Patents by Inventor Helmut Friedrich

Helmut Friedrich 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: 11078707
    Abstract: A safety contact strip for a closing edge includes an inner shell facing the closing edge and being formed by a coextrudate of a first electrically insulating plastic. An outer shell spaced apart from the inner shell is formed by a coextrudate of a second electrically insulating plastic. Switching chambers respectively retained by at least one web between the inner and outer shells are formed with the outer shell. Two switching layers spaced apart from one another are formed in each switching chamber by a coextrudate of a third electrically conductive plastic. An electrical conductor is embedded in each of the switching layers as a further coextrudate.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: August 3, 2021
    Assignee: ASO GmbH Antriebs- und Steuerungstechnik
    Inventors: Helmut Friedrich, Nick Klause, Hubert Stroop
  • Publication number: 20210123284
    Abstract: A co-extruded safety contact strip includes at least one contact or switching chamber situated in a section or profile and containing contactor or switching strips. One end of the base of the section is pivotally connected to a first side part and the other end of the base can be form-lockingly locked onto a second side piece. A method for securing the safety contact strip is also provided.
    Type: Application
    Filed: March 7, 2019
    Publication date: April 29, 2021
    Inventors: HELMUT FRIEDRICH, NICK KLAUSE
  • Patent number: 10908097
    Abstract: Measurement methods are known for determining the concentration of an ingredient in a body of ceramic or glassy material, in which the optical path length or the signal propagation time of a measurement wave penetrating the body of ceramic or glassy material in a measurement direction is determined and evaluated. Starting therefrom, in order to indicate a non-destructive method for determining a concentration of an ingredient in a body of ceramic or glassy material, which is also suitable for measurement in the production process of the body concerned, it is suggested according to one embodiment that modulated gigahertz radiation is used as the measurement wave.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: February 2, 2021
    Assignee: Heraeus Quarzglas GmbH & Co. KG
    Inventor: Helmut Friedrich
  • Publication number: 20200149337
    Abstract: A safety contact strip for a closing edge includes an inner shell facing the closing edge and being formed by a coextrudate of a first electrically insulating plastic. An outer shell spaced apart from the inner shell is formed by a coextrudate of a second electrically insulating plastic. Switching chambers respectively retained by at least one web between the inner and outer shells are formed with the outer shell. Two switching layers spaced apart from one another are formed in each switching chamber by a coextrudate of a third electrically conductive plastic. An electrical conductor is embedded in each of the switching layers as a further coextrudate.
    Type: Application
    Filed: April 23, 2018
    Publication date: May 14, 2020
    Inventors: HELMUT FRIEDRICH, NICK KLAUSE, HUBERT STROOP
  • Publication number: 20190162678
    Abstract: Measurement methods are known for determining the concentration of an ingredient in a body of ceramic or glassy material, in which the optical path length or the signal propagation time of a measurement wave penetrating the body of ceramic or glassy material in a measurement direction is determined and evaluated. Starting therefrom, in order to indicate a non-destructive method for determining a concentration of an ingredient in a body of ceramic or glassy material, which is also suitable for measurement in the production process of the body concerned, it is suggested according to one embodiment that modulated gigahertz radiation is used as the measurement wave.
    Type: Application
    Filed: November 28, 2018
    Publication date: May 30, 2019
    Applicant: Heraeus Quarzglas GmbH & Co. KG
    Inventor: Helmut FRIEDRICH
  • Patent number: 9982940
    Abstract: The invention relates to a process for drying a moist polymeric material to obtain a dried polymeric material, comprising the steps of: mixing the moist polymeric material with an aqueous solution of a carbohydrate to afford a mixture of the moist polymeric material with the carbohydrate; and heating and/or filtering the mixture of the moist polymeric material with the carbohydrate to remove an amount of volatiles to obtain a predried polymeric material having a volatiles content VCpre-dried (pre-drying step); fluidizing the pre-dried material in a fluidized bed in order to further remove an amount of volatiles to obtain the dried polymeric material having a volatiles content VCdried (fluidized bed drying step); and withdrawing and collecting the dried polymeric material from the fluidized bed; wherein VCpre-dried is higher than VCdried and the moist polymeric material comprises at least a polymeric material, said polymeric material comprises fluorine permanently bonded to said polymeric material.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: May 29, 2018
    Assignee: Patheon Austria GmbH & Co KG
    Inventors: Martin Helmut Friedrich Hanbauer, Herwig Landschützer
  • Publication number: 20160200665
    Abstract: The invention relates to a novel synthesis route towards R-biphenylalaninol and to the intermediates applied in this synthesis route. The process according to the invention and the intermediate compounds are useful in the synthesis of pharmaceutically active compounds.
    Type: Application
    Filed: August 21, 2014
    Publication date: July 14, 2016
    Inventors: Axel Zimmermann, Petrus Johannes Hermsen, Martin Helmut Friedrich Hanbauer
  • Publication number: 20150198367
    Abstract: The invention relates to a process for drying a moist polymeric material to obtain a dried polymeric material, comprising the steps of: mixing the moist polymeric material with an aqueous solution of a carbohydrate to afford a mixture of the moist polymeric material with the carbohydrate; and heating and/or filtering the mixture of the moist polymeric material with the carbohydrate to remove an amount of volatiles to obtain a predried polymeric material having a volatiles content VCpre-dried (pre-drying step); fluidizing the pre-dried material in a fluidized bed in order to further remove an amount of volatiles to obtain the dried polymeric material having a volatiles content VCdried (fluidized bed drying step); and withdrawing and collecting the dried polymeric material from the fluidized bed; wherein VCpre-dried is higher than VCdried and the moist polymeric material comprises at least a polymeric material, said polymeric material comprises fluorine permanently bonded to said polymeric material.
    Type: Application
    Filed: August 9, 2013
    Publication date: July 16, 2015
    Inventors: Martin Helmut Friedrich Hanbauer, Herwig Landschützer
  • Patent number: 7671118
    Abstract: A stabilizer system for stabilizing halogen-containing polymers comprising a perchlorate salt and at least one indole compound, a composition comprising such a stabilizer system, process for stabilizing a chlorine-containing polymer using such a stabilizer system, and an article manufacture comprising PVC stabilized by such a stabilizer system.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: March 2, 2010
    Assignee: Chemtura Vinyl Additives, GmbH
    Inventors: Wolfgang Wehner, Hans-Helmut Friedrich
  • Patent number: 7612133
    Abstract: The invention relates to a process for preparing a stabilized suspension/emulsion polymer of halogen-containing monomers with addition of a polymer stabilizer mixture compatible with the polymerization medium prior to, during or directly after the polymerization process, and to the polymers prepared by this process.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: November 3, 2009
    Assignee: Chemtura Vinyl Additives GmbH
    Inventors: Karl-Josef Kuhn, Hans-Helmut Friedrich
  • Publication number: 20090170988
    Abstract: A stabilizer system for stabilizing halogen-containing polymers against thermal degradation, the stabilizer system comprising: (a) at least one perfluoroalkanesulphonate salt; and (b) at least one alkanolamine wherein the at least one alkanolamine has the general formula (I)
    Type: Application
    Filed: March 3, 2009
    Publication date: July 2, 2009
    Applicant: Crompton Vinyl AdditivesGmbH
    Inventors: Wolfgang WEHNER, Hans-Helmut Friedrich
  • Patent number: 7393887
    Abstract: A composition and process is disclosed for the stabilization of halogen-containing polymers. In particular, chlorine-containing polymers such as poly vinyl chloride (PVC) are stabilized by incorporating of a stabilizer mixture having at least a perchlorate salt and an alkanolamine.
    Type: Grant
    Filed: April 3, 2006
    Date of Patent: July 1, 2008
    Assignee: Crompton Corporation
    Inventors: Hans-Helmut Friedrich, Karl-Josef Kuhn, Wolfgang Wehner, Thomas Hopfmann
  • Patent number: 7358286
    Abstract: Disclosed are stabilizer mixtures comprising at least a) one alkanolamine or one reaction product of a monofunctional or polyfunctional epoxide and ammonia or a monofunctional or polyfunctional dialkyl(aryl)amine or monoalkyl(aryl)amine, and b) one uracil or one initial product and an optional perchlorate salt.
    Type: Grant
    Filed: December 20, 2003
    Date of Patent: April 15, 2008
    Assignee: Chemtura Vinyl Additives GmbH
    Inventors: Thomas Hopfmann, Hans-Helmut Friedrich, Karl-Josef Kuhn, Wolfgang Wehner
  • Publication number: 20070299175
    Abstract: The invention relates to a process for preparing a stabilized suspension/emulsion polymer of halogen-containing monomers with addition of a polymer stabilizer mixture compatible with the polymerization medium prior to, during or directly after the polymerization process, and to the polymers prepared by this process.
    Type: Application
    Filed: August 28, 2007
    Publication date: December 27, 2007
    Inventors: Karl-Josef Kuhn, Hans-Helmut Friedrich
  • Publication number: 20060270765
    Abstract: The invention relates to stabilising systems for stabilising chlorinated polymers. The inventive stabilising systems contain a) at least one type of perfluoroalkane sulfonate salt and b) at least one or several indoles of general formula (I) and/or urea of general formula (II) and/or alcanolamines of general formula (III) and/or amonouracils.
    Type: Application
    Filed: April 7, 2004
    Publication date: November 30, 2006
    Inventors: Wolfgang Wehner, Hans-Helmut Friedrich
  • Publication number: 20060235124
    Abstract: The invention relates to a mixture of stabilisers for the stabilisation of chlorinated polymers, comprising at least a) a sulphate ester salt and/or a sulphonate salt of formula (I): [R(O)aSO3]1M and b) an alkanolamine of formula (II), where M=alkali, earth alkali, lanthanide (Cer) or aluminium cation, t=metal cation valence of 1, 2 or 3; s=0 or 1, R=C1-C22 a phenyl, C7-C10 phenylalkyl, C7 -C24 alkylphenyl, x=1, 2 or 3: y=1, 2, 3, 4, 5 or 6; n=1-10. R1, R2 independently=H.
    Type: Application
    Filed: April 2, 2004
    Publication date: October 19, 2006
    Inventors: Wolfgang Wehner, Hans-Helmut Friedrich, Karl-Josef Kuhn, Thomas Hopfmann
  • Publication number: 20060192179
    Abstract: A stabilizer system for stabilizing halogen-containing polymers comprising a perchlorate salt and at least one indole compound, a composition comprising such a stabilizer system, process for stabilizing a chlorine-containing polymer using such a stabilizer system, and an article manufacture comprising PVC stabilized by such a stabilizer system.
    Type: Application
    Filed: March 28, 2006
    Publication date: August 31, 2006
    Inventors: Wolfgang Wehner, Hans-Helmut Friedrich
  • Publication number: 20060183830
    Abstract: A composition and process is disclosed for the stabilization of halogen-containing polymers. In particular, chlorine-containing polymers such as poly vinyl chloride (PVC) are stabilized by incorporating of a stabilizer mixture having at least a perchlorate salt and an alkanolamine.
    Type: Application
    Filed: April 3, 2006
    Publication date: August 17, 2006
    Inventors: Hans-Helmut Friedrich, Karl-Josef Kuhn, Wolfgang Wehner, Thomas Hopfmann
  • Patent number: 7077981
    Abstract: The invention relates to stabilizer systems, containing at least: a) a perchlorate salt; b) at least one or more compounds from the group consisting of carbamides, indole derivatives and enamines of formula (I), wherein n=1 or 2 and X=O or NR1; n=3–6 and X=O; R1=H, C1–C4-alkyl, C2–C6-alkenyl, C6–C10-aryl, C7–C18-alkaryl or C7–C18-aralkyl; R2 (if n=1)=C1–C22-alkyl, C2–C22-alkenyl or aryl, preferably phenyl, optionally substituted with up to 3 hydroxy, C1–C4-alkoxy or C1–C9-alkyl; or R2 (if n=2–6)=linear or branched C1-22-alkylene, optionally interrupted by one or more O or S atoms, wherein R2 (if n=3) can also be a C2–C3-alkyl trisubstituted isocyanurate; if X=NH R2 can also be H. Said stabilizer systems are suitable for stabilizing halogen-containing polymers, more particularly PVC.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: July 18, 2006
    Assignee: Crompton Vinyl Additives GmbH
    Inventors: Wolfgang Wehner, Hans-Helmut Friedrich
  • Publication number: 20060148941
    Abstract: Compositions comprising a chlorinated polymer and at least one compound of formula (I) where R1 or R2=linear or branched C3-C22 alkyl, unsubstituted or substituted with C1-C4 alkyl/alkoxy and/or hydroxy phenyl, unsubstituted or substituted by C1-C4 alkyl/alkoxy and/or hydroxy phenyl C1-C4 alkyl, linear or branched C3-C18 alkenyl, C3-C8— cycloalkyl, C3-C10 alkyl or C3-C10 hydroxyalkyl or acetoxy/benzoyloxy C2-C10 alkyl interrupted by at least one oxygen atom, as stabilisers for halogenated polymers.
    Type: Application
    Filed: November 19, 2003
    Publication date: July 6, 2006
    Inventors: Wofgang Wehner, Hans-Helmut Friedrich