Patents Assigned to Roll Systems, Inc.
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Patent number: 6279807Abstract: A system and method for utilizing web that is free of tractor pin feed holes comprises the driving of the web along a predetermined path within the utilization device. A web guide is provided in an upstream location from a utilization device element. The guide engages width-wise edges of the web and forms the web into a trough to stiffen the web. A drive roller and a follower roller impinge upon opposing sides of the web and rotate to drive the web through the guide. The drive roller is located adjacent to the guide according to a preferred embodiment. A registration controller is utilized to synchronize the movement of the web with the operation of the utilization device element. The controller includes a drive controller that controls the speed of either the drive roller or the utilization device element to maintain the web and the utilization device element in appropriate synchronization.Type: GrantFiled: October 18, 1999Date of Patent: August 28, 2001Assignee: Roll Systems, Inc.Inventors: H. W. Crowley, Barry M. Jackson, William F. Bolza
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Patent number: 6243617Abstract: A system and method for incorporating, in the production of a continuous stream of images, by an image transfer device upon a moving web, post-production operations upon the web at various locations. Locations of a web, having a plurality of images placed thereon, output from an image transfer device are tracked. Specific operations at various locations upon the web are performed by a post-production device as the web passes through it. The web is directed from the image transfer device to the post-production device. In response to the tracking of locations upon the web, the point when a location has entered the post-production device is determined. In response to this determination, the post-production device is commanded to perform its specific operation at a connect location.Type: GrantFiled: August 17, 1998Date of Patent: June 5, 2001Assignee: Roll Systems, Inc.Inventor: H. W. Crowley
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Patent number: 6237828Abstract: The invention is a stapler and staple guide assembly for same. The stapler provides automated stapling for stacks of sheet material regardless of stack thickness. In a first embodiment two staple guides load individual sheets or small stacks of sheets onto a staple with the staple supported in a base. The staple is then cut to an appropriate height and cinched. In another embodiment, numerous split guides may be cascaded to increase staple loading speed. Other improvements to a stapling process include dimpling sheets of material and/or pre-drilling sheets of material to simplify loading sheets onto a staple.Type: GrantFiled: October 27, 1998Date of Patent: May 29, 2001Assignee: Roll Systems, Inc.Inventor: H. W. Crowley
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Patent number: 6170855Abstract: A web roll cart for loading, unloading, and transporting rolls of web material wherein a handle may be pivoted between two different orientations, regardless of the presence of a roll of web material thereon. The two handle orientations permit the cart to be steered from either of two sides, and further permits a roll of web material to be presented to a web handling device in either of two orientations. A locking mechanism is provided so that the handle may be locked securely in either orientation while the cart is being steered. In a preferred embodiment, the web roll cart further includes four wheels, with two of the four wheels on casters for steering, and a v-shaped bed for receiving a roll of web material.Type: GrantFiled: October 8, 1998Date of Patent: January 9, 2001Assignee: Roll Systems, Inc.Inventor: Peter E. Bianchetto
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Patent number: 6120043Abstract: A system for stacking continuous folded forms or web coming from a folder and separator and moving to a conveyor. A table is positioned adjacent and in line with the conveyor and in a position for receiving a horizontally-extending stack of folded forms disposed on the table top. The table is a tiltable table and is able to be tilted from a substantially-horizontal position to a substantially-vertical position to likewise move the stack from a horizontal to a vertical stack position. A cart is movable to a position adjacent to the tilted table for receiving from the table the vertical stack for support on the cart. The cart can include a plurality of storage locations that can each be provided with a stack.Type: GrantFiled: July 16, 1998Date of Patent: September 19, 2000Assignee: Roll Systems, Inc.Inventors: H. W. Crowley, John W. Clifford, Peter Bianchetto
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Patent number: 6113344Abstract: A method and apparatus for sorting books of sheets in which individual books are generated in succession is provided. This process entails the stacking of cut sheets that form a completed book in an offset arrangement relative to adjacent books. Each offset stacked book is removed from the other books by applying a lifting force between the lowest book in the stack and the next book in the stack while the lowest book in the stack is allowed to bend away from the next highest book in the stack. The bend forms a space, tunnel or separator entrance opportunity into which a projection or other separator structure is directed. The lowest book is lowered onto a conveyor and moved away from the stack. The process continues for each successive next-highest book in the stack. A support mechanism is provided to maintain the lowest book at a selected elevation as the projection moves inwardly. The support moves away concurrently to deposit the lowest book on the conveyor.Type: GrantFiled: December 1, 1999Date of Patent: September 5, 2000Assignee: Roll Systems, Inc.Inventor: H. W. Crowley
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Patent number: 6095391Abstract: A method and apparatus is presented for stabilizing a free loop of web material between two web handling devices. The present invention employs fans or other forced air sources, directed toward the inner surface of the free loop, to maintain a stable free loop shape, thereby permitting simplified web handling and more accurate control of the web feeding or web take-up rate.Type: GrantFiled: August 4, 1998Date of Patent: August 1, 2000Assignee: Roll Systems, Inc.Inventors: John Mayo Fiske, John Fairhurst, Stephen E. Silva, Bruce Taylor
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Patent number: 6056180Abstract: A system and method for utilizing web that is free of tractor pin feed holes comprises the driving of the web along a predetermined path within the utilization device. A web guide is provided in an upstream location from a utilization device element. The guide engages width-wise edges of the web and forms the web into a trough to stiffen the web. A drive roller and a follower roller impinge upon opposing sides of the web and rotate to drive the web through the guide. The drive roller is located adjacent to the guide according to a preferred embodiment. A registration controller is utilized to synchronize the movement of the web with the operation of the utilization device element. The controller includes a drive controller that controls the speed of either the drive roller or the utilization device element to maintain the web and the utilization device element in appropriate synchronization.Type: GrantFiled: February 2, 1999Date of Patent: May 2, 2000Assignee: Roll Systems, Inc.Inventors: H. W. Crowley, James P. Zamanakos, Barry M. Jackson, William F. Bolza
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Patent number: 6027298Abstract: A system for stacking continuous folded forms or web coming from a folder and separator and moving to a conveyor. A table is positioned adjacent and in line with the conveyor and in a position for receiving a horizontally-extending stack of folded forms disposed on the table top. The table is a tiltable table and is able to be tilted from a substantially-horizontal position to a substantially-vertical position to likewise move the stack from a horizontal to a vertical stack position. A cart is movable to a position adjacent to the tilted table for receiving from the table the vertical stack for support on the cart. The cart can include a plurality of storage locations that can each be provided with a stack.Type: GrantFiled: August 7, 1997Date of Patent: February 22, 2000Assignee: Roll Systems, Inc.Inventor: H. W. Crowley
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Patent number: 6022186Abstract: A method and apparatus for sorting books of sheets in which individual books are generated in succession is provided. This process entails the stacking of cut sheets that form a completed book in an offset arrangement relative to adjacent books. Each offset stacked book is removed from the other books by applying a lifting force between the lowest book in the stack and the next book in the stack while the lowest book in the stack is allowed to bend away from the next highest book in the stack. The bend forms a space, tunnel or separator entrance opportunity into which a projection or other separator structure is directed. The lowest book is lowered onto a conveyor and moved away from the stack. The process continues for each successive next-highest book in the stack. A support mechanism is provided to maintain the lowest book at a selected elevation as the projection moves inwardly. The support moves away concurrently to deposit the lowest book on the conveyor.Type: GrantFiled: September 25, 1997Date of Patent: February 8, 2000Assignee: Roll Systems, Inc.Inventor: H. W. Crowley
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Patent number: 6000595Abstract: A system and method for utilizing a continuous pinless web that is free of tractor pin feed holes within a utilization device that is originally adapted to feed web having tractor pin feed hole strips along its widthwise edges is provided. The utilization device can comprise an IBM high-volume laser printer having an image transfer drum synchronized to a pair of tractor pin feed drive units. A drive roller is operatively connected to the lower pin feed unit according to a preferred embodiment. A registration controller is utilized to synchronize the movement of the web with the operation of the utilization device element using a differential and a separate registration motor. The image transfer drum and drive roller are each synchronized to a central drive motor that generates pulses via an encoder. The pulses track the movement of the image transfer drum. A mark sensor reads marks on the web to synchronize actual movement of the web with the image transfer drum using the registration motor.Type: GrantFiled: December 17, 1997Date of Patent: December 14, 1999Assignee: Roll Systems, Inc.Inventors: H. W. Crowley, John W. Clifford, William F. Bolza, Tamas Hetenyi, Richard A. Sjostedt
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Patent number: 5979732Abstract: A system and method for utilizing web that is free of tractor pin feed holes comprises the driving of the web along a predetermined path within the utilization device. A web guide is provided in an upstream location from a utilization device element. The guide engages width-wise edges of the web and forms the web into a trough to stiffen the web. A drive roller and a follower roller impinge upon opposing sides of the web and rotate to drive the web through the guide. The drive roller is located adjacent to the guide according to a preferred embodiment. A registration controller is utilized to synchronize the movement of the web with the operation of the utilization device element. The controller includes a drive controller that controls the speed of either the drive roller or the utilization device element to maintain the web and the utilization device element in appropriate synchronization.Type: GrantFiled: October 18, 1996Date of Patent: November 9, 1999Assignee: Roll Systems, Inc.Inventors: H. W. Crowley, James P. Zamanakos, Barry M. Jackson, William F. Bolza
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Patent number: 5967394Abstract: A system and method for utilizing web that is free of tractor pin feed holes comprises the driving of the web along a predetermined path within the utilization device. A web guide is provided in an upstream location from a utilization device element. The guide engages width-wise edges of the web and forms the web into a trough to stiffen the web. A drive roller and a follower roller impinge upon opposing sides of the web and rotate to drive the web through the guide. The drive roller is located adjacent to the guide according to a preferred embodiment. A registration controller is utilized to synchronize the movement of the web with the operation of the utilization device element. The controller includes a drive controller that controls the speed of either the drive roller or the utilization device element to maintain the web and the utilization device element in appropriate synchronization.Type: GrantFiled: April 12, 1996Date of Patent: October 19, 1999Assignee: Roll Systems, Inc.Inventors: H. W. Crowley, Barry M. Jackson, William F. Bolza
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Patent number: 5820007Abstract: A system for utilizing web that is free of tractor pin feed holes comprises the driving of the web along a predetermined path within the utilization device. A web guide is provided in an upstream location from a utilization device element. The guide engages width-wise edges of the web and forms the web into a trough to stiffen the web. A drive roller and a follower roller impinge upon opposing sides of the web and rotate to drive the web through the guide. The drive roller is located adjacent to the guide according to a preferred embodiment. A registration controller is utilized to synchronize the movement of the web with the operation of the utilization device element. The controller includes a drive controller that controls the speed of either the drive roller or the utilization device element to maintain the web and the utilization device element in appropriate synchronization.Type: GrantFiled: March 12, 1997Date of Patent: October 13, 1998Assignee: Roll Systems, Inc.Inventor: H. W. Crowley
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System for incorporation of post-production operations to a web output from an image transfer device
Patent number: 5794830Abstract: A system and method for incorporating, in the production of a continuous stream of images, by an image transfer device upon a moving web, post-production operations upon the web at various locations. Locations of a web, having a plurality of images placed thereon, output from an image transfer device are tracked. Specific operations at various locations upon the web are performed by a post-production device as the web passes through it. The web is directed from the image transfer device to the post-production device. In response to the tracking of locations upon the web, the point when a location has entered the post-production device is determined. In response to this determination, the post-production device is commanded to perform its specific operation at a connect location.Type: GrantFiled: June 7, 1995Date of Patent: August 18, 1998Assignee: Roll Systems, Inc.Inventor: H. W. Crowley -
Patent number: 5751298Abstract: A unique system and method for directly feeding sheets into a printing device having a moving image conducting element with a plurality of images placed thereon for transfer to sheet paper and having a wait station for controlling the timing of paper transfer to the image conducting element provides a feeding table to transfer sheets from a source to a printer stack deshingler while bypassing and, thus, eliminating any need for sheet stacks. The movement of each sheet by the wait station into the image transfer element signals the cutting of a sheet from a roll of continuous web on the input side of the feeding table. Once the sheet has moved into the image transfer element the absence of a sheet at the detector signals transfer by the feeding table of the cut sheet to the stack deshingler. Simultaneously, a source of web presents and end of the web representing another sheet to a cutting unit. This sheet is cut when the current sheet at the wait station begins movement into the image transfer element.Type: GrantFiled: June 7, 1995Date of Patent: May 12, 1998Assignee: Roll Systems, Inc.Inventor: H. W. Crowley
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Patent number: 5692999Abstract: A system for stacking continuous folded forms or web coming from a folder and separator and moving to a conveyor. A table is positioned adjacent and in line with the conveyor and in a position for receiving a horizontally-extending stack of folded forms disposed on the table top. The table is a tiltable table and is able to be tilted from a substantially-horizontal position to a substantially-vertical position to likewise move the stack from a horizontal to a vertical stack position. A cart is movable to a position adjacent to the tilted table for receiving from the table the vertical stack for support on the cart. The cart can include a plurality of storage locations that can each be provided with a stack.Type: GrantFiled: April 29, 1994Date of Patent: December 2, 1997Assignee: Roll Systems, Inc.Inventors: H. W. Crowley, John W. Clifford, Peter Bianchetto
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Patent number: 5692746Abstract: A sheet justifier provides a table having at least one rotational surface thereon that is substantially aligned with the table. A sheet is input to the table into contact with the rotational surface. A weighted ball is positioned over the rotating surface proximate an outer edge of the rotating surface. The sheet is grasped between the ball and the rotating surface and forced against a raised guide edge. Once the sheet is forced against the guide edge, all rotational driving force is translated in a downstream direction there along so that the sheet is driven out of the guide edge with its edge aligned therewith in a justified orientation. A rotator can be provided to the sheet justifier according to this invention. The rotator can include one or more weighted balls that engage a rotating surface at points remote from an axis of rotation of the rotating surface and rotate a corner of the sheet 90.degree. as the corner passes through a gap between an upstream and a downstream portion of an edge guide.Type: GrantFiled: August 8, 1995Date of Patent: December 2, 1997Assignee: Roll Systems, Inc.Inventor: Robert F. Herrick, Jr.
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Patent number: 5653438Abstract: A high speed sheet feeder for use with utilization devices that process sheets comprises a source of sheets, that can include a web cutter and a transport unit having a surface along which the sheets travel in a downstream direction. The surface can include a pair of conveyors that act as sheet justifiers and have at downstream ends thereof wait stations that can comprise pairs of nip rollers. Sheets are halted at each wait station and simultaneously passed along the surface as a sheet request signal is received from the utilization device. The transport unit can further include a bump/turn module that receives sheets from the conveyors and passes them at 90.degree. angle to their initial direction of travel into the utilization device via a port in the utilization device adapted to feed sheets upon request.Type: GrantFiled: January 26, 1995Date of Patent: August 5, 1997Assignee: Roll Systems, Inc.Inventors: H. W. Crowley, John W. Clifford, William F. Bolza
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Patent number: RE35844Abstract: A trough structure is provided for bending a web of paper widthwise to provide beam strength and controllability to the web of paper, for aiding in guiding the web of paper in a straight path. The trough structure causes the paper to curl widthwise to conform with the shape of the trough structure. The trough structure comprises a concave or convex lower wall upon which the paper flows, open ends through which the paper flows, and shoulders which attach to both sides of the lower wall and extend substantially horizontally from the sides of the lower wall to symmetrical positions above the lower wall. The shoulders act to contain the paper in the trough structure and guide the paper through the trough structure. A drive roll is provided for driving the paper through the trough structure. No buckling of the paper is caused when any slight misalignment occurs between the paper and the drive roll, and this slight misalignment is self-correcting due to the edge guiding function of the trough structure.Type: GrantFiled: May 24, 1995Date of Patent: July 14, 1998Assignee: Roll Systems, Inc.Inventor: H. W. Crowley