Patents by Inventor Daniel Witte

Daniel Witte 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: 20240300323
    Abstract: An enclosed volume is provided for performing operations in space, or on any astronomical object, in a manner separated from aspects of the external environment. The enclosed volume can be a flexible container for a satellite. The enclosed volume can include a membrane having a fluid barrier layer and being configured to contain a propellant gas or fluid; and an expulsion device configured to expel material from the membrane. In a stowed configuration, the flexible container is contained within the satellite, and in a deployed configuration, the flexible container extends away from the satellite. The flexible container can inflate from one shape, in the undeployed configuration, to another shape, in a deployed configuration. The other shape can be toroidal or other appropriate shapes. The flexible container can provide bipropellant, blowdown, and gas/fluid metering functionality. Entertainment and game play can be enabled by the enclosed volume involving robots and other devices.
    Type: Application
    Filed: May 17, 2024
    Publication date: September 12, 2024
    Inventors: Daniel Faber, James Bultitude, Jeremy Schiel, Eric Weinhoffer, Andrew Witte, Tyler Mincey
  • Publication number: 20240301623
    Abstract: A method for producing a transfer mixture by the direct dissolution method in a thin film evaporator (D) having a feed, a housing and a discharge, wherein the feed introduces a product consisting essentially of cellulose, water and a functional liquid into the housing, wherein an evaporator shaft (5) situated in the housing (4) rotationally wipes the product over the heated interior of the housing (4), wherein the product heats up and some of the water evaporates, so that the transfer mixture is obtained, wherein (a) the transfer mixture is discharged before the product substantially overheats; and (b) all heating surfaces of the thin film evaporator in contact with the product are subjected to a heating temperature, which is at least 20K above the temperature of the product.
    Type: Application
    Filed: January 12, 2022
    Publication date: September 12, 2024
    Applicant: List Technology AG
    Inventors: Manuel Steiner, Roland Kunkel, Daniel Witte, Judith Andrea Michelle Günther
  • Publication number: 20240075403
    Abstract: The invention relates to a thin film evaporator (D) for producing a transfer mixture according to the direct dissolution method, having a feed (1), a housing (4) and an outlet (2), wherein the feed (1) introduces a starting material, made of cellulose, water and a functional fluid, into the housing (4), wherein an evaporator shaft (5) situated in the housing (4) rotatingly sweeps the starting material over the heated interior of the housing (4), wherein the product is heated and some of the water evaporates so as to result in the transfer mixture, which flows to the outlet (2) together with a supply stream, wherein the through-flow capacity of the outlet (2) is greater than the supply stream.
    Type: Application
    Filed: January 12, 2022
    Publication date: March 7, 2024
    Applicant: List Technology AG
    Inventors: Manuel Steiner, Roland Kunkel, Daniel Witte, Judith Andrea Michelle Günther
  • Publication number: 20240076832
    Abstract: Mixing kneader for processing a transfer mixture into a molding solution, according to the direct dissolution method, having a feed, a housing and a discharge, wherein the feed introduces a product consisting essentially of cellulose, water and a functional liquid into the housing, wherein a kneader shaft situated in the housing rotationally mixes and kneads the product and sweeps wipes it over heated inner surfaces of the mixing kneader, wherein reducing the amount of undissolved particles in the product and the size of the particles are reduced, and evaporating some of the water evaporates to produce form a molding solution, wherein the process volume of the mixing kneader is determined only by the requirements of a molding solution flow capacity.
    Type: Application
    Filed: January 12, 2022
    Publication date: March 7, 2024
    Applicant: List Technology AG
    Inventors: Manuel Steiner, Roland Kunkel, Daniel Witte, Judith Andrea Michelle Günther
  • Publication number: 20220316095
    Abstract: The invention discloses a preparation method and a production device for producing a recycled fiber spinning solution with using a solvent, which comprises two or more vertical wiped film evaporators (3, 4, . . . ) connected with a single horizontal cylindrical kneading reactor. The aqueous mixture of cellulose and solvent and auxiliary agent is prepared into a spinnable cellulose spinning dope, which is characterized by injecting the material mixture into two or more vertical wiped film evaporators and a horizontal cylindrical kneading reactor, each unit is preferably equipped with a separate condensing system, and the vacuum system can be separately configured to share a vacuum system.
    Type: Application
    Filed: June 15, 2020
    Publication date: October 6, 2022
    Applicant: List Technology AG
    Inventors: Roland Kunkel, Daniel Witte, Sven König, Manuel Steiner, Weilie Wang
  • Patent number: 10442113
    Abstract: A method for treating in particular viscous, paste-like materials in a housing (1) with kneading elements (2, 3), in which at least one kneading element (2, 3) is to be monitored.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: October 15, 2019
    Assignee: List Technology AG
    Inventors: Martin Althaus, Roger Hafner, Daniel Witte, Karsten Güdemann
  • Patent number: 10163542
    Abstract: The method of manufacturing a natural ester, oil-based electrical insulation fluid by contacting refined, bleached, optionally winterized, and deodorized natural ester oil, e.g., soy oil, with an absorbent is improved by using as the absorbent a synthetic silicate absorbent comprising an alkali and/or alkaline earth metal, e.g., magnesium.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: December 25, 2018
    Assignee: Union Carbide Chemicals & Plastics Technology LLC
    Inventors: Suh Joon Han, Peter C. Dreux, Paul J. Caronia, Daniel Witte
  • Publication number: 20180053579
    Abstract: The method of manufacturing a natural ester, oil-based electrical insulation fluid by contacting refined, bleached, optionally winterized, and deodorized natural ester oil, e.g., soy oil, with an absorbent is improved by using as the absorbent a synthetic silicate absorbent comprising an alkali and/or alkaline earth metal, e.g., magnesium.
    Type: Application
    Filed: October 31, 2017
    Publication date: February 22, 2018
    Inventors: Suh Joon Han, Peter C. Dreux, Paul J. Caronia, Daniel Witte
  • Patent number: 9822881
    Abstract: A method for handling a product, in particular a viscous, pasty product, with at least one rotating shaft (3, 11) in a product space (5), a driving spindle (11) of the shaft (3) is mounted and sealed outside the product space (5) in a housing consisting of a plurality of parts (7, 8, 12). The sealing is brought about by at least two seals (2, 4), wherein a dynamic seal (2) follows an eccentric movement of the shaft (3) and takes on dynamic sealing of the rotating shaft (3), while another seal (4) compensates for an eccentric movement of the shaft (3) in relation to the housing by plastic or elastic deformation and therefore prevents a leakage between the housing part (12), which moves eccentrically, and a rigid housing (10).
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: November 21, 2017
    Assignee: List Holding AG
    Inventors: Daniel Witte, Alfred Kunz
  • Patent number: 9657412
    Abstract: A method for treating a mixture in a single-shaft or multi-shaft mixer (M), especially a kneader-mixer, especially for preparing a spinning solution. A solvent or solvent mixture is added to the product over the length of a product chamber in order to reduce a viscosity of the solvent or of the mixture and to increase an evaporative capacity. The viscosity of the solution or of the mixture is determined and/or modified in predetermined locations in the product chamber.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: May 23, 2017
    Assignee: List Technology AG
    Inventors: Daniel Witte, Christian Oecknick
  • Patent number: 9480933
    Abstract: A process for thermal separation of a solution comprised of a thermoplastic polymer and a solvent involves heating a solvent under pressure above a critical point of the solvent; decompressing the heated solvent in a first vessel, such that a polymer-rich and a low-polymer phase form; and supplying the polymer-rich phase to a second vessel. In embodiments, on entry into the second vessel, a pressure jump occurs, the pressure jump leading to a thermal flash in the second vessel such that a polymer part of the polymer-rich phase rises to at least 70%, and a resulting polymer-rich solution is provided.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: November 1, 2016
    Assignee: LIST HOLDING AG
    Inventors: Daniel Witte, Thomas Isenschmid, Manuel Steiner
  • Publication number: 20160251776
    Abstract: A method for treating a mixture in a single-shaft or multi-shaft mixer (M), especially a kneader-mixer, especially for preparing a spinning solution. A solvent or solvent mixture is added to the product over the length of a product chamber in order to reduce a viscosity of the solvent or of the mixture and to increase an evaporative capacity. The viscosity of the solution or of the mixture is determined and/or modified in predetermined locations in the product chamber.
    Type: Application
    Filed: September 26, 2014
    Publication date: September 1, 2016
    Applicant: LIST HOLDING AG
    Inventors: Daniel Witte, Christian Oecknick
  • Publication number: 20160107336
    Abstract: A method for treating in particular viscous, paste-like materials in a housing (1) with kneading elements (2, 3), in which at least one kneading element (2, 3) is to be monitored.
    Type: Application
    Filed: March 3, 2014
    Publication date: April 21, 2016
    Applicant: LIST HOLDING AG
    Inventors: Martin Althaus, Roger Hafner, Daniel Witte, Karsten Güdemann
  • Publication number: 20160009855
    Abstract: In a method for performing a reaction in a housing that has at least one feed point, at least one catalyst is mixed into the reactant, as a result of which the product reacts up to a desired degree of conversion.
    Type: Application
    Filed: February 8, 2013
    Publication date: January 14, 2016
    Inventor: Daniel Witte
  • Patent number: 9206528
    Abstract: A method for the production of molded bodies from a base substance, wherein the base substance is mixed with a solution for producing a molding solution, and the solution subsequently is at least partially removed from the mixture, and the molding solution is fed to a unit for molding, wherein the molding solution is diluted before molding.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: December 8, 2015
    Assignee: LIST HOLDING AG
    Inventors: Andreas Diener, Oliver Tretzack, Helmut Schildknecht, Daniel Witte
  • Publication number: 20150298022
    Abstract: A process for thermal separation of a solution comprised of a thermoplastic polymer and a solvent involves heating a solvent under pressure above a critical point of the solvent; decompressing the heated solvent in a first vessel, such that a polymer-rich and a low-polymer phase form; and supplying the polymer-rich phase to a second vessel. In embodiments, on entry into the second vessel, a pressure jump occurs, the pressure jump leading to a thermal flash in the second vessel such that a polymer part of the polymer-rich phase rises to at least 70%, and a resulting polymer-rich solution is provided.
    Type: Application
    Filed: July 1, 2015
    Publication date: October 22, 2015
    Inventors: Daniel Witte, Thomas Isenschmid, Manuel Steiner
  • Publication number: 20150273731
    Abstract: A method for implementing mechanical, chemical and/or thermal processes in a product which is located in a housing (1) with mixing and cleaning elements and/or transporting elements (6) on at least one shaft (4, 5), and is transported via the elements (6) from an inlet (2) to an output (10), the intention is for a cross section of the housing (1) to be adjusted in variable fashion at least in the longitudinal direction thereof.
    Type: Application
    Filed: September 26, 2013
    Publication date: October 1, 2015
    Applicant: LIST HOLDING AG
    Inventors: Pierre-Alain Fleury, Daniel Witte, Roland Kunkel, Alfred Kunz, Pierre Liechti
  • Publication number: 20150204445
    Abstract: A method for handling a product, in particular a viscous, pasty product, with at least one rotating shaft (3, 11) in a product space (5), a driving spindle (11) of the shaft (3) is mounted and sealed outside the product space (5) in a housing consisting of a plurality of parts (7, 8, 12). The sealing is brought about by at least two seals (2, 4), wherein a dynamic seal (2) follows an eccentric movement of the shaft (3) and takes on dynamic sealing of the rotating shaft (3), while another seal (4) compensates for an eccentric movement of the shaft (3) in relation to the housing by plastic or elastic deformation and therefore prevents a leakage between the housing part (12), which moves eccentrically, and a rigid housing (10).
    Type: Application
    Filed: July 10, 2013
    Publication date: July 23, 2015
    Inventors: Daniel Witte, Alfred Kunz
  • Patent number: 9079984
    Abstract: A process for thermal separation of a solution comprised of a thermoplastic polymer and a solvent involves heating a solvent under pressure above a critical point of the solvent; decompressing the heated solvent in a first vessel, such that a polymer-rich and a low-polymer phase form; and supplying the polymer-rich phase to a second vessel. In embodiments, on entry into the second vessel, a pressure jump occurs, the pressure jump leading to a thermal flash in the second vessel such that a polymer part of the polymer-rich phase rises to at least 70%, and a resulting polymer-rich solution is provided.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: July 14, 2015
    Assignee: List Holding AG
    Inventors: Daniel Witte, Thomas Isenschmid, Manuel Steiner
  • Publication number: 20150131401
    Abstract: A device for the controlled transport of viscous compounds and pastes in at least one process space (8) by at least one shaft (2), on which transport bars (4) are arranged and which rotates about a shaft axis (A), wherein centre axes (B) of the transport bars (4) run at an angle (7) with respect to the shaft axis (A), the centre axes (B) of transport bars (4.1, 4.2, 4.3) which follow one another in the direction of the shaft axis (A) should run offset in the circumferential direction with respect to one another and with respect to the shaft axis (A).
    Type: Application
    Filed: April 19, 2013
    Publication date: May 14, 2015
    Inventor: Daniel Witte