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).
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Patent number: 10442219Abstract: 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: GrantFiled: January 16, 2018Date of Patent: October 15, 2019Assignee: Xerox CorporationInventors: Joseph M. Ferrara, Jr., Stephen B. Williams
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Publication number: 20190217637Abstract: 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: ApplicationFiled: January 16, 2018Publication date: July 18, 2019Inventors: Joseph M. Ferrara, JR., Stephen B. Williams
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Patent number: 10052898Abstract: 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: GrantFiled: June 1, 2017Date of Patent: August 21, 2018Assignee: Xerox CorporationInventors: Stephen B. Williams, Joseph M. Ferrara, Jr., Annie Liu
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Patent number: 8655249Abstract: 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: GrantFiled: January 20, 2011Date of Patent: February 18, 2014Assignee: Xerox CorporationInventors: Augusto E. Barton, Paul M. Fromm, William A. Burton, Stephen B. Williams, Brian J. Dunham
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Publication number: 20120189969Abstract: 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: ApplicationFiled: January 20, 2011Publication date: July 26, 2012Applicant: XEROX CORPORATIONInventors: Augusto E. BARTON, Paul M. Fromm, William A. Burton, Stephen B. Williams, Brian J. Dunham
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Patent number: 8022335Abstract: 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 prType: GrantFiled: December 12, 2006Date of Patent: September 20, 2011Assignee: Xerox CorporationInventors: William A Burton, Lawrence A Clark, Paul M Fromm, Melissa A Monahan, Steven M Russel, Stephen B Williams, Brendan H Williamson
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Patent number: 7962081Abstract: 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: GrantFiled: September 30, 2008Date of Patent: June 14, 2011Assignee: Xerox CorporationInventors: Steven M Russel, Stephen B Williams, Richard E Eisemann
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Publication number: 20100080633Abstract: 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: ApplicationFiled: September 30, 2008Publication date: April 1, 2010Applicant: XEROX CORPORATIONInventors: Steven M. Russel, Stephen B. Williams, Richard E. Eisemann
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Publication number: 20080138102Abstract: 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 prType: ApplicationFiled: December 12, 2006Publication date: June 12, 2008Applicant: XEROX CORPORATIONInventors: William A. Burton, Lawrence A. Clark, Paul M. Fromm, Melissa A. Monahan, Steven M. Russel, Stephen B. Williams, Brendan H. Williamson
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Publication number: 20040258105Abstract: 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: ApplicationFiled: June 19, 2003Publication date: December 23, 2004Inventors: Matthew T. Spathas, Stephen B. Williams
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Patent number: 6609708Abstract: 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: GrantFiled: March 26, 2002Date of Patent: August 26, 2003Assignee: Xerox CorporationInventors: Kenneth P. Moore, William R. Haag, Michael J. Linder, Stephen B. Williams
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Publication number: 20020140157Abstract: 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: ApplicationFiled: March 26, 2002Publication date: October 3, 2002Applicant: Xerox CorporationInventors: Kenneth P. Moore, William R. Haag, Michael J. Linder, Stephen B. Williams
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Patent number: 6247695Abstract: 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: GrantFiled: December 23, 1998Date of Patent: June 19, 2001Assignee: Xerox CorporationInventors: Michael J. Linder, William R. Haag, Kenneth P. Moore, Stephen B. Williams
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Patent number: 5790933Abstract: 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: GrantFiled: November 27, 1996Date of Patent: August 4, 1998Assignee: Xerox CorporationInventor: Stephen B. Williams
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Patent number: 5014977Abstract: 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: GrantFiled: May 3, 1990Date of Patent: May 14, 1991Assignee: Xerox CorporationInventors: Kenneth P. Moore, Brian R. Ford, Stephen B. Williams