Patents by Inventor Bernd Stein

Bernd Stein 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: 20210297023
    Abstract: Provided is a method for controlling the cold gas temperature of a cooling gas of a closed generator cooling gas circuit of a generator having at least one cooler through which a cooling fluid flows. The method includes: a) defining cold gas temperature setpoint values in dependence on the stator and rotor current of the generator; b) detecting the current cold gas temperature; c) detecting the current stator and rotor current; d) determining the cold gas temperature setpoint value associated with the stator and rotor current detected in step c); e) regulating the cold gas temperature by changing the volumetric flow of the cooling fluid supplied to the at least one cooler as a function of the difference between the current cold gas temperature detected in step b) and the cold gas temperature setpoint value determined in step d); and f) repeating steps b) to e) at defined time intervals.
    Type: Application
    Filed: June 27, 2017
    Publication date: September 23, 2021
    Inventors: Monja Evenkamp, Markus Murawa-Galen, Hendrik Steins, Bernd Strobel
  • Publication number: 20210252748
    Abstract: The invention relates to a film forming tool for laminating a component with a laminating element or for molding a thermoplastic film with an embossed geometry; an alternative method for embossed shell production and use of a respective film forming tool. In particular, the invention relates to a manufacturing method for embossed shells which saves both manufacturing time and manufacturing costs and which allows a long service life as well as a high molding quality. For this purpose, the mold shell of a film forming tool is provided with a ceramic layer which has an embossment structure, allowing a transfer of the embossment structure to the laminating element with the laminating method.
    Type: Application
    Filed: November 13, 2017
    Publication date: August 19, 2021
    Inventors: Rupert Gschwendtner, -lng. Bernd Stein
  • Patent number: 10703576
    Abstract: The invention relates to a system for manufacturing medical pouches and a method for manufacturing medical pouches in a system, said pouch being made from two layers of plastic film and at least one component per pouch, the system comprising a group of positioning aids for the components as well as a group of supports for the positioning aids, the positioning aids being supported on the supports which are conveyed in an endless path with the aid of a guiding mechanism, the system further comprising a component application station designed to bring a component, which has been introduced into the station by a positioning aid with the aid of a support, into a joining connection with the plastic film.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: July 7, 2020
    Assignee: KIEFEL GMBH
    Inventor: Bernd Stein
  • Patent number: 10668669
    Abstract: The aim of the invention is to avoid the risk of contamination of a bag for medical purposes, in particular to significantly reduce the amount of residual particles of material during the cutting of a tube for access to the bag. The invention proposes a system (1) for producing a bag for medical purposes comprising a tube transfer station (2) having transfer means (3) for transferring a tube (11), which is being transported towards the tube transfer station (2), to a holder (10) and for separating there a tube section (17) transferred to the holder (10) from a remainder (18) of the tube (11), in order to then render the separated tube section (17) connectible to two film layers to form an access to the bag.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: June 2, 2020
    Assignee: Kiefel GmbH
    Inventors: Bernd Stein, Rupert Gschwendtner
  • Publication number: 20190144146
    Abstract: Assembly for manufacturing a medical bag from a plastic film, with filling means for filling the bag with a liquid through a port of the bag, with closing means for closing the port after filling of the bag, with different stations in which various production process steps are performed, and with a transport unit for transferring the bag being produced along these stations, the assembly being adapted to perform filling of the bag and closing of the bag at a combined filling and closing station.
    Type: Application
    Filed: June 14, 2017
    Publication date: May 16, 2019
    Applicant: KIEFEL GmbH
    Inventor: Bernd Stein
  • Publication number: 20180147116
    Abstract: In order significantly to reduce the risk of contamination of a bag for medical purposes, in particular due to residual particles of tube material caused during cutting of a tube for access to the bag, the invention proposes a system (1) for producing a bag for medical purposes, comprising a tube transfer station (2) with a transfer means (3) for transferring a tube (11) coming into the tube transfer station (2) to a holder (10) and for the severing there of a tube section (17) transferred to the holder (10) from a remaining portion (18) of the incoming tube (11) in order subsequently to be able to make the severed tube section (17) connectable to two film layers for forming an access to the bag, wherein the tube transfer station (2) has a tube-tension-holding means (15) on the holder side and also a tube-pulling means (16), which means are designed to introduce tensile forces (19) between the severed tube section (17) and the remaining portion (18) of the incoming tube (11) while the severing takes place.
    Type: Application
    Filed: February 17, 2016
    Publication date: May 31, 2018
    Inventor: Dr. -Ing Bernd STEIN
  • Patent number: 9981904
    Abstract: The invention relates to a process for preparing primary amines, which comprises hydrogenating at least one nitrile in an apparatus (V1) in the presence of an unsupported cobalt catalyst to obtain at least one primary amine, with recurrent or continuous addition of at least one compound (I) to the apparatus (V1), said compound (I) comprising at least one component selected from alkali metal, alkaline earth metal and rare earth metal.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: May 29, 2018
    Assignee: BASF SE
    Inventors: Christof Wilhelm Wigbers, Wolfgang Maegerlein, Thomas Krug, Johann-Peter Melder, Thomas Heidemann, Bernd Stein
  • Publication number: 20180065315
    Abstract: The aim of the invention is to avoid the risk of contamination of a bag for medical purposes, in particular to significantly reduce the amount of residual particles of material during the cutting of a tube for access to the bag. The invention proposes a system (1) for producing a bag for medical purposes comprising a tube transfer station (2) having transfer means (3) for transferring a tube (11), which is being transported towards the tube transfer station (2), to a holder (10) and for separating there a tube section (17) transferred to the holder (10) from a remainder (18) of the tube (11), in order to then render the separated tube section (17) connectible to two film layers to form an access to the bag.
    Type: Application
    Filed: February 19, 2016
    Publication date: March 8, 2018
    Inventors: Bernd STEIN, Rupert GSCHWENDTNER
  • Publication number: 20170348896
    Abstract: A method for producing a thermoformed product on a single machine with several stations and with different tools includes the following steps: (a) melting and homogenizing plastic granules and providing the plastic melt at a preform station; (b) producing a preform at the preform station in a preform cavity; (c) transferring the preform by a transfer carrier to a thermoforming station at the same machine, the thermoforming station having a thermoforming tool having a thermoforming cavity; (d) preferably heating the preform during the transfer; (e) thermoforming of the thermoformed product in the thermoforming cavity. Advantageously, the final thermoformed product is produced directly from the plastic granules using only a single machine, and in particular without any waste, when the preform is dimensioned in such a way that it does not present any excess with respect to the final shape of the product to be produced.
    Type: Application
    Filed: December 17, 2015
    Publication date: December 7, 2017
    Inventors: Erwin WABNIG, Gerhard WIESER, Thomas HALLETZ, Bernd STEIN
  • Publication number: 20170275232
    Abstract: The invention relates to a process for preparing primary amines, which comprises hydrogenating at least one nitrile in an apparatus (V1) in the presence of an unsupported cobalt catalyst to obtain at least one primary amine, with recurrent or continuous addition of at least one compound (I) to the apparatus (V1), said compound (I) comprising at least one component selected from alkali metal, alkaline earth metal and rare earth metal.
    Type: Application
    Filed: August 25, 2015
    Publication date: September 28, 2017
    Applicant: BASF SE
    Inventors: Christof Wilhelm WIGBERS, Wolfgang MAEGERLEIN, Thomas KRUG, Johann-Peter MELDER, Thomas HEIDEMANN, Bernd STEIN
  • Publication number: 20170239906
    Abstract: The invention relates to a system for manufacturing medical pouches and a method for manufacturing medical pouches in a system, said pouch being made from two layers of plastic film and at least one component per pouch, the system comprising a group of positioning aids for the components as well as a group of supports for the positioning aids, the positioning aids being supported on the supports which are conveyed in an endless path with the aid of a guiding mechanism, the system further comprising a component application station designed to bring a component, which has been introduced into the station by a positioning aid with the aid of a support, into a joining connection with the plastic film.
    Type: Application
    Filed: October 19, 2015
    Publication date: August 24, 2017
    Inventor: Bernd Stein
  • Patent number: 9192227
    Abstract: An apparatus (1) for producing bristle arrangements for brushes, in particular toothbrushes, having a bristle supply (2) and an apparatus (3) for extracting individual bundles (4) of bristles from the bristle supply (2), and also having a transporting apparatus for transporting the bundles (4) of bristles by way of at least one hollow line (8) by means of a stream of gas or air in perforations in a bundle-retaining plate, is characterized in that the apparatus (3) for extracting the bundles (4) of bristles from the bristle supply (2) has at least one bundle holder (6), and in that the bundle holder(s) (6) of the extraction means (3), the inner contour (10) of the hollow line(s) (8) and the perforations in the bundle-retaining plate are each contoured in a manner corresponding to the bundle contour which is desired in the bristle arrangement.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: November 24, 2015
    Assignee: ZAHORANSKY AG
    Inventors: Bernd Stein, Bernhard Rees, Ingo Kumpf, Florian Kiefer
  • Patent number: 9174201
    Abstract: Process for the continuous preparation of an amine by reaction of a primary or secondary alcohol, aldehyde and/or ketone with hydrogen and a nitrogen compound selected from the group consisting of ammonia, primary and secondary amines at a temperature in the range from 60 to 300° C. in the presence of a catalyst comprising copper oxide and aluminum oxide, wherein the reaction takes place in the gas phase and the catalytically active composition of the catalyst before reduction with hydrogen comprises from 20 to 75% by weight of aluminum oxide (Al2O3), from 20 to 75% by weight of oxygen-comprising compounds of copper, calculated as CuO, from 0 to 2% by weight of oxygen-comprising compounds of sodium, calculated as Na2O, and less than 5% by weight of oxygen-comprising compounds of nickel, calculated as NiO, and the shaped catalyst body has a pellet shape having a diameter in the range from 1 to 4 mm and a height in the range from 1 to 4 mm.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: November 3, 2015
    Assignee: BASF SE
    Inventors: Martin Ernst, Bernd Stein, Steffen Maas, Jörg Pastre, Thorsten Johann, Johann-Peter Melder
  • Patent number: 9000218
    Abstract: The present application relates to a process for preparing secondary amines by aminating excess primary or secondary alcohols with primary amines in the liquid phase in the presence of copper-comprising catalysts.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: April 7, 2015
    Assignee: BASF SE
    Inventors: Christof Wilhelm Wigbers, Johann-Peter Melder, Bernd Stein
  • Patent number: 8981093
    Abstract: Process for preparing piperazine of the formula I by reacting diethanolamine (DEOA) of the formula II with ammonia in the presence of hydrogen and a supported, metal-containing catalyst has been found, wherein the catalytically active mass of the catalyst, prior to its reduction with hydrogen, comprises oxygen-containing compounds of aluminum, copper, nickel and cobalt and in the range from 0.2 to 5.0% by weight of oxygen-containing compounds of tin, calculated as SnO, and the reaction is carried out in the liquid phase at an absolute pressure in the range from 160 to 220 bar, a temperature in the range from 180 to 220° C., using ammonia in a molar ratio to DEOA used of from 5 to 25 and in the presence of 0.2 to 9.0% by weight of hydrogen, based on the total amount of DEOA used and ammonia.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: March 17, 2015
    Assignee: BASF SE
    Inventors: Roland Bou Chedid, Johann-Peter Melder, Ulrich Abel, Roman Dostalek, Nina Challand, Bernd Stein, Michael Jödecke
  • Patent number: 8933223
    Abstract: A process for preparing a cyclic tertiary amine of the formula I where A is a C4-alkylene group, a C5-alkylene group or a —(CH2)2—B—(CH2)2— group, where B is oxygen (O) or an N—R1 radical and R1 is C1-C5-alkyl, aryl or C5-C7-cycloalkyl, and the radical R2 is a linear or branched C2-C16-alkyl, C5-C7-cycloalkyl or C7-C20-aralkyl, in which (i) an amino alcohol II from the group consisting of 1,4-aminobutanol, 1,5-aminopentanol, aminodiglycol (ADG) and aminoethylethanolamine of the formula IIa where R1 is as defined above or hydrogen (H), in which case R1=R2 in the amine I, is reacted with a primary or secondary alcohol R2OH (III) at a temperature in the range from 150 to 270° C. in the liquid phase in the presence of a copper-comprising heterogeneous catalyst in a reactor.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: January 13, 2015
    Assignee: BASF SE
    Inventors: Christof Wilhelm Wigbers, Johann-Peter Melder, Bernd Stein, Harald Meiβner
  • Patent number: 8927712
    Abstract: Process for the preparation of a mono-N-alkylpiperazine of the formula I in which R1 is C1- to C5-alkyl or 2-(2-hydroxyethoxy)ethyl, by reacting diethanolamine (DEOA) of the formula II with a primary amine of the formula H2N—R1 (III) in the presence of hydrogen and a catalyst molding, where the reaction is carried out in the liquid phase at an absolute pressure in the range from 150 to 250 bar and the amination is carried out by means of a catalyst molding, the precursor of which can be prepared according to a process in which (i) an oxidic material comprising copper oxide, aluminum oxide and lanthanum oxide is provided, (ii) pulverulent metallic copper and/or copper flakes and optionally graphite is added to the oxidic material, (iii) the mixture resulting from step ii is shaped to give a molding, where the oxidic material is obtainable by simultaneous or successive precipitation of the component copper oxide, of the component aluminum oxide and of the component lanthanum oxide and subsequent dry
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: January 6, 2015
    Assignee: BASF SE
    Inventors: Roland Bou Chedid, Johann-Peter Melder, Ulrich Abel, Roman Dostalek, Bernd Stein
  • Patent number: 8884015
    Abstract: Process for the preparation of a mono-N-alkylpiperazine of the formula I in which R1 is C1- to C5-alkyl or 2-(2-hydroxyethoxy)ethyl, by reacting diethanolamine (DEOA) of the formula II with a primary amine of the formula H2N—R1 (III) in the presence of hydrogen and a supported, metal-containing catalyst, where the catalytically active mass of the catalyst, prior to its reduction with hydrogen, comprises oxygen-containing compounds of aluminum, copper, nickel and cobalt and, in the range from 0.2 to 5.0% by weight, oxygen-containing compounds of tin, calculated as SnO, and the reaction is carried out in the liquid phase at an absolute pressure in the range from 95 to 145 bar.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: November 11, 2014
    Assignee: BASF SE
    Inventors: Roland Bou Chedid, Johann-Peter Melder, Ulrich Abel, Roman Dostalek, Bernd Stein
  • Patent number: 8734617
    Abstract: Processes comprising: (a) reacting dimethylamine and ethylene oxide to form a product mixture comprising N,N-dimethylethanolamine and N,N-dimethylaminoethoxyethanol; (b) distilling the product mixture to obtain a bottom fraction comprising N,N-dimethylaminoethoxyethanol; and (c) distilling the bottom fraction to separate at least a portion of the N,N-dimethylaminoethoxyethanol from the bottom fraction; and apparatus for carrying out said processes.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: May 27, 2014
    Assignee: BASF SE
    Inventors: Frank-Friedrich Pape, Alfred Krause, Johann-Peter Melder, Bernd Stein, Joachim-Thierry Anders, Frank Haese
  • Patent number: RE45240
    Abstract: A process for preparing pure triethanolamine (TEOA) by continuously distillatively separating an ethanolamine mixture comprising TEOA and diethanolamine (DEOA), by distilling off DEOA in a distillation column (DEOA column) and supplying the resulting bottom stream comprising TEOA to a downstream column (TEOA column) in which the pure TEOA is withdrawn as a side draw stream, wherein the residence time of the ethanolamine mixture in the bottom of the DEOA column is <20 minutes.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: November 11, 2014
    Assignee: BASF SE
    Inventors: Johann-Peter Melder, Gunther Van Cauwenberge, Tom Fremau, Jürgen Moors, Thilo Hahn, Bernd Stein