Patents by Inventor Antônio Carlos Oliveira Bruno

Antônio Carlos Oliveira Bruno 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).

  • Fiber optic position transducer with magnetostrictive material and position calibration process
    Publication number: 20100316328
    Abstract: Fiber optic position transducer that includes a magnetic or electromagnetic element, one or more segments of magnetostrictive material, Fiber Bragg Grating Sensors, a rod of material that is impenetrable to magnetic fields, optical fiber. One or more of the sensors is fixed upon a segment of magnetostrictive material, which is fixed to a rod, and may only be displaced longitudinally. The Fiber Bragg Grating Sensors have different wave lengths and are made of the same optical fiber. The magnetic or electromagnetic element included may be made of NdFeB (Neodymium Iron Boron) or metal alloys of TbDyFe (Terbium, Dysprosium and Iron), such as TX, Terphenol-D and others. It is applied to a control flow valve in an oil well, and it also refers to the calibration process of the position of the transducer.
    Type: Application
    Filed: December 28, 2009
    Publication date: December 16, 2010
    Applicants: PETROLEO BRASILEIRO S.A. - PETROBRAS, PONTIFICIA UNIVERSIDADE CATOLICA DO RIO DE JANEIRO
    Inventors: José Luiz Arias Vidal, Ricardo Munoz Freitas, Arthur Martins Barbosa Braga, Luiz Carlos Guedes Valente, Antônio Carlos Oliveira Bruno, Hélio Ricardo Carvalho
  • Fiber optic position transducer with magnetostrictive material and position calibration process
    Publication number: 20090052831
    Abstract: Fiber optic position transducer that includes a magnetic or electromagnetic element, one or more segments of magnetostrictive material, Fiber Bragg Grating Sensors, a rod of material that is impenetrable to magnetic fields, optical fiber. One or more of the sensors is fixed upon a segment of magnetostrictive material, which is fixed to a rod, and may only be displaced longitudinally. The Fiber Bragg Grating Sensors have different wave lengths and are made of the same optical fiber. The magnetic or electromagnetic element included may be made of NdFeB (Neodymium Iron Boron) or metal alloys of TbDyFe (Terbium, Dysprosium and Iron), such as TX, Terphenol-D and others. It is applied to a control flow valve in an oil well, and it also refers to the calibration process of the position of the transducer.
    Type: Application
    Filed: June 30, 2008
    Publication date: February 26, 2009
    Applicants: PETROLEO BRASILEIRO S.A. - PETROBRAS, PONTIFICIA UNIVERSIDADE CATOLICA DO RIO DE JANEIRO
    Inventors: Jose Luiz Arias Vidal, Ricardo Munoz Freitas, Arthur Martins Barbosa Braga, Luis Carlos Guedes Valente, Antonio Carlos Oliveira Bruno, Helio Ricardo Carvalho