Patents by Inventor Beate Langenhan

Beate Langenhan 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).

  • Method for producing a shaft for compressors
    Patent number: 8066830
    Abstract: A method for the production of steels is provided. A heat treatment is carried out, in which the steel is hardened in water twice at different high temperatures, and subsequently subjected to an annealing treatment. It has been shown that the steel 26NiCrMoV14-5 has a high subzero toughness. In one aspect, the steel is usable down to a temperature of at least minus 170° C.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: November 29, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventors: Ralf Bode, Beate Langenhan
  • Method for Producing a Shaft for Compressors
    Publication number: 20090242084
    Abstract: A method for the production of steels is provided. A heat treatment is carried out, in which the steel is hardened in water twice at different high temperatures, and subsequently subjected to an annealing treatment. It has been shown that the steel 26NiCrMoV14-5 has a high subzero toughness. In one aspect, the steel is usable down to a temperature of at least minus 170° C.
    Type: Application
    Filed: September 13, 2006
    Publication date: October 1, 2009
    Inventors: Ralf Bode, Beate Langenhan
  • Compressor Housing for Use at Low Temperatures
    Publication number: 20080317589
    Abstract: The invention relates to a turbo machine comprising a housing. Said turbo machine is designed especially as a turbo compressor for use at low temperatures, the housing preferably being made of a cold-resistant material that has a martensitic structure.
    Type: Application
    Filed: December 15, 2006
    Publication date: December 25, 2008
    Inventors: Ralf Bode, Beate Langenhan