Patents by Inventor Kathryn Dowlen Mullins

Kathryn Dowlen Mullins 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: 8966761
    Abstract: A method for controlled installation of a brush filament population on a shaft for making a toner adder brush roller includes applying a layer of adhesive over a surface of a roller shaft, applying a template over at least a portion of the shaft surface, and flocking a multiplicity of filaments on the shaft surface to provide a brush on the roller shaft having a filament population controlled by the application of the template. The method also includes removing the template from the shaft surface after flocking the multiplicity of filaments such that a set of filaments less than the multiplicity of filaments is removed with the template. The method further includes flocking additional filaments on the portion of the shaft surface after removing the template from the portion of the shaft surface, the additional filaments differs from said previously flocked filaments in one of material, length, denier, or combinations of the foregoing.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 3, 2015
    Assignee: Lexmark International, Inc.
    Inventors: Jenny Marie Berens, Leea Danielle Haarz, Edwina Floyd Lowry, Kathryn Dowlen Mullins
  • Publication number: 20130009447
    Abstract: A method for controlled installation of a brush filament population on a shaft for making a toner adder brush roller includes applying a layer of adhesive over a surface of a roller shaft, applying a template over at least a portion of the shaft surface, and flocking a multiplicity of filaments on the shaft surface to provide a brush on the roller shaft having a filament population controlled by the application of the template. The method also includes removing the template from the shaft surface after flocking the multiplicity of filaments such that a set of filaments less than the multiplicity of filaments is removed with the template. The method further includes flocking additional filaments on the portion of the shaft surface after removing the template from the portion of the shaft surface, the additional filaments differs from said previously flocked filaments in one of material, length, denier, or combinations of the foregoing.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Inventors: Jenny Marie Berens, Leea Danielle Haarz, Edwina Floyd Lowry, Kathryn Dowlen Mullins
  • Patent number: 8323161
    Abstract: A method for controlled installation of a brush filament population on a shaft for making a toner adder brush roller includes applying a layer of adhesive over a surface of a roller shaft, applying a template over at least a portion of the shaft surface, and flocking a multiplicity of filaments on the shaft surface to provide a brush on the roller shaft having a filament population controlled by the application of the template. The method also includes removing the template from the shaft surface after flocking the multiplicity of filaments such that a set of filaments less than the multiplicity of filaments is removed with the template. The method further includes flocking additional filaments on the portion of the shaft surface after removing the template from the portion of the shaft surface, the additional filaments differs from said previously flocked filaments in one of material, length, denier, or combinations of the foregoing.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: December 4, 2012
    Assignee: Lexmark International, Inc.
    Inventors: Jenny Marie Berens, Leea Danielle Haarz, Edwina Floyd Lowry, Kathryn Dowlen Mullins
  • Publication number: 20100154978
    Abstract: A method for controlled installation of a brush filament population on a shaft for making a toner adder brush roller includes applying a layer of adhesive over a surface of a roller shaft, applying a template over at least a portion of the shaft surface, and flocking a multiplicity of filaments on the shaft surface to provide a brush on the roller shaft having a filament population controlled by the application of the template. The method also includes removing the template from the shaft surface after flocking the multiplicity of filaments such that a set of filaments less than the multiplicity of filaments is removed with the template. The method further includes flocking additional filaments on the portion of the shaft surface after removing the template from the portion of the shaft surface, the additional filaments differs from said previously flocked filaments in one of material, length, denier, or combinations of the foregoing.
    Type: Application
    Filed: December 22, 2008
    Publication date: June 24, 2010
    Inventors: Jenny Marie Berens, Leea Danielle Haarz, Edwina Floyd Lowry, Kathryn Dowlen Mullins
  • Patent number: 6954606
    Abstract: A drive roller having a polyurethane coating that has a coefficient of friction with respect to a belt effective to drive the belt over the operative life of the belt. The drive roller may be included in an image-forming device to drive a belt.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: October 11, 2005
    Assignee: Lexmark International, Inc.
    Inventors: Johnathan Lee Barnes, William Hargis Barton, Donald Leo Elbert, Kathryn Dowlen Mullins, Stacy Marie Pargett, Ronald Lloyd Roe
  • Publication number: 20040205967
    Abstract: A drive roller comprising a polyurethane coating having a coefficient of friction with respect to a belt effective to drive the belt over the operative life of the belt. The drive roller may be included in an image-forming device to drive a belt.
    Type: Application
    Filed: April 18, 2003
    Publication date: October 21, 2004
    Inventors: Johnathan Lee Barnes, William Hargis Barton, Donald Leo Elbert, Kathryn Dowlen Mullins, Stacy Marie Pargett, Ronald Lloyd Roe
  • Patent number: 6458461
    Abstract: Provided is a release agent composition useful in an electrophotographic process. The composition is comprised of certain heat-stable grafted silicone interpolymers. The interpolymers have a melting point such that it is in the form of a liquid on a hot fuser roll, but solidifies to a waxy solid at room temperature. The compositions of the invention were found to reduce transparency streaking in wiper pad systems and when used in felt roll applications, were found to be equal to silicone oil in transmission ratio and transparency streaking. Accordingly, the release agent compositions are especially efficacious in duplex and transparency printing. The release agent compositions of the present invention also exhibit superior release performance and facilitate clean release of toner from fuser rolls in an electrophotographic imaging process.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: October 1, 2002
    Assignee: Lexmark International, Inc
    Inventors: Bryan Michael Blair, Kelly Ann Killeen, Kathryn Dowlen Mullins
  • Publication number: 20020098365
    Abstract: Provided is a release agent composition useful in an electrophotographic process. The composition is comprised of certain heat-stable grafted silicone interpolymers. The interpolymers have a melting point such that it is in the form of a liquid on a hot fuser roll, but solidifies to a waxy solid at room temperature. The compositions of the invention were found to reduce transparency streaking in wiper pad systems, and when used in felt roll applications, were found to be equal to silicone oil in transmission ratio and transparency streaking. Accordingly, the release agent compositions are especially efficacious in duplex and transparency printing. The release agent compositions of the present invention also exhibit superior release performance and facilitate clean release of toner from fuser rolls in an electrophotographic imaging process.
    Type: Application
    Filed: December 6, 2000
    Publication date: July 25, 2002
    Inventors: Bryan Michael Blair, Kelly Ann Killeen, Kathryn Dowlen Mullins
  • Patent number: 6225370
    Abstract: An ink composition comprises a colorant and an additive. The additive is selected from the group consisting of first dispersants synthesized from an aromatic mercaptan, a hydrophilic monomer, a hydrophobic polymeric reactant having a siloxyl substituent and a first stabilizing reactant; second dispersants synthesized from a non-aromatic mercaptan, a hydrophilic monomer, a hydrophobic polymeric reactant having a siloxyl substituent, and a second stabilizing reactant selected from the group consisting of nonylphenoxy (PEG)4-6 methacrylate, nonylphenoxy (PPG)4-6 methacrylate, nonylphenoxy (PEG)4 6 acrylate, nonylphenoxy (PPG)4-6 acrylate and mixtures thereof; humectant mixtures comprising a bis-hydroxy terminated thioether, a lactam, and a compound selected from the group consisting of polyalkylene glycols, polyol/alkylene oxide condensates and mixtures thereof; and mixtures thereof.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: May 1, 2001
    Assignee: Lexmark International, Inc.
    Inventors: Ajay Kanubhai Suthar, Bradley Leonard Beach, Kathryn Dowlen Mullins, Jing X. Sun, Robin Gnerlich Baskette