Patents by Inventor Fernando Augusto Baptista

Fernando Augusto Baptista 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).

  • Internal combustion engine of circular impulsion
    Patent number: 6688276
    Abstract: The engine includes a cylindrical rotor, set up in the interior of a stator, limited by two flat surfaces forming a first chamber to provided the admission phase and the compression phase and another chamber to provided the expansion phase (D1) and the exhaust phase. The chambers are separated by two section. The peripheral interior surface of the stator is adjusted to the rotor periphery and its extension corresponds to the gap between two pistons.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: February 10, 2004
    Inventors: Fernando Augusto Baptista, João Manuel Pereira Dias Baptista
  • Control devices of a hydrostatic transmission
    Patent number: 6553760
    Abstract: The invention refers to control devices applied in a hydrostatic transmission, which includes a motor pump MP, a hydrostatic circuit HC 1 and HC 2 and an impelling pump IP, which is formed by a rotor 1, a stator 2 and a body 3; the fluid debit is infinitely variable and is obtained by the radial and variable decentralisation of the said stator 2, by means of the impulsion of the rods A and B. The devices are constituted by pistons 4 and 5, which impel the rods A and B, and are inserted in cylinders 6 and 7; by springs systems 9, 10 and 11, which regulate the position of the pistons and of the rods, and by a command formed by a valve 8, inserted in a vacuum circuit with ways V1 and V2, which communicate with the cylinder 7.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: April 29, 2003
    Inventors: Fernando Augusto Baptista, João Manuel Pereira Dias Baptista
  • Control valves of a hydrostatic steering system
    Patent number: 6513548
    Abstract: Valves are associated and integrated inside a body C. A steering valve includes two cylinders A and B, concentric with the steering shaft D. The cylinder A rolls conjointly with the shaft. The valve controls the direction of the fluid circulation in the cylinders which effect the steering. The safety valve includes two pistons P1, P2 and a spring S, and makes the control easier of the steering, in an occasional lack of fluid pressure (pump damage, fluid leak, cut of the shaft strap, engine stop). A progression valve includes a cylinder and the piston PV. It operates by means of the vacuum effect TV, produced in the engine air admission of the vehicle, controlling the return of the piston P1 in a progressive way, from a certain speed of the said vehicle.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: February 4, 2003
    Inventors: Fernando Augusto Baptista, Joao Manuel Pereira Dias Baptista
  • Internal combustion engine of circular impulsion
    Publication number: 20020170530
    Abstract: The engine comprise a cylindrical rotor (B), set up in the interior of a stator (A), limited by two flat surfaces (F1) and (F2), being formed a chamber to provided the admission phase (C!) and the compression phase (C2) and another chamber to provided the expansion phase (D1) and the exhaust phase (D2).
    Type: Application
    Filed: May 24, 2002
    Publication date: November 21, 2002
    Inventors: Fernando Augusto Baptista, Jaoa Manuel Pereira Dias Baptista
  • Control valves of a hydrostatic steering system
    Publication number: 20020144736
    Abstract: The valves are associated and integrated inside a body C comprising:
    Type: Application
    Filed: June 12, 2001
    Publication date: October 10, 2002
    Inventors: Fernando Augusto Baptista, Joao Manuel Pereira Dias Baptista