns (3). The two fabric layers (paper side and machine side) are connected by binder yarns that are fully integrated into the fabric structure of the paper side and are able to support the resulting binding point due to each binder yarn (3) engaging with warp yarns (1) of the individual fabric from above at defined points on the paper side, while at least one weft yarn (2) of the individual fabric engages with the warp yarns (1) from below on the opposite side so as to lean against it such that the binder yarns remain on one plane along with the weft and the remaining warp yarns.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: May 20, 2008
    Assignee: Andreas Kufferath GmbH & Co. KG
    Inventors: Wolfgang Heger, Klaus Fichter
  • Publication number: 20070157988
    Abstract: The invention relates to papermaking screen, especially for the sheet forming zone, with one paper side and one machine side, among others consisting of a first type of transverse yarns of the paper side and a second type of transverse yarns (25 to 40) of the machine side, which are woven with at least one type of longitudinal yarns (41 to 56). In that the longitudinal yarns (41 to 56) on the machine side within the machine-side pattern repeat bind two respective transverse yarns of the second type (25, 28; 31, 34; 37, 40), the division of the intersections for the longitudinal yams is improved, so that marks in the paper to be produced are prevented to the greatest extent possible.
    Type: Application
    Filed: May 1, 2006
    Publication date: July 12, 2007
    Inventors: Wolfgang Heger, Klaus Fichter
  • Publication number: 20070125911
    Abstract: A wire cloth, in particular a paper making wire cloth, comprises at least two fabric layers (1B, 1T; 2B, 2T;), including an upper fabric layer made of wires in the making direction (101, 110) and wires in the cross direction (121, 130), and a lower fabric layer made of wires in the making direction and wires in the cross direction (141, 145). Wire bridges are formed for the individual fabric layers in such a way that they extend over a predeterminable distance within a pattern repeat without being tied to other wires. The wire bridges of the upper, cross direction wires extend within a pattern repeat over at least nine making direction wires and under maximum one making direction wire, the wire bridges of the lower cross direction wires extend within the pattern repeat at least under six and over two making direction wires, and between two making direction wires which extend over a cross direction wire at least one other making direction wire extends under the same cross direction wire.
    Type: Application
    Filed: February 3, 2005
    Publication date: June 7, 2007
    Inventors: Wolfgang Heger, Klaus Fichter
  • Publication number: 20060162804
    Abstract: The invention relates to a papermaking screen comprising at least one individual fabric for the paper side and at least one individual fabric for the machine side. Each of said fabrics is provided with a set of weft yarns (4,6) and warp yarns (1,5), at least one part of the superimposed individual fabrics being interconnected via binder yarns (3).
    Type: Application
    Filed: October 24, 2003
    Publication date: July 27, 2006
    Inventors: Wolfgang Heger, Klaus Fichter
  • Patent number: 7048830
    Abstract: A paper-making machine wire cloth has an individual woven cloth for the paper side (12) and an individual woven cloth for the running side (14). Each woven cloth includes a set of weft threads (16;20) and warp threads (18;22). The diameters and the number of paper side and running side warp threads (18;22) are essentially equal. The paper side warp threads (18) and weft threads (16), together, form a weave. At least a portion of the running side threads (22) passes into the paper side (12), extends over the subsequent paper side weft thread (16) and, afterwards, returns to the running side (14) each time at a location (24), at which this warp thread (22) is located above at least one assigned running side weft thread (20). A marking-free paper side is achieved in the weave, while simultaneously improving the surface uniformity.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: May 23, 2006
    Assignee: Andreas Kufferath GmbH & Co. KG
    Inventors: Wolfgang Heger, Klaus Fichter
  • Patent number: 7048829
    Abstract: A papermaking wire cloth, especially for the sheet forming zone, includes a paper side (12) and a backing side (14). The wire cloth is formed out of at least one type of transverse threads (16, 18) which are interwoven with at least one type of longitudinal threads (20). The threads together form repeats (A-H) and at least two different types of crossing (22, 24). The longitudinal threads (20) are alternated within the respective repeat (A-H) on the backing side (14), forming the other type of intersection (24). The transverse threads (18) on the backing side (14) are held on their outer side (26) which faces the paper side (12), by at least two longitudinal threads (20) within the repeat (A-H) on the backing side (14). Maximum fibre support is achieved on the paper side accompanied by little marking of the upper side as the points of alternation or intersections are evenly distributed.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: May 23, 2006
    Assignee: Andreas Kufferath GmbH & Co. KG
    Inventors: Wolfgang Heger, Klaus Fichter
  • Publication number: 20040089365
    Abstract: The invention relates to a paper-making machine wire cloth comprised of an individual woven cloth for the paper side (12) and an individual woven cloth for the running side (14), whereby each woven cloth consists of a set of weft threads (16; 20) and warp threads (18; 22). The diameters and the number of paper side and running side warp threads (18; 22) are essentially equal, and the paper side warp threads (18) and weft threads (16), together, form a plain weave. In order that at least a portion of the running side threads (22) passes into the paper side (12), extends over the subsequent paper side weft thread (16) and, afterwards, returns to the running side (14) each time at a location (24), at which this warp thread (22) is located above at least one assigned running side weft thread (20), a marking-free paper side is achieved in the plain weave while simultaneously improving the surface uniformity.
    Type: Application
    Filed: September 25, 2003
    Publication date: May 13, 2004
    Inventors: Wolfgang Heger, Klaus Fichter