Patents by Inventor Kenneth O. Johnson

Kenneth O. Johnson 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: 9811924
    Abstract: A method and system for providing a fast image reconstruction of magnetic resonance spectroscopic imaging (MRSI) data based on applying, at least in part, interferometric techniques using a single receiver element. The images are reconstructed through temporally cross-correlating spacially incoherent k-space locations.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: November 7, 2017
    Assignee: University of Virginia Patent Foundation
    Inventors: Kenneth O. Johnson, Craig H. Meyer
  • Publication number: 20140044335
    Abstract: A method and system for providing a fast image reconstruction of magnetic resonance spectroscopic imaging (MRSI) data based on applying, at least in part, interferometric techniques using a single receiver element. The images are reconstructed through temporally cross-correlating spacially incoherent k-space locations.
    Type: Application
    Filed: April 19, 2012
    Publication date: February 13, 2014
    Applicant: UNIVERSITY OF VIRGINIA PATENT FOUNDATION
    Inventors: Kenneth O. Johnson, Craig H. Meyer
  • Patent number: 6877593
    Abstract: A transmission apparatus (416) is provided that is configured to transmit energy from a power source to a work device. Transmission apparatus (416) includes an input shaft (426) adapted to receive energy from the power source and an output shaft (434) adapted to transfer energy to the work device. Preferably, transmission apparatus (416) further includes a fluid coupling (25) configured to transfer energy from input shaft (426) to output shaft (434) and a mechanical coupling (24) configured to transfer energy from input shaft (426) to the output shaft (434).
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: April 12, 2005
    Inventor: Kenneth O. Johnson
  • Publication number: 20040182073
    Abstract: A non-grounded hydraulic transmission apparatus (16) is provided for transferring power from a power source to a work unit. Transmission apparatus (16) includes an input device (20) having an input shaft (26) coupled to the power source and a plurality of pumps (30) configured to rotate with input shaft (26). Pumps (30) are configured to transfer energy received from the power source into a fluid (22). Transmission apparatus (16) further includes an output device (24) having an output shaft (38) coupled to the work unit and a plurality of turbines (34) configured to rotate output shaft (38). Turbines (34) are configured to remove energy from fluid (22) and transfer said energy to the work unit through output shaft (38).
    Type: Application
    Filed: January 30, 2004
    Publication date: September 23, 2004
    Inventor: Kenneth O. Johnson
  • Patent number: 6711896
    Abstract: A non-grounded hydraulic transmission apparatus (16) is provided for transferring power from a power source to a work unit, Transmission apparatus (16) includes an input device (20) having an input shaft (26) coupled to the power source and a plurality of pumps (30) configured to rotate with input shaft (26). Pumps (30) are configured to transfer energy received from the power source into a fluid (22). Transmission apparatus (16) further includes an output device (24) having an output shaft (38) coupled to the work unit and a plurality of turbines (34) configured to rotate output shaft (38). Turbines (34) are configured to remove energy from fluid (22) and transfer said energy to the work unit through output shaft (38).
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: March 30, 2004
    Inventor: Kenneth O. Johnson
  • Publication number: 20030183470
    Abstract: A transmission apparatus (416) is provided that is configured to transmit energy from a power source to a work device. Transmission apparatus (416) includes an input shaft (426) adapted to receive energy from the power source and an output shaft (434) adapted to transfer energy to the work device. Preferably, transmission apparatus (416) further includes a fluid coupling (25) configured to transfer energy from input shaft (426) to output shaft (434) and a mechanical coupling (24) configured to transfer energy from input shaft (426) to the output shaft (434).
    Type: Application
    Filed: March 24, 2003
    Publication date: October 2, 2003
    Inventor: Kenneth O. Johnson
  • Patent number: 5396791
    Abstract: A flexible adaptor mounts an aircraft gas turbine engine to a test stand. The adaptor includes an upper frame configured for mounting on the test stand, and a lower frame spaced from the upper frame and configured for supporting the engine. A spring flexibly joins the lower frame to the upper frame to simulate the flexibility of an aircraft wing which supports the engine during operation.
    Type: Grant
    Filed: August 13, 1993
    Date of Patent: March 14, 1995
    Assignee: General Electric Company
    Inventors: Daniel E. Mollmann, Pamela M. Boehm, Eugene F. Gaffney, Michael P. Swift, Mark E. Stegemiller, Kenneth O. Johnson, Stephen L. Carmichael
  • Patent number: 5129757
    Abstract: The invention is a water remover-soil stabilizer, comprised of PVC pipes assembled in a polygonal shape with a discharge pipe at an upper end and connected to a water withdrawal pump. Water is admitted to the lower, horizontal pipe, through a plurality of extremely narrow slits, longitudinally spaced, and laterally extending circumferentially therein which render the section water pervious. After the pit is dug, the invention is inserted into the pit and the pumping is started. The invention withdraws only the water since the width of the slits is less than the diameter of the average sized sugar-sand grain.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: July 14, 1992
    Inventor: Kenneth O. Johnson
  • Patent number: 5079916
    Abstract: A new and improved gas turbine engine including a gas generator and a power turbine is disclosed. The power turbine includes a first rotor having a plurality of first turbine blade rows extending radially outwardly therefrom, and a second rotor having a plurality of second turbine blade rows extending radially inwardly therefrom. The power turbine is supported aft of the gas generator and is effective for receiving combustion gases therefrom and expanding the gases through the first and second turbine blade rows for extracting substantially all output power therefrom for driving the first and second rotors in counterrotating directions.
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: January 14, 1992
    Assignee: General Electric Company
    Inventor: Kenneth O. Johnson
  • Patent number: 4842484
    Abstract: A lightweight counterrotatable propeller system driven by a rotatable shaft is disclosed. The system includes first and second counterrotatable propellers, each propeller including a plurality of blades mounted on first and second hubs, respectively. Each blade is attached to the hub by means of a ball screw which converts centrifugal force on each of the rotating propeller blades into a pitch changing force. Gearing means for operatively connecting the shaft with each propeller are located between the propellers with a carrying member for one of the propellers forming an outer wall which radially bounds the gearing means. Additionally, non-rotating actuating means for changing propeller pitch are operatively connected to the blades of each of said first and second propellers through first and second thrust bearings, respectively.
    Type: Grant
    Filed: August 28, 1985
    Date of Patent: June 27, 1989
    Assignee: General Electric Company
    Inventor: Kenneth O. Johnson
  • Patent number: 4660376
    Abstract: A gas turbine including at least a compressor, a combustor, and a turbine is constructed to operate at a preferred thermal efficiency in predetermined compressor and turbine flow pressure ratios. A fluid, such as steam, for example produced by waste heat and pressurized as water, and characterized as having a higher specific heat at constant pressure than effluent from the combustor is introduced into such effluent to provide a turbine operating medium of improved potential to transfer energy downstream of the combustor. Such injection provides effective variable geometry to the system. This injection system maintains such pressure flow ratios substantially independent of engine power output.
    Type: Grant
    Filed: October 21, 1985
    Date of Patent: April 28, 1987
    Assignee: General Electric Company
    Inventor: Kenneth O. Johnson
  • Patent number: 4569195
    Abstract: A gas turbine including at least a compressor, a combustor, and a turbine is constructed to operate at a preferred thermal efficiency in predetermined compressor and turbine flow pressure ratios. A fluid, such as steam, for example produced by waste heat and pressurized as water, and characterized as having a higher specific heat at constant pressure than effluent from the combustor is introduced into such effluent to provide a turbine operating medium of improved potential to transfer energy downstream of the combustor. Such injection provides effective variable geometry to the system. This injection system maintains such pressure flow ratios substantially independent of engine power output.
    Type: Grant
    Filed: April 27, 1984
    Date of Patent: February 11, 1986
    Assignee: General Electric Company
    Inventor: Kenneth O. Johnson
  • Patent number: 4529887
    Abstract: In one form of the invention, means are provided for sensing changes in electrical power demanded from an electrical generator driven by a gas turbine engine. In response, other means change the rate of fuel and air delivery to the engine in proportion to the demand changes and keep the combustor fuel-air ratio substantially constant.
    Type: Grant
    Filed: June 20, 1983
    Date of Patent: July 16, 1985
    Assignee: General Electric Company
    Inventor: Kenneth O. Johnson
  • Patent number: 4265099
    Abstract: An improved flexible coupling for use in conjunction with a flexible high speed coupling shaft includes means for increasing the coupling axial stiffness while maintaining a high degree of alignment offset capability and the same overall shaft axial stiffness.
    Type: Grant
    Filed: March 2, 1979
    Date of Patent: May 5, 1981
    Assignee: General Electric Company
    Inventors: Kenneth O. Johnson, Harold E. Fogg, Ned A. Hope
  • Patent number: 4252547
    Abstract: A portable gas cleaning unit having a box-shaped housing supporting filters operable to remove particulates, pollens, odors, and smoke from a gas, as air. A motor driven fan located within the housing moves gas through the filters and discharges cleaned gas to the environment outside of the housing. In one form of the invention, the motor is a D. C. motor powered by a 12-volt battery. The filters are mounted in a recess in the top wall of the housing and include a coarse fiber filter and a particulate charcoal filter. A protective open rectangular grid is located over the fiber filter and is mounted with a tight fit on the top wall to hold the filters in the recess. An open top tank is located within the housing for carrying a liquid, as water. Vapor plates mounted on the tank are used to facilitate the evaporation of liquid into the gas flowing through the housing.
    Type: Grant
    Filed: February 15, 1979
    Date of Patent: February 24, 1981
    Inventor: Kenneth O. Johnson
  • Patent number: D258686
    Type: Grant
    Filed: January 15, 1979
    Date of Patent: March 24, 1981
    Inventor: Kenneth O. Johnson
  • Patent number: D258758
    Type: Grant
    Filed: January 15, 1979
    Date of Patent: March 31, 1981
    Inventor: Kenneth O. Johnson
  • Patent number: D258759
    Type: Grant
    Filed: January 15, 1979
    Date of Patent: March 31, 1981
    Inventor: Kenneth O. Johnson