Patents by Inventor Hans Dahl

Hans Dahl 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).

  • Publication number: 20200207938
    Abstract: The invention relates to the use of polyolethers as additives in aqueous polymer dispersions for producing porous polymer coatings, preferably for producing porous polyurethane coatings.
    Type: Application
    Filed: August 2, 2018
    Publication date: July 2, 2020
    Applicant: Evonik Operations GmbH
    Inventors: Michael Klostermann, Jan Marian Von Hof, Martin Glos, Christian Eilbracht, Verena Dahl, Oliver Springer, Hans Henning Wenk
  • Patent number: 10676495
    Abstract: The invention provides ester derivatives of rhamnolipids, formulations comprising these, and the use thereof.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: June 9, 2020
    Assignee: Evonik Operations GmbH
    Inventors: Xin Lu, Sandra Nattland, Monica Desiree van Logchem, Hans Henning Wenk, Fabien Cabirol, Verena Dahl, Ralph Scheuermann, Kathrin Daniela Brandt, Jochen Kleinen
  • Patent number: 10544384
    Abstract: The invention provides compositions comprising at least one rhamnolipid and at least one siloxane, characterized in that the weight ratio of rhamnolipid to siloxane is from 5,000,000:1 to 100:1, preferably from 500,000:1 to 1000:1, particularly preferably from 25,000:1 to 2500:1. In another embodiment, the invention provides compositions include rhamnolipid in an amount of from 0.5% by weight to 70% by weight, preferably from 2% by weight to 60% by weight, particularly preferably from 3% by weight to 50% by weight, where the percentages by weight refer to the total composition.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: January 28, 2020
    Assignee: Evonik Degussa GmbH
    Inventors: Ralph Scheuermann, Marcel Pickl, Michael Ferenz, Hans Henning Wenk, Martin Schilling, Kathrin Daniela Brandt, Verena Dahl
  • Publication number: 20190307657
    Abstract: The present invention relates to oral care compositions comprising at least one biosurfactant and fluoride.
    Type: Application
    Filed: January 31, 2018
    Publication date: October 10, 2019
    Applicant: Evonik Degussa GmbH
    Inventors: Hans Henning Wenk, Kathrin Daniela Brandt, Martin Schilling, Verena Dahl, Jochen Kleinen, Joachim Venzmer
  • Publication number: 20190300728
    Abstract: The invention relates to a process for producing a porous polyurethane coatings, using a polyol ester as additives in an aqueous polymer dispersion, the process comprising the steps of a) providing a mixture comprising an aqueous polymer dispersion, a polyol ester, and an additive, b) foaming the mixture to give a homogeneous, fine-cell foam, c) adding at least one thickener to establish the desired viscosity of the wet foam, d) applying a coating of the foamed polymer dispersion to a suitable carrier, e) drying the coating. The invention further relates to a phosphorylated polyol ester.
    Type: Application
    Filed: July 13, 2017
    Publication date: October 3, 2019
    Applicant: Evonik Degussa GmbH
    Inventors: Michael Klostermann, Martin Glos, Jan Marian Von Hof, Verena Dahl, Christian Eilbracht, Oliver Springer, Hans Henning Wenk
  • Publication number: 20190256542
    Abstract: The invention provides ester derivatives of rhamnolipids, formulations comprising these, and the use thereof.
    Type: Application
    Filed: February 15, 2017
    Publication date: August 22, 2019
    Applicant: Evonik Degussa GmbH
    Inventors: Xin Lu, Sandra Nattland, Monica Desiree van Logchem, Hans Henning Wenk, Fabien Cabirol, Verena Dahl, Ralph Scheuermann, Kathrin Daniela Brandt, Jochen Kleinen
  • Patent number: 10331166
    Abstract: A system includes first and second handheld devices. The first device transmits an acoustic signal, and the acoustic signal is reflected from an input object. The second device receives a received signal derived from a reflection of the acoustic signal from the input object. The second device determines information about the location or motion of the input object based on the received signal, and thereby detects a gesture performed by the input object.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: June 25, 2019
    Assignee: ELLIPTIC LABORATORIES AS
    Inventors: Tobias Dahl, Hans Jørgen Bang
  • Publication number: 20070091664
    Abstract: A ferroelectric memory comprises a plurality of memory cells and circuitry to sense data thereof. Power supply decoupling circuitry may decouple supplies of the memory device during a portion of reading data. Additionally, ferroelectric domains of the memory cells may receive a series of polarization reversals to improve domain alignment and malleability. To drive reference cells of the memory with such polarization reversals, a multiplexer may be configured to swap a data bitline with a reference bitline so that reference cells may be accessed as regular data cells. While reading a ferroelectric memory, a self-timer circuit may monitor characteristics of the ferroelectric material and adjust an integration duration for a sense amplifier based on the monitored characteristics. A sampling-comparator may sample a signal related to the ferroelectric material at one instant, which may then be used subsequently thereafter by the self-timer circuit to influence an integration duration of the sense amplifier.
    Type: Application
    Filed: November 21, 2006
    Publication date: April 26, 2007
    Applicant: Intel Corporation
    Inventors: David Chow, Hans Dahl, Trygve Willassen
  • Publication number: 20050201140
    Abstract: A ferroelectric memory comprises a plurality of memory cells and circuitry to sense data thereof. Power supply decoupling circuitry may decouple supplies of the memory device during a portion of reading data. Additionally, ferroelectric domains of the memory cells may receive a series of polarization reversals to improve domain alignment and malleability. To drive reference cells of the memory with such polarization reversals, a multiplexer may be configured to swap a data bitline with a reference bitline so that reference cells may be accessed as regular data cells. While reading a ferroelectric memory, a self-timer circuit may monitor characteristics of the ferroelectric material and adjust an integration duration for a sense amplifier based on the monitored characteristics. A sampling-comparator may sample a signal related to the ferroelectric material at one instant, which may then be used subsequently thereafter by the self-timer circuit to influence an integration duration of the sense amplifier.
    Type: Application
    Filed: May 9, 2005
    Publication date: September 15, 2005
    Applicant: Intel Corporation
    Inventors: David Chow, Hans Dahl, Trygve Willassen
  • Publication number: 20050174848
    Abstract: A sensing circuit. The circuit includes an integrator to sense charge release from a passive electronic device and a comparator to interpret the charge release as one of at least two data states. The circuit also includes a compensation module to generate a compensation signal as needed and a self-timing module to adjust timing of the integrator sensing based upon a predefined voltage level.
    Type: Application
    Filed: April 6, 2005
    Publication date: August 11, 2005
    Inventors: David Chow, Hans Dahl
  • Patent number: 6475343
    Abstract: Process and apparatus for dewatering a fibrous material web. The process includes guiding the fibrous material web through a dewatering zone, and directing a plurality of gas pressure pulses of a pressurized displacement gas one after the other onto a surface of the fibrous material web within the dewatering zone. The apparatus includes a device for forming a plurality of gas pressure pulses which are arranged one after the other within the dewatering zone. The plurality of gas pressure pulses are directed onto a surface of the fibrous material web.
    Type: Grant
    Filed: October 26, 2000
    Date of Patent: November 5, 2002
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Joachim Grabscheid, Karl Josef Böck, Ulrich Begemann, Thomas Elenz, Peter Mirsberger, Hans Dahl, Hannes Vomhoff, David Beck
  • Patent number: 6425980
    Abstract: Press device and process for treating a material web. The press device includes a first shoe press and a second shoe press. The first and the second shoe press are successively arranged in a web run direction. A transfer suction roll is positioned between the first shoe press and the second shoe press and is adapted to at least partially suction the material web and to guide the material web in a closed draw through at least one of the first and the second shoe presses. The process may includes at least partially suctioning the material web with the transfer suction roll, and guiding the material web in a closed draw through at least one of the first and the second shoe presses.
    Type: Grant
    Filed: April 14, 1999
    Date of Patent: July 30, 2002
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Peter Mirsberger, Hans Dahl, Andreas Meschenmoser
  • Patent number: 6381868
    Abstract: Apparatus and process for dewatering a material web. The apparatus includes at least one pressure chamber formed by at least four substantially parallel rolls, a device arranged to introduce a pressurized gas into the at least one pressure chamber, and the at least four substantially parallel rolls being displaceable relative to one another to change an effective area of the at least one pressure chamber. The material web is guided through the at least one pressure chamber. The process includes pressurizing at least one pressure chamber with a gas medium, guiding the material web through the pressure chamber, driving water out of the material web using gas pressure within the at least one pressure chamber, and changing an effective area of the pressure chamber so as to adjust a dewatering capacity.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: May 7, 2002
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Joachim Grabscheid, Karl Josef Böck, Ulrich Begemann, Thomas Elenz, Peter Mirsberger, Hans Dahl, Hannes Vomhoff, David Beck
  • Patent number: 6342126
    Abstract: Wire section, guidance device, and process of forming a web in a machine for producing a fibrous material web. The device include two revolving endless wire belts, a twin wire zone formed between the two revolving endless wire belts, and a revolving flexible support belt located in a vicinity of the twin wire zone and positioned to support at least one of the two wire belts in a support region. The flexible support belt is generally guided along an at least essentially circular cylindrical path, and the support region includes a support path having an average curvature radius that is greater than a curvature radius of the essentially circular path. The process includes supporting at least one of the two endless wire belts with the flexible support belt in a support region, rotating the flexible support belt along a generally circular path, and deflecting the support belt from the generally circular path in the support region, whereby the support belt in the support regions travels along a support path.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: January 29, 2002
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Joachim Grabscheid, Volker Schmidt-Rohr, Dieter Egelhof, Johann Moser, Hans Dahl, Roger Wiedenmann
  • Patent number: 6235158
    Abstract: A wet section (10) of a paper or cardboard machine and a process for the manufacture of a fibrous material web are suggested. The wet section (10) exhibits a double-screen segment (US), in which two screens (16, 18) are guided about parallel to one another and into which a fibrous material suspension (27) is introduced. The double-screen segment (US) is looped around a roll (22). The means (30, 32, 38) for the immobilization of the fibrous material suspension in the double-screen segment (US) are provided on the roll (22), for the formation of the fibrous material web. Moreover, the wet section exhibits means (32, 34, 36; 34, 36, 66) for further draining of the fibrous material web.
    Type: Grant
    Filed: November 4, 1998
    Date of Patent: May 22, 2001
    Assignee: Voith Sulzer Papiermaschinen GmbH
    Inventors: Hans Dahl, Gerhard Kotitschke, Volker Schmidt-Rohr, Wilfried Kraft, Hans-Jürgen Wulz, Klaus Esslinger, Wolfgang Mayer, Andreas Meschenmoser, Gunther Mohrhardt
  • Patent number: 6059929
    Abstract: A three layer headbox for producing a multilayer fiber web. The headbox has top and bottom walls inclined toward each other toward the outlet of the headbox. Top and a bottom separating blades in the headbox, the top blade defining a first chamber toward the top wall, the bottom blade being below defining a second chamber between the blades and also defining a third chamber between the bottom blade and the bottom wall. A respective pulp inlet to each of the three chambers. One of the top and bottom blades being hingedly supported at its upstream end to be adjustable in position for affecting the speed of pulp suspension in respective layers in the chambers affected by the orientation of the blade. The pulp suspension layers passing through a headbox are delivered to a paper machine forming section wire and the three streams from the headbox are combined directly before or upon impingement on the wire.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: May 9, 2000
    Assignee: Voith Sulzer Papiermaschinen GmbH
    Inventor: Hans Dahl
  • Patent number: 6027612
    Abstract: The invention concerns the wire section of a papermaking machine and a method of removing water from a fiber web in that section. A fiber suspension is discharged from a headbox on at least one and usually between two wires in the forming section. The fiber suspension is dewatered until it eventually reaches the point of immobility at which the fiber orientation is fixed. The rate of removal of water transverse to the direction of travel of the web is controlled at regions across the web. In particular, the rate of water removal is decreased at the edge regions of the wire and the web, as compared with the center region, to improve the transverse formation profile of the web.
    Type: Grant
    Filed: September 11, 1997
    Date of Patent: February 22, 2000
    Assignee: Voith Sulze Papiermaschinen GmbH
    Inventors: Ulrich Begemann, Gerhard Kotitschke, Hans Dahl, Volker Schmidt-Rohr, Karl Josef Bock
  • Patent number: 5635032
    Abstract: In a double wire former of a paper machine, a first continuous wire (1) is fed onto an at least partially curved guiding surface (4) so as to converge with a second wire (2), wherein the guiding surface (4) is movable in a form-locked manner relative to the wires. After the dewatering section described above, a further guiding surface (7) follows which, in advantageous embodiments, has an opposite sense of curvature and is fixedly located.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: June 3, 1997
    Assignee: Sulzer-Escher Wyss GmbH
    Inventors: Alfred Bubik, Hans Dahl, Josef Dom, Karl Muller, Heinz Steckenreuter, Elmer Weisshuhn
  • Patent number: 5551171
    Abstract: The invention pertains to a winding device for a fiber web having a carrier drum that is at least partially enveloped by the fiber web, wherein a carrier axis for the fiber web is adapted to fed or moved to the carrier drum and is adapted to contact the carrier drum jacket in an axially parallel winding position, with the goal being to further develop winding devices which limit the danger of web tearing and act against the formation of folds in the fiber webs, with this being achieved in that the fiber web is transferred, from a device, which device precedes the carrier drum in the web moving direction, together with a driving band, to the carrier drum and transferred there from the driving band to the carrier drum.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: September 3, 1996
    Assignee: Sulzer-Escher Wyss GmbH
    Inventor: Hans Dahl
  • Patent number: 5320713
    Abstract: In order to regulate dewatering of the fiber suspension and the formation of the paper web between the upper and lower wires of the papermaking machines, upper ledges are provided along with the upper wire. These upper ledges are particularly constructed so as to have uniform design. Between these upper ledges, there is left free the same distance or spacing. This distance is not smaller than the width of each upper ledge. The individual distances between the upper ledges can be closed by insertable inserts so that the dewatering can be forcibly accomplished at mutually separated zones. Along the lower wire, there are provided lower ledges at a table, and between these lower ledges, it can be adjusted varying distances or spacing therebetween. The mutual distance or spacing between the lower ledges, according to a favorable construction, is always greater than the width of the individual upper ledges plus the distance or spacing of an upper ledge from the next neighboring upper ledge.
    Type: Grant
    Filed: May 20, 1993
    Date of Patent: June 14, 1994
    Assignee: Sulzer Escher Wyss GmbH
    Inventors: Alfred Bubik, Hans Dahl, Otto Hildebrand, Karl Muller, Jorg Walter