Patents by Inventor Patrick J. Howe

Patrick J. Howe 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).

  • Publication number: 20170128987
    Abstract: A system uses microwave energy to remove support material from a three-dimensional printed object with reduced risk of damage to the object. The system includes a microwave source, a three port device, a susceptor, a temperature sensor, and a controller. The controller operates the microwave source to direct microwave energy into a first port of the three port device, which emits the microwave at a second port of the three port device to irradiate the three-dimensional object and melt the support material. Reflected microwave increases as the amount of support material contacting the object is reduced and enters the second port of the three port device, which directs the reflected energy to the susceptor coupled to a third port of the three port device. The controller monitors the signal generated by the temperature sensor and deactivates the microwave source in response to a predetermined condition being reached.
    Type: Application
    Filed: November 11, 2015
    Publication date: May 11, 2017
    Inventors: Ron E. Dufort, Erwin Ruiz, Linn C. Hoover, Andrew W. Hays, Patrick J. Howe, David K. Ahl
  • Publication number: 20170129173
    Abstract: A method of manufacturing a three-dimensional object is disclosed. The method includes operating a first ejector of a three-dimensional object printer to eject a first material towards a platen to form an object. The method further includes operating a second ejector of the three-dimensional object printer to eject a second material towards the platen to form support for portions of the object, the support being configured to provide support for portions of the object during the operation of the first ejector to form the object, at least one portion of the support having a body with at least one fluid path that connects at least one opening in the body to at least one other opening in the body. The method further includes connecting a fluid source to the at least one fluid path of the support to enable fluid to flow through the at least one fluid path to remove at least an inner portion the support from the object.
    Type: Application
    Filed: November 11, 2015
    Publication date: May 11, 2017
    Inventors: David A. Mantell, Andrew W. Hays, Linn C. Hoover, Ron E. Dufort, Erwin Ruiz, Patrick J. Howe
  • Publication number: 20170129183
    Abstract: A method of manufacturing a three-dimensional object facilitates the removal of support material from the object. The method includes forming at least a portion of a support for the object with support material containing nanoparticles of a material that readily converts microwave energy into heat. The object and support are moved to a position opposite a microwave radiator and the microwave radiator is operated to begin a change of the phase of the portion of the support material containing the nanoparticles before beginning a change of the phase of a portion of the support made from the support material alone. A controller either monitors the expiration of a predetermined time period or a temperature of the object to determine when the microwave radiator operation is terminated.
    Type: Application
    Filed: November 11, 2015
    Publication date: May 11, 2017
    Inventors: Ron E. Dufort, Linn C. Hoover, Erwin Ruiz, Patrick J. Howe, Andrew W. Hays
  • Patent number: 9616654
    Abstract: An imaging member includes a surface layer comprising a fluorosilicone and an infrared-absorbing filler. At least 75% of the siloxane units in the fluorosilicone are fluorinated. Methods of manufacturing the imaging member and processes for variably lithographic printing using the imaging member are also disclosed.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: April 11, 2017
    Assignee: Xerox Corporation
    Inventors: Mandakini Kanungo, Maryna Ornatska, David J. Gervasi, Patrick J. Howe, Santokh S. Badesha, Jack Lestrange, Matthew M. Kelly
  • Patent number: 9567486
    Abstract: An imaging member includes a surface layer comprising a fluoroelastomer-silicone composite formed from a reaction mixture comprising a fluoroelastomer, an oxyaminosilane, and an oxysilane-terminated compound. Methods of manufacturing the imaging member and processes for variable lithographic printing using the imaging member are also disclosed.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: February 14, 2017
    Assignee: Xerox Corporation
    Inventors: David J. Gervasi, Mandakini Kanungo, Maryna Ornatska, Santokh S. Badesha, Matthew M. Kelly, Jack Lestrange, Patrick J. Howe
  • Publication number: 20140060359
    Abstract: An imaging member includes a surface layer comprising a fluorosilicone and an infrared-absorbing filler. At least 75% of the siloxane units in the fluorosilicone are fluorinated. Methods of manufacturing the imaging member and processes for variably lithographic printing using the imaging member are also disclosed.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Applicant: XEROX CORPORATION
    Inventors: Mandakini KANUNGO, Maryna ORNATSKA, David J. GERVASI, Patrick J. HOWE, Santokh S. BADESHA, Jack LESTRANGE, Matthew M. KELLY
  • Publication number: 20140060358
    Abstract: An imaging member surface contains a swellable elastomer doped with a release oil. This aids in complete transfer of ink to a receiving substrate when a thin film of release oil forms upon the surface during application of pressure at the nip.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Applicants: XEROX CORPORATION, PALO ALTO RESEARCH CENTER INC.
    Inventors: Bing HSIEH, Timothy D. STOWE, Santokh S. BADESHA, Chu-heng LIU, Mandakini KANUNGO, Jorge A. ALVAREZ, Patrick J. HOWE, Matthew M. KELLY, David J. Gervasi, Palghat Srinivas RAMESH
  • Publication number: 20140060362
    Abstract: An imaging member includes a surface layer comprising a silicone rubber and an infrared-absorbing filler. Methods of fabricating the imaging member and processes for variable lithographic printing using the imaging member are also disclosed.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Applicant: XEROX CORPORATION
    Inventors: Mandakini KANUNGO, Maryna ORNATSKA, David J. GERVASI, Patrick J. HOWE, Santokh S. BADESHA, Matthew M. Kelly
  • Publication number: 20140060363
    Abstract: An imaging member includes a surface layer comprising a silicone rubber and an infrared-absorbing filler. Methods of fabricating the imaging member and processes for variable lithographic printing using the imaging member are also disclosed.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Applicant: XEROX CORPORATION
    Inventors: Matthew M. KELLY, David J. Gervasi, Mandakini KANUNGO, Patrick J. HOWE, Maryna ORNATSKA, Santokh S. BADESHA
  • Publication number: 20140060365
    Abstract: An imaging member includes a surface layer comprising a fluoroelastomer-silicone composite formed from a reaction mixture comprising a fluoroelastomer, an oxyaminosilane, and an oxysilane-terminated compound. Methods of manufacturing the imaging member and processes for variable lithographic printing using the imaging member are also disclosed.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Applicant: XEROX CORPORATION
    Inventors: David J. GERVASI, Mandakini KANUNGO, Maryna ORNATSKA, Santokh S. Badesha, Matthew M. KELLY, Jack LESTRANGE, Patrick J. HOWE
  • Patent number: 8200108
    Abstract: A method and apparatus transfer a material from first roller within a container to at least one second roller, and transfer the material from the second roller to at least one third roller. The second roller and the third roller form a loading nip at a location where the second roller is closest to the third roller. The method and apparatus transfer the material from the third roller to at least one recipient device, and measure current flow between the second roller and the third roller using a measurement device. Then, the method alters the relative rotation rate difference between the first roller and the second roller based on the current flow to maintain a predetermined density of the material at the loading nip using a controller.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: June 12, 2012
    Assignee: Xerox Corporation
    Inventors: Daniel M. Bray, Joseph C. Sheflin, Laurie M. Ciroula, Patrick J. Howe, William H. Wayman, Palghat S. Ramesh
  • Publication number: 20110280606
    Abstract: A method and apparatus transfer a material from first roller within a container to at least one second roller, and transfer the material from the second roller to at least one third roller. The second roller and the third roller form a loading nip at a location where the second roller is closest to the third roller. The method and apparatus transfer the material from the third roller to at least one recipient device, and measure current flow between the second roller and the third roller using a measurement device. Then, the method alters the relative rotation rate difference between the first roller and the second roller based on the current flow to maintain a predetermined density of the material at the loading nip using a controller.
    Type: Application
    Filed: May 14, 2010
    Publication date: November 17, 2011
    Applicant: Xerox Corporation
    Inventors: Daniel M. Bray, Joseph C. Sheflin, Laurie M. Ciroula, Patrick J. Howe, William H. Wayman, Palghat S. Ramesh
  • Patent number: 7406279
    Abstract: A development subsystem is used to develop toner particles transported by semiconductive carrier particles.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: July 29, 2008
    Assignee: Xerox Corporation
    Inventors: James M. Chappell, Patrick J. Howe, Michael D. Thompson
  • Patent number: 7366453
    Abstract: A development subsystem is used to develop developer having semiconductive carrier particles and toner particles. The development subsystem includes a developer housing, for retaining a quantity of developer having semiconductive carrier particles and toner particles, a first magnetic roll having a stationary core with at least one magnet and a sleeve that rotates about the stationary core of the first magnetic roll, a second magnetic roll having a stationary core with at least one magnet and a sleeve that rotates about the stationary core of the second magnetic roll, and a motor coupled to the first and the second magnetic rolls to drive the rotating sleeves of the first and the second magnetic rolls in a direction that is against the direction of a photoreceptor that rotates in proximity to the first and the second magnetic rolls. The first and the second magnetic rolls carry semiconductive carrier particles and toner particles through a development zone formed by the first and the second magnetic rolls.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: April 29, 2008
    Assignee: Xerox Corporation
    Inventors: Michael D. Thompson, James M. Chappell, Steven C. Hart, Patrick J. Howe, Ajay Kumar, Steven R. Leroy, Paul W. Morehouse, Palghat S. Ramesh, Fei Xiao