Patents by Inventor Rainer Boehm

Rainer Boehm 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: 20070087201
    Abstract: A self-bonding coating composition for the production of electrical steel sheets cores comprising A) 100 parts per weight of at least one epoxy resin based on bisphenol-A-type and/or bisphenol-F-type, 100% of solids, B) 0.1 to 200 parts per weight of nano particles having an average radius ranging from 2 to 600 nm, C) 0 to 25 parts per weight of at least one curing agent selected from the group consisting of dicyandiamide, blocked isocyanate and Lewis acid or selected from the group consisting of phenolic resin, carboxylic acid, anhydride and Lewis acid, 100% of solids, D) 0.1 to 10 parts per weight of at least one additive, and E) 50 to 200 parts per weight of water or at least one organic solvent, ensuring increased re-softening temperatures as well as excellent bonding strength, corrosion resistance and electrical insulation of the coating.
    Type: Application
    Filed: October 13, 2005
    Publication date: April 19, 2007
    Inventors: Michael Wimmer, Olga Pogodina, Frank-Rainer Boehm
  • Publication number: 20070031672
    Abstract: Wire-coating composition containing resins with nucleophilic groups as well as possibly amide group-containing resins which are capable of crosslinking with one another, comprising (A) 5 to 95% by weight of at least one resin with nucleophilic groups selected from the group consisting of OH, NHR, SH, carboxylate and CH-acidic groups, (B) 0 to 70% by weight of at least one amide group-containing resin and (C) 5 to 95% by weight of at least one organic solvent, wherein the resins of either component (A) or component (B) contain ?-carboxy-?-oxocycloalkyl carboxylic acid amide groups and the percent by weight of (A)-(C) adds up to 100 percent. The wire-coating compositions according to the invention allow a significant increase in the enamelling speed without losing the positive properties of standard wire enamels.
    Type: Application
    Filed: August 4, 2006
    Publication date: February 8, 2007
    Inventors: Frank-Rainer Boehm, Michael Herm
  • Patent number: 7062349
    Abstract: In a control equipment for an industrial sewing machine, it being possible, via switchgears such as switches, probes, sensors or the like, to switch on or off functions and connection states, by a certain voltage level being applied to an input circuit of the control, the input circuit generating an output signal, it is provided that upon the application of varying input voltages Ue, the output voltages Ua generated are the same in each case.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: June 13, 2006
    Assignee: Frankl & Kirchner GmbH & Co. K.G.
    Inventors: Thomas Schmidt, Michael Knop, Wolfgang Sinn, Rainer Böhm, Michael Faulhaber
  • Patent number: 6908692
    Abstract: An electrically conductive wire coated with a curable coating composition that forms a cured coating having a high partial discharge resitance and good mechanical properties. A process for coating an electrically conductive wire with a curable coating composition and curing the coating composition to form a coating having high partial discharge resistance and good mechanical properties.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: June 21, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Frank-Rainer Böhm, Gerhard Kiessling, Manfred Oppermann, Heinz Schindler
  • Patent number: 6849822
    Abstract: A coating composition useful as an electrical insulation layer for metal conductors, particularly wires, that has improved de-coating properties for the partial de-coating of coated conductor by the use of laser irradiation; the coating composition comprises A) 1 wt. % to 90 wt. %, based on the total weight of the binder, of one or more binders, B) 0.3 wt. % to 25 wt. %, based on the total weight of the binder, of one or more reactive particles based on an element-oxygen bound network with elements from the series of aluminum, tin, boron, germanium, gallium, lead, silicon, zinc, the transition metals and the lanthanides and actinides, and C) 0 wt. % to 95 wt.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: February 1, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Gerhard Kiessling, Frank-Rainer Boehm, Hans-Georg Hinderer
  • Publication number: 20040159634
    Abstract: A coating composition useful as an electrical insulation layer for metal conductors, particularly wires, that has improved de-coating properties for the partial de-coating of coated conductor by the use of laser irradiation; the coating composition comprises
    Type: Application
    Filed: February 13, 2004
    Publication date: August 19, 2004
    Applicant: E.I. du Pont de Nemours and Company
    Inventors: Gerhard Kiessling, Frank-Rainer Boehm, Hans-Georg Hinderer
  • Publication number: 20030129396
    Abstract: A coating composition useful as an electrical insulation layer for metal conductors, particularly wires, that has improved de-coating properties for the partial de-coating of coated conductor by the use of laser irradiation; the coating composition comprises
    Type: Application
    Filed: December 27, 2001
    Publication date: July 10, 2003
    Inventors: Gerhard Kiessling, Frank-Rainer Boehm, Hans-Georg Hinderer
  • Patent number: 6558488
    Abstract: The invention relates to a method of making pourable, plastic-bound explosive charges or rocket propellants, to which a metal powder having essentially spherically shaped grains is added. To avoid an increase in the viscosity of the explosive charge or the rocket propellant through polar groups attached to the surface of the metal powder, it is suggested according to the invention that the polar groups of the metal powder be saturated with SiR3 groups (Si=silane; R=organic residue) before the metal powder is added to the explosive mixture. As a result, the polar groups can no longer react with the isocyanates of the explosive charge or the rocket propellant and the specific surface of the respective metal powder, as well as the viscosity of the charges, is reduced.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: May 6, 2003
    Assignee: Rheinmetall W & M GmbH
    Inventors: Paul Wanninger, Rainer Böhm, Horst Pinkernelle
  • Patent number: 6327278
    Abstract: The invention concerns a multimode waveguide laser (1, 2, 3, 5) which is characterized by the fact that the waveguide's cutoff wavelength is smaller than the smallest wavelength of the emission spectrum of the waveguide laser. Advantageously, the waveguide laser and te diode laser (6) in the wavelength range of the waveguide laser emission are optically decoupled, thus making the diode laser pumped waveguide laser specially suitable for intra-cavity spectroscopy.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: December 4, 2001
    Inventors: Peter E. Toscheck, Rainer Boehm, Valerie M. Baev