Patents by Inventor Dirk Stahlberger

Dirk Stahlberger 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: 9844830
    Abstract: A method for manufacturing a pot-shaped pressure vessel, in particular an air spring pot for a vehicle, comprises the following steps: providing a pot, which comprises a bottom, which comprises at least one aperture, providing at least one screw, which comprises a head and a shank, inserting the shank of the at least one screw through the aperture from an inside of the pot, so that the shank of the screw protrudes from an outside of the bottom, and firmly joining the screw to the bottom of the pot. In the transitional area from the head to the shank at least one screw comprises a connecting section tapering from the head to the shank and extending all round the circumference. In inserting the shank through the aperture the connecting section is brought to bear against the edge of the aperture, and the connecting section is joined to the edge of the aperture along its bearing contact with the latter.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: December 19, 2017
    Assignee: PROGRESS-WERK Oberkirch AG
    Inventors: Hubert Leible, Max Dinkelbach, Dirk Stahlberger, Horst Siefermann
  • Publication number: 20150034655
    Abstract: A vehicle pressure vessel and manufacturing method which uses a vessel main part, an arched base, an arched cover, and one or more cross-webs connecting opposite walls of the vessel main part. The vessel main part is open at its top and bottom over which the cover and base respectively fit to close the vessel main part in a pressure-tight manner. A groove is embossed in the cross-webs where they connect to the opposite walls of the vessel main part. The cover and base each have an attachment rim that fits into the grooves when the cover and base are connected to the vessel main part.
    Type: Application
    Filed: July 30, 2013
    Publication date: February 5, 2015
    Inventors: Dirk Stahlberger, Gerhard Mayer, Hubert Leible
  • Patent number: 8939314
    Abstract: A vehicle pressure vessel and manufacturing method which uses a vessel main part, an arched base, an arched cover, and one or more cross-webs connecting opposite walls of the vessel main part. The vessel main part is open at its top and bottom over which the cover and base respectively fit to close the vessel main part in a pressure-tight manner. A groove is embossed in the cross-webs where they connect to the opposite walls of the vessel main part. The cover and base each have an attachment rim that fits into the grooves when the cover and base are connected to the vessel main part.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: January 27, 2015
    Assignee: Progress-Werk-Oberkirch AG
    Inventors: Dirk Stahlberger, Gerhard Mayer, Hubert Leible
  • Publication number: 20100230421
    Abstract: A method for manufacturing a pot-shaped pressure vessel, in particular an air spring pot for a vehicle, comprises the following steps: providing a pot, which comprises a bottom, which comprises at least one aperture, providing at least one screw, which comprises a head and a shank, inserting the shank of the at least one screw through the aperture from an inside of the pot, so that the shank of the screw protrudes from an outside of the bottom, and firmly joining the screw to the bottom of the pot. In the transitional area from the head to the shank at least one screw comprises a connecting section tapering from the head to the shank and extending all round the circumference. In inserting the shank through the aperture the connecting section is brought to bear against the edge of the aperture, and the connecting section is joined to the edge of the aperture along its bearing contact with the latter.
    Type: Application
    Filed: March 11, 2010
    Publication date: September 16, 2010
    Inventors: Hubert Leible, Max Dinkelbach, Dirk Stahlberger, Horst Siefermann