Patents by Inventor Stefan Hamel

Stefan Hamel 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: 20080290639
    Abstract: An airbag packet includes an airbag that is vacuum packed in a film. The airbag is folded into a deep drawn lower film that is sealed at sealing points to an upper film. The sealing points are sealed at various strengths so that when the airbag is deployed the upper film remains connected to the lower film at one or more sealing points.
    Type: Application
    Filed: May 20, 2008
    Publication date: November 27, 2008
    Inventors: Silvan Basten, Norbert Sahm, Stefan Hamels
  • Patent number: 7214252
    Abstract: An apparatus for pyrolysis and gasification of organic substances and mixtures thereof is provided with a pyrolysis reactor (1), a fluidized-bed firing (3) for pyrolysis residue, a reaction zone (2) for the pyrolysis gases (13) and circulating fluidized-bed material (35). The pyrolysis reactor (1) has a sluice for introducing application material (10) thereinto. An inlet for the fluidized-bed material (35) is disposed next to the combustion fluidized bed (3). Transport apparatus (14) for mixture of solid pyrolysis residue and circulating fluidized bed material (35) is disposed at or near a bottom of the fluidized bed (3) and lower end of the pyrolysis reactor (1). An overflow is situated at or near the top of the fluidized bed (3) while a heat transfer member is positioned within the reaction zone (2).
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: May 8, 2007
    Assignee: Herhof Umwelttechnik GmbH
    Inventors: Wolfgang Krumm, Günter Funk, Stefan Hamel
  • Publication number: 20030140559
    Abstract: A method serves for the pyrolysis and gasification of substance mixtures containing organic constituents. The organic substances (4) or the substance mixture containing the organic constituents are brought into contact with a heat transfer medium, for preference the ash (5) from a combustion reactor (2) in a pyrolysis reactor (1), for preference a shaft reactor and pyrolysed. The pyrolysis coke (10) derived from the pyrolysis is combusted in a combustion reactor (2), for preference a fluidised bed reactor, under the admission of air (11).
    Type: Application
    Filed: January 10, 2003
    Publication date: July 31, 2003
    Inventors: Wolfgang Krumm, Gunter Funk, Stefan Hamel, Christian Mertens