Patents by Inventor Frederick Harry Rumpf

Frederick Harry Rumpf 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: 7582688
    Abstract: Elastomer composites are produced by novel continuous flow methods and apparatus in which fluid streams of particulate filler and elastomer latex are fed to the mixing zone of a coagulum reactor to form a mixture in semi-confined flow continuously from the mixing zone through a coagulum zone to a discharge end of the reactor. The particulate filler fluid is fed under high pressure to the mixing zone, such as to form a jet stream to entrain elastomer latex fluid sufficiently energetically to substantially completely coagulate the elastomer with the particulate filler prior to the discharge end. Highly efficient and effective elastomer coagulation is achieved without the need for a coagulation step involving exposure to acid or salt solution or the like. Novel elastomer composites are produced. Such novel elastomer composites may be cured or uncured, and combine material properties, such as choice of filler, elastomer, level of filler loading, and macro-dispersion, not previously achieved.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: September 1, 2009
    Assignee: Cabot Corporation
    Inventors: Melinda Ann Mabry, Frederick Harry Rumpf, Ivan Zlatko Podobnik, Scott Adrian Westveer, Allan Clark Morgan, Bin Chung, Malcolm John Andrews
  • Publication number: 20030203992
    Abstract: Elastomer composites are produced by novel continuous flow methods and apparatus in which fluid streams of particulate filler and elastomer latex are fed to the mixing zone of a coagulum reactor to form a mixture in semi-confined flow continuously from the mixing zone through a coagulum zone to a discharge end of the reactor. The particulate filler fluid is fed under high pressure to the mixing zone, such as to form a jet stream to entrain elastomer latex fluid sufficiently energetically to substantially completely coagulate the elastomer with the particulate filler prior to the discharge end. Highly efficient and effective elastomer coagulation is achieved without the need for a coagulation step involving exposure to acid or salt solution or the like. Novel elastomer composites are produced. Such novel elastomer composites may be cured or uncured, and combine material properties, such as choice of filler, elastomer, level of filler loading, and macro-dispersion, not previously achieved.
    Type: Application
    Filed: July 2, 2002
    Publication date: October 30, 2003
    Inventors: Melinda Ann Mabry, Frederick Harry Rumpf, Ivan Zlatko Podobnik, Scott Adrian Westveer, Allan Clark Morgan, Bin Chung, Malcolm John Andrews, Ting Wang, James A. Shell, Noboru Tokita
  • Patent number: 6413478
    Abstract: Elastomer composites are produced by novel continuous flow methods and apparatus in which fluid streams of particulate filler and elastomer latex are fed to the mixing zone of a coagulum reactor to form a mixture in semi-confined flow continuously from the mixing zone through a coagulum zone to a discharge end of the reactor. The particulate filler fluid is fed under high pressure to the mixing zone, such as to form a jet stream to entrain elastomer latex fluid sufficiently energetically to substantially completely coagulate the elastomer with the particulate filler prior to the discharge end. Highly efficient and effective elastomer coagulation is achieved without the need for a coagulation step involving exposure to acid or salt solution or the like. Novel elastomer composites are produced. Such novel elastomer composites may be cured or uncured, and combine material properties, such as choice of filler, elastomer, level of filler loading, and macro-dispersion, not previously achieved.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: July 2, 2002
    Assignee: Cabot Corporation
    Inventors: Melinda Ann Mabry, Frederick Harry Rumpf, Ivan Zlatko Podobnik, Scott Adrian Westveer, Allan Clark Morgan, Bin Chung, Malcolm John Andrews
  • Patent number: 6048923
    Abstract: Elastomer composites are produced by novel continuous flow methods and apparatus in which fluid streams of particulate filler and elastomer latex are fed to the mixing zone of a coagulum reactor to form a mixture in semi-confined flow continuously from the mixing zone through a coagulum zone to a discharge end of the reactor. The particulate filler fluid is fed under high pressure to the mixing zone, such as to form a jet stream to entrain elastomer latex fluid sufficiently energetically to substantially completely coagulate the elastomer with the particulate filler prior to the discharge end. Highly efficient and effective elastomer coagulation is achieved without the need for a coagulation step involving exposure to acid or salt solution or the like. Novel elastomer composites are produced. Such novel elastomer composites may be cured or uncured, and combine material properties, such as choice of filler, elastomer, level of filler loading, and macro-dispersion, not previously achieved.
    Type: Grant
    Filed: March 25, 1997
    Date of Patent: April 11, 2000
    Assignee: Cabot Corporation
    Inventors: Melinda Ann Mabry, Frederick Harry Rumpf, Ivan Zlatko Podobnik, Scott Adrian Westveer, Allan Clark Morgan, Bin Chung, Malcolm John Andrews
  • Patent number: 6040364
    Abstract: Elastomeric compositions are produced by novel continuous flow methods and apparatus in which fluid streams of particulate filler and elastomer latex are fed to the mixing zone of a coagulum reactor to form a mixture flowing continuously from the mixing zone through a coagulum zone to a discharge end of the reactor. The particulate filler fluid is fed under high pressure to the mixing zone, such as to form a jet stream to entrain elastomer latex fluid sufficiently energetically to substantially completely coagulate the elastomer with the particulate filler prior to the discharge end. Semi-confined flow of the mixture in the coagulum zone is achieved preferably with progressively increasing cross-sectional dimension of the coagulum zone from the mixing zone to the discharge end. Highly efficient and effective elastomer coagulation can be achieved without the need for a coagulation step involving exposure to acid or salt solution or the like.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: March 21, 2000
    Assignee: Cabot Corporation
    Inventors: Melinda Ann Mabry, Frederick Harry Rumpf, Ivan Zlatko Podobnik, Scott Adrian Westveer, Allan Clark Morgan, Bin Chung, Malcolm John Andrews