Patents by Inventor Richard T. Brown

Richard T. Brown 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).

  • Publication number: 20190274537
    Abstract: Methods and systems for determining a physiological parameter of a subject through interrogation of an eye of the subject with an optical signal are described. Interrogation is performed unobtrusively. The physiological parameter is determined from a signal sensed from the eye of a subject according to a schedule, under the control of a scheduling controller.
    Type: Application
    Filed: March 15, 2019
    Publication date: September 12, 2019
    Inventors: Allen L. Brown, JR., Douglas C. Burger, Eric Horvitz, Roderick A. Hyde, Edward K.Y. Jung, Jordin T. Kare, Chris Demetrios Karkanias, Eric C. Leuthardt, John L. Manferdelli, Craig J. Mundie, Nathan P. Myhrvold, Barney Pell, Clarence T. Tegreene, Willard H. Wattenburg, Charles Whitmer, Lowell L. Wood, JR., Richard N. Zare
  • Patent number: 10331087
    Abstract: Methods and apparatus that provide for inertial sensing. In one example, a method for inertial sensing includes trapping and cooling a cloud of atoms, applying a first beam splitter pulse sequence to the cloud of atoms, applying one or more augmentation pulses to the cloud of atoms subsequent to applying the first beam splitter pulse sequence, applying a mirror sequence to the cloud of atoms, applying a one or more augmentation pulses to the cloud of atoms subsequent to applying the mirror sequence, applying a second beam splitter pulse sequence to the cloud of atoms subsequent to applying the second augmentation pulse, modulating at least one of a phase and an intensity of at least one of the first and the second beam splitter pulse sequences, performing at least one measurement on the cloud of atoms, and generating a control signal based on the at least one measurement.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: June 25, 2019
    Assignee: THE CHARLES STARK DRAPER LABORATORY, INC.
    Inventors: Krish Kotru, Justin M. Brown, David L. Butts, Richard E. Stoner, Jennifer T. Choy, David M. S. Johnson, Nicole Pomeroy, Stephen P. Smith, Nancy Wu
  • Patent number: 8291691
    Abstract: A multi-pulse rocket is equipped with a thermally insulating barrier that serves as a rupture disk or a movable plug or plate separating staged propellant grains. When a rupture disk it used, the disk can be equipped with a pyrotechnic actuator to weaken the disk upon command, enabling the propellant grain on the fore side of the disk to burst the disk at a relatively low pressure when ignition of the propellant grain is needed for additional thrust. Rupturing of the disk can also be controlled by attitude maneuvering ports on the fore side of the barrier whose open or closed conditions are controlled by independently operable closures. When a movable plug is used, the plug is movable between a closed position separating rocket chamber into subchambers isolating the propellant grains from each other and an open position allowing the flow of combustion gas between the two subchambers to achieve additional axial thrust.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: October 23, 2012
    Assignee: Aerojet-General Corporation
    Inventors: Guy B. Spear, Katherine L. Clopeck, Richard T. Brown, Michael Digiacomo, William M. Wallace
  • Publication number: 20110167794
    Abstract: A multi-pulse rocket is equipped with a thermally insulating barrier that serves as a rupture disk or a movable plug or plate separating staged propellant grains. When a rupture disk it used, the disk can be equipped with a pyrotechnic actuator to weaken the disk upon command, enabling the propellant grain on the fore side of the disk to burst the disk at a relatively low pressure when ignition of the propellant grain is needed for additional thrust. Rupturing of the disk can also be controlled by attitude maneuvering ports on the fore side of the barrier whose open or closed conditions are controlled by independently operable closures. When a movable plug is used, the plug is movable between a closed position separating rocket chamber into subchambers isolating the propellant grains from each other and an open position allowing the flow of combustion gas between the two subchambers to achieve additional axial thrust.
    Type: Application
    Filed: March 4, 2008
    Publication date: July 14, 2011
    Applicant: Aerojet-General Corporation
    Inventors: Guy B. Spear, Katherine L. Clopeck, Richard T. Brown, Michael Digiacomo, William M. Wallace
  • Patent number: 7481056
    Abstract: An exhaust gas turbocharger for an internal combustion engine has a flow control gate that is timely pivotal and located within the exhaust gas inlet downstream of the flow splitter. Control is provided to timely pivot the flow control gate toward the turbine rotor and thus provides an initial high velocity spin to the rotor when turbo charged boost pressure is demanded from an adjustable direction flow control valve. The control valve uses boost pressure from the compressor to timely actuate a piston and lever connected to the pivotal flow control gate, or a signal from an engine control module (ECM) can be directed to a hydraulic, pneumatic or electrical actuator having a reciprocal control rod connected to the flow control gate.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: January 27, 2009
    Inventors: Jimmy L. Blaylock, Richard T. Brown
  • Publication number: 20070227142
    Abstract: An exhaust gas turbocharger for an internal combustion engine has a volute or spiral turbine housing and a compressor housing where a turbine rotor and a compressor impeller are connected with one another by a common shaft. The exhaust gas inlet to the turbine housing has a fixed flow splitter. A pivotal flow control gate is attached to the downstream end of the fixed flow splitter. Control means is provided to timely pivot the pivotal flow control gate toward the turbine rotor and thus provide an initial high velocity spin to the rotor when turbo charged boost pressure is demanded. An adjustable directional flow control valve uses boost pressure from the compressor to timely actuate a piston and lever connected to the pivotal flow control gate or a signal from an engine control module (ECM) can be directed to an hydraulic, pneumatic or electrical actuator having a reciprocatable control rod connected to the flow control gate.
    Type: Application
    Filed: March 8, 2007
    Publication date: October 4, 2007
    Inventors: Jimmy L. Blaylock, Richard T. Brown
  • Patent number: 6595324
    Abstract: A safety enclosure for a human worker positioned on a ladder, comprising a bracket connectable to first and second preselected rungs of a ladder, having a longitudinally extending central portion preselected in length to span at least two adjacent rungs of the ladder. A continuous open hoop-like member having a preselected opening sized so as to freely encompass the midsection of a human worker is connected to the bracket means adjacent the first preselected rung. The hoop-like member has a pair of side portions extending normal to the bracket, and a back portion connecting the two side portions. Auxiliary hoop means connects the outboard ends of the side portions to the bracket and adjacent to the second preselected ladder rung. The bracket includes a first U-shaped hook-like portion sized to hook over and longitudinally engage the first rung. The bracket also includes, at the other end thereof, a U-shaped portion sized to snugly and normally encompass said second preselected rung.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: July 22, 2003
    Assignee: Safety Brace, Inc.
    Inventor: Richard T. Brown
  • Publication number: 20020125070
    Abstract: A safety enclosure for a human worker positioned on a ladder, comprising a bracket connectable to first and second preselected rungs of a ladder, having a longitudinally extending central portion preselected in length to span at least two adjacent rungs of the ladder. A continuous open hoop-like member having a preselected opening sized so as to freely encompass the midsection of a human worker is connected to the bracket means adjacent the first preselected rung. The hoop-like member has a pair of side portions extending normal to the bracket, and a back portion connecting the two side portions. Auxiliary hoop means connects the outboard ends of the side portions to the bracket and adjacent to the second preselected ladder rung. The bracket includes a first U-shaped hook-like portion sized to hook over and longitudinally engage the first rung. The bracket also includes, at the other end thereof, a U-shaped portion sized to snugly and normally encompass said second preselected rung.
    Type: Application
    Filed: January 31, 2001
    Publication date: September 12, 2002
    Inventor: Richard T. Brown
  • Patent number: 6065566
    Abstract: Apparatus for stabilizing a two-legged ladder against lateral and rearward movement. Telescoped tubular pole assemblies are attached at one end to opposite side rails of the ladder with a quick disconnect universal pivot. Special support and retainer blocks are provided for facilitating the transport of the assembled ladder and telescoped assemblies on the top of a vehicle.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: May 23, 2000
    Inventors: Michael J. Brown, Richard T. Brown
  • Patent number: 6021031
    Abstract: A data-storage cartridge has a rotary inner shell, or shutter, to selectively permit access to a data-storage disk disposed within the shell. The shutter is equipped with a wedge-shaped opening through which access to the data-storage disk is attained. A fabric liner is affixed to the inner surface of the shutter to isolate the disk from direct contact with the shutter. The ends of the liner extend beyond, i.e., overhang, the edges of the shutter which form the disk-access opening, thereby preventing direct contact between the data-storage disk and the edges.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: February 1, 2000
    Assignee: Iomega Corporation
    Inventors: Ronald F. Hales, Richard T. Brown, Brian Schick, Robert H. Lundgreen
  • Patent number: 5621087
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: April 15, 1997
    Assignee: Salford Ultrafine Chemicals and Research Limited
    Inventors: Feodor Scheinmann, Keith W. Lumbard, Richard T. Brown, Stephen P. Mayalarp, Neil E. Carter
  • Patent number: 5274136
    Abstract: An improved method for the decarbalkoxylation of alkylated .beta.-keto esters to obtain high yields of ketones. In accordance with the method, decarbalkoxylation of alkylated .beta.-keto esters is accomplished by heating the esters in the presence of dilute aqueous alkali and an effective amount of a phase-transfer agent. The method produces commercially practical yields of ketone in a manner which is facile, economical and environmentally safe. Novel methylene-linked pyrethroid ketones produced from the improved method exhibit insecticidal activity against various agricultural pests.
    Type: Grant
    Filed: July 1, 1992
    Date of Patent: December 28, 1993
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Frank D. Mills, Richard T. Brown, Giles D. Mills, Jr.
  • Patent number: 5157048
    Abstract: An improved method for the decarbalkoxyation of alkylated .beta.-keto esters to obtain high yields of ketones. In accordance with the method, decarbalkoxylation of alkylated .beta.-keto esters is accomplished by heating the esters in the presence of dilute aqueous alkali and an effective amount of a phase-transfer agent. The method produces commercially practical yields of ketone in a manner which is facile, economical and environmentally safe. Novel methylene-linked pyrethroid ketones produced from the improved method exhibit insecticidal activity against various agricultural pests.
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: October 20, 1992
    Assignee: The United States of America, as represented by the Secretary of Agriculture
    Inventors: Frank D. Mills, Richard T. Brown, Giles D. Mills, Jr.
  • Patent number: 4934240
    Abstract: Apparatus for braiding an article from a plurality of fibers, comprising a plurality of flexible annular members of substantially the same size which are disposed side-by-side in axially aligned relation and have means for supporting fiber carriers for axial movement relative thereto. The annular members are mounted for circumferential movement about a common central axis relative to each other. A plurality of rows of fiber carriers are mounted on the annular members for axial movement relative to the annular members. Actuating means are provided to move the annular members and to move the rows of fiber carriers axially in a predetermined manner to intertwine the fibers.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: June 19, 1990
    Assignee: Atlantic Research Corporation
    Inventors: Carl H. Culp, Sr., Steven M. Hastings, Richard T. Brown
  • Patent number: 4903574
    Abstract: A fiber spool apparatus for a braiding machine or the like, comprising a support, a fiber supply spool rotatably mounted on the support, a housing fixedly mounted on the support and having a plurality of recessed portions on the inner surface thereof, and a coil spring mounted within the housing. The coil spring has an inner end operatively associated with the spool and an outer end in engagement with the inner surface of the housing. When fiber is fed from the spool to the braiding machine, the spool is rotated in a first direction to wind and tension the spring by engagement of the outer end thereof in one of the recessed portions in the housing rotation of the spool in the first direction until the spring reaches a predetermined tension. Continued rotation of the spool in the first direction causes the outer spring end to slip from one recessed portion to another after the spring has reached the predetermined tension.
    Type: Grant
    Filed: June 13, 1989
    Date of Patent: February 27, 1990
    Assignee: Atlantic Research Corporation
    Inventors: Richard T. Brown, Clint H. Ashton
  • Patent number: 4829091
    Abstract: An improved method for the decarbalkoxylation of alkylated .beta.-keto esters to obtain high yields of ketones. In accordane with the method, decarbalkoxylation of alkylated .beta.-keto esters is accomplished by heating the esters in the presence of dilute aqueous alkali and an effective amount of a phase-transfer agent. The method produces commercially practical yields of ketone in a manner which is facile, economical and environmentally safe. Novel methylene-linked pyrethroid ketones produced from the improved method exhibit insecticidal activity against various agricultural pests.
    Type: Grant
    Filed: May 27, 1987
    Date of Patent: May 9, 1989
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Frank D. Mills, Richard T. Brown, Giles D. Mills, Jr
  • Patent number: 4753150
    Abstract: Apparatus for braiding an article from a plurality of fibers, comprising a plurality of ring members of substantially the same size which are disposed side-by-side in axially aligned relation and have means for supporting fiber carriers for axial movement relative thereto. The ring members are mounted for rotation about a common central axis relative to each other. A plurality of rows of fiber carriers are mounted on the ring members for axial movement relative to the ring members. Actuating means are provided to rotate the ring members and to move the rows of fiber carriers axially in a predetermined manner to intertwine the fibers.
    Type: Grant
    Filed: June 12, 1987
    Date of Patent: June 28, 1988
    Assignee: Atlantic Research Corporation
    Inventor: Richard T. Brown
  • Patent number: 4621560
    Abstract: A braiding method wherein fiber carriers are arranged in rows and columns which are moved in a predetermined alternating sequence to intertwine the fibers and form a braided article. A selected intermediate row is moved a distance sufficient to block movement of a column on one side thereof. While the column is blocked, a tamping force is applied thereto to move it against the one side of the selected row to facilitate proper alignment of the fiber carriers in the column.
    Type: Grant
    Filed: April 11, 1985
    Date of Patent: November 11, 1986
    Assignee: Atlantic Research Corporation
    Inventors: Richard T. Brown, Eric D. Ratliff
  • Patent number: D456526
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: April 30, 2002
    Assignee: Safety Brace, Inc
    Inventor: Richard T. Brown
  • Patent number: D457651
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: May 21, 2002
    Assignee: Safety Brace, Inc.
    Inventor: Richard T. Brown