Patents by Inventor Stefan Leymann

Stefan Leymann 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: 10399138
    Abstract: A pressing tool for joining a pipe and a fitting, including two swivel elements for pressing the pipe and the fitting, a receiving region, formed between the swivel elements, for receiving the pipe and the fitting, at least one swivel axis for rotatably mounting the swivel elements, and a tensioning mechanism for pretensioning the pressing tool. The swivel elements can be swivelled towards one another about the at least one swivel axis to press the pipe and the fitting. In a first, closed position, the receiving region is narrower than in a second, open position, of the swivel elements, wherein the swivel elements are pretensioned towards the closed position by the tensioning mechanism. At least one holding device is provided for holding the swivel elements in the open position against the pretensioning force generated by the tensioning mechanism.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: September 3, 2019
    Assignee: Viega Technology GmbH & Co. KG
    Inventors: Christian Rischen, Frank Hofmann, Stefan Leymann
  • Patent number: 9695577
    Abstract: The invention relates to a method for automatic flushing of fluid lines, in particular potable water lines. The invention further relates to a device for automatic flushing of fluid lines, in particular potable water lines. The invention is based on the technical problem to provide a method and a device for automatic flushing which allows a flushing behaviour that is better-suited to the circumstances and more reliable. The technical problem is solved by a method for automatic flushing of at least one fluid line, in particular a potable water line, in which a temperature profile of the fluid is measured, in which the measured data are evaluated and in which the automatic flushing of the at least one fluid line is influenced by an outcome of the evaluation.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: July 4, 2017
    Assignee: Viega Technology GmbH & Co. KG
    Inventors: Stefan Leymann, Oliver Cyliax, Christian Becker, Stefan Schulte
  • Publication number: 20160067761
    Abstract: A pressing tool for joining a pipe and a fitting, including two swivel elements for pressing the pipe and the fitting, a receiving region, formed between the swivel elements, for receiving the pipe and the fitting, at least one swivel axis for rotatably mounting the swivel elements, and a tensioning mechanism for pretensioning the pressing tool. The swivel elements can be swivelled towards one another about the at least one swivel axis to press the pipe and the fitting. In a first, closed position, the receiving region is narrower than in a second, open position, of the swivel elements, wherein the swivel elements are pretensioned towards the closed position by the tensioning mechanism. At least one holding device is provided for holding the swivel elements in the open position against the pretensioning force generated by the tensioning mechanism.
    Type: Application
    Filed: September 3, 2015
    Publication date: March 10, 2016
    Inventors: Christian Rischen, Frank Hofmann, Stefan Leymann
  • Publication number: 20120234398
    Abstract: The invention relates to a method for automatic flushing of fluid lines, in particular potable water lines. The invention further relates to a device for automatic flushing of fluid lines, in particular potable water lines. The invention is based on the technical problem to provide a method and a device for automatic flushing which allows a flushing behaviour that is better-suited to the circumstances and more reliable. The technical problem is solved by a method for automatic flushing of at least one fluid line, in particular a potable water line, in which a temperature profile of the fluid is measured, in which the measured data are evaluated and in which the automatic flushing of the at least one fluid line is influenced by an outcome of the evaluation.
    Type: Application
    Filed: March 8, 2012
    Publication date: September 20, 2012
    Applicant: VIEGA GMBH & CO. KG
    Inventors: Stefan Leymann, Oliver Cyliax, Christian Becker, Stefan Schulte