Patents by Inventor Stephen B. Williams

Stephen B. Williams 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: 10442219
    Abstract: Systems, methods, and devices for mitigating print head dry out. In an example embodiment, a system can be implemented, which includes an arrangement of cross rollers and a registration transport for transporting one or more sheets for printing, and a steering mechanism that drives the sheet(s) into the opposing registration print edges of print heads on the registration transportation, wherein the cross rollers only engage when the sheet is being registered to the appropriate edge of the print heads, thereby allowing the print heads to be exercised prior to drying out. When one or more of the sheets are out of the nip, the nip disengages, thereby allowing the next sheet to be stirred on the opposing edge of the registration print heads. The opposing registration print heads comprise an inboard registration edge and an outboard registration edge.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: October 15, 2019
    Assignee: Xerox Corporation
    Inventors: Joseph M. Ferrara, Jr., Stephen B. Williams
  • Publication number: 20190217637
    Abstract: Systems, methods, and devices for mitigating print head dry out. In an example embodiment, a system can be implemented, which includes an arrangement of cross rollers and a registration transport for transporting one or more sheets for printing, and a steering mechanism that drives the sheet(s) into the opposing registration print edges of print heads on the registration transportation, wherein the cross rollers only engage when the sheet is being registered to the appropriate edge of the print heads, thereby allowing the print heads to be exercised prior to drying out. When one or more of the sheets are out of the nip, the nip disengages, thereby allowing the next sheet to be stirred on the opposing edge of the registration print heads. The opposing registration print heads comprise an inboard registration edge and an outboard registration edge.
    Type: Application
    Filed: January 16, 2018
    Publication date: July 18, 2019
    Inventors: Joseph M. Ferrara, JR., Stephen B. Williams
  • Patent number: 10052898
    Abstract: A locating pin that is configured to be connected to a dockable member in a printer includes a shaft, first and second ends, and a conical member. The first end has a surface forming a partial ellipsoid and the conical member has a base aligned with the surface of the first end and a tip extending from the surface of the first end. The shaft is configured to engage the dockable member along a portion of the shaft between the second end and the first end.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: August 21, 2018
    Assignee: Xerox Corporation
    Inventors: Stephen B. Williams, Joseph M. Ferrara, Jr., Annie Liu
  • Patent number: 8655249
    Abstract: A belt-roll fuser system includes a belt-roll fuser module that is movable to engage and disengage to a main frame of the belt-roll fuser system. The belt-roll fuser has an internal pressure member that defines a fusing nip with an external pressure member of the main frame when the belt-roll fuser module is engaged. The belt-roll fuser module is movable by a latch, and when engaged, a nip load path crosses through a point at which the latch attaches to the belt-roll fuser module.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: February 18, 2014
    Assignee: Xerox Corporation
    Inventors: Augusto E. Barton, Paul M. Fromm, William A. Burton, Stephen B. Williams, Brian J. Dunham
  • Publication number: 20120189969
    Abstract: A belt-roll fuser system includes a belt-roll fuser module that is movable to engage and disengage to a main frame of the belt-roll fuser system. The belt-roll fuser has an internal pressure member that defines a fusing nip with an external pressure member of the main frame when the belt-roll fuser module is engaged. The belt-roll fuser module is movable by a latch, and when engaged, a nip load path crosses through a point at which the latch attaches to the belt-roll fuser module.
    Type: Application
    Filed: January 20, 2011
    Publication date: July 26, 2012
    Applicant: XEROX CORPORATION
    Inventors: Augusto E. BARTON, Paul M. Fromm, William A. Burton, Stephen B. Williams, Brian J. Dunham
  • Patent number: 8022335
    Abstract: A rapid warm-up and cool-down pressure roll assembly is provided and includes (a) a rotatable pressure roll including a cylindrical sleeve having an outer surface, and an inner surface defining a hollow interior to the rotatable pressure roll; (b) a thermoelectric assembly sheet positioned within the hollow interior and having a first substrate facing the inner surface of the cylindrical sleeve, a second substrate, an electric current flow path therethrough, and electric current input and output terminals associated with the electric current flow path; and (c) an electric current input switching device connected to the electric current input and output terminals for enabling selective reversing of a direction of electric current flow through the electric current flow path, thereby reversing which of the first substrate and the second substrate of the thermoelectric assembly sheet is hot and which is cold, and therefore selectively enabling a rapid warm-up or rapid cool-down of the cylindrical sleeve of the pr
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: September 20, 2011
    Assignee: Xerox Corporation
    Inventors: William A Burton, Lawrence A Clark, Paul M Fromm, Melissa A Monahan, Steven M Russel, Stephen B Williams, Brendan H Williamson
  • Patent number: 7962081
    Abstract: There is disclosed an improved fuser cleaning system in which a strip of flexible material, including first second and third portions, is fed from a source roll to a take-up roll in such a manner that a fuser roll is cleaned or oiled. A first detectable mark may be disposed on a side of the strip of flexible material in one of the first and second portions. During operation of the fuser cleaning system, the third portion is taken up by the take-up roll and when an amount of the third portion is taken up by the take-up roll, the first detectable mark is detected by a sensor and a signal, indicating that the amount of the third portion has been taken up by the take-up roll, is transmitted to a controller. A second detectable mark may be disposed on the side of the strip of flexible material.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: June 14, 2011
    Assignee: Xerox Corporation
    Inventors: Steven M Russel, Stephen B Williams, Richard E Eisemann
  • Publication number: 20100080633
    Abstract: There is disclosed an improved fuser cleaning system in which a strip of flexible material, including first second and third portions, is fed from a source roll to a take-up roll in such a manner that a fuser roll is cleaned or oiled. A first detectable mark may be disposed on a side of the strip of flexible material in one of the first and second portions. During operation of the fuser cleaning system, the third portion is taken up by the take-up roll and when an amount of the third portion is taken up by the take-up roll, the first detectable mark is detected by a sensor and a signal, indicating that the amount of the third portion has been taken up by the take-up roll, is transmitted to a controller. A second detectable mark may be disposed on the side of the strip of flexible material.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 1, 2010
    Applicant: XEROX CORPORATION
    Inventors: Steven M. Russel, Stephen B. Williams, Richard E. Eisemann
  • Publication number: 20080138102
    Abstract: A rapid warm-up and cool-down pressure roll assembly is provided and includes (a) a rotatable pressure roll including a cylindrical sleeve having an outer surface, and an inner surface defining a hollow interior to the rotatable pressure roll; (b) a thermoelectric assembly sheet positioned within the hollow interior and having a first substrate facing the inner surface of the cylindrical sleeve, a second substrate, an electric current flow path therethrough, and electric current input and output terminals associated with the electric current flow path; and (c) an electric current input switching device connected to the electric current input and output terminals for enabling selective reversing of a direction of electric current flow through the electric current flow path, thereby reversing which of the first substrate and the second substrate of the thermoelectric assembly sheet is hot and which is cold, and therefore selectively enabling a rapid warm-up or rapid cool-down of the cylindrical sleeve of the pr
    Type: Application
    Filed: December 12, 2006
    Publication date: June 12, 2008
    Applicant: XEROX CORPORATION
    Inventors: William A. Burton, Lawrence A. Clark, Paul M. Fromm, Melissa A. Monahan, Steven M. Russel, Stephen B. Williams, Brendan H. Williamson
  • Publication number: 20040258105
    Abstract: A high speed, fiber optics communications network provides network connectivity throughout a multi-tenant building or facility and is integrated with other building systems. Network management and maintenance are automated and centralized in a network manager. Network bandwidth needs of the building are aggregated and delivered to building tenants as needed. Wireless LAN access points are coupled to the network to provide wireless network access throughout the building.
    Type: Application
    Filed: June 19, 2003
    Publication date: December 23, 2004
    Inventors: Matthew T. Spathas, Stephen B. Williams
  • Patent number: 6609708
    Abstract: A feed apparatus which combines a slider crank feed head drive system and cam actuated stack height sensing system to form a new combined shuttle feeder. The new feed head drive includes the replacement of a solenoid driven feed head with a more reliable stepper driven twin slider crank drive. Included in the slider crank drive for the feed head is an integral cam as part of the crank arm mounted to the motor shaft. This cam is designed drives a stack height sensor to drop and lift the stack height sensing arm to sense stack height after the sheet trail edge has passed the point of arm contact with the stack. The cam also provides a “service mode” position for the stack height arm which lifts it out of the way of the paper supply when it is opening. The cam dwells in a neutral home position during the rest of the drive out and return motion of the feed head.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: August 26, 2003
    Assignee: Xerox Corporation
    Inventors: Kenneth P. Moore, William R. Haag, Michael J. Linder, Stephen B. Williams
  • Publication number: 20020140157
    Abstract: A feed apparatus which combines a slider crank feed head drive system and cam actuated stack height sensing system to form a new combined shuttle feeder. The new feed head drive includes the replacement of a solenoid driven feed head with a more reliable stepper driven twin slider crank drive. Included in the slider crank drive for the feed head is an integral cam as part of the crank arm mounted to the motor shaft. This cam is designed drives a stack height sensor to drop and lift the stack height sensing arm to sense stack height after the sheet trail edge has passed the point of arm contact with the stack. The cam also provides a “service mode” position for the stack height arm which lifts it out of the way of the paper supply when it is opening.
    Type: Application
    Filed: March 26, 2002
    Publication date: October 3, 2002
    Applicant: Xerox Corporation
    Inventors: Kenneth P. Moore, William R. Haag, Michael J. Linder, Stephen B. Williams
  • Patent number: 6247695
    Abstract: A stack height assembly consisting of two transmissive sensors and two flags, the stack height of a feeder module can be set to three different levels depending on the weight of the media. This “optimization” of the stack height to address the media's failure mode results in increased latitude. When feeding lightweight media, the stack height is set larger in order to increase the gap to the feedhead. This allows more room for separation of the media using fluffer jets. This increased gap also reduces the chances that the un-acquired media will be fluffed into contact with the acquisition surface and subsequently be shingle fed into the take away roll due to the friction between sheets. When feeding heavyweight media the stack height will be set smaller. This reduces the gap to the feedhead and reduces the time required to acquire.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: June 19, 2001
    Assignee: Xerox Corporation
    Inventors: Michael J. Linder, William R. Haag, Kenneth P. Moore, Stephen B. Williams
  • Patent number: 5790933
    Abstract: A media tray lifting mechanism for use with a driving mechanism to present sheet media for processing in a printing machine is provided. The mechanism includes a tray for supporting the sheet media and a cable affixed in at least three spaced apart positions to the tray to form cable connections. The mechanism also includes a plurality of support pulleys affixed to the printing machine and movably attached to the cable for supporting the cable within the machine. At least two of the support pulleys is associated with each of the cable connections to form pulley sets. At least one of the support pulleys within each pulley set subtends another pulley within the pulley set to provide a substantially vertical section of the cable between the pulleys. An adjustment pulley is movably secured to the printing machine and is movably attached to the cable. The adjustment pulley is positioned between adjacent sets of pulley sets.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: August 4, 1998
    Assignee: Xerox Corporation
    Inventor: Stephen B. Williams
  • Patent number: 5014977
    Abstract: An integral sheet stopping, stacking and lateral registration system, in which sequential incoming sheets are fed into a tray and stopped at an edge registration position and also repositioned laterally by lateral sheet repositioning scuffers engaging an edge of the sheets at the edge registration position, with improved protection against sheet edge distortion or damage provided by movable partial sheet stopping surfaces partially shielding the incoming sheet lead edge from full impact with the lateral scuffers but without interfering with the subsequent lateral movement of the sheets by the lateral scuffers. The incoming sheets are fed in and stacked under a stack-floating curved input guide baffle and floating frictional input flapper scuffers feeding and holding an incoming sheet downstream against the lateral scuffers for improved lateral registration.
    Type: Grant
    Filed: May 3, 1990
    Date of Patent: May 14, 1991
    Assignee: Xerox Corporation
    Inventors: Kenneth P. Moore, Brian R. Ford, Stephen B. Williams