Patents by Inventor Werner Schaefer
Werner Schaefer 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: 8412111Abstract: According to some embodiments, a method includes placing a device under test (DUT) in a test chamber and applying a pulse-modulated RF wireless test signal to the DUT in the test chamber. The method further includes detecting an acoustic output of the DUT. In addition or as an alternative to applying the pulse-modulated test signal, the test signal strength may be at a level of 30 V/m or 90 V/m. If the DUT is a telephone, it may be coupled via a voice signal path to another telephone, and an output of the other telephone may also be detected.Type: GrantFiled: December 11, 2006Date of Patent: April 2, 2013Assignees: Goldman, Sachs & Co., Avaya Inc.Inventors: Vivek Talwar, Stephen Berger, Werner Schaefer, Jeff Rodman, Tony Griffiths, Joseph Liguori
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Patent number: 7815887Abstract: The invention relates to a conductive nonwoven fabric that is carbonized and/or graphitized and possesses a bending rigidity <8 taber, a density of 0.1 g/m3 to 0.5 g/m3, a thickness of 80 ?m to 500 ?m, and an electrical conductivity of 10 to 300 S/cm in the nonwoven fabric strip and 30 to 220 S/cm2 perpendicular to the nonwoven fabric strip.Type: GrantFiled: August 6, 2007Date of Patent: October 19, 2010Assignee: Carl Freudenberg KGInventors: Werner Schäfer, Kurt Jörder, Hans Rettig, Karim Salama, Achim Bock, Silke Wagener, Axel Helmbold
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Publication number: 20070159199Abstract: According to some embodiments, a method includes placing a device under test (DUT) in a test chamber and applying a pulse-modulated RF wireless test signal to the DUT in the test chamber. The method further includes detecting an acoustic output of the DUT. In addition or as an alternative to applying the pulse-modulated test signal, the test signal strength may be at a level of 30 V/m or 90 V/m. If the DUT is a telephone, it may be coupled via a voice signal path to another telephone, and an output of the other telephone may also be detected.Type: ApplicationFiled: December 11, 2006Publication date: July 12, 2007Inventors: Vivek Talwar, Stephen Berger, Werner Schaefer, Jeff Rodman, Tony Griffiths, Joseph Liguori
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Patent number: 6743835Abstract: The invention relates to a process for preparing nondusting free-flowing pigment concentrates with removal of the water from pigment suspensions comprising polymers and dispersants in a fluidized bed drier. The resulting bead-form pigment concentrates are nondusting and readily free-flowing. The invention further embraces the use of pigment concentrates prepared in this way for coloring plastics and polymers.Type: GrantFiled: December 5, 2001Date of Patent: June 1, 2004Assignee: Goldschmidt AGInventors: Werner Schäfer, Manfred Scheiba, Stefan Stadtmüller, Markus Weimann, Karlheinz Rümpler, Ulrich Walter
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Patent number: 6407019Abstract: A preform material for manufacturing a protective garment having a top material, in particular a firefighter's protective garment. The material is made of an insulating lining made up of an at least two-ply water-jet-consolidated nonwoven fabric having a weight per unit area of 80 g/m2 or lighter for each individual ply, a lining material having a weight per unit area of 120 g/m2 or lighter, that is quilted to the at least two-ply nonwoven fabric; and a semipermeable membrane, constituting a moisture barrier. After the at least two-ply water-jet-consolidated nonwoven fabric has been quilted to the lining material, the semipermeable membrane is laminated onto the outer side, facing away from the lining material, of the nonwoven fabric ply and has a weight per unit area of 20 to 30 g/m2.Type: GrantFiled: August 31, 1999Date of Patent: June 18, 2002Assignee: Firma Carl FreudenbergInventors: Werner Schäfer, Hans Rettig, Peter Grynaeus
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Patent number: 5880193Abstract: The preparation of pigment concentrates for the coloring of resin molding compositions in which the pigment is very finely dispersed is carried out successfully using, for the preparation of the pigment concentrates, a dispersant which contains the following components:from 0 to 90% by weight of a substantially amorphous poly-.alpha.-olefin,from 0 to 90% by weight of polyolefin wax,from 0 to 30% by weight of crystalline polyolefin, andfrom 1 to 50% by weight of a specific polyacrylic acid ester.Type: GrantFiled: April 25, 1996Date of Patent: March 9, 1999Assignee: HUELS AktiengesellschaftInventors: Fritz Berke, Volker Schrenk, Manfred Scheiba, Werner Schaefer, Guenter Hahn
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Patent number: 5032458Abstract: The invention concerns a polyester film with improved abrasion resistance, dimensional stability, drawability and slip properties. The film is characterized by the fact that it contains 0.005 to 5.0% by weight of organic, preferably hardened or crosslinked, particles with narrow particle size distribution in a range between 0.01 and 5 microns, as well as a nucleating agent in an amount from 0.01 to 10% by weight, both values related to the weight of the polymers which form the film.Type: GrantFiled: September 28, 1990Date of Patent: July 16, 1991Assignee: Hoechst AktiengesellschaftInventors: Hermann Dallmann, Werner Schaefer, Wolfgang Gawrisch, Hartmut Hensel
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Patent number: 4921670Abstract: A process is described for the production of an oriented, heat-set polyester film including an admixture of polydiorganosiloxane in the amount of 0.001 to 2% by weight, as well as further additives, such as inert inorganic and/or organic particles. The thermoplastic material is melted in an extruder and extruded through an appropriate die to give a cast film, is then quenched, reheated, stretch oriented, and heat set. The characteristic criteria is the addition of the polydiorganosiloxane to the polydiorganosiloxane-free polyester in the form of a masterbatch.Type: GrantFiled: July 13, 1988Date of Patent: May 1, 1990Assignee: Hoechst AktiengesellschaftInventors: Hermann Dallmann, Lothar Bothe, Guenther Crass, Werner Schaefer
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Patent number: 4902138Abstract: The thermal conductivity in a gas blend is measured in order to determine concentration using several different temperatures for the gas but the same sensor, which includes a Silicon carrier of a few hundred micrometers thick and being provided with an electrically insulating layer; carrying a sputtered on or vapor deposited, meandershaped thin film resistance; a pit in the carrier underneath the resistance and the insulating layer, there being one or more perforations in the insulation to permit access of gas to the interior of the pit; a cover plate made also of silicon and of comparable thickness dimensions as the carrier, and also having a pit of comparable dimensions as the first mentioned pit is disposed above the carrier so that said pits are aligned and constitute a common measuring chamber; and a diffusion channel in the cover plate for feeding a gas through diffusion so that the measuring chamber is defined by the communicating pits.Type: GrantFiled: April 4, 1988Date of Patent: February 20, 1990Assignee: Hartmann & Braun AGInventors: Heinz-Dieter Goeldner, Bertold Horn, Thomas Liedtke, Wolf-Ruediger Marx, Werner Schaefer
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Patent number: 4801640Abstract: The invention concerns a polyester film with improved abrasion resistance, dimensional stability, drawability and slip properties. The film is characterized by the fact that it contains 0.005 to 5.0% by weight of organic, preferably hardened or crosslinked, particles with narrow particle size distribution in a range between 0.01 and 5 microns, as well as a nucleating agent in an amount from 0.01 to 10% by weight, both values related to the weight of the polymers which form the film.Type: GrantFiled: January 9, 1986Date of Patent: January 31, 1989Assignee: Hoechst AktiengesellschaftInventors: Hermann Dallmann, Werner Schaefer, Wolfgang Gawrisch, Hartmut Hensel
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Patent number: 4751139Abstract: A biaxially oriented and heat set film having improved abrasion resistance is described, whose distinguishing characteristics are that it has a density of more than 1.38 g/cm.sup.3 and that the following relationship exists between the orientation birefringence (.DELTA.n), the reduced specific viscosity (RSV), and the temper peak (Tp) of the film:RSV-.vertline..DELTA.n.vertline.-Tp/250.gtoreq.0with.vertline..DELTA..vertline.=.vertline.n.sub.MD -n.sub.TD .vertline..In addition, a process for manufacturing the abrasion resistant film is disclosed.Type: GrantFiled: February 19, 1986Date of Patent: June 14, 1988Assignee: Hoechst AktiengesellschaftInventors: Hartmut Hensel, Hermann Dallmann, Werner Schaefer
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Patent number: 4746703Abstract: This invention relates to a biaxially or multi-axially oriented, heat set film, which has on its surface numerous unevenesses, which comprise indentations around a protrusion. The protrusions comprise crosslinked or hardened organic particles having an average particle size of from 0.01 to 5.0 microns and having a narrow particle size distribution. The film surface has a mean surface roughness value Ra of from 0.005 to 0.10 micron.Type: GrantFiled: January 8, 1986Date of Patent: May 24, 1988Assignee: Hoechst AktiengesellschaftInventors: Hermann Dallmann, Walter Seifried, Werner Schaefer, Siegfried Janocha, Harmut Hensel
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Patent number: 4682031Abstract: A infrared gas analyzer having measuring and reference chambers and receiving chambers respectively disposed on radiation exit sides of the measuring and reference chambers and being filled with a particular gas; a pressure communicating duct system including a particular chamber interconnects the two receiving chambers is partitioned by a foil of polyvinylidenfluoride being piezo electrically effective to generate an electrical signal on account of a pressure differential between the two receiving chambers, as indication of the concentration of the measuring gas, i.e., host gas that flows through the measuring chamber.Type: GrantFiled: April 25, 1986Date of Patent: July 21, 1987Assignee: Hartmann & Braun AGInventors: Walter Fabinski, Werner Schaefer