Patents by Inventor Andreas Mäurer

Andreas Mäurer 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).

  • Patent number: 10989186
    Abstract: The invention relates to a method for operating a piston pump (10) which is driven by means of a coil (1) of an electromagnet. A piston (2) of the piston pump (10) can be moved in a cylinder (3) for pumping purposes by means of the electromagnet. A voltage (U) is applied to the coil (1) during a switch-on period such that a current flows through the coil (1) and the piston (2) is accelerated, said voltage being applied by means of an actuation device (11). A time curve of an electric state variable (I, U) of the coil (1) is qualitatively detected, and the curve or a curve derived therefrom is analyzed in order to detect an impact of the piston (2) against a stop. The invention further relates to an actuation device and a piston pump.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: April 27, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Andrea Krusch, Andreas Gutscher, Siamend Flo, Thorsten Allgeier, Walter Maeurer
  • Patent number: 10934410
    Abstract: Disclosed is a method for recycling polyolefin containing waste by using a solvent with a specific Hansen parameter and contacting this mixture with a liquid filtration aid before separating the polyolefin from the mixture. The method includes the steps of mixing the polyolefin containing waste with a solvent having a Hansen parameter ?H from 0.0 to 3.0 MPa1/2; contacting this mixture with a liquid filtration aid having a Hansen parameter ?H>4.0 MPa1/2; and separating the polyolefin from the mixture.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: March 2, 2021
    Assignee: Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V.
    Inventors: Andreas Mäurer, Martin Schlummer, Fabian Knappich, Tanja Fell, Arthur Berrang
  • Publication number: 20190233609
    Abstract: The invention refers to a method for recycling polyolefin containing waste by using a solvent with a specific Hansen parameter and contacting this mixture with a liquid filtration aid before separating the polyolefm from the mixture. The method comprises the following steps: Mixing the polyolefm containing waste with a solvent having a Hansen parameter ?H from 0.0 to 3.0 M Pa1/2; Contacting this mixture with a liquid filtration aid having a Hansen parameter ?H>4.0 M Pa1/2; and Separating the polyolefin from the mixture.
    Type: Application
    Filed: September 13, 2017
    Publication date: August 1, 2019
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E. V.
    Inventors: Andreas MÄURER, Martin SCHLUMMER, Fabian KNAPPICH, Tanja FELL, Arthur BERRANG
  • Patent number: 8225937
    Abstract: Disclosed is a method for separating differently additivated polymers based on polystyrene, the copolymers and/or blends thereof. This method is used in particular when recycling flame-retardant plastic materials, in particular from old electrical appliances. The method is characterised by a density separation with at least one liquid or gaseous separation medium.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: July 24, 2012
    Assignee: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung, e.V.
    Inventors: Martin Schlummer, Andreas Mäurer
  • Patent number: 8138232
    Abstract: The invention relates to a method for recycling plastic materials which contain at least two polymers, copolymers or blends thereof based on polystyrene. The plastic material is thereby mixed with a solvent for the polymers, copolymers or blends. Subsequently a precipitation is effected by addition of a corresponding precipitant so that then the gelatinous precipitation product can be separated from the further components of the plastic material. The method is used for recycling of any plastic materials, in particular of plastic materials from electronic scrap processing and from shredder light fractions.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: March 20, 2012
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.
    Inventors: Andreas Maeurer, Martin Schlummer, Otto Beck
  • Patent number: 7935736
    Abstract: The invention relates to a method for recycling polyesters or polyester mixtures from polyester-containing waste, in which the polyester or the polyester mixture is dissolved in a solvent and subsequently free-flowing particles are precipitated herefrom with a precipitant. The precipitant is thereby chosen such that subsequent separation of precipitant and solvent is made possible in a simple manner.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: May 3, 2011
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Andreas Mäurer, Udo Knauf, Gerd Wolz, Michael Frankl, Otto Beck
  • Publication number: 20080281002
    Abstract: The invention relates to a method for recycling plastic materials which contain at least two polymers, copolymers or blends thereof based on polystyrene. The plastic material is thereby mixed with a solvent for the polymers, copolymers or blends. Subsequently a precipitation is effected by addition of a corresponding precipitant so that then the gelatinous precipitation product can be separated from the further components of the plastic material. The method is used for recycling of any plastic materials, in particular of plastic materials from electronic scrap processing and from shredder light fractions.
    Type: Application
    Filed: June 8, 2006
    Publication date: November 13, 2008
    Inventors: Andreas Maeurer, Martin Schlummer, Otto Beck
  • Patent number: 6217932
    Abstract: The invention concerns a method of obtaining haemin. In order to separate haemin from the globin part, slaughter blood is subjected to an acid treatment at a pH of between 1.2 and 3 and a temperature of between 45 and 80° C., the haemin then being separated from globin.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: April 17, 2001
    Assignee: Fraunhofer-Gesell schaft zur Forderung der Angewandten Forschung E.V.
    Inventors: Thomas Luck, Andreas Mäurer