Patents by Inventor Chris A. Calhoun

Chris A. Calhoun 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).

  • Method of attaching a transmission oil cooler to an aluminum tank
    Patent number: 7260893
    Abstract: A secondary heat exchanger subassembly, such as a transmission oil cooler, is disposed in a metal tank of a radiator and has a pair of metal fluid fittings. Either a connector ring engages a fitting extending through the opening in the tank or a connector nut extends into the opening to threadedly engage the fitting whereby the metal fittings are held to the metal tank and inserted into a furnace for being brazed into sealed relationship with the metal tank.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: August 28, 2007
    Assignee: Delphi Technologies, Inc.
    Inventors: Chris A. Calhoun, Terry Joseph Hunt, David A. Southwick, Karl Paul Kroetsch, Krzysztof Wawrocki, Khalid El Moutamid, Yusuke Matsunaga, Laurent Art
  • Heat exchanger with tank utilizing integral positioning guides
    Patent number: 7147040
    Abstract: A heat exchanger is disclosed. A plurality of guides are integrally formed with the walls of a header tank and are used to position an oil cooler inside the tank to align a pair of fittings carried by the cooler with a pair of spaced openings in the tank.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: December 12, 2006
    Assignee: Delphi Technologies, Inc.
    Inventors: Chris A. Calhoun, Terry Joseph Hunt, David A. Southwick, Karl Paul Kroetsch, Krzysztof Wawrocki, Khalid El Moutamid, Yusuke Matsunaga, Laurent Art
  • One piece integral reinforcement with angled end caps to facilitate assembly to core
    Patent number: 7059050
    Abstract: A metal tank cap is integral with a reinforcing member via a narrow connection and is flared outwardly at the narrow connection portion to be over an open end of the tank simultaneously with moving the metal tubes of the core into the tank. By unbending the connection portion, the respective tank caps are deflared into the open ends of the respective tanks and the entire assembly is placed in a furnace and brazed together.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: June 13, 2006
    Assignee: Delphi Technologies, Inc.
    Inventors: Chris A. Calhoun, Terry Joseph Hunt, David A. Southwick, Karl Paul Kroetsch, Krzysztof Wawrocki, Khalid El Moutamid, Yusuke Matsunaga, Laurent Art
  • Header tank with integral mounting flange
    Patent number: 7007743
    Abstract: A one-piece header tank includes side edges that are overlapped and brazed together to form a joint positioned within the interior of the tank. The tank also includes an integrally formed mounting flange that may be fabricated without jeopardizing the leak integrity of the tank.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: March 7, 2006
    Assignee: Delphi Technologies, Inc.
    Inventors: Chris A. Calhoun, Terry Joseph Hunt, David A. Southwick, Karl Paul Kroetsch, Krzysztof Wawrocki, Khalid El Moutamid, Yusuke Matsunaga, Laurent Art
  • Fluid flow heat exchanger with reduced pressure drop
    Patent number: 6116335
    Abstract: An automotive radiator reduces coolant pressure drop with a novel flow turning structure integrally molded into the inlet header tank, opposite the inlet pipe. A pair of compound curved surfaces, sloping toward opposite directions from a crest edge, split and divide the flow leaving the inlet pipe and send it proportionately toward opposite ends of the tank, smoothing out the flow transition and reducing the attendant pressure loss. The curved surfaces also have a component of curvature toward the flow tubes, as well as being sloped toward opposite ends of the tank.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: September 12, 2000
    Assignee: Delphi Technologies, Inc.
    Inventors: Henry Earl Beamer, Chris A. Calhoun