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).

  • Patent number: 10945569
    Abstract: 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: Grant
    Filed: May 21, 2019
    Date of Patent: March 16, 2021
    Inventor: Sibu Varghese
  • Patent number: 10928098
    Abstract: 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: Grant
    Filed: May 21, 2019
    Date of Patent: February 23, 2021
    Inventor: Sibu Varghese
  • Patent number: 10214987
    Abstract: 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: Grant
    Filed: August 31, 2016
    Date of Patent: February 26, 2019
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Sibu Varghese, Russell Kurtis Fleetwood, Sathish Kalaimani
  • Patent number: 10087688
    Abstract: 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: Grant
    Filed: February 12, 2015
    Date of Patent: October 2, 2018
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Sibu Varghese, Ganesh K. Nanaware, Andy Tom
  • Publication number: 20180208991
    Abstract: 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: Application
    Filed: July 1, 2016
    Publication date: July 26, 2018
    Inventors: Rebecca C. FITZGERALD, Sibu VARGHESE, Richard NEWTON, Lorenz WERNISCH
  • Publication number: 20180058172
    Abstract: 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: Application
    Filed: August 31, 2016
    Publication date: March 1, 2018
    Applicant: Baker Hughes Incorporated
    Inventors: Sibu Varghese, Russell Kurtis Fleetwood, Sathish Kalaimani
  • Patent number: 9816329
    Abstract: 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: Grant
    Filed: August 12, 2014
    Date of Patent: November 14, 2017
    Assignee: BAKER HUGES, A GE COMPANY, LLC
    Inventors: Sibu Varghese, Matthew Krueger
  • Publication number: 20160237761
    Abstract: 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: Application
    Filed: February 12, 2015
    Publication date: August 18, 2016
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Sibu Varghese, Ganesh K. Nanaware, Andy Tom
  • Publication number: 20160047502
    Abstract: 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: Application
    Filed: August 12, 2014
    Publication date: February 18, 2016
    Applicant: Baker Hughes Incorporated
    Inventors: Sibu Varghese, Matthew Krueger
  • Patent number: 9163729
    Abstract: 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: Grant
    Filed: January 24, 2013
    Date of Patent: October 20, 2015
    Assignee: Baker Hughes Incorporated
    Inventor: Sibu Varghese
  • Patent number: 8939213
    Abstract: 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: Grant
    Filed: April 26, 2012
    Date of Patent: January 27, 2015
    Assignee: Vetco Gray Inc.
    Inventors: Sibu Varghese, Christopher Loftin, Edward Rositas, Arjin Nolan, Jesus Aldeguer
  • Patent number: 8905156
    Abstract: 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: Grant
    Filed: April 10, 2012
    Date of Patent: December 9, 2014
    Assignee: Vetco Gray Inc.
    Inventors: Sibu Varghese, Clint Trimble, Christopher Loftin, Jeffrey Allen Raynal
  • Publication number: 20140346739
    Abstract: 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: Application
    Filed: May 24, 2013
    Publication date: November 27, 2014
    Inventors: Sibu Varghese, Goang-Ding Shyu
  • Patent number: 8833461
    Abstract: 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: Grant
    Filed: June 8, 2011
    Date of Patent: September 16, 2014
    Assignee: Vetco Gray Inc.
    Inventors: Sibu Varghese, Chad Yates
  • Publication number: 20140203512
    Abstract: 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: Application
    Filed: January 24, 2013
    Publication date: July 24, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Sibu Varghese
  • Patent number: 8689888
    Abstract: 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: Grant
    Filed: October 27, 2010
    Date of Patent: April 8, 2014
    Assignee: Vetco Gray Inc.
    Inventors: Sibu Varghese, Ryan Herbel, Dien Nguyen, Javier Garcia
  • Publication number: 20130284444
    Abstract: 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: Application
    Filed: April 26, 2012
    Publication date: October 31, 2013
    Applicant: VETCO GRAY INC.
    Inventors: Sibu Varghese, Christopher Loftin, Edward Rositas, Arjin Nolan, Jesus Aldeguer
  • Publication number: 20130264117
    Abstract: 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: Application
    Filed: April 10, 2012
    Publication date: October 10, 2013
    Applicant: Vetco Gray Inc
    Inventors: Sibu Varghese, Clint Trimble, Christopher Loftin, Jeffrey Allen Raynal
  • Publication number: 20120312542
    Abstract: 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: Application
    Filed: June 8, 2011
    Publication date: December 13, 2012
    Applicant: VETCO GRAY INC.
    Inventors: Sibu Varghese, Chad Yates
  • Publication number: 20120103597
    Abstract: 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: Application
    Filed: October 27, 2010
    Publication date: May 3, 2012
    Applicant: Vetco Gray Inc.
    Inventors: Sibu Varghese, Ryan Herbel, Dien Nguyen, Javier Garcia