Patents by Inventor Raymond J. Kilmer

Raymond J. Kilmer 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).

  • Micro-textured heat transfer surfaces
    Patent number: 6644388
    Abstract: A wrought aluminum sheet product having a textured surface for improved heat transfer properties. A plurality of textured features having dimensions of about 1-50 microns is roll textured onto one or both sides of the sheet. The aluminum sheet may be used as the fins or tubing of a heat exchanger.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: November 11, 2003
    Assignee: Alcoa Inc.
    Inventors: Raymond J. Kilmer, John B. Eye, Stephen F. Baumann, Michael P. Danz
  • Simultaneous multi-alloy casting
    Publication number: 20030079856
    Abstract: A method of casting a multi-layered metal ingot including the steps of delivering a metallic divider member into a direct chill mold, pouring a first molten metal into the mold on one side of the divider member, and pouring a second molten metal into the mold on the other side of the divider member, and allowing the first molten metal and the second molten metal solidify to form a metal ingot which includes the divider metal layer disposed there between.
    Type: Application
    Filed: October 23, 2001
    Publication date: May 1, 2003
    Inventors: Raymond J. Kilmer, James L. Kirby
  • Multi-layer, heat treatable brazing sheet with aluminum interlayer
    Patent number: 6555251
    Abstract: A four layer composite including a first interliner positioned between a 4xxx series braze clad and a core alloy and a second interliner positioned on the opposite side of the core alloy from the first interliner. At least one of the first and second interliners has higher amounts of Si than that of the core alloy adjacent thereto. The higher Si content interliner preferably contains about 0.02-1.1 wt. % Si.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: April 29, 2003
    Assignee: Alcoa Inc.
    Inventor: Raymond J. Kilmer
  • Multi-layer, heat treatable brazing sheet with aluminum interlayer
    Publication number: 20020142185
    Abstract: A four layer composite including a first interliner positioned between a 4xxx series braze clad and a core alloy and a second interliner positioned on the opposite side of the core alloy from the first interliner. At least one of the first and second interliners has higher amounts of Si than that of the core alloy adjacent thereto. The higher Si content interliner preferably contains about 0.02-1.1 wt. % Si.
    Type: Application
    Filed: December 19, 2001
    Publication date: October 3, 2002
    Inventor: Raymond J. Kilmer
  • Method of depositing flux or flux and metal onto a metal brazing substrate
    Patent number: 6344237
    Abstract: The present invention is directed to a means for the surface preparation of a metal or metal alloy substrate. In the process of the present invention, a stream of a mixture of flux particles and metal particles is hurled at the substrate at velocities effective for flux adhesion to the surface. The velocities of the particle stream is adjusted so that the flux particles adhere to the surface and the metal particles bounce off the surface. At higher temperatures and velocities, the metal particles are co-deposited with the flux.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: February 5, 2002
    Assignee: Alcoa Inc.
    Inventors: Raymond J. Kilmer, John B. Eye
  • Method of depositing flux or flux and metal onto a metal brazing substrate
    Patent number: 6317913
    Abstract: The present invention is directed to a means for the surface preparation of a metal or metal alloy substrate. In the process of the present invention, a stream of a mixture of flux particles and metal particles is hurled at the substrate at velocities effective for flux adhesion to the surface. The velocities of the particle stream is adjusted so that the flux particles adhere to the surface and the metal particles bounce off the surface. At higher temperatures and velocities, the metal particles are co-deposited with the flux.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: November 20, 2001
    Assignee: Alcoa Inc.
    Inventors: Raymond J. Kilmer, John B. Eye