Patents by Inventor Tianle Guo
Tianle Guo 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: 11999888Abstract: The present disclosure relates to the field of preparation of compound semiconductor nanomaterials, and in particular to a method for in-situ modification of mercury quantum dots in a traditional thermal injection process. It is characterized in that, in the traditional thermal injection process for synthesis of HgTe quantum dots, after a certain reaction time, a low boiling point polar solvent that is incompatible with a reaction solvent is rapidly injected, so that an interfacial separation of two liquid phases occurs in a mixed reaction, and then a selective crystal oriented surface modification is conducted on surfaces of mercury quantum dots.Type: GrantFiled: November 9, 2022Date of Patent: June 4, 2024Assignee: Shanghai Institute of Technical Physics Chinese Academy of SciencesInventors: Jingjing Liu, Jianlu Wang, Tianle Guo, Xinning Huang, Xiangjian Meng, Hong Shen, Tie Lin, Junhao Chu
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Publication number: 20240068360Abstract: Wellhead system, assembly and method monitors landing or retrieving of wellhead component at pre-determined landed position in main bore of wellhead member of wellhead. System includes running tool, instrument spool and sensor assembly. Running tool couples to wellhead component, lands or retrieves wellhead component within main bore of wellhead member, decouples from wellhead component, and has passive triggering device disposed in or on running tool. Instrument spool is pressure-containing, connects within wellhead at location above landed position of wellhead component, forms bore to align with main bore of wellhead, provides clearance for the wellhead component and running tool to be run therethrough, and has vertical height dimension such that, in pre-determined landed position, passive triggering device is located in bore of instrument spool.Type: ApplicationFiled: December 21, 2021Publication date: February 29, 2024Applicant: STREAM-FLO INDUSTRIES LTD.Inventors: Keith David FARQUHARSON, Kevin Andrew ELGERT, Tianle GUO, Hossam GHARIB, Charles Lorin GORDON
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Publication number: 20230174863Abstract: The present disclosure relates to the field of preparation of compound semiconductor nanomaterials, and in particular to a method for in-situ modification of mercury quantum dots in a traditional thermal injection process. It is characterized in that, in the traditional thermal injection process for synthesis of HgTe quantum dots, after a certain reaction time, a low boiling point polar solvent that is incompatible with a reaction solvent is rapidly injected, so that an interfacial separation of two liquid phases occurs in a mixed reaction, and then a selective crystal oriented surface modification is conducted on surfaces of mercury quantum dots.Type: ApplicationFiled: November 9, 2022Publication date: June 8, 2023Inventors: Jingjing Liu, Jianlu Wang, Tianle Guo, Xinning Huang, Xiangjian Meng, Hong Shen, Tie Lin, Junhao Chu
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Patent number: 11047486Abstract: An expanding gate valve and method is provided for bidirectional sealing capability against pressure, whether the direction of pressure is upstream or downstream. The bidirectional annular seat seals against the gate assembly against pressure from the normal wellhead direction, typically upstream. For sealing against pressure in the opposite direction, the seat is formed with an annular recess extending radially outwardly from the central bore of the annular seat so that a flex portion of the seat formed between the recess and the front sealing face of the annular seat at the central bore flexes toward the gate assembly against this pressure. The front face of the bidirectional seat forms a raised annular sealing portion on the flex portion of the seat adjacent the central bore to provide sealing contact with the gate assembly in the expanded condition when the flex portion flexes toward the gate assembly.Type: GrantFiled: February 21, 2018Date of Patent: June 29, 2021Assignee: Stream-Flo Industries Ltd.Inventors: Keith David Farquharson, Tianle Guo, Thomas L. Gust, Tony M. Lam, Andrew Francis Masson
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Publication number: 20180238456Abstract: An expanding gate valve and method is provided for bidirectional sealing capability against pressure, whether the direction of pressure is upstream or downstream. The bidirectional annular seat seals against the gate assembly against pressure from the normal wellhead direction, typically upstream. For sealing against pressure in the opposite direction, the seat is formed with an annular recess extending radially outwardly from the central bore of the annular seat so that a flex portion of the seat formed between the recess and the front sealing face of the annular seat at the central bore flexes toward the gate assembly against this pressure. The front face of the bidirectional seat forms a raised annular sealing portion on the flex portion of the seat adjacent the central bore to provide sealing contact with the gate assembly in the expanded condition when the flex portion flexes toward the gate assembly.Type: ApplicationFiled: February 21, 2018Publication date: August 23, 2018Inventors: Keith David FARQUHARSON, Tianle GUO, Thomas L. GUST, Tony M. LAM, Andrew Francis MASSON
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Patent number: 9243469Abstract: A ram type blowout preventer having a seal on each ram, extending across the front face, rearwardly and then over the top portion or the bottom portion of the ram. Each ram forms a leading edge portion above or below the front face seal, so as opposing rams move into the extended sealing position, the leading edge portions of the rams press against each other, imparting a generally vertical movement to bring the seals on the front faces into sealing engagement with each other and to energize the seals extending over the top or bottom portions against the ram bores. The front face of each ram may include a portion which is inclined toward the central bore. Rope packing seals may be provided on the rams having a vertical offset at the front faces of the rams such that rope packing seals on opposing front faces seal against each other.Type: GrantFiled: June 20, 2014Date of Patent: January 26, 2016Assignee: Stream-Flo Industries Ltd.Inventors: Tianle Guo, Tony M. Lam, Keith David Farquharson
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Patent number: 8960276Abstract: A wellhead seal device forms metal seals in an annular space between inner and outer tubular members such as a rough casing held within aligned casing and tubing heads. An annular metal sealing sleeve has a lower portion seated in the annular space, and an upper portion which forms an inner sealing annulus adjacent the outer wall of the inner tubular member. A metal seal ring and a wedge ring are located in the inner sealing annulus. A retaining ring is retained by the upper portion above the wedge ring. Threaded seal energizing members extend through the retaining ring to push downwardly on the wedge ring and compress the metal seal ring radially inwardly to form a metal seal to the inner tubular member and thus seal the inner sealing annulus. The lower portion of the annular metal sealing sleeve may seal to the casing head and to the casing.Type: GrantFiled: September 21, 2011Date of Patent: February 24, 2015Assignee: Stream-Flo Industries Ltd.Inventors: Heinrich Lang, Tony M. Lam, Tianle Guo
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Publication number: 20140299797Abstract: A ram type blowout preventer having a seal on each ram, extending across the front face, rearwardly and then over the top portion or the bottom portion of the ram. Each ram forms a leading edge portion above or below the front face seal, so as opposing rams move into the extended sealing position, the leading edge portions of the rams press against each other, imparting a generally vertical movement to bring the seals on the front faces into sealing engagement with each other and to energize the seals extending over the top or bottom portions against the ram bores. The front face of each ram may include a portion which is inclined toward the central bore. Rope packing seals may be provided on the rams having a vertical offset at the front faces of the rams such that rope packing seals on opposing front faces seal against each other.Type: ApplicationFiled: June 20, 2014Publication date: October 9, 2014Applicant: Stream-Flo Industries Ltd.Inventors: Tianle GUO, Tony M. Lam, Keith David Farquharson
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Patent number: 8807516Abstract: A blowout preventer (BOP) is provided in which each ram includes a primary rope packing seal formed from a first length of rope packing extending horizontally across the front face, rearwardly and then either or both of upwardly and downwardly over the top and/or bottom portion of the ram. The primary rope packing seal is held in, so as to protrude radially outwardly from, a continuous first groove formed in the ram. The continuous first groove is adapted to accommodate joined abutting ends or overlapping ends of the first length of rope packing. A secondary rope packing seal and a circumferential rope packing seal may be provided on the ram.Type: GrantFiled: December 14, 2010Date of Patent: August 19, 2014Assignee: Stream-Flo Industries Ltd.Inventors: Tianle Guo, Tony M. Lam
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Patent number: 8783643Abstract: A ram type blowout preventer having a seal on each ram, extending across the front face, rearwardly and then over the top portion or the bottom portion of the ram. Each ram forms a leading edge portion above or below the front face seal, so as opposing rams move into the extended sealing position, the leading edge portions of the rams press against each other, imparting a generally vertical movement to bring the seals on the front faces into sealing engagement with each other and to energize the seals extending over the top or bottom portions against the ram bores. The front face of each ram may include a portion which is inclined toward the central bore. Rope packing seals may be provided on the rams having a vertical offset at the front faces of the rams such that rope packing seals on opposing front faces seal against each other.Type: GrantFiled: May 16, 2012Date of Patent: July 22, 2014Assignee: Stream-Flo Industries Ltd.Inventors: Tianle Guo, Tony M. Lam, Keith David Farquharson
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Publication number: 20130126763Abstract: A ram type blowout preventer having a seal on each ram, extending across the front face, rearwardly and then over the top portion or the bottom portion of the ram. Each ram forms a leading edge portion above or below the front face seal, so as opposing rams move into the extended sealing position, the leading edge portions of the rams press against each other, imparting a generally vertical movement to bring the seals on the front faces into sealing engagement with each other and to energize the seals extending over the top or bottom portions against the ram bores. The front face of each ram may include a portion which is inclined toward the central bore. Rope packing seals may be provided on the rams having a vertical offset at the front faces of the rams such that rope packing seals on opposing front faces seal against each other.Type: ApplicationFiled: May 16, 2012Publication date: May 23, 2013Applicant: Stream-Flo Industries Ltd.Inventors: Tianle GUO, Tony M. LAM, Keith David FARQUHARSON
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Publication number: 20120067597Abstract: A wellhead seal device forms metal seals in an annular space between inner and outer tubular members such as a rough casing held within aligned casing and tubing heads. An annular metal sealing sleeve has a lower portion seated in the annular space, and an upper portion which forms an inner sealing annulus adjacent the outer wall of the inner tubular member. A metal seal ring and a wedge ring are located in the inner sealing annulus. A retaining ring is retained by the upper portion above the wedge ring. Threaded seal energizing members extend through the retaining ring to push downwardly on the wedge ring and compress the metal seal ring radially inwardly to form a metal seal to the inner tubular member and thus seal the inner sealing annulus. The lower portion of the annular metal sealing sleeve may seal to the casing head and to the casing.Type: ApplicationFiled: September 21, 2011Publication date: March 22, 2012Applicant: Stream-Flo Industries Ltd.Inventors: Heinrich LANG, Tony M. Lam, Tianle Guo
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Patent number: 8066061Abstract: A reusable metal seal for a wellhead provides a metal-to-metal seal and includes upper and lower tapered sealing flanks which may be deflected by tapered wall surfaces on the wellhead engaging the taper sealing flanks, and the seal may have a plurality of annular relief grooves.Type: GrantFiled: April 27, 2009Date of Patent: November 29, 2011Assignee: Stream-Flo Industries Ltd.Inventors: Keith D. Farquharson, Tianle Guo, Heinrich Lang, Tony Lam, Kevin Paul Schneider
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Publication number: 20110140013Abstract: A blowout preventer (BOP) is provided in which each ram includes a primary rope packing seal formed from a first length of rope packing extending horizontally across the front face, rearwardly and then either or both of upwardly and downwardly over the top and/or bottom portion of the ram. The primary rope packing seal is held in, so as to protrude radially outwardly from, a continuous first groove formed in the ram. The continuous first groove is adapted to accommodate joined abutting ends or overlapping ends of the first length of rope packing. A secondary rope packing seal and a circumferential rope packing seal may be provided on the ram.Type: ApplicationFiled: December 14, 2010Publication date: June 16, 2011Applicant: Stream-Flo Industries Ltd.Inventors: Tianle GUO, Tony M. Lam
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Patent number: 7562859Abstract: A gate valve for controlling fluid flow, with a valve body forming a cylindrical flowbore and a gate cavity intersecting the flowbore to provide opposed openings. Seat pockets formed in the opposed openings may optionally include a metal carrier ring. A non-metallic bridging seal formed as a face seal is provided between the first seal surface of the annular seat element and the seat pocket. The bridging seal bridges any gap formed at the first seal surface such that sealing engagement is maintained across the gap at all times as the gate moves between open and closed positions, while still permitting limited axial movement of the annular seat element. Preferred embodiments of the bridging seal include tongue and groove seals and bridge ring inserts. A secondary seal to the seat pocket may be included as a corner, periphery or face seal, for example as an O-ring, U-ring or wiper seal.Type: GrantFiled: December 10, 2007Date of Patent: July 21, 2009Assignee: Stream-Flo Industries Ltd.Inventors: Tony M. Lam, Andrew F. Masson, Tianle Guo, Glen M. Eleniak
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Publication number: 20080164437Abstract: A gate valve for controlling fluid flow, with a valve body forming a cylindrical flowbore and a gate cavity intersecting the flowbore to provide opposed openings. Seat pockets formed in the opposed openings may optionally include a metal carrier ring. A non-metallic bridging seal formed as a face seal is provided between the first seal surface of the annular seat element and the seat pocket. The bridging seal bridges any gap formed at the first seal surface such that sealing engagement is maintained across the gap at all times as the gate moves between open and closed positions, while still permitting limited axial movement of the annular seat element. Preferred embodiments of the bridging seal include tongue and groove seals and bridge ring inserts. A secondary seal to the seat pocket may be included as a corner, periphery or face seal, for example as an O-ring, U-ring or wiper seal.Type: ApplicationFiled: December 10, 2007Publication date: July 10, 2008Applicant: Stream-Flo Industries Ltd.Inventors: Tony M. Lam, Andrew F. Masson, Tianle Guo, Glen M. Eleniak