Patents by Inventor Heinz Portmann

Heinz Portmann 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: 6651307
    Abstract: The invention relates to a process for the manufacture of fiber-reinforced pressure vessels and the product produced therefrom. A ductile metal vessel liner, being formed with at least one nozzle, is wrapped with a first composite layer of resin-impregnated fibers. Pressure is applied to the vessel sufficient to yield the liner but is insufficient to cause deformation of the nozzle. The liner retains a residual compressive stress critical for withstanding cyclical service pressures. A second composite layer is applied over the first layer to increase the strength of the vessel sufficient to maintain the vessel's integrity at very high cyclical service pressures (such as about 0-10,000 psig). The vessel is then pressure tested at 1.5 times the intended service pressure to ensure vessel integrity.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: November 25, 2003
    Assignee: Dynetek Industries Ltd.
    Inventor: Heinz Portmann
  • Patent number: 6382232
    Abstract: A heat-responsive fuse cord is positioned in the proximity of a pressure vessel and is thermally coupled to a thermal-pressure relief device which is in communication with the pressurized contents of the vessel. When ignited the fuse cord burns to a thermal coupler, transferring the heat to the thermal actuator of the TPRD. In a kit form, fuse cord and a thermal coupler provide an economical remote and retrofit triggering system for TPRD's having an otherwise limited environment of influence.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: May 7, 2002
    Assignee: Dynetek Industries Ltd.
    Inventor: Heinz Portmann
  • Publication number: 20020029449
    Abstract: The invention relates to a process for the manufacture of reinforced-reinforced pressure vessels and the product produced therefrom. A ductile metal vessel liner, being formed with at least one nozzle, is wrapped with a first composite layer of resin-impregnated fibers. Pressure is applied to the vessel sufficient to yield the liner but is insufficient to cause deformation of the nozzle. The liner retains a residual compressive stress critical for withstanding cyclical service pressures. A second composite layer is applied over the first layer to increase the strength of the vessel sufficient to maintain the vessel's integrity at very high cyclical service pressures (such as about 0-10,000 psig). The vessel is then pressure tested at 1.5 times the intended service pressure to ensure vessel integrity.
    Type: Application
    Filed: September 10, 2001
    Publication date: March 14, 2002
    Inventor: Heinz Portmann