Patents by Inventor Vagner Ribeiro

Vagner Ribeiro 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).

  • Saving energy and optimizing yield in metal casting using gravity and speed-controlled centrifugal feed system
    Patent number: 8186417
    Abstract: Molten metal is introduced into the cavity by a combined gravity feed and centrifugal force feed using a rotating turntable under electrical or electronic control. The centrifugal force is controlled to be substantially constant until the metal has solidified. This is accomplished by controlling the ramp-up acceleration of the turntable where rotational velocity is a time-dependent function of rotational radius and molten metal mass and taking into account the flow rate and cooling rate of the liquid metal. The process reduces waste and the attendant energy consumption associated with the quantity of metal required to be melted for the initial pour and associated with reprocessing and reusing the waste component.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: May 29, 2012
    Assignee: Gravcentri, LLC
    Inventor: Vagner Ribeiro
  • SAVING ENERGY AND OPTIMIZING YIELD IN METAL CASTING USING GRAVITY AND SPEED-CONTROLLED CENTRIFUGAL FEED SYSTEM
    Publication number: 20100078144
    Abstract: Molten metal is introduced into the cavity by a combined gravity feed and centrifugal force feed using a rotating turntable under electrical or electronic control. The centrifugal force is controlled to be substantially constant until the metal has solidified. This is accomplished by controlling the ramp-up acceleration of the turntable where rotational velocity is a time-dependent function of rotational radius and molten metal mass and taking into account the flow rate and cooling rate of the liquid metal. The process reduces waste and the attendant energy consumption associated with the quantity of metal required to be melted for the initial pour and associated with reprocessing and reusing the waste component.
    Type: Application
    Filed: July 22, 2009
    Publication date: April 1, 2010
    Applicant: GRAVCENTRI, LLC
    Inventor: Vagner RIBEIRO