Patents by Inventor Sibu Varghese
Sibu Varghese 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: 10945569Abstract: A body dryer system includes a drive unit to heat and pressurize air; a head unit to expel air; a power system and a control system; the power system and the control system are to activate the drive unit; and air is heated and pressurized via the drive unit and pushed to the head unit to be expelled.Type: GrantFiled: May 21, 2019Date of Patent: March 16, 2021Inventor: Sibu Varghese
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Patent number: 10928098Abstract: A multistage air compressor unit includes an air inlet; a turbo axial compressor operated via a motor; a heating element in direct communication with the turbo axial fan blade; and a converging chamber directly connected to the heating element; air is pulled in via the air inlet and the turbo axial fan blade for a first stage of compression; and the heating element and converging chamber provide additional stages of compression.Type: GrantFiled: May 21, 2019Date of Patent: February 23, 2021Inventor: Sibu Varghese
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Patent number: 10214987Abstract: A downhole tool including a settable member, a scale removal feature depending from the settable member, the scale removal feature including a protrusion extending radially inwardly from an inside dimension of the settable member.Type: GrantFiled: August 31, 2016Date of Patent: February 26, 2019Assignee: BAKER HUGHES, A GE COMPANY, LLCInventors: Sibu Varghese, Russell Kurtis Fleetwood, Sathish Kalaimani
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Patent number: 10087688Abstract: A shock absorbing device for a subterranean tool features a plurality of sequentially shearing shear pins that shear after incremental relative motion of the affected components. The travel stop is located internally to a series of spaced collets supported off a ring. Impact of an impact ring segments on the travel stop segments located internally to each collet provides a shock absorbing capability as the collets are placed in tension and deflect by radial flexing in opposed directions. The relatively moving parts are rotationally locked with the last of the shear pins to shear. A backup pair of contacting shoulders are provided if the primary engaging shoulders fail to support the lower end of the tool after impact. A snap ring maintains the parts in the shifted position after impact.Type: GrantFiled: February 12, 2015Date of Patent: October 2, 2018Assignee: Baker Hughes, a GE company, LLCInventors: Sibu Varghese, Ganesh K. Nanaware, Andy Tom
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Publication number: 20180208991Abstract: Some embodiments are directed to a method of aiding the diagnosis of dysplasia in a subject that includes providing a sample from the oesophagus of the subject; assaying the sample for expression of each of the genes shown in the ‘40 genes’ column of Table 1; normalising the expression levels of the genes in step (b) to expression levels of reference gene(s) from a non-dysplastic sample; and determining from the normalised expression levels of step (c) a gene signature score for the sample, wherein a gene signature score greater than a reference threshold indicates presence of dysplasia in the subject. Some embodiments also relate to devices, compositions, primer sets, arrays, methods of treatment and computer programs.Type: ApplicationFiled: July 1, 2016Publication date: July 26, 2018Inventors: Rebecca C. FITZGERALD, Sibu VARGHESE, Richard NEWTON, Lorenz WERNISCH
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Publication number: 20180058172Abstract: A downhole tool including a settable member, a scale removal feature depending from the settable member, the scale removal feature including a protrusion extending radially inwardly from an inside dimension of the settable member.Type: ApplicationFiled: August 31, 2016Publication date: March 1, 2018Applicant: Baker Hughes IncorporatedInventors: Sibu Varghese, Russell Kurtis Fleetwood, Sathish Kalaimani
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Patent number: 9816329Abstract: Quick connect arrangements for securing together first and second tubular members. A securing sleeve helps secure the connection together and include locking arrangements which ensure that the securing sleeve cannot be inadvertently unthreaded.Type: GrantFiled: August 12, 2014Date of Patent: November 14, 2017Assignee: BAKER HUGES, A GE COMPANY, LLCInventors: Sibu Varghese, Matthew Krueger
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Publication number: 20160237761Abstract: A shock absorbing device for a subterranean tool features a plurality of sequentially shearing shear pins that shear after incremental relative motion of the affected components. The travel stop is located internally to a series of spaced collets supported off a ring. Impact of an impact ring segments on the travel stop segments located internally to each collet provides a shock absorbing capability as the collets are placed in tension and deflect by radial flexing in opposed directions. The relatively moving parts are rotationally locked with the last of the shear pins to shear. A backup pair of contacting shoulders are provided if the primary engaging shoulders fail to support the lower end of the tool after impact. A snap ring maintains the parts in the shifted position after impact.Type: ApplicationFiled: February 12, 2015Publication date: August 18, 2016Applicant: BAKER HUGHES INCORPORATEDInventors: Sibu Varghese, Ganesh K. Nanaware, Andy Tom
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Publication number: 20160047502Abstract: Quick connect arrangements for securing together first and second tubular members. A securing sleeve helps secure the connection together and include locking arrangements which ensure that the securing sleeve cannot be inadvertently unthreaded.Type: ApplicationFiled: August 12, 2014Publication date: February 18, 2016Applicant: Baker Hughes IncorporatedInventors: Sibu Varghese, Matthew Krueger
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Patent number: 9163729Abstract: A sealing system features a primary and secondary bullet seals where the secondary seal is preferably bidirectional and is activated to spread fins with a t-shaped ring that is driven with differential pressure to advance after temperature exposure softens a stop material on the extending portion of the t-shaped ring. Opposed t-shaped rings are disposed at ends of the backup ring that have fins at both ends. Advancement of the t-shaped ring spreads the fins and retains them in the spread condition for enhanced sealing. Optionally the primary seal can also be actuated with a similar t-shaped ring with a temperature sensitive delay feature.Type: GrantFiled: January 24, 2013Date of Patent: October 20, 2015Assignee: Baker Hughes IncorporatedInventor: Sibu Varghese
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Patent number: 8939213Abstract: Systems, devices, and methods for providing proper spacing and alignment of multi-well modular drilling templates and associated wells are provided. An example embodiment of a system includes a primary well upon which a multi-well modular drilling template is landed, and a second well upon which a specially configured spacer device is landed. The spacer device includes an alignment frame which engages guide arms of the template to force the spacer device into proper axial alignment. The spacer device includes an elongated arm and a guide funnel which provide the proper spacing and proper location for inserting a third well. The third well can be used as the central well for a second multi-well modular drilling template.Type: GrantFiled: April 26, 2012Date of Patent: January 27, 2015Assignee: Vetco Gray Inc.Inventors: Sibu Varghese, Christopher Loftin, Edward Rositas, Arjin Nolan, Jesus Aldeguer
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Patent number: 8905156Abstract: A template for use in positioning subsea wellbores that has a drop away funnel that extends laterally from the template. The drop away funnel is used to locate a piling adjacent the wellbores and is selectively detached from the template after installing the piling. A tang and clevis type assembly mounts the drop away funnel to the template, where the tang and clevis are coupled together with a main stud. The main stud is oriented substantially parallel with an axis of the drop away funnel; so that when the stud is removed, the drop away funnel can decouple from the template and slide axially downward along the piling.Type: GrantFiled: April 10, 2012Date of Patent: December 9, 2014Assignee: Vetco Gray Inc.Inventors: Sibu Varghese, Clint Trimble, Christopher Loftin, Jeffrey Allen Raynal
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Publication number: 20140346739Abstract: A bullet seal tail section is reconfigured from a groove flanked by tapered surfaces that engage an o-ring seal to an end design on the bullet seal that has tapered surfaces that meet at a first angle and a pin with an end taper that has counterpart surfaces that slope more with respect to an axis of the seal. The o-ring is on an opposite side of the pin from the tail of the bullet seal. Large differentials evenly push out the bullet seal tail and uniformly compress the o-ring for a larger contact area at greater contact force than previously known. The o-ring is reformed into a generally quadrilateral shape from round due to the applied loading.Type: ApplicationFiled: May 24, 2013Publication date: November 27, 2014Inventors: Sibu Varghese, Goang-Ding Shyu
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Patent number: 8833461Abstract: A subsea wellhead assembly includes a housing with a bore. A hanger is lowered into the housing, the hanger having at least one downward facing load shoulder. An expandable load ring is carried on the hanger. When casing weight is applied to the hanger, the weight energizes the load ring, causing it to expand and thereby increase the contact area between a load shoulder on the load ring and a load shoulder on the housing. The shoulders create a path for the load to be transferred to the housing. The increase in contact area increases the load carrying capacity of the hanger. The load ring expansion is limited to elastic expansion to allow it to return to a retracted position when the casing weight is removed.Type: GrantFiled: June 8, 2011Date of Patent: September 16, 2014Assignee: Vetco Gray Inc.Inventors: Sibu Varghese, Chad Yates
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Publication number: 20140203512Abstract: A sealing system features a primary and secondary bullet seals where the secondary seal is preferably bidirectional and is activated to spread fins with a t-shaped ring that is driven with differential pressure to advance after temperature exposure softens a stop material on the extending portion of the t-shaped ring. Opposed t-shaped rings are disposed at ends of the backup ring that have fins at both ends. Advancement of the t-shaped ring spreads the fins and retains them in the spread condition for enhanced sealing. Optionally the primary seal can also be actuated with a similar t-shaped ring with a temperature sensitive delay feature.Type: ApplicationFiled: January 24, 2013Publication date: July 24, 2014Applicant: BAKER HUGHES INCORPORATEDInventor: Sibu Varghese
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Patent number: 8689888Abstract: An outer wellhead member has a bore with a first profile portion and an annular recess. A tubular inner wellhead member with a centralizer/overpull ring is lowered into the outer wellhead member. The centralizer/overpull ring is biased to expand outward to engage the bore of the outer wellhead member to center the inner wellhead member within the bore as the inner wellhead member is lowered through the bore. The recess of the outer wellhead member is adapted to receive the centralizer/overpull ring and oppose axial movement of the centralizer/overpull ring to enable an upward test pull of the inner wellhead member.Type: GrantFiled: October 27, 2010Date of Patent: April 8, 2014Assignee: Vetco Gray Inc.Inventors: Sibu Varghese, Ryan Herbel, Dien Nguyen, Javier Garcia
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Publication number: 20130284444Abstract: Systems, devices, and methods for providing proper spacing and alignment of multi-well modular drilling templates and associated wells are provided. An example embodiment of a system includes a primary well upon which a multi-well modular drilling template is landed, and a second well upon which a specially configured spacer device is landed. The spacer device includes an alignment frame which engages guide arms of the template to force the spacer device into proper axial alignment. The spacer device includes an elongated arm and a guide funnel which provide the proper spacing and proper location for inserting a third well. The third well can be used as the central well for a second multi-well modular drilling template.Type: ApplicationFiled: April 26, 2012Publication date: October 31, 2013Applicant: VETCO GRAY INC.Inventors: Sibu Varghese, Christopher Loftin, Edward Rositas, Arjin Nolan, Jesus Aldeguer
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Publication number: 20130264117Abstract: A template for use in positioning subsea wellbores that has a drop away funnel that extends laterally from the template. The drop away funnel is used to locate a piling adjacent the wellbores and is selectively detached from the template after installing the piling. A tang and clevis type assembly mounts the drop away funnel to the template, where the tang and clevis are coupled together with a main stud. The main stud is oriented substantially parallel with an axis of the drop away funnel; so that when the stud is removed, the drop away funnel can decouple from the template and slide axially downward along the piling.Type: ApplicationFiled: April 10, 2012Publication date: October 10, 2013Applicant: Vetco Gray IncInventors: Sibu Varghese, Clint Trimble, Christopher Loftin, Jeffrey Allen Raynal
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Publication number: 20120312542Abstract: A subsea wellhead assembly includes a housing with a bore. A hanger is lowered into the housing, the hanger having at least one downward facing load shoulder. An expandable load ring is carried on the hanger. When casing weight is applied to the hanger, the weight energizes the load ring, causing it to expand and thereby increase the contact area between a load shoulder on the load ring and a load shoulder on the housing. The shoulders create a path for the load to be transferred to the housing. The increase in contact area increases the load carrying capacity of the hanger. The load ring expansion is limited to elastic expansion to allow it to return to a retracted position when the casing weight is removed.Type: ApplicationFiled: June 8, 2011Publication date: December 13, 2012Applicant: VETCO GRAY INC.Inventors: Sibu Varghese, Chad Yates
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Publication number: 20120103597Abstract: An outer wellhead member has a bore with a first profile portion and an annular recess. A tubular inner wellhead member with a centralizer/overpull ring is lowered into the outer wellhead member. The centralizer/overpull ring is biased to expand outward to engage the bore of the outer wellhead member to center the inner wellhead member within the bore as the inner wellhead member is lowered through the bore. The recess of the outer wellhead member is adapted to receive the centralizer/overpull ring and oppose axial movement of the centralizer/overpull ring to enable an upward test pull of the inner wellhead member.Type: ApplicationFiled: October 27, 2010Publication date: May 3, 2012Applicant: Vetco Gray Inc.Inventors: Sibu Varghese, Ryan Herbel, Dien Nguyen, Javier Garcia