Patents by Inventor Thomas Gellweiler

Thomas Gellweiler 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).

  • Non-return valve
    Patent number: 8220483
    Abstract: A device for shutting off the flow in pipelines, hoses or the like, in particular a non-return valve having a housing for installing in a pipeline or the like. The housing has a flow channel, of which the flowed-through cross section can be closed by a valve, the valve having a valve disc for closing the cross section and a valve stem for guiding the valve and the valve being mounted by means of the valve stem in a retaining plate, so as to be displaceable in the direction of flow.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: July 17, 2012
    Assignee: Ritag Ritterhuder Armaturen GmbH & Co. Armaturenwerk KG
    Inventor: Thomas Gellweiler
  • Non-Return Valve
    Publication number: 20090000676
    Abstract: A device for shutting off the flow in pipelines, hoses or the like, in particular a non-return valve having a housing for installing in a pipeline or the like. The housing has a flow channel, of which the flowed-through cross section can be closed by a valve, the valve having a valve disc for closing the cross section and a valve stem for guiding the valve and the valve being mounted by means of the valve stem in a retaining plate, so as to be displaceable in the direction of flow.
    Type: Application
    Filed: December 5, 2006
    Publication date: January 1, 2009
    Inventor: Thomas Gellweiler