Patents by Inventor Amar S. Wanni

Amar S. Wanni 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: 11041681
    Abstract: A clamping system secures to at least one tube in a tube bundle of a heat exchanger in order to reduce vibration damage. The clamping system includes a first clamping component having a J-shape, a second clamping component having an L-shape, a configuration where the first arc around the tube plus the second arc around the tube is equal to at least 100 degrees; and a means for resisting movement of the clamping components. The first clamping component with a J-shape covers a first arc around the tube. The second clamping component with an L-shape covers a second arc opposite the first arc. One of the means for resisting movement includes a stake, a nut, and a bolt.
    Type: Grant
    Filed: October 27, 2019
    Date of Patent: June 22, 2021
    Inventor: Amar S. Wanni
  • Publication number: 20210123694
    Abstract: A clamping system secures to at least one tube in a tube bundle of a heat exchanger in order to reduce vibration damage. The clamping system includes a first clamping component having a J-shape, a second clamping component having an L-shape, a configuration where the first arc around the tube plus the second arc around the tube is equal to at least 100 degrees; and a means for resisting movement of the clamping components. The first clamping component with a J-shape covers a first arc around the tube. The second clamping component with an L-shape covers a second arc opposite the first arc. One of the means for resisting movement includes a stake, a nut, and a bolt.
    Type: Application
    Filed: October 27, 2019
    Publication date: April 29, 2021
    Inventor: Amar S. Wanni
  • Patent number: 10844830
    Abstract: A wave energy converter situated on a seabed includes a pair of pistons, a means for producing energy within a vessel, and a water-conveyance pipe attached to the vessel. The pistons reciprocate using differential pressure to extract energy from a wave transiting on the surface of a body of water. Water receiving ports at high and low pressure points create a differential pressure to act on the pistons and push them in opposite directions. A hydraulic cylinder or a linear alternator is attached between the pair of pistons to extract the energy.
    Type: Grant
    Filed: December 14, 2019
    Date of Patent: November 24, 2020
    Inventor: Amar S. Wanni
  • Patent number: 9498738
    Abstract: Systems and methods are provided for performing field enhanced separations on a feed, such as a petroleum feed, a refinery feed, or another type of hydrocarbonaceous feed. The system can allow for increased throughput of feed per volume of the separation device or system while performing a desired amount of field enhanced separation. The field enhanced separation can include separation by thermal diffusion, optionally enhanced by the presence of an electric field in the channel for performing the separation by thermal diffusion.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: November 22, 2016
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Amar S. Wanni, Lei Zhang, Jason M. McMullan, Gregory J. DeMartin, Michel Daage
  • Patent number: 9458819
    Abstract: A wave energy converter located on the seabed extracts the potential energy in a wave transiting over the wave energy converter. The converter includes a vessel arranged so that its longitudinal axis is located near seabed so that an upstream opening near one end sits below the crest of the wave when and a downstream opening near the other end sits below the trough of the wave. Repetitive waves flowing over the converter cause a cyclic difference in the weight of the water above the openings. This cyclic weight differential in turn creates a horizontal cyclic force acting on the piston, which in turn acts on a hydraulic cylinder to create a high-pressure hydraulic fluid. A vertical embodiment operating on similar principles is also disclosed.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: October 4, 2016
    Inventor: Amar S. Wanni
  • Publication number: 20160252070
    Abstract: A wave energy converter located on the seabed extracts the potential energy in a wave transiting over the wave energy converter. The converter includes a vessel arranged so that its longitudinal axis is located near seabed so that an upstream opening near one end sits below the crest of the wave when and a downstream opening near the other end sits below the trough of the wave. Repetitive waves flowing over the converter cause a cyclic difference in the weight of the water above the openings. This cyclic weight differential in turn creates a horizontal cyclic force acting on the piston, which in turn acts on a hydraulic cylinder to create a high-pressure hydraulic fluid. A vertical embodiment operating on similar principles is also disclosed.
    Type: Application
    Filed: July 27, 2015
    Publication date: September 1, 2016
    Inventor: Amar S. Wanni
  • Publication number: 20160016097
    Abstract: Systems and methods are provided for performing field enhanced separations on a feed, such as a petroleum feed, a refinery feed, or another type of hydrocarbonaceous feed. The system can allow for increased throughput of feed per volume of the separation device or system while performing a desired amount of field enhanced separation. The field enhanced separation can include separation by thermal diffusion, optionally enhanced by the presence of an electric field in the channel for performing the separation by thermal diffusion.
    Type: Application
    Filed: July 18, 2014
    Publication date: January 21, 2016
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Amar S. Wanni, Lei Zhang, Jason M. McMullan, Gregory J. DeMartin, Michel Daage
  • Patent number: 9034078
    Abstract: A method and apparatus are described for swing adsorption processes. The method includes obtaining different plates, wherein the plates have gaseous openings and a utility fluid opening. Then, the gaseous openings are substantially oriented along a common axis for gaseous openings and the plates are diffusion bonded. Once diffusion bonded, the gaseous openings within the module are wash coated with an adsorbent material.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: May 19, 2015
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Amar S. Wanni, Chithranjan Nadarajah, Jeffrey W. Frederick, Narasimhan Sundaram
  • Publication number: 20140060322
    Abstract: A method and apparatus are described for swing adsorption processes. The method includes obtaining different plates, wherein the plates have gaseous openings and a utility fluid opening. Then, the gaseous openings are substantially oriented along a common axis for gaseous openings and the plates are diffusion bonded. Once diffusion bonded, the gaseous openings within the module are wash coated with an adsorbent material.
    Type: Application
    Filed: July 24, 2013
    Publication date: March 6, 2014
    Inventors: Amar S. Wanni, Chithranjan Nadarajah, Jeffrey W. Frederick, Narasimhan Sundaram
  • Patent number: 8349267
    Abstract: Targeted application of anti-fouling mechanisms in a heat exchange system produces higher rates of energy recovery. The anti-fouling mechanisms with high mitigation rates can be deployed at only the hottest portions of a pre-heat train that experience the highest rates of fouling and heat loss. In application, bundles of corrosion resistant smoothed tubes are deployed in the late pre-heat train to significantly reduce the formation of harder deposits. Vibration can be used as an adjunct approach in conjunction with the corrosion resistant, smooth tubes, or deployed alone on existing bundles. The use of high performing, more durable exchangers in select locations justifies the increased cost of these components.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: January 8, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Ian A Cody, Amar S. Wanni, Robert C. Welch, James E. Feather, Mark A. Greaney, Limin Song, Jasmina Poturovic
  • Publication number: 20120273178
    Abstract: An insert is provided in a flow path adjacent to the input and/or output port of a plate heat exchanger to shield heat transfer elements adjacent to the port from high velocity flow. By deflecting and redirecting the high velocity flow from the port, vibration induced stress to the heat transfer elements can be minimized. The insert is provided with a converging nozzle that directs the flow into a narrowed body. The outlet of the insert can be formed as an open end of the body or as a contoured opening in the side wall of the body. Flow can also be more uniformly distributed to the flow channels defined between the heat transfer elements.
    Type: Application
    Filed: July 10, 2012
    Publication date: November 1, 2012
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Amar S WANNI, Thomas M. RUDY, Douglas F. SLINGERLAND, Chih Pong SIN
  • Patent number: 8240367
    Abstract: An insert is provided in a flow path adjacent to the input and/or output port of a plate heat exchanger to shield heat transfer elements adjacent to the port from high velocity flow. By deflecting and redirecting the high velocity flow from the port, vibration induced stress to the heat transfer elements can be minimized. The insert is provided with a converging nozzle that directs the flow into a narrowed body. The outlet of the insert can be formed as an open end of the body or as a contoured opening in the side wall of the body. Flow can also be more uniformly distributed to the flow channels defined between the heat transfer elements.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: August 14, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Amar S. Wanni, Thomas M. Rudy, Douglas F. Slingerland, Chih Pong Sin
  • Publication number: 20120145370
    Abstract: Method of performing a maintenance operation on a process equipment having at least one bundle of elongated members that includes providing an inflatable spreading tool in a deflated condition, inserting the inflatable spreading tool between at least two of the elongated members, inflating the inflatable spreading tool so as to increase the separation between the elongated members. A system for use in facilitating a maintenance operation on a process equipment having at least one bundle of elongated members is also provided.
    Type: Application
    Filed: November 17, 2011
    Publication date: June 14, 2012
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Amar S. WANNI, Alain DeWAGTER, Michael J. REUTHER, Zdenka F. RUZEK
  • Patent number: 8002983
    Abstract: A strainer device for a fluid flow circuit removes debris and solid particles from the fluid flow to prevent plugging and reduce fouling of the system. The assembly includes a chamber that can be hydrocyclonic, a collection area, a screen assembly and a distributor that allows selective connection to a flushing fluid. The fluid flows through the chamber past the strainer device, with large particles collecting in the collection area under the influence of gravity and smaller solid particles being collected in the screen assembly. Particles can be flushed from the system by selectively activating the distributor to back flush the screen assembly and sweep the collection area free of solid particles without disassembling the system.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: August 23, 2011
    Assignee: ExxonMobil Research & Engineering Company
    Inventors: Amar S. Wanni, Thomas M. Rudy, Claude A. Lafleur, Clifford A. Hay, Tomas R. Melli
  • Patent number: 7793708
    Abstract: A tube support device is used with tube bundle devices such as heat exchangers or, condensers with in-line tube arrangements (rectangular tube configuration) to mitigate the possibility of tube damage from flow-induced vibration in the tube bundle. The tube support comprises an elongated member or strip which is intended to be inserted in a tube lane between the tubes of the tube bundle. Raised-tube-engaging zones which include transverse, arcuate tube-receiving saddles are disposed along the length of the strip at successive longitudinal locations corresponding to the tube positions in the bundle. These tube-engaging zones extend laterally out, away from the medial plane of the strip, so that the saddles receive and closely hold the tubes on opposite sides of the tube lane.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: September 14, 2010
    Assignee: ExxonMobil Research & Engineering Company
    Inventors: Amar S. Wanni, Marciano Madrid Calanog, Thomas M. Rudy, Malcolm D. Keen
  • Publication number: 20100116478
    Abstract: A tube bundle device having at least one displaceable baffle which supports the tubes in the bundle device is disclosed in order to reduce tube vibration. The displaceable baffle includes at least two displaceable portions, which can be moved to installed position such that tubes in a tube bundle are deflected.
    Type: Application
    Filed: November 12, 2008
    Publication date: May 13, 2010
    Applicant: ExxonMobil Research and Engineering Company
    Inventor: Amar S. Wanni
  • Patent number: 7699093
    Abstract: A tube support device for a tube bundle having a plurality of elongated tubes with a U-shaped bend portion is disclosed. The tube support device includes an elongated longitudinally extending strip having a pair of opposing faces. A plurality of tube engaging members extend from the pair of opposing faces. The tube support device includes an engagement assembly formed on one end of the tube support device. The engagement assembly is adapted to engage the anchor assembly positioned within the tube bundle, whereby the tube support device can be rotated into the desired orientation between the tubes to prevent vibration damage.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: April 20, 2010
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Amar S. Wanni, Thomas M. Rudy
  • Publication number: 20090242181
    Abstract: A tube bundle for a shell and tube type heat exchanger has a support system that allows simple fabrication and provides a secure support of the tubes to mitigate vibration and problems associated with vibration. The tube bundle is composed of tubes that are supported by spaced cages having support rods sized to allow ample clearance with the adjacent tubes and configured in alternating positions and alternating orientations so that sets of four widely spaced cages form a complete support network. To ensure secure support to avoid vibration, sets of support stakes are inserted adjacent to (or in between) the cages to bias the tubes against the support rods of the cages. By this, fabrication is simplified, but a secure support system is maintained.
    Type: Application
    Filed: March 27, 2008
    Publication date: October 1, 2009
    Applicant: ExxonMobil Research and Engineering Company Law Department
    Inventors: Amar S. Wanni, Thomas M. Rudy, Tomas R. Melli
  • Publication number: 20090090613
    Abstract: Targeted application of anti-fouling mechanisms in a heat exchange system produces higher rates of energy recovery. The anti-fouling mechanisms with high mitigation rates can be deployed at only the hottest portions of a pre-heat train that experience the highest rates of fouling and heat loss. In application, bundles of corrosion resistant smoothed tubes are deployed in the late pre-heat train to significantly reduce the formation of harder deposits. Vibration can be used as an adjunct approach in conjunction with the corrosion resistant, smooth tubes, or deployed alone on existing bundles. The use of high performing, more durable exchangers in select locations justifies the increased cost of these components.
    Type: Application
    Filed: September 26, 2008
    Publication date: April 9, 2009
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Ian A. Cody, Amar S. Wanni, Robert C. Welch, James E. Feather, Mark A. Greaney, Limin Song, Jasmina Poturovic
  • Patent number: 7506684
    Abstract: A support device for a bundle of elongated members and a locking assembly for securing the same within the bundle are disclosed. The support device includes an elongated support adapted to be located between adjacent spaced rows of elongated members, wherein the elongated support having a first side and a second side, wherein the first side being arranged to be positioned adjacent one row of the spaced rows of elongated members and the second side being arranged to be positioned adjacent another row of the spaced rows of elongated members. The support device includes a plurality of support members spaced along the elongated support, wherein each support member have a first supporting assembly located on the first side for supporting one of the elongated members in the one row and a second supporting assembly located on the second side for supporting one of the elongated members in the other row.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: March 24, 2009
    Assignee: ExxonMobil Research & Engineering Company
    Inventors: Amar S. Wanni, Thomas M. Rudy