Patents by Inventor Maurice Francis Holahan

Maurice Francis Holahan 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: 8910706
    Abstract: An apparatus for cooling a heat-generating component is disclosed. The apparatus includes a cooling chamber containing a liquid metal. The cooling chamber has a heat-conducting wall thermally coupled to the heat-generating component. A plurality of extendable tubes making up an array of cooling pin fins is attached to the cooling chamber. Each of the extendable tubes has a port end that opens into the cooling chamber and a sealed end that projects away from the cooling chamber. Moreover, each of the extendable tubes has an extended position when filled with liquid metal from the cooling chamber and a retracted position when emptied of the liquid metal. A pump system is included for urging the liquid metal from the cooling chamber into the plurality of extendable tubes.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: December 16, 2014
    Assignee: International Business Machines Corporation
    Inventors: Don Alan Gilliland, Maurice Francis Holahan, Cary Michael Huettner
  • Publication number: 20110310566
    Abstract: A thermal flow material-free thermally conductive interface between a mounted integrated circuit device and a heat sink that comprises a mounted integrated circuit device, a heat sink vertically disposed over the device, a vertically compressible thermally conductive member unattachably disposed between the device and the heat sink, and an unattached frame member horizontally enclosing the compressible member.
    Type: Application
    Filed: June 21, 2010
    Publication date: December 22, 2011
    Applicant: International Business Machines Corporation
    Inventors: Maurice Francis Holahan, Eric Vance Kline, Paul N. Krystek, Michael Robert Rasmussen, Arvind Kumar Sinha, Stephen M. Zins
  • Publication number: 20100193175
    Abstract: An apparatus for cooling a heat-generating component is disclosed. The apparatus includes a cooling chamber containing a liquid metal. The cooling chamber has a heat-conducting wall thermally coupled to the heat-generating component. A plurality of extendable tubes making up an array of cooling pin fins is attached to the cooling chamber. Each of the extendable tubes has a port end that opens into the cooling chamber and a sealed end that projects away from the cooling chamber. Moreover, each of the extendable tubes has an extended position when filled with liquid metal from the cooling chamber and a retracted position when emptied of the liquid metal. A pump system is included for urging the liquid metal from the cooling chamber into the plurality of extendable tubes.
    Type: Application
    Filed: February 5, 2009
    Publication date: August 5, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Don Alan Gilliland, Maurice Francis Holahan, Cary Michael Huettner
  • Patent number: 7684196
    Abstract: An apparatus for enhancing the cooling of a dual in-line memory module (DIMM) includes a planar body having opposing surfaces, a top edge, a bottom edge, and opposing ends. An engagement flange is connected to the bottom edge of the body. A first clip leg is connected to the engagement flange. The first clip leg includes a tab arranged to engage one mounting latch recess of the DIMM. A second clip leg connected to the engagement flange. The second clip leg includes a tab arranged to engage the other mounting latch recess of the DIMM.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: March 23, 2010
    Assignee: International Business Machines Corporation
    Inventors: Eric Alan Eckberg, Maurice Francis Holahan
  • Publication number: 20090284928
    Abstract: An apparatus for enhancing the cooling of a dual in-line memory module (DIMM) includes a planar body having opposing surfaces, a top edge, a bottom edge, and opposing ends. An engagement flange is connected to the bottom edge of the body. A first clip leg is connected to the engagement flange. The first clip leg includes a tab arranged to engage one mounting latch recess of the DIMM. A second clip leg connected to the engagement flange. The second clip leg includes a tab arranged to engage the other mounting latch recess of the DIMM.
    Type: Application
    Filed: May 13, 2008
    Publication date: November 19, 2009
    Inventors: Eric Alan Eckberg, Maurice Francis Holahan
  • Publication number: 20090213541
    Abstract: A cooling plate assembly for transferring heat from electronic components mounted on a circuit board includes both fixed and articulated interfaces. A fixed-gap coldplate is positioned over and in thermal contact with (e.g., through an elastomerically compressive pad thermal interface material) electronic components mounted on the circuit board's top surface. An articulated coldplate is positioned over and in thermal contact with at least one electronic component mounted on the circuit board's top surface. In the preferred embodiments, the articulated coldplate is spring-loaded against one or more high power processor components having power dissipation greater than that of the electronic components under the fixed-gap cooling plate. Thermal dissipation channels in the coldplates are interconnected by flexible tubing, such as copper tubing with a free-expansion loop.
    Type: Application
    Filed: February 27, 2008
    Publication date: August 27, 2009
    Inventors: Matthew Allen Butterbaugh, Maurice Francis Holahan, Terry L. Lyon, David Roy Motschman
  • Publication number: 20090037152
    Abstract: A method and computer program product is presented to map noise levels onto the hydraulic operating plane. Application of this model has the potential to show which fan is quieter, where, and by how much. It is shown how the technique can be applied to a diverse set of comparisons including speed, diameter, type, model, and multiple fans in combination.
    Type: Application
    Filed: July 31, 2007
    Publication date: February 5, 2009
    Inventors: Maurice Francis Holahan, Michael Desmond O'Connell
  • Patent number: 7345881
    Abstract: A load frame has an open region exposing a surface of an electronic component. A heat sink is disposed on the load frame and has a surface in thermal contact with the surface of the electronic component. A non-influencing fastener is disposed within a bore in the heat sink and threaded into the load frame for securing the heat sink to the load frame. The non-influencing fastener includes a screw with a head; a tapered ring disposed below the head of the screw and having a tapered lower peripheral surface; a sealing ring engaging the tapered lower peripheral surface of the tapered ring; and a load washer disposed between the sealing ring and the load frame. Compression of the rings by turning of the screw into the load frame causes the sealing ring to expand against the bore of the heatsink. Preferably, the sealing ring has a curved outer surface.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: March 18, 2008
    Assignee: International Business Machines Corporation
    Inventors: John Lee Colbert, John Saunders Corbin, Jr., Eric Alan Eckberg, James Dorance Gerken, Roger Duane Hamilton, Maurice Francis Holahan
  • Patent number: 6974489
    Abstract: There is disclosed an apparatus and method for protecting electronic devices against excessive heat build-up and particulate infiltration while implementing EMC shielding.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: December 13, 2005
    Assignee: International Business Machines Corporation
    Inventors: Louis Edward Behrens, Matthew Allen Butterbaugh, Don A. Gilliland, Maurice Francis Holahan, Paul Daniel Pederson, Jr.
  • Patent number: 6411102
    Abstract: The design of an electro-magnetic radiation suppression shield and cooling housing for a computer, server or other electronic device having a computer processor may be greatly enhanced and expedited by a test apparatus that permits the placement of electro-magnetic radiation suppression plates at differing locations, spacings and alignments, which allows a variance in positioning the electro-magnetic radiation source. The test apparatus not only has an air flow cooling opening in which an electro-magnetic radiation suppression panel forms cooling air flow holes but also a fixture for disposing a second similar electromagnetic radiation suppression panel at a distance from the first electro-magnetic radiation suppression panel. Each of the panels may be substituted to test various designs.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: June 25, 2002
    Assignee: International Business Machines Corporation
    Inventors: Don Alan Gilliland, Maurice Francis Holahan, James Larry Peacock
  • Patent number: 6174232
    Abstract: A fan check valve is formed from plastic film having an outer edge and a central region. The valve also has a number of slits that define flaps in the film. The flaps are symmetrically arrayed in a spiral-like pattern between the central region and the outer edge. The valve mounts to the outer surface of a tube axial fan. Under normal operating conditions, the fan moves a helical flow of air in a generally axial direction toward through the valve. The flaps are blown open and align with the oncoming flow at low angles of attack to minimize dynamic losses. The flaps are in the closed position and lie flush on the outer surface of the exhaust plate mounted on the fan at all other times to prevent airflow back through the fan in the opposite direction once the fan has failed.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: January 16, 2001
    Assignee: International Business Machines Corporation
    Inventors: Jason Thomas Stoll, Maurice Francis Holahan, Dale Lidberg