Patents by Inventor Jack T. Lestrange
Jack T. Lestrange 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).
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Publication number: 20200353769Abstract: An intermediate roller positioned between a fountain solution vapor supply and an imaging member decouples fountain solution vapor deposition from the surface of the imaging member. The intermediate roller may be temperature controlled. A uniform layer of fountain solution condenses onto the surface of the temperature controlled intermediate roller regardless of the imaging blanket temperature. The fountain solution condensate layer deposited onto the intermediate roller splits and deposits a thin uniform layer of fountain solution liquid onto the imaging member surface. This liquid layer split may be independent of the temperature of the imaging member surface, resulting in a uniform layer of fountain solution on the imaging blanket for better imaging quality. Remotely locating the vaporizing chamber away from the imaging member prevents undesired heat transfer from a hot vaporizing chamber/baffle to the imaging member surface.Type: ApplicationFiled: July 30, 2020Publication date: November 12, 2020Inventors: Jack T. LESTRANGE, Peter J. KNAUSDORF, Joseph C. SHEFLIN
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Publication number: 20200353770Abstract: The present disclosure is directed to a multilayer imaging blanket for a variable data lithography printing system, including: a multilayer base having a lower contacting surface configured to wrap around or to be mounted on a cylinder core of the variable data lithography printing system; and a platinum catalyzed fluorosilicone surface layer opposite the lower contacting surface; wherein the multilayer base is a sulfur-free carcass including: a top layer including a sulfur-free rubber substrate such as an ethylene propylene diene monomer (EPDM) rubber substrate, a bottom layer including the lower contacting surface; and a compressible layer disposed between the top layer and the bottom layer, the compressible layer being attached to a surface of the top layer opposite the platinum catalyzed fluorosilicone surface layer and a surface of the bottom layer opposite the lower contacting surface, optionally the top layer further comprises a reinforcing fabric layer, the reinforcing fabric layer attached to a surfaType: ApplicationFiled: May 7, 2019Publication date: November 12, 2020Applicant: XEROX CORPORATIONInventors: Varun Sambhy, Lin Ma, Kyle B. Tallman, Santokh S. Badesha, Michael S. Roetker, Mark C. Petropoulos, Jack T. LeStrange, Joseph C. Sheflin, Peter J. Knausdorf, Jorge A. Alvarez
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Patent number: 10821746Abstract: A surface treatment system includes a holder configured to secure an object within the holder and a surface treatment device that is configured to treat a surface of the object within the holder with two types of surface treatments. The device is capable of producing a plasma or a flame at its nozzle for surface treatment. By controlling the materials supplied to the device and the way in which is operated, either a flame or plasma is produced. Thus, the surface treatment system is capable of treating a wide range of materials for printing by a direct-to-object printer.Type: GrantFiled: April 1, 2019Date of Patent: November 3, 2020Assignee: Xerox CorporationInventors: Jack T. LeStrange, Anthony S. Condello, Mandakini Kanungo, Peter J. Knausdorf
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Patent number: 10800196Abstract: An intermediate roller positioned between a fountain solution vapor supply and an imaging member decouples fountain solution vapor deposition from the surface of the imaging member. The intermediate roller may be temperature controlled. A uniform layer of fountain solution condenses onto the surface of the temperature controlled intermediate roller regardless of the imaging blanket temperature. The fountain solution condensate layer deposited onto the intermediate roller splits and deposits a thin uniform layer of fountain solution liquid onto the imaging member surface. This liquid layer split may be independent of the temperature of the imaging member surface, resulting in a uniform layer of fountain solution on the imaging blanket for better imaging quality. Remotely locating the vaporizing chamber away from the imaging member prevents undesired heat transfer from a hot vaporizing chamber/baffle to the imaging member surface.Type: GrantFiled: April 25, 2018Date of Patent: October 13, 2020Assignee: Xerox CorporationInventors: Jack T. Lestrange, Peter J. Knausdorf, Joseph C. Sheflin
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Publication number: 20200307293Abstract: Provided herein is an imaging blanket for variable data lithography comprising (i) a substrate and (ii) a thermally-conductive composition disposed on the substrate comprising a silicone elastomer and a thermally-conductive filler selected from metal oxides, wherein the thermally-conductive composition has a thermal conductivity ranging from about 0.6 W/m2 to about 1.6 W/m2. Further provided herein a method of making the imaging blanket, as well as a printing system comprising the imaging blanket, wherein the imaging blanket has improved thermal conductivity.Type: ApplicationFiled: March 28, 2019Publication date: October 1, 2020Applicant: XEROX CORPORATIONInventors: Varun Sambhy, Joseph Sheflin, Peter Knausdorf, Mark C. Petropoulos, Jack T. LeStrange, Santokh S. Badesha
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Publication number: 20200282718Abstract: A print system and a method for confirming complete curing of a marking material are disclosed. For example, the print system includes a plurality of printheads arranged in a two-dimensional array, a curing light source, a curing confirmation system, a movable member to hold an object and a controller to control movement of the movable member to move the object past the array of printheads, to operate the plurality of printheads to eject the marking material onto the object as the object passes the two-dimensional array of printheads, to operate the curing light source to cure the marking material and to operate the curing confirmation system to confirm that the curing of the marking material is complete.Type: ApplicationFiled: May 20, 2020Publication date: September 10, 2020Inventors: Anthony S. Condello, Jack T. LeStrange, Peter J. Knausdorf, Mandakini Kanungo, Xin Yang
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Patent number: 10759188Abstract: A surface treatment system includes a holder configured to secure an object within the holder and a plurality of surface treatment devices. Each surface treatment device is configured to treat a surface of the object within the holder differently than each of the other surface treatment devices in the plurality of surface treatment devices. A controller is configured to operate the surface treatment devices independently of one another so less than all of the devices can be operated to treat an object surface. Thus, the surface treatment system is capable of treating a wide range of materials for printing by a direct-to-object printer.Type: GrantFiled: April 24, 2017Date of Patent: September 1, 2020Assignee: Xerox CorporationInventors: Jack T. LeStrange, Anthony S. Condello, Mandakini Kanungo, Peter J. Knausdorf
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Patent number: 10744792Abstract: A system for printing on a multi-dimensional object includes a plurality of print heads, and a printing chase comprising one or more alignment elements configured to provide accurate registration of an object holder (also configured as an object packaging) relative to the print heads. The system further includes an actuator configured to move the printing chase relative to the print heads. The system is configured to receive information corresponding to an alignment element that is employed for positioning the object holder on the printing chase, determine a position a printable area using the retrieved information, receive information relating to print data to be printed on the printable area, use the determined position of the printable area to control a movement of the printing chase relative to the print heads, and operate the print heads to eject marking material onto the printable area to print data on the printable area.Type: GrantFiled: June 3, 2019Date of Patent: August 18, 2020Assignee: Xerox CorporationInventors: Anthony S. Condello, Peter J. Knausdorf, Jack T. LeStrange, Mandakini Kanungo, Xin Yang
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Patent number: 10737483Abstract: In a digital inking system having an anilox member that carries a patterned metered layer of ink to a digital imaging member, and a doctor blade that removes excess ink from the surface of the anilox member resulting in the patterned metered layer, an overfill form roller in rolling contact with the anilox member adds an overcoat layer of ink on the patterned metered layer for transfer of both layers of ink to the digital imaging member. The overcoat layer of ink uniformly covers all regions of the anilox member and the mattered metered layer of ink, including lands of the anilox cell walls to make the combined layers of ink pattern-free.Type: GrantFiled: February 19, 2018Date of Patent: August 11, 2020Assignees: Xerox Corporation, Palo Alto Research Center IncorporatedInventors: Jack T. Lestrange, Gregory B. Anderson, Peter J. Knausdorf, Joanne L. Lee
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Patent number: 10688809Abstract: A printer includes an ultraviolet (UV) curing device having UV light emitting diodes (LEDs) to cure UV curable inks ejected onto a surface after the surface travels past a plurality of printheads in the printer. A UV detector having UV sensors is positioned opposite the UV curing device so the UV sensors and UV LEDs are opposite one another in a one-to-one correspondence. A controller operates the UV curing device to direct UV light into the UV detector and receives electrical signals generated by the UV sensors. The controller compares these electrical signals to a predetermined threshold to identify defective LEDs in the UV curing device. The controller then determines how to move the UV curing device across the path of the surface to irradiate areas of the surface previously opposite the defective UV LEDs.Type: GrantFiled: July 17, 2018Date of Patent: June 23, 2020Assignee: Xerox CorporationInventors: Anthony S. Condello, Jack T. LeStrange, Xin Yang, Mandakini Kanungo, Peter J. Knausdorf
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Patent number: 10688773Abstract: A print system and a method for confirming complete curing of a marking material are disclosed. For example, the print system includes a plurality of printheads arranged in a two-dimensional array, a curing light source, a curing confirmation system, a movable member to hold an object and a controller to control movement of the movable member to move the object past the array of printheads, to operate the plurality of printheads to eject the marking material onto the object as the object passes the two-dimensional array of printheads, to operate the curing light source to cure the marking material and to operate the curing confirmation system to confirm that the curing of the marking material is complete.Type: GrantFiled: March 29, 2017Date of Patent: June 23, 2020Assignee: Xerox CorporationInventors: Anthony S. Condello, Jack T. LeStrange, Peter J. Knausdorf, Mandakini Kanungo, Xin Yang
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Patent number: 10604594Abstract: A method for evaluating curing in an ink composition comprises depositing an ink composition on the surface of an object via a direct-to-object inkjet printing system to form a film thereon, the ink composition comprising a photoinitiator capable of initiating a free radical polymerization process in the ink composition upon the absorption of light to cure the deposited film; exposing, in-situ, the deposited film to light generated by a first source of light under conditions which initiate the free radical polymerization process to cure the deposited film; exposing, in-situ, the cured film to light generated by a second source of light under conditions which induce light absorption by unreacted photoinitiator in the cured film; measuring the absorbance of the cured film; and determining a degree of cure in the cured film from the measured absorbance and predetermined calibration data.Type: GrantFiled: July 2, 2019Date of Patent: March 31, 2020Assignee: XEROX CORPORATIONInventors: Mandakini Kanungo, Jack T. LeStrange, Peter Knausdorf, Xin Yang, Anthony S. Condello
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Patent number: 10576754Abstract: A direct-to-object printer includes an ultraviolet (UV) curing verification subsystem. The verification subsystem includes a ribbon that frictionally engages an image on an object that contains UV curable material. An imaging device generates image data of the ribbon that engaged the image and the image data is processed to determine whether any uncured UV material is present on the ribbon.Type: GrantFiled: May 30, 2017Date of Patent: March 3, 2020Assignee: Xerox CorporationInventors: Peter J. Knausdorf, Jack T. LeStrange, Anthony S. Condello, Mandakini Kanungo, Xin Yang
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Publication number: 20190329582Abstract: An intermediate roller positioned between a fountain solution vapor supply and an imaging member decouples fountain solution vapor deposition from the surface of the imaging member. The intermediate roller may be temperature controlled. A uniform layer of fountain solution condenses onto the surface of the temperature controlled intermediate roller regardless of the imaging blanket temperature. The fountain solution condensate layer deposited onto the intermediate roller splits and deposits a thin uniform layer of fountain solution liquid onto the imaging member surface. This liquid layer split may be independent of the temperature of the imaging member surface, resulting in a uniform layer of fountain solution on the imaging blanket for better imaging quality. Remotely locating the vaporizing chamber away from the imaging member prevents undesired heat transfer from a hot vaporizing chamber/baffle to the imaging member surface.Type: ApplicationFiled: April 25, 2018Publication date: October 31, 2019Inventors: Jack T. LESTRANGE, Peter J. KNAUSDORF, Joseph C. SHEFLIN
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Publication number: 20190322772Abstract: A method for evaluating curing in an ink composition comprises depositing an ink composition on the surface of an object via a direct-to-object inkjet printing system to form a film thereon, the ink composition comprising a photoinitiator capable of initiating a free radical polymerization process in the ink composition upon the absorption of light to cure the deposited film; exposing, in-situ, the deposited film to light generated by a first source of light under conditions which initiate the free radical polymerization process to cure the deposited film; exposing, in-situ, the cured film to light generated by a second source of light under conditions which induce light absorption by unreacted photoinitiator in the cured film; measuring the absorbance of the cured film; and determining a degree of cure in the cured film from the measured absorbance and predetermined calibration data.Type: ApplicationFiled: July 2, 2019Publication date: October 24, 2019Inventors: Mandakini Kanungo, Jack T. LeStrange, Peter Knausdorf, Xin Yang, Anthony S. Condello
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Patent number: 10442214Abstract: A solid blanket receives a flood layer of very thin (e.g., about 10 ?m or less) image receiving UV curable coating, which may be a clear, substantially clear, or tinted UV ink. A lower viscosity digital ink image may then be printed on top of the flood layer, for example by jetting UV ink on top of the flood layer. The lower viscosity UV digital ink sits on top of the thicker UV curable coating and maintains its location by surface tension interaction with the coating. The combination of ink and coating is then partially cured to a tacky state at which point it is transferred to print media via a conformable pressure nip. Since the lower viscosity jetted inks are not responsible for directly wetting the media, media latitude widens greatly. Further, no dampening fluid or fountain solution is needed to aid the transfer or the imaging.Type: GrantFiled: November 13, 2018Date of Patent: October 15, 2019Assignee: Xerox CorporationInventors: Anthony S. Condello, Paul J. McConville, Jack T. Lestrange, Chu-Heng Liu
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Publication number: 20190299662Abstract: Backing material is passed by a first heater to pre-heat the backing material. The backing material is then passed by a printing engine to print marking material on the backing material, and passed by a first light source to apply ultra-violet (UV) light to the marking material printed on the backing material, to partially cure the marking material. Further, the backing material is passed by a container to expose the partially cured marking material to adhesive particles to cause the adhesive particles to adhere only to the marking material. The backing material is passed by a second light source to apply additional UV light to the marking material partially cured on the backing material to fully cure the marking material. Finally, the backing material is passed by a second heater to melt the adhesive particles that are adhered to the marking material on the backing material.Type: ApplicationFiled: June 17, 2019Publication date: October 3, 2019Applicant: Xerox CorporationInventors: Anthony S. Condello, Jack T. Lestrange
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Publication number: 20190283454Abstract: A system for printing on a multi-dimensional object includes a plurality of print heads, and a printing chase comprising one or more alignment elements configured to provide accurate registration of an object holder (also configured as an object packaging) relative to the print heads. The system further includes an actuator configured to move the printing chase relative to the print heads. The system is configured to receive information corresponding to an alignment element that is employed for positioning the object holder on the printing chase, determine a position a printable area using the retrieved information, receive information relating to print data to be printed on the printable area, use the determined position of the printable area to control a movement of the printing chase relative to the print heads, and operate the print heads to eject marking material onto the printable area to print data on the printable area.Type: ApplicationFiled: June 3, 2019Publication date: September 19, 2019Inventors: Anthony S. Condello, Peter J. Knausdorf, Jack T. LeStrange, Mandakini Kanungo, Xin Yang
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Patent number: 10406830Abstract: Backing material is passed by a first heater to pre-heat the backing material. The backing material is then passed by a printing engine to print marking material on the backing material, and passed by a first light source to apply ultra-violet (UV) light to the marking material printed on the backing material, to partially cure the marking material. Further, the backing material is passed by a container to expose the partially cured marking material to adhesive particles to cause the adhesive particles to adhere only to the marking material. The backing material is passed by a second light source to apply additional UV light to the marking material partially cured on the backing material to fully cure the marking material. Finally, the backing material is passed by a second heater to melt the adhesive particles that are adhered to the marking material on the backing material.Type: GrantFiled: March 29, 2017Date of Patent: September 10, 2019Assignee: Xerox CorporationInventors: Anthony S. Condello, Jack T. Lestrange
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Publication number: 20190255833Abstract: In a digital inking system having an anilox member that carries a patterned metered layer of ink to a digital imaging member, and a doctor blade that removes excess ink from the surface of the anilox member resulting in the patterned metered layer, an overfill form roller in rolling contact with the anilox member adds an overcoat layer of ink on the patterned metered layer for transfer of both layers of ink to the digital imaging member. The overcoat layer of ink uniformly covers all regions of the anilox member and the mattered metered layer of ink, including lands of the anilox cell walls to make the combined layers of ink pattern-free.Type: ApplicationFiled: February 19, 2018Publication date: August 22, 2019Inventors: Jack T. LESTRANGE, Gregory B. ANDERSON, Peter J. KNAUSDORF, Joanne L. LEE