Patents by Inventor Robert Jen-Yue Du
Robert Jen-Yue Du 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: 10822907Abstract: A wellhead assembly includes an outer wellhead member having a bore and an inner wellhead member located in the bore, defining an annular pocket between the outer and inner wellhead members. A sealing assembly is located within the annular pocket, the sealing assembly having an annular seal and an energizing ring. The energizing ring engages inner and outer legs of the annular seal to push the inner and outer legs into sealing engagement with the inner and outer wellhead members. A retainer nut is threadingly attached to the free end of the outer leg of the sealing assembly. Mating grooves are located on one of an inner diameter of the retainer nut and an outer diameter of the energizing ring and mating protrusions located on the other. The mating protrusions mate with the mating grooves to prevent relative axial movement between the energizing ring and the annular seal.Type: GrantFiled: March 18, 2019Date of Patent: November 3, 2020Assignee: VETCO GRAY INC.Inventors: Robert Jen-Yue Du, Dinesh Narayan, Durai Balaji, David Lawrence Ford, Baozhi Zhu, Krishnanand Anandan, Kendra Limbrick
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Publication number: 20190234169Abstract: A wellhead assembly includes an outer wellhead member having a bore and an inner wellhead member located in the bore, defining an annular pocket between the outer and inner wellhead members. A sealing assembly is located within the annular pocket, the sealing assembly having an annular seal and an energizing ring. The energizing ring engages inner and outer legs of the annular seal to push the inner and outer legs into sealing engagement with the inner and outer wellhead members. A retainer nut is threadingly attached to the free end of the outer leg of the sealing assembly. Mating grooves are located on one of an inner diameter of the retainer nut and an outer diameter of the energizing ring and mating protrusions located on the other. The mating protrusions mate with the mating grooves to prevent relative axial movement between the energizing ring and the annular seal.Type: ApplicationFiled: March 18, 2019Publication date: August 1, 2019Applicant: Vetco Gray, LLCInventors: Robert Jen-Yue Du, Dinesh Narayan, Durai Balaji, David Lawrence Ford, Baozhi Zhu, Krishnanand Anandan, Kendra Limbrick
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Patent number: 10233711Abstract: A wellhead assembly includes an outer wellhead member having a bore and an inner wellhead member located in the bore, defining an annular pocket between the outer and inner wellhead members. A sealing assembly is located within the annular pocket, the sealing assembly having an annular seal and an energizing ring. The energizing ring engages inner and outer legs of the annular seal to push the inner and outer legs into sealing engagement with the inner and outer wellhead members. A retainer nut is threadingly attached to the free end of the outer leg of the sealing assembly. Mating grooves are located on one of an inner diameter of the retainer nut and an outer diameter of the energizing ring and mating protrusions located on the other. The mating protrusions mate with the mating grooves to prevent relative axial movement between the energizing ring and the annular seal.Type: GrantFiled: November 2, 2015Date of Patent: March 19, 2019Assignee: VETCO GRAY, LLCInventors: Robert Jen-Yue Du, Dinesh Narayan, Durai Balaji, David Lawrence Ford, Baozhi Zhu, Krishnanand Anandan, Kendra Limbrick
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Patent number: 9982503Abstract: A wellhead housing has a bore with an inner seal surface. A hanger with an outer seal surface lands in the bore. Wickers are formed on at least one of the seal surfaces. A metal seal ring lands between the seal surfaces, the seal ring having annular inner and outer legs separated by an annular slot. An energizing ring has inner and outer diameter surfaces that slide against the inner and outer legs of the seal ring when the energizing ring is moved downward in the slot to radially deform the inner and outer legs into sealing engagement with the wellhead housing and hanger. The energizing ring has an inner diameter relief and an outer diameter relief, each being a partially circumferential groove extending upward from a lower rim. The reliefs define a bridge of narrower radial thickness in the lower rim.Type: GrantFiled: March 31, 2016Date of Patent: May 29, 2018Assignee: VETCO GRAY, LLCInventors: Joseph W. Pallini, Rick C. Hunter, David L. Ford, Robert Jen-Yue Du
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Publication number: 20170284165Abstract: A wellhead housing has a bore with an inner seal surface. A hanger with an outer seal surface lands in the bore. Wickers are formed on at least one of the seal surfaces. A metal seal ring lands between the seal surfaces, the seal ring having annular inner and outer legs separated by an annular slot. An energizing ring has inner and outer diameter surfaces that slide against the inner and outer legs of the seal ring when the energizing ring is moved downward in the slot to radially deform the inner and outer legs into sealing engagement with the wellhead housing and hanger. The energizing ring has an inner diameter relief and an outer diameter relief, each being a partially circumferential groove extending upward from a lower rim. The reliefs define a bridge of narrower radial thickness in the lower rim.Type: ApplicationFiled: March 31, 2016Publication date: October 5, 2017Inventors: Joseph W. Pallini, Rick C. Hunter, David L. Ford, Robert Jen-Yue Du
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Publication number: 20170122058Abstract: A wellhead assembly includes an outer wellhead member having a bore and an inner wellhead member located in the bore, defining an annular pocket between the outer and inner wellhead members. A sealing assembly is located within the annular pocket, the sealing assembly having an annular seal and an energizing ring. The energizing ring engages inner and outer legs of the annular seal to push the inner and outer legs into sealing engagement with the inner and outer wellhead members. A retainer nut is threadingly attached to the free end of the outer leg of the sealing assembly. Mating grooves are located on one of an inner diameter of the retainer nut and an outer diameter of the energizing ring and mating protrusions located on the other. The mating protrusions mate with the mating grooves to prevent relative axial movement between the energizing ring and the annular seal.Type: ApplicationFiled: November 2, 2015Publication date: May 4, 2017Applicant: VETCO GRAY INC.Inventors: Robert Jen-Yue Du, Dinesh Narayan, Durai Balaji, David Lawrence Ford, Baozhi Zhu, Krishnanand Anandan, Kendra Limbrick
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Patent number: 8955910Abstract: A recliner heart spacer ring includes a body portion having a substantially consistent inner diameter. First and second inner cutouts are diametrically opposed from one another. First and second pairs of retention features are diametrically opposed from one another and are adapted to engage a swing gate of a recliner heart. The recliner heart spacer ring guides the swing gate as the swing gate transitions between a range of positions associated with a seat back.Type: GrantFiled: April 25, 2013Date of Patent: February 17, 2015Assignee: Ford Global Technologies, LLCInventors: Johnathan Andrew Line, Khaled Ayyash, Jeffrey Gabalski, Robert Jen-Yue Du
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Publication number: 20130313877Abstract: A recliner heart spacer ring includes a body portion having a substantially consistent inner diameter. First and second inner cutouts are diametrically opposed from one another. First and second pairs of retention features are diametrically opposed from one another and are adapted to engage a swing gate of a recliner heart. The recliner heart spacer ring guides the swing gate as the swing gate transitions between a range of positions associated with a seat back.Type: ApplicationFiled: April 25, 2013Publication date: November 28, 2013Inventors: Johnathan Andrew Line, Khaled Ayyash, Jeffrey Gabalski, Robert Jen-Yue Du