Patents by Inventor David C. Wolfe

David C. Wolfe 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 and apparatus for production of enrobed catalyst pastilles or flakes
    Patent number: 7179766
    Abstract: The present development relates to a process for enrobing active catalytic materials with a protective coating to form pastilles, and to an apparatus for making the pastilles. The process comprises mixing an active catalyst powder with a hydrocarbon material in a low-shear jacketed blender at a temperature slightly above the congealing point of the hydrocarbon, and then making pastilles from the catalyst/hydrocarbon mixture while cooling the mixture to temperature below the congealing point of the hydrocarbon.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: February 20, 2007
    Assignee: Sud-Chemie Inc.
    Inventors: David C. Wolfe, Paul D. Schneider, Robert O'Brien, X. D. Hu, Jeff Braden, Patrick McLaughlin, Joe Stack
  • Method and apparatus for the production of enrobed catalyst pastilles
    Patent number: 6979663
    Abstract: The present development relates to a process for enrobing active catalytic materials with a protective coating to form pastilles, and to an apparatus for making the pastilles. The process comprises mixing an active catalyst powder with a hydrocarbon material in a low-shear jacketed blender at a temperature slightly above the congealing point of the hydrocarbon, and then making pastilles from the catalyst/hydrocarbon mixture while cooling the mixture to temperature below the congealing point of the hydrocarbon.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: December 27, 2005
    Assignee: Süd-Chemie Inc.
    Inventors: David C. Wolfe, Paul D. Schneider, Robert O'Brien, X. D. Hu, Jeff Braden, Patrick McLaughlin, Joe Stack
  • Method and apparatus for the production of enrobed catalyst pastilles or flakes
    Publication number: 20040157731
    Abstract: The present development relates to a process for enrobing active catalytic materials with a protective coating to form pastilles, and to an apparatus for making the pastilles. The process comprises mixing an active catalyst powder with a hydrocarbon material in a low-shear jacketed blender at a temperature slightly above the congealing point of the hydrocarbon, and then making pastilles from the catalyst/hydrocarbon mixture while cooling the mixture to temperature below the congealing point of the hydrocarbon.
    Type: Application
    Filed: December 31, 2003
    Publication date: August 12, 2004
    Inventors: David C. Wolfe, Paul D. Schneider, Robert O'Brien, X.D. Hu, Jeff Braden, Patrick McLaughlin, Joe Stack
  • Method and apparatus for the production of enrobed catalyst pastilles
    Publication number: 20040121901
    Abstract: The present development relates to a process for enrobing active catalytic materials with a protective coating to form pastilles, and to an apparatus for making the pastilles. The process comprises mixing an active catalyst powder with a hydrocarbon material in a low-shear jacketed blender at a temperature slightly above the congealing point of the hydrocarbon, and then making pastilles from the catalyst/hydrocarbon mixture while cooling the mixture to temperature below the congealing point of the hydrocarbon.
    Type: Application
    Filed: December 19, 2002
    Publication date: June 24, 2004
    Inventors: David C. Wolfe, Paul D. Schneider, Robert O'Brien, X.D. Hu, Jeff Braden, Patrick McLaughlin, Joe Stack
  • Catalyst adsorbent for removal of sulfur compounds for fuel cells
    Publication number: 20040063576
    Abstract: A catalyst adsorbent for the desulfurization of a feed stream, preferably in a fuel cell, wherein the catalyst includes from about 30 percent to about 80 percent nickel or a nickel compound, from about 5 percent to about 45 percent silica as a carrier, from about 1 percent to about 10 percent alumina as a promoter and from about 0.01 percent to about 15 percent magnesia as a promoter. The invention also includes processes of manufacture of the catalyst adsorbent.
    Type: Application
    Filed: September 30, 2002
    Publication date: April 1, 2004
    Applicant: Sud-Chemie Inc.
    Inventors: Eric Jamie Weston, David C. Wolfe, Michael W. Balakos, Jon P. Wagner, Kevin G. Northway
  • Reduced and stabilized hydrogenation catalysts
    Patent number: 4980327
    Abstract: Transition metal on an inert stable carrier hydrogenation catalysts are stabilized with a coating of a fatty amine and an alkane wherein the fatty amine-alkane coating has a melting point of about 130.degree. C. to about 180.degree. F.
    Type: Grant
    Filed: March 6, 1990
    Date of Patent: December 25, 1990
    Assignee: United Catalysts Inc.
    Inventor: David C. Wolfe