Patents by Inventor Roger Robert Sleger

Roger Robert Sleger 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 servicing an inkjet print head
    Patent number: 7011388
    Abstract: An apparatus for servicing an inkjet print head includes a print head wiper for wiping the inkjet print head and a wiper cleaner adjacent to the print head wiper for cleaning the print head wiper.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: March 14, 2006
    Assignee: Hewlett-Packard Development Company, LP.
    Inventors: John Norman Lodal, Roger Robert Sleger
  • Method and apparatus for servicing an inkjet print head
    Publication number: 20040227784
    Abstract: An apparatus for servicing an inkjet print head includes a print head wiper for wiping the inkjet print head and a wiper cleaner adjacent to the print head wiper for cleaning the print head wiper.
    Type: Application
    Filed: October 15, 2003
    Publication date: November 18, 2004
    Inventors: John Norman Lodal, Roger Robert Sleger
  • Method of manufacturing an inkjet nozzle plate and printhead
    Patent number: 6732433
    Abstract: Manufacturing an inkjet printhead and orifice plate by providing upstanding spaced apart barrier walls on the orifice plate to separate adjacent firing chambers on the printhead. A plurality of orifice plates are initially created in a one-layer array on a workpiece. An abrasive member is controlled to contact and truncate end edge portions of the barrier walls on the workpiece to create mutually coplanar surfaces for engagement with a substrate in order to help prevent cross-talk between adjacent firing chambers.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: May 11, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Roger Robert Sleger
  • Method and apparatus for servicing an inkjet print head
    Patent number: 6692101
    Abstract: An apparatus for servicing an inkjet print head includes a print head wiper for wiping the inkjet print head and a wiper cleaner adjacent to the print head wiper for cleaning the print head wiper.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: February 17, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: John Norman Lodal, Roger Robert Sleger
  • METHOD OF MANUFACTURING AN INKLET NOZZLE PLATE AND PRINTHEAD
    Publication number: 20030206217
    Abstract: A printhead is used to eject printing fluid, such as ink, onto a printing medium. This printhead has an orifice plate defining plural orifices from which the printing fluid is individually ejected onto the printing medium to form characters and images. This orifice plate includes in addition to the plural orifices, plural barrier walls interdigitated with the orifices so that each orifice is between a pair of spaced apart barrier walls. The barrier walls substantially prevent the ejection of printing fluid from one selected orifice from causing an unwanted ejection of printing fluid from adjacent orifices.
    Type: Application
    Filed: August 17, 2001
    Publication date: November 6, 2003
    Inventor: Roger Robert Sleger
  • Method and apparatus for servicing an inkjet print head
    Publication number: 20030202034
    Abstract: An apparatus for servicing an inkjet print head includes a print head wiper for wiping the inkjet print head and a wiper cleaner adjacent to the print head wiper for cleaning the print head wiper.
    Type: Application
    Filed: April 26, 2002
    Publication date: October 30, 2003
    Inventors: John Norman Lodal, Roger Robert Sleger
  • Printer orifice plate with mutually planarized ink flow barriers
    Patent number: 6523938
    Abstract: A printhead is used to eject printing fluid, such as ink, onto a printing medium. This printhead has an orifice plate defining plural orifices from which the printing fluid is individual ejecting into the printing medium to form characters and images. This orifice plate includes in addition to the plural orifices, plural barrier walls interdigitated with the orifices so that each orifice is between a pair of spaced apart barrier walls. The barrier walls substantially prevents the ejection of printing fluid from one selected orifice from causing an unwanted ejection of printing fluid from adjacent orifices.
    Type: Grant
    Filed: January 17, 2000
    Date of Patent: February 25, 2003
    Assignee: Hewlett-Packard Company
    Inventor: Roger Robert Sleger