Patents by Inventor Prabjit Singh

Prabjit Singh 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: 8919388
    Abstract: Pre-treated water cooling hoses and a method for implementing pretreatment of water cooling hoses for increased reliability are provided. Pretreatment of the water cooling hoses includes attaching the water cooling hose to a water cooling system, filling the water cooling system with a high concentration corrosion inhibitor solution, and running the system for an extended time to saturate the attached hose with the high concentration corrosion inhibitor.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: December 30, 2014
    Assignee: International Business Machines Corporation
    Inventors: Dylan J. Boday, Joseph Kuczynski, Prabjit Singh, Jason T. Wertz, Jing Zhang
  • Patent number: 8867209
    Abstract: Cooling apparatuses, cooled electronic modules and methods of fabrication are provided for fluid immersion-cooling of an electronic component(s). The cooled electronic module includes a substrate supporting the electronic component(s), and the cooling apparatus couples to the substrate, and includes a housing at least partially surrounding and forming a compartment about the electronic component(s). Additionally, the cooling apparatus includes a fluid and a deionization structure disposed within the compartment. The electronic component is at least partially immersed within the fluid, and the fluid is a water-based fluid. The deionization structure includes deionizing material, which ensures deionization of the fluid within the compartment. The deionization structure facilitates boiling heat transfer from the electronic component(s) to a condenser structure disposed in the compartment.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: October 21, 2014
    Assignee: International Business Machines Corporation
    Inventors: Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madusudan K. Iyengar, Robert E. Simons, Prabjit Singh
  • Patent number: 8857057
    Abstract: An apparatus for facilitating servicing of a liquid-cooled electronics rack is provided. The apparatus includes a coolant tank, a coolant pump in fluid communication with the coolant tank, multiple parallel-connected coolant supply lines coupling the coolant pump to a coolant supply port of the apparatus, and a coolant return port and a coolant return line coupled between the coolant return port and the coolant tank. Each coolant supply line includes a coolant control valve for selectively controlling flow of coolant therethrough pumped by the coolant pump from the coolant tank. At least one coolant supply line includes at least one filter, and one coolant supply line is a bypass line with no filter. When operational, the apparatus facilitates filling of coolant into a cooling system of a liquid-cooled electronics rack by allowing for selective filtering of coolant inserted into the cooling system.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: October 14, 2014
    Assignee: International Business Machines Corporation
    Inventors: Levi A. Campbell, Richard C. Chu, Michael J. Ellsworth, Jr., Madusudan K. Iyengar, Robert E. Simons, Prabjit Singh
  • Patent number: 8823535
    Abstract: Apparatus and method for directly detecting the atmospheric conditions leading to creep corrosion of printed circuit boards (PCBs) well before the PCBs in the computers start suffering from creep corrosion. The embodiment indicates the propensity of the air towards creep corrosion on PCBs. Additionally, to avoid the false reading due to condensed moisture, condensed moisture may be avoided by using a heater attached to the creep corrosion monitor that keeps the creep corrosion monitor above the dew point temperature.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: September 2, 2014
    Assignee: International Business Machines Corporation
    Inventors: Levente Klein, Prabjit Singh, Jing Zhang
  • Publication number: 20140230524
    Abstract: A corrosion sensor includes a plurality of metal strips having different thicknesses. A first metal strip with the least thickness is first employed to provide sensitive corrosion detection. After an exposed portion of the first metal strip is consumed, a second metal strip having a second least thickness can be employed to provide continued sensitive corrosion detection employing a remaining un-corroded portion of the second metal strip. The plurality of metal strips can be sequentially employed as exposed portions of thinner metal strips become unusable through complete corrosion and un-corroded exposed portions of thicker metal strips become thin enough to provide sensitive corrosion detection.
    Type: Application
    Filed: April 30, 2014
    Publication date: August 21, 2014
    Applicant: International Business Machines Corporation
    Inventors: S. Jay Chey, Hendrik F. Hamann, Levente I. Klein, Michael A. Schappert, Prabjit Singh
  • Patent number: 8806749
    Abstract: Cooling apparatuses, cooled electronic modules and methods of fabrication are provided for fluid immersion-cooling of an electronic component(s). The method includes, for instance: securing a housing about an electronic component to be cooled, the housing at least partially surrounding and forming a compartment about the electronic component to be cooled; disposing a fluid within the compartment, wherein the electronic component to be cooled is at least partially immersed within the fluid, and wherein the fluid comprises water; and providing a deionizing structure within the compartment, the deionizing structure comprising deionizing material, the deionizing material ensuring deionization of the fluid within the compartment, wherein the deionizing structure is configured to accommodate boiling of the fluid within the compartment.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: August 19, 2014
    Assignee: International Business Machines Corporation
    Inventors: Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Madhusudan K. Iyengar, Robert E. Simons, Prabjit Singh
  • Publication number: 20140202573
    Abstract: Pre-treated water cooling hoses and a method for implementing pretreatment of water cooling hoses for increased reliability are provided. Pretreatment of the water cooling hoses includes attaching the water cooling hose to a water cooling system, filling the water cooling system with a high concentration corrosion inhibitor solution, and running the system for an extended time to saturate the attached hose with the high concentration corrosion inhibitor.
    Type: Application
    Filed: January 18, 2013
    Publication date: July 24, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Dylan J. Boday, Joseph Kuczynski, Prabjit Singh, Jason T. Wertz, Jing Zhang
  • Publication number: 20140152449
    Abstract: Apparatus and method for directly detecting the atmospheric conditions leading to creep corrosion of printed circuit boards (PCBs) well before the PCBs in the computers start suffering from creep corrosion. The embodiment indicates the propensity of the air towards creep corrosion on PCBs. Additionally, to avoid the false reading due to condensed moisture, condensed moisture may be avoided by using a heater attached to the creep corrosion monitor that keeps the creep corrosion monitor above the dew point temperature.
    Type: Application
    Filed: December 5, 2012
    Publication date: June 5, 2014
    Applicant: International Business Machines Corporation
    Inventors: Levente Klein, Prabjit Singh, Jing Zhang
  • Patent number: 8743545
    Abstract: A heat sink and method of fabrication are provided for removing heat from an electronic component(s). The heat sink includes a heat sink base and frame. The base has a first coefficient of thermal expansion (CTE), and includes a base surface configured to couple to the electronic component to facilitate removal of heat. The frame has a second CTE, and is configured to constrain the base surface in opposing relation to the electronic component, wherein the first CTE is greater than the second CTE. At least one of the heat sink base or frame is configured so that heating of the heat sink base results in a compressive force at the base surface of the heat sink base towards the electronic component that facilitates heat transfer from the electronic component. A thermal interface material is disposed between the base surface and the electronic component.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: June 3, 2014
    Assignee: International Business Machines Corporation
    Inventors: Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar, Robert E. Simons, Prabjit Singh
  • Patent number: 8723534
    Abstract: A corrosion sensor includes a plurality of metal strips having different thicknesses. A first metal strip with the least thickness is first employed to provide sensitive corrosion detection. After an exposed portion of the first metal strip is consumed, a second metal strip having a second least thickness can be employed to provide continued sensitive corrosion detection employing a remaining un-corroded portion of the second metal strip. The plurality of metal strips can be sequentially employed as exposed portions of thinner metal strips become unusable through complete corrosion and un-corroded exposed portions of thicker metal strips become thin enough to provide sensitive corrosion detection.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: May 13, 2014
    Assignee: International Business Machines Corporation
    Inventors: S. Jay Chey, Hendrik F. Hamann, Levente I. Klein, Michael A. Schappert, Prabjit Singh
  • Patent number: 8720063
    Abstract: A heat sink and method of fabrication are provided for removing heat from an electronic component(s). The heat sink includes a heat sink base and frame. The base has a first coefficient of thermal expansion (CTE), and includes a base surface configured to couple to the electronic component to facilitate removal of heat. The frame has a second CTE, and is configured to constrain the base surface in opposing relation to the electronic component, wherein the first CTE is greater than the second CTE. At least one of the heat sink base or frame is configured so that heating of the heat sink base results in a compressive force at the base surface of the heat sink base towards the electronic component that facilitates heat transfer from the electronic component. A thermal interface material is disposed between the base surface and the electronic component.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: May 13, 2014
    Assignee: International Business Machines Corporation
    Inventors: Levi A. Campbell, Richard C. Chu, Milnes P. David, Michael J. Ellsworth, Jr., Madnusudan K. Iyengar, Robert E. Simons, Prabjit Singh
  • Publication number: 20140111229
    Abstract: Corrosion sensor apparatus for detection of contamination affecting metal based components and devices. For example, an apparatus includes: a set of corrosion sensor elements, wherein a width of a first corrosion sensor element is different than a width of a second corrosion sensor element, wherein each corrosion sensor element is susceptible to corrosion caused by an operating environment of the corrosion sensor elements; and a set of reference elements wherein a width of a first reference sensor element is substantially equal to the width of the first corrosion sensor element and a width of a second reference sensor element is substantially equal to the width of the second corrosion sensor element, wherein each reference sensor element is not substantially susceptible to corrosion caused by the operating environment of the corrosion sensor elements.
    Type: Application
    Filed: January 2, 2014
    Publication date: April 24, 2014
    Applicant: International Business Machines Corporation
    Inventors: Hendrik F. Hamann, Levente I. Klein, Michael A. Schappert, Prabjit Singh
  • Publication number: 20140102672
    Abstract: An automated multi-fluid cooling system and method are provided for cooling an electronic component(s). The cooling system includes a coolant loop, a coolant tank, multiple valves, and a controller. The coolant loop is at least partially exposed to outdoor ambient air temperature(s) during normal operation, and the coolant tank includes first and second reservoirs containing first and second fluids, respectively. The first fluid freezes at a lower temperature than the second, the second fluid has superior cooling properties compared with the first, and the two fluids are soluble. The multiple valves are controllable to selectively couple the first or second fluid into the coolant in the coolant loop, wherein the coolant includes at least the second fluid. The controller automatically controls the valves to vary first fluid concentration level in the coolant loop based on historical, current, or anticipated outdoor air ambient temperature(s) for a time of year.
    Type: Application
    Filed: October 11, 2012
    Publication date: April 17, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Levi A. CAMPBELL, Richard C. CHU, Milnes P. DAVID, Michael J. ELLSWORTH, Jr., Madhusudan K. IYENGAR, Robert E. SIMONS, Prabjit SINGH, Jing ZHANG
  • Publication number: 20140102669
    Abstract: An automated multi-fluid cooling method is provided for cooling an electronic component(s). The method includes obtaining a coolant loop, and providing a coolant tank, multiple valves, and a controller. The coolant loop is at least partially exposed to outdoor ambient air temperature(s) during normal operation, and the coolant tank includes first and second reservoirs containing first and second fluids, respectively. The first fluid freezes at a lower temperature than the second, the second fluid has superior cooling properties compared with the first, and the two fluids are soluble. The multiple valves are controllable to selectively couple the first or second fluid into the coolant in the coolant loop, wherein the coolant includes at least the second fluid. The controller automatically controls the valves to vary first fluid concentration level in the coolant loop based on historical, current, or anticipated outdoor air ambient temperature(s) for a time of year.
    Type: Application
    Filed: February 4, 2013
    Publication date: April 17, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Levi A. CAMPBELL, Richard C. CHU, Milnes P. DAVID, Michael J. ELLSWORTH, JR., Madhusudan K. IYENGAR, Robert E. SIMONS, Prabjit SINGH, Jing ZHANG
  • Patent number: 8672688
    Abstract: An electrical interconnect is provided for use within, for example, a land grid array (LGA) interposer such as a module-to-board connector. The electrical interconnect includes an electrically-conductive, compressible conductor which has a first conductor end portion and a second conductor end portion. The first and second conductor end portions physically contact in slidable relation each other with compression of the compressible conductor to facilitate inhibiting rotation of the compressible conductor. In one embodiment, the first end portion includes at least one first leg and the second end portion includes at least two second legs, and the at least one first leg and at least two second legs are interdigitated. Further, in one embodiment, the first end portion and the second end portion are each in slidable contact with an inner-facing surface of the compressible conductor.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: March 18, 2014
    Assignee: International Business Machines Corporation
    Inventors: Robert F. Florence, Jr., Emanuele F. Lopergolo, Prabjit Singh
  • Patent number: 8662931
    Abstract: A method for using a connector with terminals for connecting to a circuit card. The connector includes a socket having a casing with an aperture for receiving the circuit card therein and electrically conductive terminals. The terminals include an elongated portion and a substantially L-shaped portion joined together by a U-shaped portion. The elongated portion has a proximal end and a distal end, and includes a support section and a bending section between the proximal end and the distal end. The U-shaped portion is disposed at the distal end of the elongated portion. The terminal continues from the U-shaped portion to approximately halfway towards the proximal end of the elongated portion and turns away from the elongated portion thereby forming the substantially L-shaped portion. The L-shaped portion ends in a lip section curving towards the proximal end of the elongated portion.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: March 4, 2014
    Assignee: International Business Machines Corporation
    Inventors: H. John Healey, Emanuele F. Lopergolo, Prabjit Singh
  • Publication number: 20140047702
    Abstract: A heat sink and method of fabrication are provided for removing heat from an electronic component(s). The heat sink includes a heat sink base and frame. The base has a first coefficient of thermal expansion (CTE), and includes a base surface configured to couple to the electronic component to facilitate removal of heat. The frame has a second CTE, and is configured to constrain the base surface in opposing relation to the electronic component, wherein the first CTE is greater than the second CTE. At least one of the heat sink base or frame is configured so that heating of the heat sink base results in a compressive force at the base surface of the heat sink base towards the electronic component that facilitates heat transfer from the electronic component. A thermal interface material is disposed between the base surface and the electronic component.
    Type: Application
    Filed: October 25, 2013
    Publication date: February 20, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Levi A. CAMPBELL, Richard C. CHU, Milnes P. DAVID, Michael J. ELLSWORTH, JR., Madhusudan K. IYENGAR, Robert E. SIMONS, Prabjit SINGH
  • Patent number: 8643390
    Abstract: Corrosion sensor apparatus for detection of contamination affecting metal based components and devices. For example, an apparatus includes: a set of corrosion sensor elements, wherein a width of a first corrosion sensor element is different than a width of a second corrosion sensor element, wherein each corrosion sensor element is susceptible to corrosion caused by an operating environment of the corrosion sensor elements; and a set of reference elements wherein a width of a first reference sensor element is substantially equal to the width of the first corrosion sensor element and a width of a second reference sensor element is substantially equal to the width of the second corrosion sensor element, wherein each reference sensor element is not substantially susceptible to corrosion caused by the operating environment of the corrosion sensor elements.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: February 4, 2014
    Assignee: International Business Machines Corporation
    Inventors: Hendrik F. Hamann, Levente I. Klein, Michael Alan Schappert, Prabjit Singh
  • Patent number: 8591625
    Abstract: An apparatus, system, and method for preventing server contamination. The system includes a server rack and a contamination filter secured to the server rack. The contamination filter may be configured to filter particulate substances and/or chemical substances from air. The system may include a reaction coupon configured to indicate the presence of particulate substances and/or chemical substances in the air.
    Type: Grant
    Filed: November 13, 2011
    Date of Patent: November 26, 2013
    Assignee: International Business Machines Corporation
    Inventors: Madhusudan K. Iyengar, Roger R. Schmidt, Prabjit Singh
  • Publication number: 20130180271
    Abstract: An apparatus is provided, which includes a dust detector, a voltage source, and a controller. The dust detector includes two opposing surfaces and a conductive dust sensor. The two opposing surfaces are disposed in spaced, opposing relation to allow for the passage of airflow between the surfaces, and the conductive dust sensor is disposed at a surface of the two opposing surfaces. The voltage source is configured and controlled to establish an electrostatic field at least partially between the two opposing surfaces to facilitate directing conductive particles in the airflow passing between the two opposing surfaces towards the dust sensor. The controller monitors for a leakage current within the conductive dust sensor and determines whether the leakage current exceeds a predetermined trigger level indicative of the presence of conductive dust, and if so, automatically indicates a conductive dust warning.
    Type: Application
    Filed: January 17, 2012
    Publication date: July 18, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Joseph KUCZYNSKI, Melissa K. MILLER, Prabjit SINGH, Heidi D. WILLIAMS, Jing ZHANG