Patents by Inventor Gerhard Piecha

Gerhard Piecha 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: 20170301429
    Abstract: The present disclosure relates to insulation systems. Embodiments thereof may include a formulation for an insulation system used as casting resin and/or pressing resin as conductor and/or wall insulation for current-carrying conductors in generators, motors, and/or rotating machines. Some embodiments may include a material for use in an insulation system including: a base resin having one or more isotropic spherical filler fractions; wherein one of the one or more filler fractions comprises nanofiller particles comprising inorganic-organic particles; wherein both an inorganic fraction and an organic fraction are always simultaneously present; and the nanofiller particles comprise up to 25% by weight in the material.
    Type: Application
    Filed: September 22, 2015
    Publication date: October 19, 2017
    Applicant: Siemens Aktiengesellschaft
    Inventors: Peter Groeppel, Daniel Mach, Michael Nagel, Gerhard Piecha, Christian Triebel, Matthias Uebler
  • Patent number: 8866479
    Abstract: Casting compound suitable for casting an electronic module, in particular a large-volume coil such as a gradient coil, which is composed of a support material forming a matrix, one or more fillers made of inorganic microparticles, and at least one filler made of polymer nanoparticles.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: October 21, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Peter Groeppel, Juergen Huber, Gerhard Piecha, Lothar Schoen, Matthias Uebler
  • Publication number: 20110115488
    Abstract: Casting compound suitable for casting an electronic module, in particular a large-volume coil such as a gradient coil, which is composed of a support material forming a matrix, one or more fillers made of inorganic microparticles, and at least one filler made of polymer nanoparticles.
    Type: Application
    Filed: November 5, 2010
    Publication date: May 19, 2011
    Inventors: Peter Groeppel, Juergen Huber, Gerhard Piecha, Lothar Schoen, Matthias Uebler
  • Publication number: 20110098383
    Abstract: A composite is formed from at least one base material and at least one filler powder mixture dispersed in the base material. The filler powder mixture has a filler powder fraction and at least one further filler powder fraction. The filler powder fraction has an average powder particle diameter (D50) selected from the range from 1 ?m to 100 ?m and the total proportion of the filler powder mixture in the composite (degree of fill) is above 50% by weight. The further filler powder fraction has a further average powder particle diameter selected from the range from 1 nm to 50 nm and the proportion of the further filler powder fraction in the filler powder mixture is selected from the range from 0.1% by weight to 50% by weight. A high degree of fill can be achieved at a low viscosity in the presence of nanosize filler particles. The composite is particularly suitable as embedding composition (pourable resin system).
    Type: Application
    Filed: May 29, 2009
    Publication date: April 28, 2011
    Applicant: SIEMENS AKTIEGESELLSCHAFT
    Inventors: Wilfried Albert, Mario Brockschmidt, Peter Gröppel, Vicky Jablonski, Gerhard Piecha, Uwe Schönamsgruber, Matthias Übler
  • Patent number: 4562227
    Abstract: The invention relates to heat-hardenable reaction resin mixtures which contain polyfunctional epoxides, polyfunctional isocyanates and a reaction accelerator as well as, optionally containing customary additives and/or fillers. The invention has the object of achieving reaction resin mixtures which are stable in storage, consist of individual components that are easy to mix, exhibit a prolonged prehardening period and permit at the same time the manufacture of materials which combine the good mechanical properties and the high temperature-cycle resistance of polyurethane structures with the good thermal properties of oxazolidinone and isocyanurate structures. According to the invention, the reaction resin mixtures contain as polyfunctional isocyanates, isocyanate prepolymerisates in the form of reaction products of diphenyl methanediisocyanate and a diol, or of an isocyanate mixture of diphenyl-methanediisocyanate and a polymethylenepolyphenylisocyanate (with a functionality greater than 2) and a diol.
    Type: Grant
    Filed: June 27, 1984
    Date of Patent: December 31, 1985
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wolfgang Rogler, Helmut Markert, Klaus Kretzschmar, Gerhard Piecha