Patents by Inventor DARYUSH FARHANGI

DARYUSH FARHANGI 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: 20090158798
    Abstract: Rolling the linear strip of single and laminated (multilayer) plates to produce a spiral shell, constituting part or whole wall of a cylinder and tubular element, is a procedure performed by using the forms and moulds. The stringers (beams) of round or curved stairs and their handrails are examples of spiral shells and elements constituting part of cylinder wall. Pipes with spiral joints are the example of spiral shell constituting whole wall of a cylinder and tubular element. This patent provides the design of a spiral roller machine and its relevant calculations to adjust the machine, and the procedure to roll spiral shells and elements according to the required shape.
    Type: Application
    Filed: August 6, 2008
    Publication date: June 25, 2009
    Inventor: DARYUSH FARHANGI