Patents by Inventor Robert A. Larson
Robert A. Larson 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).
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Patent number: 9079222Abstract: A shale shaker for separating solids from solids laden drilling fluid is disclosed as having a basket with a scalping screen deck, at least one first screen deck and at least one second screen deck. The basket further may have a flow tray arranged between said scalping screen deck and at least one first screen deck, and a plurality of first ducts and a plurality of second ducts, the plurality of first ducts for directing solids laden drilling fluid to the at least one first screen deck. The second plurality of second ducts are for directing solids laden drilling fluid to said second screen deck.Type: GrantFiled: April 30, 2010Date of Patent: July 14, 2015Assignee: National Oilwell Varco, L.P.Inventors: George Alexander Burnett, Thomas Robert Larson
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Publication number: 20150174421Abstract: There is provided an energy delivery device comprising a storage device, a discharge circuit and a disarm circuit. The discharge circuit comprises a switch electrically connected to the storage device, and is selectively operable to deliver energy from the storage device to a load, e.g., a patient needing defibrillation, preferably in a multiphasic waveform. The disarm circuit comprises the switch. Preferably, the discharge circuit comprises an H-bridge circuit. There are also provided delivery devices: which comprise a shoot-through elimination circuit; which include housing elements which, when assembled, cause electrical connection between respective components; which include a housing having a small volume and an energy storage device having a large capacitance; which comprise a shunt circuit which, when activated, prevents switching of a switch. There are also provided methods of assembly and disassembly of an energy delivery unit and methods of delivering energy to a load.Type: ApplicationFiled: March 6, 2015Publication date: June 25, 2015Inventors: Michael C. Garrett, Robert Larson, Jerry Bazata, Dean L. Milani, William J. Smirles
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Patent number: 9004294Abstract: A feedwell for a gravity separation vessel for introducing a feed stream such as oil sand slurry to the gravity separation vessel is provided comprising a walled member having an upper perimeter edge, a lower perimeter edge and a substantially continuous wall extending from the upper perimeter edge to the lower perimeter edge; an inlet for introducing the feed stream into the walled member positioned adjacent the substantially continuous wall; and a bottom floor having an opening and extending generally beneath the lower perimeter edge; whereby a perimeter of the opening is less than a perimeter of the walled member.Type: GrantFiled: September 19, 2013Date of Patent: April 14, 2015Assignee: Syncrude Canada Ltd.Inventors: Barry Bara, Jonathan Spence, Jim Lorentz, Trevor Lloyd Hilderman, Chadwick Robert Larson, Darwin Edward Kiel
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Patent number: 8983599Abstract: There is provided an energy delivery device comprising a storage device, a discharge circuit and a disarm circuit. The discharge circuit comprises a switch electrically connected to the storage device, and is selectively operable to deliver energy from the storage device to a load, e.g., a patient needing defibrillation, preferably in a multiphasic waveform. The disarm circuit comprises the switch. Preferably, the discharge circuit comprises an H-bridge circuit. There are also provided delivery devices: which comprise a shoot-through elimination circuit; which include housing elements which, when assembled, cause electrical connection between respective components; which include a housing having a small volume and an energy storage device having a large capacitance; which comprise a shunt circuit which, when activated, prevents switching of a switch. There are also provided methods of assembly and disassembly of an energy delivery unit and methods of delivering energy to a load.Type: GrantFiled: October 28, 2013Date of Patent: March 17, 2015Assignee: ZOLL Medical CorporationInventors: Michael C. Garrett, Robert Larson, Jerry Bazata, Dean L. Milani, William J. Smirles
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Publication number: 20150020588Abstract: A system includes a particulate material sample that contains a fluid medium and a plurality of particles dispersed in the fluid medium. The system further includes a particle analysis apparatus having a sample cell and sample delivery means for delivering the particulate material sample to the sample cell, wherein the particle analysis apparatus is adapted to obtain particle information on at least one particle in that particulate material sample while the at least one particle is in the sample cell. Furthermore, the system also includes fluid manipulation means for manipulating movement of the fluid medium while the particle analysis apparatus is obtaining the particle information on the at least one particle, and a data processing apparatus that is adapted to determine a specific gravity of the at least one particle based on the obtained particle information.Type: ApplicationFiled: July 17, 2014Publication date: January 22, 2015Inventor: Thomas Robert Larson
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Publication number: 20140262516Abstract: As system for measuring drilling fluid properties includes a capillary rheometer that is adapted to measure viscosity parameters of drilling fluid. The capillary rheometer includes a feed chamber, the feed chamber having a cavity, at least a first drain port for draining fluid out of the cavity, a double wall defining an annulus that opens to the cavity, and a feed port in an outer portion of the double wall that is in fluid communication with the annulus. The capillary rheometer also includes at least a first capillary tube coupled to at least the first drain port. Additionally, the disclosed system further includes a pump that is adapted to pump fluid to the feed port.Type: ApplicationFiled: March 11, 2014Publication date: September 18, 2014Applicant: National Oilwell Varco, L.P.Inventor: Thomas Robert Larson
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Publication number: 20140251689Abstract: An apparatus includes a body having a central axis, a fluid inlet coupled to the body, the fluid inlet being adapted to receive a flow of a fluid, and a fluid outlet coupled to the body. The fluid inlet and the fluid outlet are substantially coaxially aligned so as to define a flow axis through the apparatus, and the flow axis is laterally offset from and perpendicular to the central axis of the body. A rotating blade assembly is disposed within said body and includes a plurality of blades, wherein the rotating blade assembly is adapted to be controllably rotated about the central axis so as to control a fluid level of the flow of fluid entering the fluid inlet.Type: ApplicationFiled: February 26, 2014Publication date: September 11, 2014Applicant: National Oilwell Varco, L.P.Inventor: Thomas Robert Larson
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Publication number: 20140251894Abstract: A screen panel assembly includes a screen panel and one or more raised screen components, wherein at least one of the raised screen components is disposed on the screen panel. Furthermore, each of the one or more raised screen components includes at least one inclined screen surface that defines a first plane that is oriented at a first angle relative to said screen panel. Additionally, the first plane is substantially aligned with a second plane that is oriented at a second angle relative to a third plane that is perpendicular to a displacement vector along which the screen panel assembly is accelerated by a vibratory separation device.Type: ApplicationFiled: March 7, 2014Publication date: September 11, 2014Applicant: National Oilwell Varco, LPInventors: Thomas Robert Larson, Paul William Dufilho
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Publication number: 20140188183Abstract: There is provided an energy delivery device comprising a storage device, a discharge circuit and a disarm circuit. The discharge circuit comprises a switch electrically connected to the storage device, and is selectively operable to deliver energy from the storage device to a load, e.g., a patient needing defibrillation, preferably in a multiphasic waveform. The disarm circuit comprises the switch. Preferably, the discharge circuit comprises an H-bridge circuit. There are also provided delivery devices: which comprise a shoot-through elimination circuit; which include housing elements which, when assembled, cause electrical connection between respective components; which include a housing having a small volume and an energy storage device having a large capacitance; which comprise a shunt circuit which, when activated, prevents switching of a switch. There are also provided methods of assembly and disassembly of an energy delivery unit and methods of delivering energy to a load.Type: ApplicationFiled: October 28, 2013Publication date: July 3, 2014Applicant: Zoll Medical CorporationInventors: Michael C. GARRETT, Robert LARSON, Jerry BAZATA, Dean L. MILANI, William J. SMIRLES
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Publication number: 20140014462Abstract: A feedwell for a gravity separation vessel for introducing a feed stream such as oil sand slurry to the gravity separation vessel is provided comprising a walled member having an upper perimeter edge, a lower perimeter edge and a substantially continuous wall extending from the upper perimeter edge to the lower perimeter edge; an inlet for introducing the feed stream into the walled member positioned adjacent the substantially continuous wall; and a bottom floor having an opening and extending generally beneath the lower perimeter edge; whereby a perimeter of the opening is less than a perimeter of the walled member.Type: ApplicationFiled: September 19, 2013Publication date: January 16, 2014Applicant: SYNCRUDE CANADA LTD. in trust for the owners of the Syncrude ProjectInventors: BARRY BARA, JONATHAN SPENCE, JIM LORENTZ, TREVOR LLOYD HILDERMAN, CHADWICK ROBERT LARSON, DARWIN EDWARD KIEL
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Patent number: 8622220Abstract: A screen for a vibratory separator includes at least two layers of screening material, at least one layer of screening material made of a plurality of intersecting wires having a coating containing nickel or chromium. Wires in the screening material including first shute wires and first warp wires at a right angles to each other. The first warp wires at a right angle to first shute wires, the second wires including second shute wires and second warp wires, each of the second shute wires at a right angle to second warp wires, and each of the second warp wires at a right angle to second shute wires. The first warp wires are aligned with second warp wires, and each of the first shute wires are aligned with a second shute wire.Type: GrantFiled: August 31, 2007Date of Patent: January 7, 2014Assignee: Varco I/PInventors: David Lee Schulte, Jr., Thomas Robert Larson, Paul William Dufilho
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Patent number: 8550258Abstract: A feedwell for a gravity separation vessel for introducing a feed stream such as oil sand slurry to the gravity separation vessel is provided comprising a walled member having an upper perimeter edge, a lower perimeter edge and a substantially continuous wall extending from the upper perimeter edge to the lower perimeter edge; an inlet for introducing the feed stream into the walled member positioned adjacent the substantially continuous wall; and a bottom floor having an opening and extending generally beneath the lower perimeter edge; whereby a perimeter of the opening is less than a perimeter of the walled member.Type: GrantFiled: September 14, 2010Date of Patent: October 8, 2013Assignee: Syncrude Canada Ltd.Inventors: Barry Bara, Jonathan Spence, Jim Lorentz, Trevor Lloyd Hilderman, Chadwich Robert Larson, Darwin Edward Kiel
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Patent number: 8469116Abstract: Techniques for controlling drilling fluid cleaning apparatus that reclaim lost circulation material from spent drilling fluid are disclosed. In one embodiment, a system includes a tank, a density separation device, and a fluid density control system. The tank holds spent drilling fluid containing drilling fluid, lost circulation material, coarse solids and fine solids. The density separation device is coupled to an outlet of the tank. The density separation device provides an overflow stream and an underflow stream. The overflow stream contains less dense material than the underflow stream. The fluid density control system is configured to adjust the density of the spent drilling fluid provided to the density separation device by recirculating a portion of the underflow stream into the tank.Type: GrantFiled: July 30, 2010Date of Patent: June 25, 2013Assignee: National Oilwell Varco, L.P.Inventor: Thomas Robert Larson
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Patent number: 8352504Abstract: Under the present invention, a work request is received on one of the systems put into an application queue that corresponds to a process needed to fulfill the work request. Thereafter, an index enque queue is attempted to be allocated to the work request. If no such queue can be allocated in a predetermined amount of time, the work request can be re-routed to another system. If, however, the index enque queue is allocated within the predetermined amount of time, information relating to the work request is stored in a base enque queue, and a working directory with an output subdirectory is created. Data from the work request is stored in the working directory, and the process needed to fulfill the work request is selected and launched. Results of the fulfillment are stored in the output subdirectory for subsequent transfer back to system that originally sent the work request.Type: GrantFiled: February 24, 2005Date of Patent: January 8, 2013Assignee: International Business Machines CorporationInventor: Robert A. Larson
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Patent number: 8301245Abstract: There is provided an energy delivery device comprising a storage device, a discharge circuit and a disarm circuit. The discharge circuit comprises a switch electrically connected to the storage device, and is selectively operable to deliver energy from the storage device to a load, e.g., a patient needing defibrillation, preferably in a multiphasic waveform. The disarm circuit comprises the switch. Preferably, the discharge circuit comprises an H-bridge circuit. There are also provided delivery devices: which comprise a shoot-through elimination circuit; which include housing elements which, when assembled, cause electrical connection between respective components; which include a housing having a small volume and an energy storage device having a large capacitance; which comprise a shunt circuit which, when activated, prevents switching of a switch. There are also provided methods of assembly and disassembly of an energy delivery unit and methods of delivering energy to a load.Type: GrantFiled: January 25, 2010Date of Patent: October 30, 2012Assignee: Zoll Medical CorporationInventors: Michael C Garrett, Robert Larson, Jerry Bazata, Dean L Milani, William J Smirles
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Patent number: 8202415Abstract: Methods and systems are disclosed for treating a drilling fluid mixture including feeding the drilling fluid mixture to a hydrocyclone (or hydrocyclones) with a flow-volume-adjustable inlet for controlling flow of the drilling fluid mixture into the hydrocyclone(s). This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).Type: GrantFiled: April 14, 2009Date of Patent: June 19, 2012Assignee: National Oilwell Varco, L.P.Inventor: Thomas Robert Larson
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Publication number: 20120108936Abstract: The present invention relates generally to systems, apparatuses, and methods for obtaining a fluid sample from a patient. In particular, the present invention relates to a various types of fluid access interfaces for enabling contact between a patient blood sample and blood parameter sensors for the measurement of physiological parameters and blood constituents.Type: ApplicationFiled: January 9, 2012Publication date: May 3, 2012Inventors: Daniel Goldberger, Eric Shreve, Wayne Siebrecht, Benny Pesach, Gidi Pesach, Gabby Bitton, Ron Nagar, Dalia Argaman, Stephen Bellomo, Robert Larson, Larry Johnson, Jill Klomhaus
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Publication number: 20120059389Abstract: Disclosed are various implantable medical devices adapted and configured to operation with a micro-generator comprising: an elongated housing; one or more longitudinally slidable elongated magnets; one or more coils positioned exteriorly, interiorly or integrally along at least a portion of the housing; a power wire in electrical communication with the one or more coils and with an implantable medical device; wherein the implantable micro-generator is adapted and configured to generate energy and communicate the generated energy to the implantable medical device. Additionally, methods of deploying and using the medical devices are contemplated, as well as systems, kits, and communication networks.Type: ApplicationFiled: February 22, 2010Publication date: March 8, 2012Inventors: Loren Robert Larson, Brian Lane Larson, Peter Jacobson, Paul Paspa
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Publication number: 20120024602Abstract: Techniques for controlling drilling fluid cleaning apparatus that reclaim lost circulation material from spent drilling fluid are disclosed. In one embodiment, a system includes a tank, a density separation device, and a fluid density control system. The tank holds spent drilling fluid containing drilling fluid, lost circulation material, coarse solids and fine solids. The density separation device is coupled to an outlet of the tank. The density separation device provides an overflow stream and an underflow stream. The overflow stream contains less dense material than the underflow stream. The fluid density control system is configured to adjust the density of the spent drilling fluid provided to the density separation device by recirculating a portion of the underflow stream into the tank.Type: ApplicationFiled: July 30, 2010Publication date: February 2, 2012Applicant: NATIONAL OILWELL VARCO L. P.Inventor: Thomas Robert LARSON
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Patent number: 8092385Abstract: The present invention relates generally to systems, apparatuses, and methods for obtaining a fluid sample from a patient. In particular, the present invention relates to a various types of fluid access interfaces for enabling contact between a patient blood sample and blood parameter sensors for the measurement of physiological parameters and blood constituents.Type: GrantFiled: May 23, 2006Date of Patent: January 10, 2012Assignee: IntelliDx, Inc.Inventors: Daniel Goldberger, Eric Shreve, Wayne Siebrecht, Benny Pesach, Gidi Pesach, Gabby Bitton, Ron Nagar, Dalia Argaman, Stephen Bellomo, Robert Larson, Larry Johnson, Jill Klomhaus