Patents by Inventor Robert F. Beatty

Robert F. Beatty 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: 10822076
    Abstract: A main rotor blade assembly for a rotary wing aircraft is provided including a main rotor blade root region, a main rotor blade inboard region arranged outboard of said main rotor blade root region, a main rotor blade main region arranged outboard of said main rotor blade inboard region, and a main rotor blade tip region arranged outboard of said main rotor blade main region. At least one of chord, twist, sweep, airfoil shape, and thickness/chord of the main rotor blade assembly has been optimized to achieve balanced high speed forward flight and hover relative to both efficiency and high thrust capability.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: November 3, 2020
    Assignee: Sikorsky Aircraft Corporation
    Inventors: David H. Hunter, Justin Thomas, Robert D. Beatty, Nicholas Charles Tuozzo, Thomas Alan Egolf, Peter F. Lorber, Robert C. Moffitt, Shawn Westfall
  • Patent number: 6685435
    Abstract: A turbine blade assembly for a turbine assembly includes a turbine blade having a turbine blade damper cavity formed therein and stranded wire cable positioned within the turbine blade damper cavity. The stranded wire cable is maintained in the damper cavity during operation of the turbine blade assembly. It reduces vibration of the turbine blade assembly during operation by dissipating energy by friction between the stranded wire cable and the internal surface of the blade that defines the damper cavity. It also dissipates energy by friction between adjacent wires within the stranded wire cable.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: February 3, 2004
    Assignee: The Boeing Company
    Inventors: Gary A. Davis, Gary E. Tuttle, Robert F. Beatty
  • Publication number: 20030202883
    Abstract: A turbine blade assembly for a turbine assembly includes a turbine blade having a turbine blade damper cavity formed therein and stranded wire cable positioned within the turbine blade damper cavity. The stranded wire cable is maintained in the damper cavity during operation of the turbine blade assembly. It reduces vibration of the turbine blade assembly during operation by dissipating energy by friction between the stranded wire cable and the internal surface of the blade that defines the damper cavity. It also dissipates energy by friction between adjacent wires within the stranded wire cable.
    Type: Application
    Filed: April 26, 2002
    Publication date: October 30, 2003
    Inventors: Gary A. Davis, Gary E. Tuttle, Robert F. Beatty
  • Patent number: 5885004
    Abstract: A foil bearing is used wherein the support for the foils are hydrostatically rather than mechanical spring supported. The bearing housing has a plurality of orifices for admitting hydrostatic fluid over the foils. The foils are then supported by the hydrostatic fluid. The hydrostatic foil bearing is stiffer, longer lasting, and easier to assemble than foil bearings with mechanical spring backings. Hydrostatically supported foil bearings also have variable spring rates depending on the pressure of the hydrostatic fluid, thus allowing the hydrostatic foil bearing to have adjustable capacity with speed. In addition the hydrostatic foil bearing damping between the rotor and housing is greater than foil bearings with mechanical spring backing.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: March 23, 1999
    Assignee: Boeing North America, Inc.
    Inventors: Joseph K. Scharrer, Robert F. Beatty
  • Patent number: 5310265
    Abstract: This invention relates to a hydrostatic bearing having a journal 3 annularly circumscribed by a bearing 2 wherein a high pressure fluid is forced between the bearing and the journal axially. The high pressure fluid flowing axially along the journal in the bearing keeps the journal centered. A roughened or diamond knurled 11 inside surface interrupts the circumferential and axial flow of the fluid for improved rotor stability and less leakage. Other features include a tapered inner bore 9 to increase the bearing stiffness and a sharp edged inlet for greater control of the bearing stiffness and damping. The axially fed hydrostatic bearing combines the seal function and the bearing function for annular fluid flows along a journal.
    Type: Grant
    Filed: June 15, 1993
    Date of Patent: May 10, 1994
    Assignee: Rockwell International Corporation
    Inventors: Maynard L. Stangeland, Robert F. Beatty
  • Patent number: 5238308
    Abstract: Adjustable gap hydrostatic bearings and adjustable gap seals wherein the adjustable gaps are useful to compensate for wear, thermal expansion, journal speed, and radial deflection of the journal. A housing 10 is adjacent to a journal 2. The housing contains an annular electrodeformable material 5 which will expand or contract radially with the application of voltage and thus adjust the gap between the liner material 3 and the journal.
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: August 24, 1993
    Assignee: Rockwell International Corporation
    Inventors: Ko-Wei Lang, Joseph K. Scharrer, Robert F. Beatty, Nandor L. Gaspar
  • Patent number: 5073036
    Abstract: A bearing is mounted for rotation on a shaft, the bearing having a projected area in both the axial and radial directions. A fixed bearing support housing is mounted adjacent to and spaced from the bearing and forms an annular space for a fluid flow path extending both radially and axially around the bearing to provide a hydrostatic film barrier which centers the shaft during steady state operation. A plurality of reversing fluid jets in the bearing support housing communicate with such annular space. A pair of non-rotating split rings are located forward and aft of the bearing, the split rings each having a taper angle on its inner circumferential surface. A garter spring is mounted in a recess in the outer circumference of each ring and forces the outer edge of the tapered surface into contact with a hardened surface area on the shaft or on a sleeve mounted on the shaft, to support and center the shaft in the transient state and during start-up and shut-down operations.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: December 17, 1991
    Assignee: Rockwell International Corporation
    Inventors: Robert F. Sutton, Joseph K. Scharrer, Robert F. Beatty
  • Patent number: 5017023
    Abstract: To decrease the wear between the journal 6, and the hydrostatic bearing 1, especially during start up and shut down of the turbomachine, a rub ring 5, is employed intermediate the journal and bearing. The rub ring will come into contact with the journal before the bearing and prevent contact with the bearing bore. The rub ring also serves to block the leakage of the fluid from the bearing. This interrupted flow causes an increase in the stiffness and damping coefficients of the hydrostatic bearing. The use of the rub ring increases the life of the bearing, improves the rotordynamic performance, reduces the leakage flow and improves the hydrodynamic performance of the hydrostatic bearing.
    Type: Grant
    Filed: May 24, 1990
    Date of Patent: May 21, 1991
    Assignee: Rockwell International Corporation
    Inventors: Joseph K. Scharrer, Robert F. Beatty, Arpad Csomor
  • Patent number: 4887607
    Abstract: An apparatus for and method of improving polygraph testing comprises parallel processing of output response signals of a human being by a polygraph machine and a spectral analyzer and then comparing and contrasting the output results for more qualified interpretations.
    Type: Grant
    Filed: March 16, 1988
    Date of Patent: December 19, 1989
    Inventor: Robert F. Beatty
  • Patent number: 4865529
    Abstract: A turbopump assembly 10 including a pump section 12 and a turbine section 14 is provided with forward and aft shaft centerline containment assemblies 20,84 in combination with radial hydrostatic bearings 28,72, and seals 26 to support transient loads and center the shaft 22 within the housing at startup and shutdown.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: September 12, 1989
    Assignee: Rockwell International Corporation
    Inventors: Robert F. Sutton, Robert F. Beatty