Patents by Inventor Frank Marion Hughes

Frank Marion Hughes 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).

  • Transfer NIP for an electrophotographic device, and methods of making and using same
    Patent number: 8588667
    Abstract: An imaging apparatus having a toner transfer station, including a donating member for donating toner forming an image; and a transfer roll which serves to form a transfer nip in which toner is transferred from the donating member to a media sheet disposed in the transfer nip between the donating member and the transfer roll, wherein a product of a resistivity of the transfer nip and a dielectric constant thereof is greater than or equal to a product of a resistivity of the media sheet and a dielectric constant thereof.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: November 19, 2013
    Assignee: Lexmark International, Inc
    Inventors: Julie Ann Gordon Whitney, Kerry Leland Embry, Bartley Charles Gould, II, Frank Marion Hughes, Brandon Alden Kemp, Kurt Daniel Lambert, Niko Jay Murrell
  • Transfer NIP for an Electrophotographic Device, and Methods of Making and Using Same
    Publication number: 20110318070
    Abstract: An imaging apparatus having a toner transfer station, including a donating member for donating toner forming an image; and a transfer roll which serves to form a transfer nip in which toner is transferred from the donating member to a media sheet disposed in the transfer nip between the donating member and the transfer roll, wherein a product of a resistivity of the transfer nip and a dielectric constant thereof is greater than or equal to a product of a resistivity of the media sheet and a dielectric constant thereof.
    Type: Application
    Filed: June 29, 2010
    Publication date: December 29, 2011
    Inventors: Julie Ann Gordon Whitney, Kerry Leland Embry, Bartley Charles Gould, II, Frank Marion Hughes, Brandon Alden Kemp, Kurt Daniel Lambert, Niko Jay Murrell
  • Carrier assembly and ink jet printhead assembly associated therewith
    Patent number: 6386681
    Abstract: The printhead unit is for an imaging apparatus having a guide member. The printhead unit is configured to be positioned in a carrier assembly within the imaging apparatus and is configured for movement within the imaging apparatus via the carrier assembly. The printhead unit includes a housing a printhead and at least one bearing. The housing has at least a first side member. The printhead is attached at least to the first side member of the housing. Further, the at least one bearing has at least one bearing surface, the at least one bearing being coupled to the first side member of the housing and positioned to engage the guide member.
    Type: Grant
    Filed: February 1, 2000
    Date of Patent: May 14, 2002
    Assignee: Lexmark International, Inc.
    Inventors: Benjamin Alan Askren, John Edward Borsuk, Larry Steven Foster, Frank Marion Hughes, Darren Wayne Tosh
  • Typewriter selection drive follower block and shuttle assembly
    Patent number: 4094397
    Abstract: A shuttle is disclosed which carries as part of its assembly at least a pair of follower blocks for providing the motion required to effect selection on a single element typewriter. The shuttle allows the follower blocks to provide the requisite motion and also allows a non-disengaging drive of the shuttle with the controlling driving shaft.
    Type: Grant
    Filed: January 3, 1977
    Date of Patent: June 13, 1978
    Assignee: International Business Machines Corporation
    Inventor: Frank Marion Hughes