Patents by Inventor Hans Kramer

Hans Kramer 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: 11939997
    Abstract: A device for transporting a medium includes at least one channel which extends in an axial direction and through which the medium is guided. The channel is enclosed by an electrically conductive inner envelope that is connected to a first potential equalization conductor. An electrically conductive outer envelope is provided between the channel and an electrically conductive outer casing and is connected to an electrically conductive second potential equalization conductor. Arranged between the channel and the outer envelope is an electrically insulating intermediate layer which is produced from heat-insulating material.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: March 26, 2024
    Assignees: CUNOVA GMBH, AGT-PSG GMBH & CO. KG
    Inventors: Peter Böhlke, Raimund Boldt, Peter Daniewski, Eduard Krämer, Hans-Günther Wobker, Gerhard Hefter
  • Publication number: 20230312808
    Abstract: Rigid polyurethane foams are made using a mixture of polyols that includes 4 to 33% by weight of triisopropanolamine. The mixture of polyols is reacted with an aromatic polyisocyanate in the presence of a blowing agent, a foam-stabilizing surfactant and a urethane catalyst to produce the foam. The foams are useful as thermal insulation layers in multilayer thermal insulation assemblies such as appliance cabinets and walls for industrial and commercial freezers and refrigerators.
    Type: Application
    Filed: August 23, 2021
    Publication date: October 5, 2023
    Inventors: Thomas Mosciatti, Cecelia Girotti, Carsten Berghaus, Hans Kramer
  • Publication number: 20220289894
    Abstract: Polyurethane thermal insulating foam is made in the presence of a small amount of cis- and/or trans-1,1,1,4,4,4-hexafluorobut-2-ene and a hydrocarbon blowing agent. Very low lambda values are obtained.
    Type: Application
    Filed: August 14, 2020
    Publication date: September 15, 2022
    Inventors: Hans Kramer, Thomas Mosciatti
  • Patent number: 10125235
    Abstract: A storage stable isocyanate-reactive composition has ethylene oxide content from 1 wt % to 50 wt %, based on the total weight of an isocyanate-reactive component that includes a polyol component, a catalyst component, and a blowing agent component. The polyol component includes at least one polyol, the catalyst component includes at least one amine catalyst, and the blowing agent component includes at least one hydrohaloolefin based blowing agent. The isocyanate-reactive component is storable at least at one of room temperature and a higher temperature for a period of at least 1 day with a less than 10 second change in gel time when reacted with an isocyanate component at an isocyanate index from 100 to 150, compared to when the same isocyanate-reactive component is stored for a period of less than 1 day at room temperature and reacted with the same isocyanate component at the same isocyanate index from 100 to 150.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: November 13, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Rossella Riccio, Vanni Parenti, Hans Kramer, Melissa M. Rose
  • Patent number: 9893510
    Abstract: An electronic circuit for protecting a load against over-voltage is disclosed. The electronic circuit comprises an input port for receiving a voltage and an output port for feeding the voltage to the load. The electronic circuit further comprises a switching unit arranged to switch on and off the voltage from the input port. Moreover, the electronic circuit comprises a capacitive component arranged to receive the voltage when the switching unit is switched on and is otherwise arranged to feed voltage to the output port. Furthermore, the electronic circuit comprises a comparing unit configured to control the switching unit to be switched off when a value at the output port exceeds a first threshold; and to control the switching unit to be switched on when the value is below a second threshold.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: February 13, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventor: Hans Kramer
  • Patent number: 9649794
    Abstract: A method of reducing the number or size of voids in a polyurethane comprises reacting the formulation components in a container having an inner surface, or having a liner that has an inner surface, that has been modified to reduce the shear forces that normally accompany introduction of such components into a container. This is done by modifying the inner container's or container liner's surface by profiling and/or engraving it, or by including as a liner a mesh. The profiling and/or engraving or mesh serves to alter the formulation's flow dynamics such that the polyurethane has fewer and/or smaller voids, i.e., has a more uniform density, than polyurethanes formed without the modification.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: May 16, 2017
    Assignee: Dow Global Technologies
    Inventors: Miguel A. Prieto Goubert, Adrian J. Birch, Luis G. Zalamea, Hans Kramer
  • Patent number: 9580539
    Abstract: Insulating unit are disclosed which are prepared by a cavity-filling, fast-gelling rigid polyurethane foam based on a formulation comprising a polyol component which contains at least 5 weight percent of an amine-initiated polyols and 1.4 to 4 parts by weight of a catalyst package whereby the catalyst package contains at least one amine catalyst and the weight percent nitrogen present in the amine-initiated polyol to weight percent nitrogen present in the catalyst system is from 2 to 8. The formulation is injected into the cavity and the pressure in the cavity is subjected to reduced atmospheric pressure to achieve the rigid foam having a thermal conductivity of less than about 19 mW/mK at 10° C. average plate temperature.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: February 28, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Hans Kramer, Vanni Parenti, Francois M. Casati, Timothy A. Morley
  • Publication number: 20170002165
    Abstract: A storage stable isocyanate-reactive composition has ethylene oxide content from 1 wt % to 50 wt %, based on the total weight of an isocyanate-reactive component that includes a polyol component, a catalyst component, and a blowing agent component. The polyol component includes at least one polyol, the catalyst component includes at least one amine catalyst, and the blowing agent component includes at least one hydrohaloolefin based blowing agent. The isocyanate-reactive component is storable at least at one of room temperature and a higher temperature for a period of at least 1 day with a less than 10 second change in gel time when reacted with an isocyanate component at an isocyanate index from 100 to 150, compared to when the same isocyanate-reactive component is stored for a period of less than 1 day at room temperature and reacted with the same isocyanate component at the same isocyanate index from 100 to 150.
    Type: Application
    Filed: March 20, 2015
    Publication date: January 5, 2017
    Inventors: Rossella RICCIO, Vanni PARENTI, Hans KRAMER, Melissa M. ROSE
  • Patent number: 9420717
    Abstract: A plug-in unit that is configured to stacking in an electronic equipment unit is protected during replacement of an adjacent plug-in unit in the electronic equipment unit by providing at least one fender on at least one side of the plug-in unit.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: August 16, 2016
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Hans Kramer
  • Publication number: 20160207231
    Abstract: A method of reducing the number or size of voids in a polyurethane comprises reacting the formulation components in a container having an inner surface, or having a liner that has an inner surface, that has been modified to reduce the shear forces that normally accompany introduction of such components into a container. This is done by modifying the inner container's or container liner's surface by profiling and/or engraving it, or by including as a liner a mesh. The profiling and/or engraving or mesh serves to alter the formulation's flow dynamics such that the polyurethane has fewer and/or smaller voids, i.e., has a more uniform density, than polyurethanes formed without the modification.
    Type: Application
    Filed: February 11, 2016
    Publication date: July 21, 2016
    Inventors: Miguel A. Prieto Goubert, Adrian J. Birch, Luis G. Zalamea, Hans Kramer
  • Publication number: 20160200889
    Abstract: Rigid polyurethane foam is made in a vacuum assisted process using a blowing agent mixture that includes water and hydrofluoroolefin and/or hydrofluorochloroolefin. In preferred embodiments, the blowing agent mixture further includes a hydro carbon such as cyclopentane.
    Type: Application
    Filed: September 18, 2014
    Publication date: July 14, 2016
    Inventors: Vanni Parenti, Rossella Riccio, Hans Kramer
  • Publication number: 20150344611
    Abstract: Insulating unit are disclosed which are prepared by a cavity-filling, fast-gelling rigid polyurethane foam based on a formulation comprising a polyol component which contains at least 5 weight percent of an amine-initiated polyols and 1.4 to 4 parts by weight of a catalyst package whereby the catalyst package contains at least one amine catalyst and the weight percent nitrogen present in the amine-initiated polyol to weight percent nitrogen present in the catalyst system is from 2 to 8. The formulation is injected into the cavity and the pressure in the cavity is subjected to reduced atmospheric pressure to achieve the rigid foam having a thermal conductivity of less than about 19 mW/mK at 10° C. average plate temperature.
    Type: Application
    Filed: August 10, 2015
    Publication date: December 3, 2015
    Inventors: Hans Kramer, Vanni Parenti, Francois M. Casati, Timothy A. Morley
  • Publication number: 20150326005
    Abstract: An electronic circuit for protecting a load against over-voltage is disclosed. The electronic circuit comprises an input port for receiving a voltage and an output port for feeding the voltage to the load. The electronic circuit further comprises a switching unit arranged to switch on and off the voltage from the input port. Moreover, the electronic circuit comprises a capacitive component arranged to receive the voltage when the switching unit is switched on and is otherwise arranged to feed voltage to the output port. Furthermore, the electronic circuit comprises a comparing unit configured to control the switching unit to be switched off when a value at the output port exceeds a first threshold; and to control the switching unit to be switched on when the value is below a second threshold.
    Type: Application
    Filed: December 17, 2012
    Publication date: November 12, 2015
    Inventor: Hans Kramer
  • Patent number: 8717032
    Abstract: A protection switching system in a power supply distribution system, comprises at least one protection switch (25) comprising a controllable semiconductor arranged to conduct current through the power supply line in a normal mode, a control unit (27) arranged to place the at least one protection switch in a test mode in which the current is reduced compared to the normal mode, registration means (28, 29) for registering a test mode value of at least one electrical characteristic in the power supply line that will be affected when the test mode is applied, a monitoring unit (30; 47) arranged to evaluate the at least one electrical characteristic and determine, based on the evaluation, whether or not an action should be taken. If a malfunction is detected an alarm is issued to indicate to service personnel that the protection switch should be replaced.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: May 6, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Johan Horman, Hans Kramer
  • Patent number: 8585780
    Abstract: The present invention relates to a laundry shading process with specific blue or violet bisazo-dyes alone or in combination with a photocatalyst. Further aspects of the invention are a composition comprising at least one photocatalyst and at least one of the specific bisazo-dyes. The composition is particularly useful for shading textiles during laundry. Further aspects of the invention are a detergent composition, a fabric softener composition containing these dyes or mixtures of these dyes and photocatalysts and novel blue or violet bisazo-dyes.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: November 19, 2013
    Assignee: BASF SE
    Inventors: Carmen Araya Hernandez, Frank Bachmann, Hans Kramer, Wolfgang Schlenker, Deepak M. Rane
  • Patent number: 8585784
    Abstract: The present invention relates to new compounds, which are molecular combinations of a phthalocyanine and a mono-azo dyestuff linked via specific linking groups and to a process for their preparation. Further aspects are shading compositions using these compounds.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: November 19, 2013
    Assignee: BASF SE
    Inventors: Hans Kramer, Frank Bachmann, Christof Dosenbach, Mini Jeevanath, Georg Roentgen, Adolf Käser, Roger Wolfgang Basler
  • Publication number: 20130285272
    Abstract: A method of reducing the number or size of voids in a polyurethane comprises reacting the formulation components in a container having an inner surface, or having a liner that has an inner surface, that has been modified to reduce the shear forces that normally accompany introduction of such components into a container. This is done by modifying the inner container's or container liner's surface by profiling and/or engraving it, or by including as a liner a mesh. The profiling and/or engraving or mesh serves to alter the formulation's flow dynamics such that the polyurethane has fewer and/or smaller voids, i.e., has a more uniform density, than polyurethanes formed without the modification.
    Type: Application
    Filed: September 30, 2011
    Publication date: October 31, 2013
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Miguel A. Prieto Goubert, Adrian J. Birch, Luis G. Zalamea Bustillo, Hans Kramer
  • Publication number: 20130247309
    Abstract: The present invention relates to a laundry shading process with specific blue or violet bisazo-dyes alone or in combination with a photocatalyst. Further aspects of the invention are a composition comprising at least one photocatalyst and at least one of the specific bisazo-dyes. The composition is particularly useful for shading textiles during laundry. Further aspects of the invention are a detergent composition, a fabric softener composition containing these dyes or mixtures of these dyes and photocatalysts and novel blue or violet bisazo-dyes.
    Type: Application
    Filed: May 13, 2013
    Publication date: September 26, 2013
    Applicant: BASF SE
    Inventors: CARMEN ARAYA HERNANDEZ, FRANK BACHMANN, HANS KRAMER, WOLFGANG SCHLENKER, DEEPAK M. RANE
  • Publication number: 20130235495
    Abstract: A plug-in unit that is configured to stacking in an electronic equipment unit is protected during replacement of an adjacent plug-in unit in the electronic equipment unit by providing at least one fender on at least one side of the plug-in unit.
    Type: Application
    Filed: March 6, 2012
    Publication date: September 12, 2013
    Applicant: Telefonaktiebolaget L M Ericsson (Publ)
    Inventor: Hans Kramer
  • Publication number: 20130184366
    Abstract: The present invention discloses aromatic polyester polyols suitable for blending with other polyols or other materials mutually compatible with the polyester polyols to achieve polyurethane and polyisocyanurate products. In particular the present invention discloses polyester polyols comprising the reaction of: A) an aromatic component comprising 80 mole percent or greater of terephthalic acid; B) a polyether polyol having a nominal functionality greater than 2 and less than or equal to 4, a molecular weight of 250 to 1000 and has a polyoxypropylene content of at least 70% by weight of the polyol; and C) a glycol other than B having a molecular weight from 60 to 250; wherein A, B, and C are present in the reaction on a percent weight bases of 20 to 60 weight percent A); 15 to 70 weight percent of B); and 10 to 50 weight percent of C).
    Type: Application
    Filed: September 15, 2011
    Publication date: July 18, 2013
    Applicant: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Jorge Jimenez, Woo-Sung Bae, Giuseppe Lista, Mikhail Y. Gelfer, Vanni Parenti, Hans Kramer