Patents by Inventor Rahul Dixit

Rahul Dixit 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: 10029213
    Abstract: A system for separating solids from fluid including a solid-laden fluid may include a base fluid, a first separator configured to receive the solid-laden fluid and separate the fluid into a solids portion and an effluent, and a membrane separator configured to receive the effluent and separate the effluent into a permeate and a concentrate. A method for separating solids from fluid may include obtaining a solid-laden fluid, wherein the solid-laden fluid comprises a base fluid, feeding the solid-laden fluid through a centrifuge, removing at least a portion of high gravity solids from the solid-laden fluids, flowing the solid-laden fluid through a membrane separator, removing at least a portion of low gravity solids from the solid-laden fluid, and collecting a permeate from the membrane separator.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: July 24, 2018
    Assignee: M-I L.L.C.
    Inventors: Rahul Dixit, Mukesh Kapila, Yanling Wu
  • Patent number: 8877064
    Abstract: A system for separating solids from fluid including a solid-laden fluid including a base fluid, a first separator configured to receive the solid-laden fluid and separate the fluid into a solids portion and an effluent, and a membrane separator configured to receive the effluent and separate the effluent into a permeate and a concentrate is disclosed. A method for separating solids from fluid including obtaining a solid-laden fluid, wherein the solid-laden fluid comprises a base fluid, feeding the solid-laden fluid through a centrifuge, removing at least a portion of high gravity solids from the solid-laden fluids, flowing the solid-laden fluid through a membrane separator, removing at least a portion of low gravity solids from the solid-laden fluid, and collecting a permeate from the membrane separator is also disclosed.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: November 4, 2014
    Assignee: M-I L.L.C.
    Inventors: Rahul Dixit, Mukesh Kapila
  • Publication number: 20130264284
    Abstract: A system for separating solids from fluid including a solid-laden fluid including a base fluid, a first separator configured to receive the solid-laden fluid and separate the fluid into a solids portion and an effluent, and a membrane separator configured to receive the effluent and separate the effluent into a permeate and a concentrate is disclosed. A method for separating solids from fluid including obtaining a solid-laden fluid, wherein the solid-laden fluid comprises a base fluid, feeding the solid-laden fluid through a centrifuge, removing at least a portion of high gravity solids from the solid-laden fluids, flowing the solid-laden fluid through a membrane separator, removing at least a portion of low gravity solids from the solid-laden fluid, and collecting a permeate from the membrane separator is also disclosed.
    Type: Application
    Filed: March 10, 2011
    Publication date: October 10, 2013
    Applicant: M-I L.L.C.
    Inventors: Rahul Dixit, Mukesh Kapila, Yanling Wu
  • Publication number: 20110220573
    Abstract: A system for separating solids from fluid including a solid-laden fluid including a base fluid, a first separator configured to receive the solid-laden fluid and separate the fluid into a solids portion and an effluent, and a membrane separator configured to receive the effluent and separate the effluent into a permeate and a concentrate is disclosed. A method for separating solids from fluid including obtaining a solid-laden fluid, wherein the solid-laden fluid comprises a base fluid, feeding the solid-laden fluid through a centrifuge, removing at least a portion of high gravity solids from the solid-laden fluids, flowing the solid-laden fluid through a membrane separator, removing at least a portion of low gravity solids from the solid-laden fluid, and collecting a permeate from the membrane separator is also disclosed.
    Type: Application
    Filed: March 10, 2010
    Publication date: September 15, 2011
    Applicant: M-I L.L.C.
    Inventors: Rahul Dixit, Mukesh Kapila
  • Publication number: 20110186525
    Abstract: A process for treating a recovered wellbore fluid, where the process includes contacting an aqueous wellbore fluid with ozone, wherein the aqueous wellbore fluid comprises organic contaminants; and separating the aqueous wellbore fluid into an organic phase and a clarified water phase is disclosed.
    Type: Application
    Filed: October 8, 2009
    Publication date: August 4, 2011
    Applicant: M-I L.L.C.
    Inventor: Rahul Dixit
  • Patent number: 7497954
    Abstract: An apparatus for separating water from oil-based drilling fluid includes an separation tank, a chemical treatment apparatus having one or more de-oiling polymer preparation tanks, and a dissolved air flotation unit. Slop mud is directed into the separation tank where surfactant is added to separate the drilling fluid from oily water. The drilling fluid is drained for further processing. The oily water is removed by an outlet arrangement from the separation tank and directed to an initial treatment line. One or more de-oiling polymers are added to the oily water in the initial treatment line and mixed therewith. The mixture may then be directed to the dissolved air flotation unit where dissolved air is released into the bottom of the mixture. The dissolved air adheres to suspended solids in the mixture and lifts them to the top surface as a froth. The froth is skimmed from the top surface of the mixture and collected.
    Type: Grant
    Filed: February 7, 2006
    Date of Patent: March 3, 2009
    Assignee: M-I L.L.C.
    Inventors: Catalin Ivan, Rahul Dixit
  • Publication number: 20080217261
    Abstract: A system for treating recovered fluids off-line, the system including an ozone assembly and a reactor vessel operatively coupled to the ozone generator and having a reaction compartment and a settling compartment, wherein the reaction compartment is fluidly connected to a recovered hydrocarbons storage vessel and the settling compartment is fluidly connected to a treated oil tank is disclosed. Also disclosed is a method of treating recovered hydrocarbons off-line, the method including flowing recovered hydrocarbons from a storage vessel into a reactor vessel having a reaction compartment and a settling compartment, and injecting ozone from an ozone generator into the recovered hydrocarbons in the reaction compartment.
    Type: Application
    Filed: October 23, 2007
    Publication date: September 11, 2008
    Applicant: M-I LLC
    Inventors: Mukesh Kapila, Paul Newman, Ivan Batinic, Rahul Dixit, Paul Gover, G. A. Addicks, Neale Browne
  • Patent number: 6449472
    Abstract: A remote convenience system (10) and an associated function remotely control convenience functions at a vehicle (16). A receiver/controller (14), located at the vehicle (16), receives vehicle remote convenience function request signals (30) that convey remote function request messages and controls vehicle systems (e.g., 48, 50, 52, and 68) to perform the remotely requested vehicle functions. The receiver/controller (14) includes a messaging processing portion (110) for providing a signal (e.g., 128/130) to activate an at-vehicle alarm component (e.g., 50/52) and for providing a signal (132) to activate a remote assistance-summoning component (68). A portable transmitter outputs the remote convenience function request signals (30) to cause remote control performance. The transmitter (12) includes a manually actuatable emergency pushbutton switch (94). The switch (94) is actuatable in a first operation mode (e.g.
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: September 10, 2002
    Assignee: TRW Inc.
    Inventors: Rahul Dixit, Judy (Jiali) Li, Michael Scott Ogden, James W. Hussey
  • Patent number: 6441728
    Abstract: A tire condition communication system (10) for a vehicle (12) that has a tire (e.g., 14A). A sensor (e.g., 74), associated with the tire (e.g., 14A), senses at least one tire condition. A memory (e.g., 70), associated with the tire (e.g., 14A), holds an identification. Transmitter components (e.g., 80 and 22), associated with the tire (e.g., 14A) and operatively connected to the sensor (74) and the memory (70), transmit a condition signal (e.g., 24A) that indicates the held identification and the sensed tire condition. A vehicle-based unit (28) receives the transmitted condition signal (e.g., 24A) indicative of the held identification and the sensed tire condition. An identification provision unit (e.g., 42A), located on the vehicle (12) adjacent to the tire (e.g., 14A) and having a location identification, transmits the location identification in response to a request. A communication portion (e.g., 48A) of the tire condition sensor unit (e.g.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: August 27, 2002
    Assignee: TRW Inc.
    Inventors: Rahul Dixit, Timothy DeZorzi
  • Publication number: 20020084895
    Abstract: A tire condition communication system (10) and method for a vehicle (12) that has a tire (e.g., 14A). A sensor (70), associated with the tire (e.g., 14A), senses at least one tire condition. A memory (66), associated with the tire (e.g., 14A), holds an identification. A transmitter arrangement (22 and 74), associated with the tire (e.g., 14A), transmits a signal (e.g., 24A) that indicates the held identification and the sensed tire condition. A receiver arrangement (28 and 30), associated with the vehicle (12), receives the transmitted signal (e.g., 24A). An identification update device is associated with the tire and is operatively connected to the memory (66). The update device receives an update identification and provides the received location identification to the memory (66) to be held as the held identification. An input device is manually actuated to provide the update identification.
    Type: Application
    Filed: January 2, 2001
    Publication date: July 4, 2002
    Applicant: TRW Inc.
    Inventors: Rahul Dixit, Timothy DeZorzi
  • Publication number: 20020084896
    Abstract: A tire condition communication system (10) for a vehicle (12) that has a tire (e.g., 14A). A sensor (e.g., 74), associated with the tire (e.g., 14A), senses at least one tire condition. A memory (e.g., 70), associated with the tire (e.g., 14A), holds an identification. Transmitter components (e.g., 80 and 22), associated with the tire (e.g., 14A) and operatively connected to the sensor (74) and the memory (70), transmit a condition signal (e.g., 24A) that indicates the held identification and the sensed tire condition. A vehicle-based unit (28) receives the transmitted condition signal (e.g., 24A) indicative of the held identification and the sensed tire condition. An identification provision unit (e.g., 42A), located on the vehicle (12) adjacent to the tire (e.g., 14A) and having a location identification, transmits the location identification in response to a request. A communication portion (e.g., 48A) of the tire condition sensor unit (e.g.
    Type: Application
    Filed: January 2, 2001
    Publication date: July 4, 2002
    Applicant: TRW Inc.
    Inventors: Rahul Dixit, Timothy DeZorzi
  • Patent number: 6414592
    Abstract: A tire condition communication system (10) and method for a vehicle (12) that has a tire (e.g., 14A). A sensor (70), associated with the tire (e.g., 14A), senses at least one tire condition. A memory (66), associated with the tire (e.g., 14A), holds an identification. A transmitter arrangement (22 and 74), associated with the tire (e.g., 14A), transmits a signal (e.g., 24A) that indicates the held identification and the sensed tire condition. A receiver arrangement (28 and 30), associated with the vehicle (12), receives the transmitted signal (e.g., 24A). An identification update device is associated with the tire and is operatively connected to the memory (66). The update device receives an update identification and provides the received location identification to the memory (66) to be held as the held identification. An input device is manually actuated to provide the update identification.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: July 2, 2002
    Assignee: TRW Inc.
    Inventors: Rahul Dixit, Timothy DeZorzi
  • Patent number: 5361038
    Abstract: An active load applied to the gate transmission line termination of distributed power devices reduces the low frequency noise power appearing at the output of the device. The active load, including at least one active device such as a field effect transistor, operates by transforming the input impedance of a low noise amplifier to the desired load impedance. The active load is connected to one end of an input transmission line having a plurality of impedances connected in electrical series. An input terminal is connected to the opposite end. An output transmission line, also having a plurality of impedances connected in series, has an output terminal at one end and a terminating output impedance at the other. A plurality of active devices are connected to junction points between the series connected impedances of the input and output lines.
    Type: Grant
    Filed: March 11, 1993
    Date of Patent: November 1, 1994
    Assignee: TRW Inc.
    Inventors: Barry R. Allen, Rahul Dixit, Bradford L. Nelson, Juan C. Carillo, William L. Jones