Patents by Inventor Barry R. Havens

Barry R. Havens 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 PREPARING LOW HAZE POLYMER COMPOSITIONS FOR USE IN HIGH REFRACTIVE INDEX OPTICAL MATERIALS
    Publication number: 20230147118
    Abstract: A method of preparing a low bubbling and low yellowing, high refractive index polyurethane or polythiourethane is provided. A method of evaluating an aromatic polyiso(thio)cyanate material, such as an aromatic diisocyanate, e.g., m-xylylene cyanate, is provided. The method evaluates transmittance in a sample of the isocyanate to determine if the aromatic polyiso(thio)cyanate material will lead to unacceptable bubbling or yellowing in a high refractive index or high Abbe number polymer composition.
    Type: Application
    Filed: March 24, 2021
    Publication date: May 11, 2023
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Barry R. Havens, Darrin R. Dabideen, Matthew S. Luchansky, Nigel D. Kidder-Wolff
  • Cleaning apparatuses for fusing systems
    Patent number: 9152098
    Abstract: An embodiment generally relates to a xerographic fusing apparatus including a fuser member; and a cleaning mechanism for the fuser member. The cleaning mechanism can include an abrasive cleaning web in contact with the fuser member, the abrasive cleaning web including a non-woven fabric and at least one abrasive; a supply roll configured to advance the abrasive cleaning web; and a take-up roll configured to collect the abrasive cleaning web.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: October 6, 2015
    Assignee: XEROX CORPORATION
    Inventor: Barry R. Havens
  • Chemically treated cleaning web
    Patent number: 8606158
    Abstract: The present teachings provide a fuser cleaning apparatus that includes a rotatable fuser member and a cleaning web. The cleaning web is impregnated with a chelating agent including citric acid. The cleaning web is translatable and arranged to directly or indirectly contact the rotatable fuser member whereby the citric acid is transferred to the rotatable fuser member to inhibit Zn contamination on the rotatable fuser member.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: December 10, 2013
    Assignee: Xerox Corporation
    Inventor: Barry R. Havens
  • CHEMICALLY TREATED CLEANING WEB
    Publication number: 20130094886
    Abstract: The present teachings provide a fuser cleaning apparatus that includes a rotatable fuser member and a cleaning web. The cleaning web is impregnated with a chelating agent comprising citric acid. The cleaning web is translatable and arranged to directly or indirectly contact the rotatable fuser member whereby the citric acid is transferred to the rotatable fuser member to inhibit Zn contamination on the rotatable fuser member.
    Type: Application
    Filed: October 12, 2011
    Publication date: April 18, 2013
    Applicant: XEROX CORPORATION
    Inventor: Barry R. Havens
  • CLEANING APPARATUSES FOR FUSING SYSTEMS
    Publication number: 20130004215
    Abstract: An embodiment generally relates to a xerographic fusing apparatus including a fuser member; and a cleaning mechanism for the fuser member. The cleaning mechanism can include an abrasive cleaning web in contact with the fuser member, the abrasive cleaning web including a non-woven fabric and at least one abrasive; a supply roll configured to advance the abrasive cleaning web; and a take-up roll configured to collect the abrasive cleaning web.
    Type: Application
    Filed: June 28, 2011
    Publication date: January 3, 2013
    Applicant: XEROX CORPORATION
    Inventor: Barry R. Havens