Patents by Inventor Dell T. Rosa

Dell T. Rosa 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: 8083321
    Abstract: There is disclosed a removable radiation cured member suitable for use in protecting a micro-fluid ejection head. Further, a reactant mixture suitable for sealing a micro-fluid ejection head comprising a vinyl-containing oligomer, a filler, and optionally a reactive diluent and/or a photoinitiator is disclosed.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: December 27, 2011
    Assignee: Lexmark International, Inc.
    Inventors: Karina Anne Krawczyk, Bart Allan Mansdorf, Dell T. Rosa, Paul Timothy Spivey
  • Patent number: 7919433
    Abstract: The present invention relates to chromogenic material that may respond and shift in color due to environmental conditions such as heat, light or humidity. The light may include both visible and non-visible light, such as ultraviolet light. The chromogenic material may therefore provide a method to independently develop a latent image on a given substrate, and in particular, to a substrate that includes conventional thermosensitive image forming media.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: April 5, 2011
    Assignee: Lexmark International, Inc.
    Inventors: Philip Michael Cullen, Dell T. Rosa, Louann Behymer Samuels
  • Publication number: 20110015979
    Abstract: A discount may be earned in exchange for experiencing an advertisement. In an example embodiment, a method includes causing information corresponding to a product to be presented. An option to experience an advertisement is also presented. Further, a discount indicator is caused to be presented. The discount indicator indicates that selecting the option enables a discount on the product to be acquired. In another example embodiment, a method includes providing an option to experience an advertisement in exchange for a discount on a product. In response to a user selecting the option to experience the advertisement, the advertisement is presented to the user. After the advertisement has been presented, the discount on the product is awarded to the user.
    Type: Application
    Filed: July 20, 2009
    Publication date: January 20, 2011
    Inventors: Bart Allan Mansdorf, Dell T. Rosa
  • Patent number: 7600853
    Abstract: A liquid is applied by a bounded-region applicator such as a needle applicator over nozzle holes and over at least a continuous region close to the nozzle holes. The liquid is then cured to a solid before significant flow of the liquid into the nozzle holes. The liquid is chosen to cure to a solid which is sufficiently compliant that it deforms and leaves the nozzle holes under moderate pressure from a human hand or finger without breaking. Depending upon the material in which the nozzles are formed and the size of the nozzle holes, the liquid may be uniquely designed to incorporate resilient moieties or segments to satisfy these factors.
    Type: Grant
    Filed: November 17, 2005
    Date of Patent: October 13, 2009
    Assignee: Lexmark International, Inc.
    Inventors: Paige Anne Reardon Bensing, Karina Anne Krawczyk, Dell T. Rosa, Paul Timothy Spivey
  • Patent number: 7540584
    Abstract: An orifice plate sealing tape for an orifice plate of a micro-fluid ejection device and methods for sealing an orifice plate with the sealing tape. The sealing tape includes a flexible polymeric backing film and a radiation cured adhesive applied to a surface of the orifice plate. The adhesive is cured in a pattern sufficient to seal adjacent to nozzle holes in the orifice plate and to enhance removal of the backing film and adhesive from the orifice plate prior to use of the micro-fluid ejection device. Upon removal of the sealing tape, a minimum of residue is left on the nozzle plate surface adjacent to and/or in the nozzle holes.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: June 2, 2009
    Assignee: Lexmark International, Inc.
    Inventors: Craig M. Bertelsen, Richard Michael Moore, Dell T. Rosa, Jeffery L. Sangalli, Jerry E. Stokesbary, Melissa M. Waldeck
  • Publication number: 20080312354
    Abstract: There is disclosed a removable radiation cured member suitable for use in protecting a micro-fluid ejection head. Further, a reactant mixture suitable for sealing a micro-fluid ejection head comprising a vinyl-containing oligomer, a filler, and optionally a reactive diluent and/or a photoinitiator is disclosed.
    Type: Application
    Filed: May 23, 2007
    Publication date: December 18, 2008
    Inventors: Karina Anne Krawczyk, Bart Allan Mansdorf, Dell T. Rosa, Paul Timothy Spivey
  • Patent number: 7461930
    Abstract: An absorbent material is employed as a seal over the printhead nozzles. The absorbent is uni-axial to prevent ink migration laterally, implemented by a lattice of absorbent matter surrounded by ink barriers. Such an absorbent can be sufficiently effective to limit ink migration that a simple tape may be used to bind the absorbent over the orifices of an inkjet cartridge in the manner of a common bandage. The barriers at a minimum a located to surround and keep separate inks of different colors.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: December 9, 2008
    Assignee: Lexmark International, Inc.
    Inventor: Dell T. Rosa
  • Publication number: 20080292807
    Abstract: There is disclosed a removable radiation cured member suitable for use in protecting a micro-fluid ejection head. Further, a reactant mixture suitable for sealing a micro-fluid ejection head comprising a vinyl-containing oligomer, a filler, and optionally a reactive diluent and/or a photoinitiator is disclosed.
    Type: Application
    Filed: May 23, 2007
    Publication date: November 27, 2008
    Inventors: Karina Anne Krawczyk, Bart Allan Mansdorf, Dell T. Rosa, Paul Timothy Spivey
  • Patent number: 7431442
    Abstract: An inkjet ink cartridge (20) having nozzle holes (24) to eject ink is sealed against escape of the ink from the orifices by tape (1) is hard at any temperature the container might reach during shipment and handling. This hardness resists any creep of the tape material into the orifices. The tape is applied after the surface that contacts the region of the orifices is softened by application of solvent for the material of the tape. The solvent softens the surface, causing it to conform closely to the surface having the nozzle plates in the manner of conventional pressure sensitive adhesive. The solvent is then removed. The tape can have high temperature resistance and the solvent need not be one that acts on the nozzles.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: October 7, 2008
    Assignee: Lexmark International, Inc.
    Inventor: Dell T. Rosa
  • Publication number: 20080004176
    Abstract: The present invention relates to chromogenic material that may respond and shift in color due to environmental conditions such as heat, light or humidity. The light may include both visible and non-visible light, such as ultraviolet light. The chromogenic material may therefore provide a method to independently develop a latent image on a given substrate, and in particular, to a substrate that includes conventional thermosensitive image forming media.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 3, 2008
    Inventors: Philip Michael Cullen, Dell T. Rosa, Louann Behymer Samuels
  • Patent number: 7156514
    Abstract: Active enzymes are incorporated into inks to prevent clogging. These may be just cellulase or cellulase and protease, to attack the most prevalent materials. The enzymes decompose the materials they are specific to, which degrades or solubilizes them to prevent clogging at nozzles and other flow features of a printhead.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: January 2, 2007
    Assignee: Lexmark International, Inc.
    Inventor: Dell T. Rosa