Patents by Inventor Edward A. Domm
Edward A. Domm 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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Patent number: 9405254Abstract: Described herein is a device that generates a beam of light with uniform intensity. The device includes an array of light sources. The light generated passes through a beam splitter. One beam is used for feedback to maintain uniform intensity. The other beam passes through a barrel which is used to mold the beam with uniform intensity into the desired shape and to reduce divergence. The device can be used as part of a quality control system for testing a photoreceptor drum.Type: GrantFiled: November 26, 2013Date of Patent: August 2, 2016Assignee: XEROX CORPORATIONInventors: Markus R. Silvestri, Edward A. Domm, Mario Errico, Charles Hubert Henry Howes, Martin John Hinckel, Surendar Jeyadev, Nancy L. Belknap
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Publication number: 20150147075Abstract: Described herein is a device that generates a beam of light with uniform intensity. The device includes an array of light sources. The light generated passes through a beam splitter. One beam is used for feedback to maintain uniform intensity. The other beam passes through a barrel which is used to mold the beam with uniform intensity into the desired shape and to reduce divergence. The device can be used as part of a quality control system for testing a photoreceptor drum.Type: ApplicationFiled: November 26, 2013Publication date: May 28, 2015Applicant: Xerox CorporationInventors: Markus R. Silvestri, Edward A. Domm, Mario Errico, Charles Hubert Henry Howes, Martin John Hinckel, Surendar Jeyadev, Nancy L. Belknap
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Patent number: 8992818Abstract: Described herein is a method of forming a seamless transfer member suitable for use with an image forming system. The method includes spray coating a UV curable polymer and conductive particles onto an inner surface of a rotating cylindrical mandrel. The UV curable polymer is cured with ultra violet energy. The cured UV polymer is removed from the cylindrical rotatable mandrel.Type: GrantFiled: July 13, 2010Date of Patent: March 31, 2015Assignee: Xerox CorporationInventors: Satchidanand Mishra, Edward A. Domm, Jin Wu, Geoffrey M. T. Foley, Edward F. Grabowski
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Publication number: 20120015153Abstract: Described herein is a method of forming a seamless transfer member suitable for use with an image forming system. The method includes spray coating a UV curable polymer and conductive particles onto an inner surface of a rotating cylindrical mandrel. The UV curable polymer is cured with ultra violet energy. The cured UV polymer is removed from the cylindrical rotatable mandrel.Type: ApplicationFiled: July 13, 2010Publication date: January 19, 2012Applicant: XEROX CORPORATIONInventors: Satchidanand Mishra, Edward A. Domm, Jin Wu, Geoffrey M.T. Foley, Edward F. Grabowski
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Patent number: 7187534Abstract: By varying corona producing element height/projection, a more uniform charge potential is achieved. Elements, such as pins or teeth, are shorter at the edges of an element array and grow longer as one moves toward the center of the array. Such variation in height/projection overcomes shielding from adjacent teeth, as well as other effects, to yield the more uniform charging potential.Type: GrantFiled: November 25, 2003Date of Patent: March 6, 2007Assignee: Xerox CorporationInventors: Satchidanand Mishra, Edward A. Domm, Dennis J. Prosser, Steven P. Nonkes, Zoran D. Popovic, Surendar Jevadev
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Patent number: 7094048Abstract: Apparatus comprising a support member having a flat surface adapted to receive and support a seam region of a flexible belt comprising thermoplastic polymer material having a predetermined glass transition temperature, a heatable member having a smooth heatable flat surface for compressing at least a portion of the seam region of a flexible belt placed on the smooth flat surface of the support member to heat the portion to at least the glass transition temperature of the thermoplastic polymer material, the smooth surface of the heatable member having a profile which is parallel to the smooth flat surface of the support member, and wherein the heatable flat surface comprises a low surface energy or abhesive material.Type: GrantFiled: June 26, 2001Date of Patent: August 22, 2006Assignee: Xerox CorporationInventors: Satchidanand Mishra, Robert C. U. Yu, Anthony M. Horgan, Bing R. Hsieh, Donald C. VonHoene, Edward F. Grabowski, Richard L. Post, Edward A. Domm
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Patent number: 6970669Abstract: A belt loading apparatus has been provided for loading a flimsy continuous belt onto a belt support and drive assembly including a vertical front end having a first shape and without damage to the belt. The belt loading apparatus includes a wall member defining a sleeve including an outer surface having a total outer surface area, a first edge and a second and opposite edge. The second edge has a vertical profile having a second shape such that the second shape of the second edge is a mirror image of the first shape of the belt support and drive assembly. The belt loading apparatus then includes friction reducing members formed on the outer surface of the sleeve for temporarily supporting and spacing a flimsy continuous belt to be loaded onto the belt support and drive assembly. The friction reducing members each have a belt contact area such that a sum total of belt contact areas of all the friction reducing members is significantly less than the total outer surface area of the sleeve.Type: GrantFiled: November 21, 2003Date of Patent: November 29, 2005Assignee: Xerox CorporationInventors: Satchidanand Mishra, Satish R. Parikh, Robert C. U. Yu, Edward A. Domm
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Patent number: 6909867Abstract: By varying corona producing element height/projection, a more uniform charge potential is achieved. Elements, such as pins or teeth, are shorter at the edges of an element array and grow longer as one moves toward the center of the array. Such variation in height/projection overcomes shielding from adjacent teeth, as well as other effects, to yield the more uniform charging potential.Type: GrantFiled: August 29, 2003Date of Patent: June 21, 2005Assignee: Xerox CorporationInventors: Satchidanand Mishra, Edward A. Domm, Dennis J. Prosser, Steven P. Nonkes, Zoran D. Popovic
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Publication number: 20040105701Abstract: By varying corona producing element height/projection, a more uniform charge potential is achieved. Elements, such as pins or teeth, are shorter at the edges of an element array and grow longer as one moves toward the center of the array. Such variation in height/projection overcomes shielding from adjacent teeth, as well as other effects, to yield the more uniform charging potential.Type: ApplicationFiled: August 29, 2003Publication date: June 3, 2004Applicant: Xerox CorporationInventors: Satchidanand Mishra, Edward A. Domm, Dennis J. Prosser, Steven P. Nonkes, Zoran D. Popovic
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Publication number: 20040105210Abstract: By varying corona producing element height/projection, a more uniform charge potential is achieved. Elements, such as pins or teeth, are shorter at the edges of an element array and grow longer as one moves toward the center of the array. Such variation in height/projection overcomes shielding from adjacent teeth, as well as other effects, to yield the more uniform charging potential.Type: ApplicationFiled: November 25, 2003Publication date: June 3, 2004Applicant: Xerox CorporationInventors: Satchidanand Mishra, Edward A. Domm, Dennis J. Prosser, Steven P. Nonkes, Zoran D. Popovic, Surendar Jevadev
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Patent number: 6652691Abstract: A process for providing an improved imaging member belt having a welded seam which exhibits greater resistance to dynamic fatigue induced seam cracking and delamination. An apparatus for achieving stress relaxation and eliminating protrusions in the seam region is also disclosed.Type: GrantFiled: October 28, 1999Date of Patent: November 25, 2003Assignee: Xerox CorporationInventors: Robert C. U. Yu, Satchidanand Mishra, Richard L. Post, Anthony M. Horgan, Bing R. Hsieh, Edward F. Grabowski, Donald C. VonHoene, Stephen T. Avery, Scott J. Griffin, Edward A. Domm
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Publication number: 20020008332Abstract: A process for post treatment of an ultrasonically welded seamed flexible imaging member belt includingType: ApplicationFiled: June 26, 2001Publication date: January 24, 2002Applicant: Xerox CorporationInventors: Satchidanand Mishra, Robert C.U. Yu, Anthony M. Horgan, Bing R. Hsieh, Donald C. VonHoene, Edward F. Grabowski, Richard L. Post, Edward A. Domm
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Patent number: 6328922Abstract: A process for post treatment of an imaging member belt including providing a support member having a smooth flat surface, providing a flexible belt having a welded seam, supporting the inner surface of the seam on the smooth flat surface, contacting the seam with a heated surface, heating the seam region with the heated surface to raise the temperature in the seam region to a temperature of from about 2° C. to 20° C. above the Tg of the thermoplastic polymer material, and compressing the seam with the heated surface with sufficient compression pressure to smooth out the seam.Type: GrantFiled: October 28, 1999Date of Patent: December 11, 2001Assignee: Xerox CorporationInventors: Satchidanand Mishra, Robert C. U. Yu, Anthony M. Horgan, Bing R. Hsieh, Donald C. VonHoene, Edward F. Grabowski, Richard L. Post, Edward A. Domm
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Patent number: 6150824Abstract: A contactless process for detecting electrical patterns on the outer surface of a member comprising providing a member having a charge pattern on an outer surface, repetitively measuring the charge pattern on the outer surface of the member with an electrostatic voltmeter probe maintained at a substantially constant distance from the surface, the distance between the probe and the imaging member being slightly greater than the minimum distance at which Paschen breakdown will occur to form a parallel plate capacitor with a gas between the probe and the surface, the frequency of repetition being selected to cause all time dependent signals to fall out of phase by a predetermined amount, and averaging the out of phase time dependent signals over a sufficient number of measuring repetitions to eliminate the time dependent signals. In one embodiment, the contactless process detects surface potential charge patterns in an electrostatographic imaging member.Type: GrantFiled: October 30, 1997Date of Patent: November 21, 2000Assignee: Xerox CorporationInventors: Satchidanand Mishra, Edward A. Domm, Zoran D. Popovic, Denis C. Thomas, Samy A. Mesbah, Dennis J. Prosser, Steven P. Nonkes
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Patent number: 5552005Abstract: A flexible imaging sheet and a method of constructing a flexible imaging sheet is disclosed. The method of constructing a flexible imaging sheet comprises a step of overlapping, a step of joining, and a step of shaping. In the step of overlapping, a first marginal end region and a second marginal end region of a sheet are overlapped to form an overlap region and a non-overlap region. In the step of joining, the first marginal end region and the second marginal end region of the sheet are joined to one another by a seam in the overlap region. In the step of shaping, the overlap region is shaped to form a generally planar surface co-planar with a surface of the non-overlap region. The flexible imaging sheet comprises a first marginal end region and a second marginal end region The first marginal end region and the second marginal end region are secured by a seam to one another in the overlap region.Type: GrantFiled: December 27, 1991Date of Patent: September 3, 1996Assignee: Xerox CorporationInventors: Joseph Mammino, Satchidanand Mishra, Shyshung S. Hwang, Edward A. Domm
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Patent number: 5324942Abstract: The present invention is an apparatus for tuning or altering the charge potential limiting effect that a scorotron grid has upon an adjacent charge receiving surface. The scorotron charging apparatus utilizes corona producing means, spaced above the charge retentive surface, for emitting corona ions in response to a high voltage potential applied thereto, and a flexible grid, suspended between said corona producing means and the charge retentive surface in a nonplanar fashion, such that the spacing between said grid and the charge retentive surface is variable along at least one region of said grid.Type: GrantFiled: December 17, 1992Date of Patent: June 28, 1994Assignee: Xerox CorporationInventors: Satchidanand Mishra, Edward A. Domm, Denis C. Thomas
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Patent number: 5300986Abstract: The present invention is a charging apparatus capable of electrically tuning or altering, on a relatively local scale, the corona ion current passing between a corona producing device and a charge retentive surface. The charging apparatus, which may be either a corotron or a scorotron, is specifically adapted to apply a uniform charge to a charge retentive surface which characteristically exhibits non-uniform charging behavior. More specifically, the charging apparatus comprises corona producing devices, spaced apart from the charge retentive surface, for emitting a corona ion current, and device, responsive to a bias voltage, for locally altering the corona ion current passing between said corona producing device and the charge retentive surface.Type: GrantFiled: December 17, 1992Date of Patent: April 5, 1994Assignee: Xerox CorporationInventors: Satchidanand Mishra, Edward A. Domm, Denis C. Thomas
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Patent number: 5175503Abstract: A process for ascertaining the projected imaging cycle life of an electrophotographic imaging member including the steps of(a) providing at least one electrophotographic imaging member having a cycling life of a known number of imaging cycles, the imaging member comprising an electrically conductive layer and at least one photoconductive layer,(b) repeatedly subjecting the electrophotographic imaging member to cycles comprising electrostatic charging and light discharging steps,(c) measuring dark decay of the photoconductive layer during cycling until the amount of dark decay reaches a crest value,(d) establishing with the crest value a reference datum for dark decay crest value versus imaging cycles,(e) repeatedly subjecting a virgin electrophotographic imaging member to aforesaid cycles comprising electrostatic charging and light discharging steps until the amount of dark decay reaches a crest value which remains substantially constant during further cycling, and(f) comparing the dark decay crest value of tType: GrantFiled: December 28, 1990Date of Patent: December 29, 1992Assignee: Xerox CorporationInventors: Satchidanand Mishra, Edward A. Domm
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Patent number: 5132627Abstract: A process is disclosed for ascertaining electrical discharge properties of an electrophotographic imaging member including the steps of (a) providing at least one electrophotographic imaging member comprising an electrically conductive layer and at least one photoconductive layer, (b) contacting the surface of the electrophotographic imaging member with a substantially transparent electrode and applying an electric potential or an electric current to form an electric field across the photoconductive layer, (c) terminating the applying of the electric potential or the electric current, (d) exposing the photoconductive layer to activating radiation to discharge the electrophotographic imaging member, (e) repeating steps (b), (c) and (d), and (f) measuring the potential across the photoconductive layer during steps (b), (c) and (d) as a function of time by means of an electrostatic meter coupled to the electrode.Type: GrantFiled: December 28, 1990Date of Patent: July 21, 1992Assignee: Xerox CorporationInventors: Zoran D. Popovic, Damodar M. Pai, Merlin E. Scharfe, Satchidanand Mishra, Edward A. Domm