Patents Assigned to Sefar AG
  • Publication number: 20160367930
    Abstract: The invention relates to a method for producing a contoured filter element, according to which method at least one filtering medium is applied to a flat backing material and is detachably secured thereto. The filtering medium is cut out on the backing material to form the contoured filter element and said contoured filter element can be detached from the backing material for use. The invention also relates to a filter element arrangement produced by means of this method.
    Type: Application
    Filed: February 9, 2015
    Publication date: December 22, 2016
    Applicant: Sefar AG
    Inventor: Hansjoerg DUER
  • Patent number: 9313884
    Abstract: Electrode substrate for an optoelectronic device having a fabric (10) that includes electrically conductive (14; 56) as well as non-conductive (12; 50) and transparent fibers wherein the fabric is furnished over a wide area with a transparent, electrically conductive coating (26, 28, 58) in such manner that projecting or exposed portions of the electrically conductive fibers cooperate with the conductive coating in order to produce electrical contacts, wherein the conductive coating has a layer thickness that is smaller than a mean diameter of the electrically conductive and electrically non-conductive fibers of the fabric, a fabric weave of the electrically conductive fibers of the fabric is organized in such a manner that in order to create the protruding portions, the fibers encompass at least 2 of the non-conductive fibers that extend transversely in the manner of a twill weave, the fabric is embedded in the coating in such manner that portions (20; 22; 56) of the conductive fibers protrude from a non-con
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: April 12, 2016
    Assignee: Sefar AG
    Inventors: Peter Chabrecek, Uriel Sonderegger
  • Publication number: 20160074788
    Abstract: The invention relates to a filter medium having a filter fabric on an upper side and a support fabric on a lower side, wherein the filter fabric and the support fabric have different yams and together take the form of a double weave, wherein the filter fabric has a pore count of 4000/cm2 or greater, preferably 5000/cm2.
    Type: Application
    Filed: February 17, 2014
    Publication date: March 17, 2016
    Applicant: Sefar AG
    Inventors: Isabell ERLENMAIER, Christoph MAURER, Christian GURTNER, Christian DIETMAYER
  • Patent number: 9278299
    Abstract: A filter element with a filter medium and at least one retainer, to which the filter medium is fixed. The retainer comprises a retainer base body and a retainer attachment. The filter medium is arranged between the retainer base body and the retainer attachment at least in sections, and at least one profile element is formed on the retainer base body and/or on the retainer attachment to allow form-fitting and/or force-fitting retention of the filter medium there between.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: March 8, 2016
    Assignee: Sefar AG
    Inventors: Richard M. Gaiser, Hansjoerg Duer
  • Publication number: 20160001208
    Abstract: The invention relates to a filter device for treating a rinsing liquid for material-removing machining, said filter device having a filter element through which the rinsing liquid can be conducted for separating removed material particles. In order to increase the service life, the filter element is provided with a filter fabric, on the filtration upper side of which are formed fabric pores in the form of distinctive longitudinal slots which have a ratio of length to width of ?1.
    Type: Application
    Filed: June 26, 2014
    Publication date: January 7, 2016
    Applicant: Sefar AG
    Inventors: Isabell ERLENMAIER, Christian DIETMAYER, Christian GURTNER, Christoph MAURER
  • Publication number: 20140191211
    Abstract: Electrode substrate for an optoelectronic device having a fabric (10) that includes electrically conductive (14; 56) as well as non-conductive (12; 50) and transparent fibres wherein the fabric is furnished over a wide area with a transparent, electrically conductive coating (26, 28, 58) in such manner that projecting or exposed portions of the electrically conductive fibres cooperate with the conductive coating in order to produce electrical contacts, wherein the conductive coating has a layer thickness that is smaller than a mean diameter of the electrically conductive and electrically non-conductive fibres of the fabric, a fabric weave of the electrically conductive fibres of the fabric is organized in such a manner that in order to create the protruding portions, the fibres encompass at least 2 of the non-conductive fibres that extend transversely in the manner of a twill weave, the fabric is embedded in the coating in such manner that portions (20; 22; 56) of the conductive fibres protrude from a non-con
    Type: Application
    Filed: March 23, 2012
    Publication date: July 10, 2014
    Applicant: Sefar AG
    Inventors: Peter Chabrecek, Uriel Sonderegger
  • Patent number: 8598779
    Abstract: An optoelectronic film assembly, has a first flat electrode layer, a second flat electrode layer as a counter electrode to the first flat electrode layer, a dielectric layer between the electrode layers and an active layer provided next to the dielectric layer and arranged between the electrode layers and made of an electroluminescent material. To this end, the first and/or the second electrode layers are implemented to be translucent and TCO-free, particularly ITO-free, by using a woven fabric comprising electrically conductive fibers.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: December 3, 2013
    Assignee: Sefar AG, Thal
    Inventors: Peter Chabrecek, Hanspeter Meier, Muriel Lantus, Uriel Sonderegger
  • Patent number: 8291554
    Abstract: The invention relates to a fastening element for two-dimensional fiber material comprising a basic element and pin-shaped profile elements, which protrude from the basic element in order to penetrate the fiber material. Provision is made for the profile elements to be deformable in order to form retaining heads for the fiber material. The invention further relates to a method for fastening two-dimensional fiber material which can be carried out with a fastening element of such type. By the method in accordance with the invention a cold micro-riveting can be achieved.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: October 23, 2012
    Assignee: Sefar AG
    Inventor: Hansjoerg Duer
  • Publication number: 20120262191
    Abstract: The invention relates to an extension sensor, in particular for measuring an extension of a textile, comprising at least one yarn, which has an extensibility and wherein the yarn comprises at least two electrically conductive layers that extend along a longitudinal direction of the yarn, wherein the electrically conductive layers are spatially separated and insulated from each other.
    Type: Application
    Filed: September 28, 2011
    Publication date: October 18, 2012
    Applicant: SEFAR AG
    Inventors: Ivo Locher, Sebastian Rumpf
  • Patent number: 8197685
    Abstract: The invention relates to a filter element for a press filter comprising first and second filtering means, each having at least one opening for the passage of a slurry to be filtered, and first and second connecting means for connecting the openings of the first and second filtering means. Each of the first and second connecting means comprises a flange portion and a tubular portion, wherein the flange portion of the first connecting means is fixedly attached to the first filtering means and the flange portion of the second connecting means is fixedly attached to the second filtering means, and wherein the tubular portion of the first connecting means is insertable into the tubular portion of the second connecting means.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: June 12, 2012
    Assignee: Sefar AG
    Inventors: Jean Luis Ribet, Sandrine Minebois
  • Publication number: 20120043879
    Abstract: An optoelectronic film assembly, has a first flat electrode layer, a second flat electrode layer as a counter electrode to the first flat electrode layer, a dielectric layer between the electrode layers and an active layer provided next to the dielectric layer and arranged between the electrode layers and made of an electroluminescent material. To this end, the first and/or the second electrode layers are implemented to be translucent and TCO-free, particularly ITO-free, by using a woven fabric comprising electrically conductive fibers.
    Type: Application
    Filed: April 20, 2010
    Publication date: February 23, 2012
    Applicant: SEFAR AG, THAL
    Inventors: Peter Chabrecek, Hanspeter Meier, Muriel Lantus, Uriel Sonderegger
  • Patent number: 8056587
    Abstract: The fabric for textile structures and/or coverings, consisting of warp threads and weft threads of PTFE-yarn, in which the number of warp threads is at least approximately twice the number of weft threads. A method for producing a fabric, in which during the weaving through the warp threads at least two parallel extending individual threads are led simultaneously through a shed of the warp threads.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: November 15, 2011
    Assignee: Sefar AG
    Inventor: Wolfgang Fuchs
  • Publication number: 20110217892
    Abstract: A woven fabric (1) made from threads (2) that are formed from plastic at least one their outside surface. At least one surface side (7) of the fabric (1) is partially metallically coated.
    Type: Application
    Filed: November 11, 2009
    Publication date: September 8, 2011
    Applicant: SEFAR AG
    Inventors: Peter Chabrecek, Hanspeter Meier
  • Publication number: 20100233455
    Abstract: The invention relates to a fabric, in particular for textile structures and/or coverings, consisting of warp threads and weft threads of PTFE-yarn, in which the number of warp threads is at least approximately twice the number of weft threads. The invention further relates to a method for producing a fabric, in which during the weaving through the warp threads at least two parallel extending individual threads are led simultaneously through a shed of the warp threads.
    Type: Application
    Filed: May 25, 2007
    Publication date: September 16, 2010
    Applicant: SEFAR AG
    Inventor: Wolfgang Fuchs
  • Patent number: 7779995
    Abstract: A connector arrangement for connecting web ends (5), in particular an endless filter web, comprises two elongate elements which each have at least one elongate leg (1, 2) for fastening on one of the web ends (5), and a longitudinal flank (9) directed away from the web end (5). In a first longitudinal-section plane the longitudinal flank (9) has a first periodic contour, which engages in a corresponding contour of the other element respectively. In a second and third cross-section plane extending parallel to the first longitudinal-section plane, the elements each have second and third periodic contours (10, 11), which engage in a form-fitting manner in respectively corresponding contours (10, 11) of the other element respectively. The first to third contours form a groove (13, 13?) and a tongue (12) in at least one cross-section plane.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: August 24, 2010
    Assignee: Sefar AG
    Inventors: Franz Lechner, Hermann Pauker
  • Publication number: 20100200518
    Abstract: The invention relates to a filter element for a press filter comprising first and second filtering means, each having at least one opening for the passage of a slurry to be filtered, and first and second connecting means for connecting the openings of the first and second filtering means. Each of the first and second connecting means comprises a flange portion and a tubular portion, wherein the flange portion of the first connecting means is fixedly attached to the first filtering means and the flange portion of the second connecting means is fixedly attached to the second filtering means, and wherein the tubular portion of the first connecting means is insertable into the tubular portion of the second connecting means.
    Type: Application
    Filed: August 10, 2009
    Publication date: August 12, 2010
    Applicant: SEFAR AG
    Inventors: Jean Luis RIBET, Sandrine MINEBOIS
  • Publication number: 20100097215
    Abstract: The invention relates to a security material having a web-like interlaced fabric and insulated, electrically conductive wires integrated therein. Provision is made for a first wire to be arranged in the longitudinal direction of the web-like interlaced fabric and for a second wire to extend in a meandering manner across the width of the web-like interlaced fabric in the longitudinal direction thereof.
    Type: Application
    Filed: September 24, 2009
    Publication date: April 22, 2010
    Applicant: SEFAR AG
    Inventor: Ivo Locher
  • Publication number: 20100088864
    Abstract: The invention relates to a fastening element for two-dimensional fibre material comprising a basic element and pin-shaped profile elements, which protrude from the basic element in order to penetrate the fibre material. Provision is made for the profile elements to be deformable in order to form retaining heads for the fibre material. The invention further relates to a method for fastening two-dimensional fibre material which can be carried out with a fastening element of such type. By the method in accordance with the invention a cold micro-riveting can be achieved.
    Type: Application
    Filed: April 7, 2009
    Publication date: April 15, 2010
    Applicant: SEFAR AG
    Inventor: Hansjoerg Duer
  • Publication number: 20100068462
    Abstract: The invention relates to an evaporation element and a method for its production. The evaporation element comprises a diffusion layer with a textile structure for the surface-distribution of a liquid to be evaporated. For a good liquid distribution the textile structure of the diffusion layer comprises a plurality of fibrils that are provided with longitudinal grooves along their exterior.
    Type: Application
    Filed: January 15, 2008
    Publication date: March 18, 2010
    Applicant: SEFAR AG
    Inventors: Ronald Schindele, Markus Josef Friedl, Daniel M. Gross, Christoph Maurer
  • Publication number: 20100053748
    Abstract: Thin high-density fabrics are particularly suitable for super wide-angle rear projections that are accurate in every detail. Based on said recognition, the invention relates to a rear projection fabric (20, 30) that comprises a number of threads (21, 23, 31, 33) and has a density of more than seven threads per millimeter, the maximum diameter of a thread being less than 0.06 mm. The invention further relates to a rear projection screen (10) which comprises such a rear projection fabric (20, 30) and can create a wide-angle rear projection image (41) that is particularly accurate in every detail. More particularly, such a rear projection screen (10) makes it possible to create a relatively inexpensive rear projection system (40) which can be designed by means of the standard power of a projector (43), e.g. in the form of a beamer or laser.
    Type: Application
    Filed: October 11, 2007
    Publication date: March 4, 2010
    Applicant: SEFAR AG
    Inventors: Noemi Rohner, Thomas Hirt, Yves Clerc