Patents by Inventor Klaus Veeser
Klaus Veeser 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).
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Patent number: 9180394Abstract: The invention relates to a multi-layer composite for use in an air filter, comprising at least one upstream ply and a support ply that is connected to the upstream ply. The upstream ply is made of a non-woven fabric and has a finer porosity than the support ply. The aim of the invention is to form and further develop a multi-layer composite for use in an air filter, in particular in a filter bag in such a manner that the upstream ply can be connected in a stable and economical manner to the support ply. The invention is characterised in that the upstream ply is embodied as a spun bonded non-woven, the continuous filaments of which are at least partially twisted or interwoven with the support ply.Type: GrantFiled: March 13, 2008Date of Patent: November 10, 2015Assignee: CARL FREUDENBERG KGInventors: Heiko Manstein, Robert Groten, Anthony Hollingsworth, Ingrid Ewald, Joachim Hendler, Klaus Veeser
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Patent number: 8871011Abstract: A method for manufacturing an electret filter element includes preparing fibers and producing, by a spray device, a spray mist of fluid droplets which include an electrical charge formed by an electric field between detaching fluid droplets and a counter-electrode. The fibers are passed through the spray mist so as to wet the fibers with the fluid droplets. The fibers are laid down to form a fibrous layer.Type: GrantFiled: August 27, 2009Date of Patent: October 28, 2014Assignee: Carl Freudenberg KGInventors: Klaus Veeser, Martin Krause, Toan-Hieu Giang, Jochen Zabold
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Patent number: 8481437Abstract: The invention relates to a thermally bound non-woven material containing a low-shrinkage dual-component core-sheath fiber consisting of a crystalline polyester core and a crystalline polyester sheath which has a melting point at least 10° C. lower than the core, the heat-shrinkage characteristic of said fiber being less than 10% at 170° C.Type: GrantFiled: November 22, 2011Date of Patent: July 9, 2013Assignee: Carl Freudenberg KGInventors: Armin Greiner, Klaus Veeser, Holger Schilling, Guenter Frey, Ralph Berkemann
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Publication number: 20120129032Abstract: The invention relates to a thermally bound non-woven material containing a low-shrinkage dual-component core-sheath fiber consisting of a crystalline polyester core and a crystalline polyester sheath which has a melting point at least 10° C. lower than the core, the heat-shrinkage characteristic of said fiber being less than 10% at 170° C.Type: ApplicationFiled: November 22, 2011Publication date: May 24, 2012Applicant: CARL FREUDENBERG KGInventors: Armin GREINER, Klaus VEESER, Holger SCHILLING, Günter FREY, Ralph BERKEMANN
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Patent number: 8124550Abstract: The invention relates to a thermally bound non-woven material containing a low-shrinkage dual-component core-sheath fiber consisting of a crystalline polyester core and a crystalline polyester sheath which has a melting point at least 10° C. lower than the core, the heat-shrinkage characteristic of said fiber being less than 10% at 170° C.Type: GrantFiled: March 4, 2006Date of Patent: February 28, 2012Assignee: Carl Freudenberg KGInventors: Armin Greiner, Klaus Veeser, Holger Schilling, Günter Frey, Ralph Berkemann
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Publication number: 20110168024Abstract: A method for manufacturing an electret filter element includes preparing fibers and producing, by a spray device, a spray mist of fluid droplets which include an electrical charge formed by an electric field between detaching fluid droplets and a counter-electrode. The fibers are passed through the spray mist so as to wet the fibers with the fluid droplets. The fibers are laid down to form a fibrous layer.Type: ApplicationFiled: August 27, 2009Publication date: July 14, 2011Applicant: CARL FREUDENBERG KGInventors: Klaus Veeser, Martin Krause, Toan-Hieu Giang, Jochen Zabold
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Publication number: 20080308490Abstract: The invention relates to a thermally bound non-woven material containing a low-shrinkage dual-component core-sheath fibre consisting of a crystalline polyester core and a crystalline polyester sheath which has a melting point at least 10° C. lower than the core, the heat-shrinkage characteristic of said fibre being less than 10% at 170° C.Type: ApplicationFiled: March 4, 2006Publication date: December 18, 2008Applicant: CARL FREUDENBERG KGInventors: Armin Greiner, Klaus Veeser, Holger Schilling, Gunter Frey, Ralph Berkemann
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Patent number: 6656400Abstract: A method for producing a pleated filter material from a nonwoven fabric having spacers for the pleated folds formed from the filter material itself, a formed fabric made of stretched synthetic fibers and thermoplastic and/or thermally cross-linked binding agent being heated in an oven to a temperature lying at least in the softening temperature range and/or the cross-linking temperature range of the binding agent, and subsequently, the formed fabric being formed between profiled calender rolls and cooled simultaneously.Type: GrantFiled: March 28, 2001Date of Patent: December 2, 2003Assignee: Firma Carl FreudenbergInventors: Klaus Veeser, Anthony Hollingsworth, Dirk Dantz
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Patent number: 6547860Abstract: A process for the manufacture of a triboelectrically charged nonwoven, wherein a fiber blend made of polyacrylnitrile fibers with a titer of ≦1.7 dtex and of polyolefine fibers with a titer of ≦1.7 dtex is freed from lubricating agents and antistatic agents by washing, is dried down to a moisture content of <1% by weight and is carded on a longitudinal or randomizing card into a triboelectrically charged web with a mass per area unit of 15-80 g/m2. This web is taken off by two simultaneously running rolls and a transfer roll, so that the web is laid on to a conveyor in machine direction, and bonded directly inside a bonding set, the unbonded web being forwarded via 1 to 3 points of transfer only.Type: GrantFiled: November 21, 2001Date of Patent: April 15, 2003Assignee: Firma Carl FreudenbergInventors: Holger Buchwald, Karl-Heinz Morweiser, Klaus Veeser
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Patent number: 6527834Abstract: A filter made of nonwoven fabric, paper or the like for gaseous media, having an electrically conductive coating made of a conductive substance of pulverizable materials, in particular from electrically conductive carbon-black particles and/or powdery metal particles or other pulverized materials, the carbon-black particles or metal particles being fixed to the filter fibers with the aid of binding agents, and the conductive coating being applied in a reticulated manner on the filtering layer.Type: GrantFiled: November 12, 1999Date of Patent: March 4, 2003Assignee: Firma Carl FreudenbergInventors: Kurt Jörder, Klaus Veeser, Mathias Pudleiner, Dirk Dantz
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Publication number: 20020121194Abstract: A process for the manufacture of a triboelectrically charged nonwoven, wherein a fiber blend made of polyacrylnitrile fibers with a titer of ≦1.7 dtex and of polyolefine fibers with a titer of ≦1.7 dtex is freed from lubricating agents and antistatic agents by washing, is dried down to a moisture content of <1% by weight and is carded on a longitudinal or randomizing card into a triboelectrically charged web with a mass per area unit of 15-80 g/m2. This web is taken off by two simultaneously running rolls and a transfer roll, so that the web is laid on to a conveyor in machine direction, and bonded directly inside a bonding set, the unbonded web being forwarded via 1 to 3 points of transfer only.Type: ApplicationFiled: November 21, 2001Publication date: September 5, 2002Inventors: Holger Buchwald, Karl-Heinz Morweiser, Klaus Veeser
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Publication number: 20010050136Abstract: A method for producing a pleated filter material from a nonwoven fabric having spacers for the pleated folds formed from the filter material itself, a formed fabric made of stretched synthetic fibers and thermoplastic and/or thermally cross-linked binding agent being heated in an oven to a temperature lying at least in the softening temperature range and/or the cross-linking temperature range of the binding agent, and subsequently, the formed fabric being formed between profiled calender rolls and cooled simultaneously.Type: ApplicationFiled: March 28, 2001Publication date: December 13, 2001Inventors: Klaus Veeser, Anthony Hollingsworth, Dirk Dantz
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Patent number: 6193773Abstract: A dust filter bag made of a fiber layer laminated together with a paper layer. The fiber layer is made of synthetic polymer fibers and is arranged on the downstream side of the paper layer. To increase the strength of the dust filter bag, the fiber layer contains melted polymer regions and by way of the polymer regions the fiber layer is additionally consolidated within itself and joined to the paper layer. The polymer regions have a welded area of 0.5 to 10% of the surface area, preferably 1 to 3%, thus resulting in sufficient laminate strength with a low pressure drop.Type: GrantFiled: July 21, 1999Date of Patent: February 27, 2001Assignee: Firma Carl FreudenbergInventors: Ulrich Schlör, Klaus Veeser
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Patent number: 5470485Abstract: An air filter material for intercepting dust is disclosed. The material is free of lubricants and antistatic agents, and consists of a blend of (I) polyolefin fibers and (II) polyacrylonitrile fibers that are geometrically stable. The fibers (I) are two-component polypropylene/polyethylene fibers of the core/jacket or side-by-side type, and fibers (II) are halogen-free. The fiber blend is washed during the manufacturing process after they are first combined.Type: GrantFiled: March 1, 1995Date of Patent: November 28, 1995Assignee: Firma Carl FreudenbergInventors: Karl-Heinz Morweiser, Klaus Veeser, Harald Stini
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Patent number: 4486493Abstract: The invention of this application relates to a cushion body, well suited for use as a seat cushion of a motor vehicle, consisting of a spring body which is deformable under a load, and is air and mositure permeable. The cushion also employs an air permeable cover material which is stretched over the cushion and is underlaid with a buffer layer which has a substantial content of cellulose fibers. The spring body consists of fibers with hydrophilic properties and a titer of 3 to 50 dtex, which fibers are combined to form a spatially oriented network, and are cemented together where they intersect.Type: GrantFiled: February 28, 1983Date of Patent: December 4, 1984Assignee: Firma Carl FreudenbergInventors: Holger Burmester, Klaus Veeser
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Patent number: 4394411Abstract: Structural panel of gypsum and an envelope, partly impressed therein, of a bonded mineral and/or fiberglass fabric which has on the inside facing the gypsum larger pores than on the outside, the fabric containing at least two kinds of fibers which are cemented together by a bonding agent, where the fibers with the larger diameter are arranged on the inside and the bonding agent contains 30 to 85 percent by weight aluminum, iron and/or silicon hydroxide.Type: GrantFiled: March 8, 1982Date of Patent: July 19, 1983Assignee: Firma Carl FreudenbergInventors: Manfred Krull, Udo Lobert, Dieter Stamm, Klaus Veeser