Intermittently Or Interruptedly Patents (Class 226/8)
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Patent number: 11590690Abstract: A printer unit (100) for a 3D-printing apparatus. The printer unit comprises a printer head (105) comprising a nozzle (110) arranged to deposit printing material from the printer unit, a pressure sensor (120) configured to sense a pressure exerted on the printer head from the printing material, and a control unit (130) coupled to the pressure sensor. The control unit is configured to control the speed of the printer head based on a transfer function from the pressure sensed by the pressure sensor to a desired speed of the printer head, in order to maintain a constant deposition of the amount of printing material per length unit of deposited printing material.Type: GrantFiled: October 2, 2018Date of Patent: February 28, 2023Assignee: SIGNIFY HOLDING B.V.Inventors: Hans Kroes, Hendrik Jan Kettelarij, Peter Tjin Sjoe Kong Tsang
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Patent number: 11007719Abstract: An extruder for automatically adjusting a temperature for optimal viscosity of materials extruded through a three-dimensional printer. The extruder includes a nozzle configured to extrude a material at a set viscosity; a thermal regulator located adjacent to the nozzle through which the material is extruded, where a temperature of the thermal regulator is adjustable within a predetermined range of temperatures suitable for the material; a motor configured to advance the material through the thermal regulator and the nozzle; a motion sensor configured to detect a speed of the motor as the material passes through the extruder; a current sensor configured to detect a resistance operating against the motor as the material passes through the extruder; and a controller configured to adjust the temperature of the thermal regulator for optimal viscosity of the material based on the detected speed of the motor and the detected resistance operating against the motor.Type: GrantFiled: April 11, 2018Date of Patent: May 18, 2021Assignee: Wine Projects Ltd.Inventors: Shay Eyal, Dima Lokshin, Michael Roginsky
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Patent number: 9238330Abstract: An additive three-dimensional fabrication process is improved by controlling deposition rate to obtain surface textures or other surface features below the nominal processing resolution of fabrication hardware. Sub-resolution information may be obtained, for example, from express metadata (such as for surface texture), or by interpolating data from a source digital model.Type: GrantFiled: September 3, 2013Date of Patent: January 19, 2016Assignee: MakerBot Industries, LLCInventor: Adam G. Mayer
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Patent number: 8998055Abstract: A dispenser for dispensing paper toweling. The dispenser including a towel support that is positionable in a first dispensing position when a drive roller rotates in a first direction, and that is positionable in a second auto-loading position when the drive roller rotates in a second direction. Rotation of the drive roller in the first and second directions automatically loading the paper toweling for subsequent dispense.Type: GrantFiled: December 28, 2010Date of Patent: April 7, 2015Assignee: Wausau Paper Towel & Tissue, LLCInventors: Mark W. Henson, Adam T. Elliott
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Publication number: 20150069107Abstract: A method for controlling a feeding length of a wire is provided. The wire is frictionally engaged with and fed by a driving wheel mounted on a driver.Type: ApplicationFiled: August 12, 2014Publication date: March 12, 2015Applicants: SHENZHEN SHENGLI JINGJI TECH CO. LTD.,, TYCO ELECTRONICS CORPORATIONInventors: Roberto Francisco-Yi Lu, Qinglong Zeng
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Patent number: 8377249Abstract: Methods and apparatuses discussed herein provide for localized speed changes of an advancing substrate. Embodiments of a localized speed varying apparatus may include first and second substrate guides positioned upstream and downstream of a processing station, respectively. The substrate guides may utilize orbital motion of guide members to change the length of the substrate within the substrate guides upstream and downstream of the processing station. The changes in substrate length within the substrate guides result in localized speed changes of the substrate between the substrate guides. Coordination between the substrate guides allows for localized speed changes of the substrate passing through the processing station without affecting the speed of the substrate upstream of the first substrate guide and downstream of the second substrate guide.Type: GrantFiled: April 3, 2009Date of Patent: February 19, 2013Assignee: The Procter & Gamble CompanyInventor: Nathan Alan Gill
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Publication number: 20120012634Abstract: A printing device includes a first roller for rotatably retaining a roll body where a medium is rolled, a first motor for rotating the first roller, a second roller installed further to the downstream side of the roll body in the feeding direction of the medium to feed the medium in the feeding direction or in a reverse feeding direction which is opposite to the feeding direction corresponding to the rotating direction, a second motor for rotating the second roller, and a controller which causes the medium to become slack the first roller and the second roller by feeding the medium by a predetermined feeding amount in the reverse feeding direction by the second motor, and then rotates the roll body in a winding-up direction by the first motor so that the slackness decreases to calculate the diameter of the roll body based on the rotation amount of the first roller at that time and the predetermined feeding amount.Type: ApplicationFiled: July 14, 2011Publication date: January 19, 2012Applicant: Seiko Epson CorporationInventors: Kenji HATADA, Hitoshi IGARASHI
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Patent number: 8002944Abstract: Disclosed herein is a method by which a material may be placed onto a moving web in a transverse orientation. At least two assemblies, which carry either a first and a second web or a single web, periodically overlap each other in an alternating fashion such that a material may be placed upon their respective carried webs in a transverse manner. The first and second assemblies translate in a direction of web movement in order to modify the velocity of the web carried upon the assembly. Thus, with the velocities of the assemblies capable of being varied, the material may be placed in a transverse manner upon the moving web along with various other orientations.Type: GrantFiled: February 2, 2010Date of Patent: August 23, 2011Assignee: The Procter & Gamble CompanyInventors: Uwe Schneider, Christoph Schmitz
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Publication number: 20110057013Abstract: A paper discharge device and an image forming apparatus include a holding unit 101 which is rotatably mounted to a frame and is configured to hold a recording medium P discharged from an image forming unit 110 in a rolled state. The paper discharge device 100 performs a holding operation before a discharge operation. When the recording medium P is discharged, the paper discharge device 100 allows the holding unit 101 to be rotated to reach the discharge position so that the recording medium P is discharged. When the recording medium P is collected, the paper discharge device 100 allows the recording medium P to be held again within the holding unit 101, and then allows the holding unit 101 to be rotated to reach the collecting position.Type: ApplicationFiled: August 20, 2010Publication date: March 10, 2011Applicant: TOSHIBA TEC KABUSHIKI KAISHAInventor: Kenji Eoka
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Publication number: 20110006096Abstract: Device and method for constant tension feeding, threads or yarns fed to textile or winding machine or metallic wire to similar machine, in discontinuously with phase sequences. The thread motion has at least first and second feeding or absorption states following each other in time. A controller, connected to a tension detector and thread accumulator, intervenes on the accumulator based upon tension value from the detector. A compensator, between the accumulator and tension detector, cooperates with thread to compensate variation of feeding or absorption state of the thread upon passage between each first and second feeding or absorption state. The controller intervenes to modify the accumulator's action on thread and maintain tension value detected by the detector at set value. Interaction between thread and compensator keeping constant tension value during the changing phase of the feeding state. The compensator freely moveable under action of thread relative to a resting position.Type: ApplicationFiled: March 9, 2009Publication date: January 13, 2011Applicant: B.T.S.R. INTERNATIONAL S.p.A.Inventor: Tiziano Barea
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Patent number: 7666271Abstract: Disclosed herein is a method by which a material may be placed onto a moving web in a transverse orientation. At least two assemblies, which carry either a first and a second web or a single web, periodically overlap each other in an alternating fashion such that a material may be placed upon their respective carried webs in a transverse manner. The first and second assemblies translate in a direction of web movement in order to modify the velocity of the web carried upon the assembly. Thus, with the velocities of the assemblies capable of being varied, the material may be placed in a transverse manner upon the moving web along with various other orientations.Type: GrantFiled: February 16, 2007Date of Patent: February 23, 2010Assignee: The Procter & Gamble CompanyInventors: Uwe Schneider, Christoph Schmitz
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Publication number: 20090159631Abstract: A sheet material feeder includes a sheet material web, a vacuum box applying a tension force to a portion of the sheet material web extending into the vacuum box by applying a first vacuum force on the sheet material web, a first drive feeding the sheet material web into the vacuum box, a second drive pulling the sheet material web out of the vacuum box, and a system for applying a braking force to the sheet material web proximate to the vacuum box only during a decelerating movement of the sheet material web at the second drive.Type: ApplicationFiled: December 24, 2007Publication date: June 25, 2009Applicant: Pitney Bowes Inc.Inventors: Arthur H. DePoi, Boris Rozenfeld, Anthony E. Yap
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Patent number: 7337936Abstract: A printing apparatus having a mechanism for transporting continuous paper includes: a frictionally transporting section for frictionally transporting the continuous paper; a paper braking section provided on an upstream side of the frictionally transporting section; a paper-position restricting section constituted by a pair of rollers arranged between the frictionally transporting section and the paper braking section obliquely at a predetermined angle ? with respect to a paper transporting direction; a buffer device provided between the paper-position restricting section and the frictionally transporting section to absorb slack of the paper; and a printing section disposed on a downstream side of the frictionally transporting section.Type: GrantFiled: November 3, 2003Date of Patent: March 4, 2008Assignee: Fuji Xerox Co., Ltd.Inventors: Shigeo Ishida, Masato Matsuduki
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Patent number: 7201822Abstract: Disclosed herein is a method by which a material may be placed onto a moving web in a transverse orientation. At least two assemblies, which carry either a first and a second web or a single web, periodically overlap each other in an alternating fashion such that a material may be placed upon their respective carried webs in a transverse manner. The first and second assemblies translate in a direction of web movement in order to modify the velocity of the web carried upon the assembly. Thus, with the velocities of the assemblies capable of being varied, the material may be placed in a transverse manner upon the moving web along with various other orientations.Type: GrantFiled: February 13, 2004Date of Patent: April 10, 2007Assignee: The Procter & Gamble CompanyInventors: Uwe Schneider, Christoph Schmitz
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Patent number: 6769359Abstract: A paper-web holding apparatus is provided in a rotary printing press having rollers which form a path for a paper web fed from a paper web feeding unit to travel along to a folding unit via a press unit and around which the paper web is wrapped. The paper-web holding apparatus includes a rotation restraint mechanism provided for at least one selected roller, and a propeller roller mechanism provided for the selected roller. The rotation restraint mechanism restrain rotation of the roller when the rotary printing press is halted, and allows rotation of the roller when the rotary printing press is operated. The propeller roller mechanism has a pressing member which is advanced toward the roller in order to apply pressing force to the roller at least when the rotary printing press is in a halt state.Type: GrantFiled: October 4, 2002Date of Patent: August 3, 2004Assignee: Tokyo Kikai Seisakusho, Ltd.Inventors: Nobutaka Ishibashi, Kazuo Yamaguchi, Yoshihiro Iwahashi
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Patent number: 6513427Abstract: A device for guiding material webs (A through D; E through H) via an angle-bar deck (2), including a folding section that is arranged on a plurality of planes (3.1, 3.2, 3.3), from where the material webs (A through D), (E through H) enter folding apparatuses (4), (5). Accommodated on longitudinal folding devices (8), (9) are infeed elements (7), which have guide sections (13), (14) that are-able to be operated independently of one another.Type: GrantFiled: December 1, 2000Date of Patent: February 4, 2003Assignee: Heidelberger Druckmaschinen AGInventor: Jean-Claude Pautrat
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Patent number: 6454150Abstract: A method and device for improving the throughput of a continuous web cutter, which is operated in move-and-pause cycles to allow the web to be cut into cut sheets. To avoid tear and web breakage, the web is fed at a low cycle rate at the starting stage. The cycle rate is progressively increased. When a feed rhythm is developed at the higher cycle rate, a constant cycle rate is maintained for the rest of the web operation.Type: GrantFiled: December 28, 2000Date of Patent: September 24, 2002Assignee: Pitney Bowes Inc.Inventor: Russell W. Holbrook
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Patent number: 6176410Abstract: Drag rollers disposed in a region from the paper feed side to the paper discharge side of a printing machine are driven one after another from the paper feed side with torque control, by which the slack of a web is removed successively from the upstream side of a web delivery running path.Type: GrantFiled: April 19, 1999Date of Patent: January 23, 2001Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Yoshio Ueda, Hitoshi Hirose, Norifumi Tasaka, Masakazu Akatsuka
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Patent number: 6085957Abstract: A volumetric feed control apparatus for a build material element such as a filament used in a three-dimensional modeling machine having an application tip includes a pair of feed rollers feeding the filament to the application tip, and a sensor or sensor system feeding information to a central processing unit that continuously computes the effective cross section of the filament using the signals received from the sensor or sensor system. The central processing unit controls the speed of a DC servo or stepper motor which in turn rotates the feed rollers to advance the filament toward the application tip of the modeling machine. The central processing unit adjusts the speed of the feed rollers to supply a constant flow rate of material to the application tip. Alternatively, the sensor system can be incorporated into the feed rollers, eliminating the need for further space constraints.Type: GrantFiled: April 8, 1996Date of Patent: July 11, 2000Assignee: Stratasys, Inc.Inventors: Robert L. Zinniel, John S. Batchelder
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Patent number: 6026885Abstract: An electronic component feeder is provided for feeding electronic components in their stable position into an electronic component mounting apparatus and allowing the taking up of a top tape with high stability thus increasing the speed of component mounting action. As the top tape (4) is being taken up on a reel (42), a shutter (34) moves backward together with a slit (51) provided integral on the shutter (34). The turning in the tape take-up direction of the reel (42) is driven by the restoring force of a return spring (39). When the reel (42) has completed its take-up motion, the electronic component (1) can be picked up at a component pick-up location with the shutter (34) staying backward. A stationary roller (31) is provided between the slit (51) and the reel (42) and a movable roller (32) is provided for keeping the length of the top tape (4) between the slit (51) and the stationary roller (31) substantially constant.Type: GrantFiled: January 8, 1998Date of Patent: February 22, 2000Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Seiichi Mogi, Wataru Hirai, Kunio Sakurai, Minoru Yamamoto, Youichi Makino, Akiko Ida
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Patent number: 5833105Abstract: Stock material is supplied to a machine press by a coiled material supply apparatus which utilizes a damped follower loop control system for distributing loop reaction among two separate loops so as to reduce coil material slippage and deformation caused by high material acceleration and deceleration forces caused by an intermittent feed device. Coiled material is advanced into a coil straightener section via feed rollers and is then advanced into an intermediate damped follower drive roller section, which advances the stock material toward the intermittent feed device. An electronic controller monitors loop and press positions and generates drive signals for controlling the feed rollers, the damped follower drive rollers and the intermittent feed device to maintain optimum velocity profiles of the coil material stock being advanced at each drive roller section.Type: GrantFiled: October 21, 1997Date of Patent: November 10, 1998Assignee: The Minster Machine CompanyInventor: David M. Stuber
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Patent number: 5813586Abstract: There is provided an apparatus for controlling the infeed speed of a bag making machine. In one embodiment, the nip roll speed is changed from a variable speed to a fixed speed after a cycle interrupt occurs. Once a dancer arm returns to an upward position, the nip roll speed changes back to the variable speed. In another embodiment, the nip roll speed is approximately equal to an average line speed and the dancer is trimmed to correct the speed of the nip rolls. There is also disclosed a method for controlling the infeed speed.Type: GrantFiled: July 28, 1997Date of Patent: September 29, 1998Assignee: FMC CorporationInventors: Freddy Van den Steen, Eric M. De Smedt, Wim Verbeke
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Patent number: 5650028Abstract: A label for a glass container is preprinted with inks and adhesive on a separable substrate and cured, and the printed label is then transferred to the container. The labelled container is then coated with a protective material. The label application apparatus includes a mechanism for indexing the label web in such a manner as to minimize starting and stopping of the supply and take-up reels when labels are applied to plural containers simultaneously.Type: GrantFiled: July 24, 1995Date of Patent: July 22, 1997Inventors: Thomas L. Brandt, Daniel N. Willkens
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Patent number: 5647276Abstract: An apparatus for use with a printing press including a tension regulator for maintaining a substantially constant tension level on a web of printing medium passing through the printing press. The printing press has at least one dancer roller, and the tension regulator includes an actuator associated with the dancer roller for maintaining a constant biasing force on the dancer roller. The tension regulator also includes a reservoir which communicates with a first chamber of the actuator to define a second chamber larger than the first chamber. The volume of the second chamber is large enough that changes thereto are negligible to the extent that a piston of the actuator is displaced. Therefore, the pressure within the second chamber remains constant which permits a constant biasing force to be applied to the piston regardless of the displacement of the piston.Type: GrantFiled: January 17, 1996Date of Patent: July 15, 1997Inventor: Danny Eugene Tilton, Sr.
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Patent number: 5608159Abstract: A freeze device for an elongated element includes a pressure vessel disposed about at least a part of the element and a freeze seal between the part of the elongated element and the pressure vessel. The freeze seal includes a frozen material exerting a force inwardly against the part of the element and outwardly against the pressure vessel by virtue of having been frozen in situ such that the frozen material thereby seals the elongated element to the pressure vessel.Type: GrantFiled: April 5, 1995Date of Patent: March 4, 1997Assignee: Lucent Technologies Inc.Inventors: John M. Carcone, Jon W. Engelberth, James T. LaGrotta, Joseph V. Newell
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Patent number: 5531859Abstract: An electronic component feeder is provided for transferring a succession of electronic components borne by a carrier tape toward a pickup position one by one, the carrier tape having a backing strip and a protective cover strip adhesively secured to the backing strip to hold the electronic components in position.Type: GrantFiled: December 14, 1994Date of Patent: July 2, 1996Assignee: Daewoo Heavy Industries Ltd.Inventors: Jung D. Lee, Yong G. Lee
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Patent number: 5478001Abstract: A feed monitor for providing a selectable midcycle coil stock feed check on a mechanical power press. A midcycle position of the coil stock feed from which the press can be stopped prior to the reciprocating die contacting the coil stock is chosen. With each reciprocating cycle of the die, a desired midcycle coil stock feed length is compared to a measured midcycle feed length. The press is stopped if the difference between the desired and measured feed lengths is greater than a predetermined tolerance. If the measured midcycle feed length is within the tolerance, the press operation continues.Type: GrantFiled: July 18, 1994Date of Patent: December 26, 1995Assignee: Industrial Innovations, Inc.Inventors: Lloyd Pillsbury, Chris McKinnell, Barry Spockton
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Patent number: 5188580Abstract: An in-line machine for attaching elongated, flexible closure tie elements to the individual bag portions of a laterally folded plastic film web being continuously discharged from a bag forming station, and being forcibly captured by a winder mechanism, engages and drives the moving web toward the winder mechanism by means of mutually spaced inlet, central and outlet drive rollers. During operation of the machine, first and second slack portions of the film web are respectively positioned between the inlet and central rollers, and between the central and outlet rollers. These slack portions are held in vertically looped configurations by a downwardly directed, yielding vacuum force applied thereto. The inlet and outlet rollers are driven at identical speeds corresponding to the constant linear film web output speed from the bag forming station.Type: GrantFiled: August 4, 1989Date of Patent: February 23, 1993Assignee: John C. MarrelliInventors: Gary L. Rutledge, Edgar R. Pitcher
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Patent number: 5050858Abstract: There is provided a sheet feed control method for feeding sheets at a predetermined pitch to the printing section of a printing machine that comprises a sheet feeding roller and a pair of small rollers provided one upstream and the other down stream and pressed against the outer periphery of said sheet feeding roller to sequentially catch and convey sheets, said sheet feed roller being rotated by means of a transmission gear mechanism driven by a source of driving force, said control method being characterized by that it is so designed as to be capable of calculating the time when the rear edge of a sheet passes between said sheet feed roller and said upstream small roller and offsetting or compensating for the preceding backlash of said transmission gear mechanism by modifying said pitch when the rear edge of said sheet passes between said sheet feed roller and said upstream small roller by an amount that corresponds to the amount of the backlash.Type: GrantFiled: December 8, 1989Date of Patent: September 24, 1991Assignee: Alps Electric Co., Ltd.Inventor: Tadashi Nakamura
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Patent number: 4869393Abstract: A top cover is peeled from a component supply tape by passing the cover around a guide surface and in a peeling direction generally reverse to the feeding direction of the supply tape while moving the guide surface in the peeling direction in order to minimize the tension necessary to accomplish the peeling.Type: GrantFiled: June 1, 1988Date of Patent: September 26, 1989Assignee: Universal Instruments CorporationInventor: Henry J. Soth
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Patent number: 4848630Abstract: For accurate positioning of a web of material which is to be transported stepwise by at least first and second feed means through processing stations disposed therebetween, the feed means are controlled by a programmable computer which stores a value representative of the length of the distance to be covered by the web during a transportation step. The tension of the web is measured and the measured value is compared to a reference value stored in the computer. If the actual value deviates from the reference value the drive means of at least one of the web feed means is controlled in such a way that the tension in the web is at least substantially adjusted to the reference value by increasing or reducing the length of the portion of web which in a transportation step is drawn into the processing region between the web feed means.Type: GrantFiled: December 10, 1986Date of Patent: July 18, 1989Assignee: Werner Kammann Maschinenfabrik GmbHInventors: Hans D. Niestrath, Wilfried Kammann
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Patent number: 4812347Abstract: A method of manufacturing a tape of sequential, framed photographic slide in which at least one side of each frame not containing picture information is removably fixed by an adhesive to a continuous tape which moves rectilinearly in a direction parallel to said side.Type: GrantFiled: July 2, 1987Date of Patent: March 14, 1989Inventor: Petrus J. L. C. van Ulden
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Patent number: 4751879Abstract: A system is provided for intermittently processing successive definite lengths of flexible sheet material in continuous web form, e.g., tractor-fed computer printout paper, with nearly tensionless transport of the web through web feeding operations, cyclical web processing and driving operations, and web delivery operations, that are not speed-interdependent. For each processing cycle, with the web extended without slack through an upstream lead to a processing station where a certain length of the web is positioned to be next processed, an excess length of loose web is fed into that lead, typically forming a loop in it; then the certain web length is processed and driven forward a distance shorter than the length of loose web; and then web is retracted from the upstream lead to remove the residual loose web and leave a next certain web length in position to be processed.Type: GrantFiled: March 18, 1987Date of Patent: June 21, 1988Assignee: Van Pelt Equipment CorporationInventor: Christopher K. Van Pelt
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Patent number: 4723488Abstract: An impression cylinder (11) and a blanket cylinder (2) are made in contact with/separated from each other at prescribed timing. Continuous paper (12) inserted between the impression cylinder (11) and the blanket cylinder (2) is intermittently fed in association with the said timing for printing. A pin feed tractor (13) arranged on an inlet side of a printing position forward/reversely feeds and stops the continuous paper (12) at timing previously set in relation to the said timing for contact/separation. A suction conveyer (14) arranged on an outlet side of the printing position sucks and conveys the printed continuous paper (12) while switching its suction force in plural of stages in relation to the said paper feeding timing.Type: GrantFiled: August 27, 1986Date of Patent: February 9, 1988Assignee: Toray Industries, Inc.Inventors: Yoshinori Inouye, Kouzou Tameno, Kosuke Yotsuzuka, Hiroshi Yamada, Yuzo Imabori
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Patent number: 4665619Abstract: A method and apparatus for working on sheet material utilizes a table having two spaced coplanar lips across which sheet material is stretched to be worked on by a tool supported from a movable carriage spanning the table. Clamping units attached to the table hold the sheet material in a taut condition between the coplanar lips of the table by clamping the material against the lips. A platen is suspended from the carriage on the side of the material opposite from the work tool for movement with the carriage and provides a backing for the material as the work tool performs a work operation on the material. The apparatus is particularly suited for applications in which the sheet material in an elongated strip is indexed in segments across the work area of the table.Type: GrantFiled: January 24, 1983Date of Patent: May 19, 1987Assignee: Gerber Garment Technology, Inc.Inventor: David R. Pearl
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Patent number: 4633694Abstract: Gradual acceleration/deceleration of continuous strip processing lines is achieved by suspending manual selected acceleration/deceleration control in favor of predetermined low acceleration/deceleration rates when the line speed is below a pre-established value. Line speed is monitored as a function of the amplitude of a control signal used to drive an amplitude-responsive, variable speed motor. The control signal is derived from an integrator used to integrate a command signal level representing the operator-selected acceleration/deceleration rate. When the control signal amplitude is below a pre-established value, a reference signal level, representing a lower acceleration/deceleration rate than that selected by the operator, is applied to the integrator in lieu of the command signal. A plurality of gradually increasing acceleration rates may be automatically effected until the speed of the continuous strip processing line achieves a pre-established level.Type: GrantFiled: February 13, 1985Date of Patent: January 6, 1987Inventor: Kazuo Miyazaki
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Patent number: 4630071Abstract: An XY recorder in which a recording paper is moved on a platen along the X axis in accordance with one variable and a stylus is moved along the Y axis in accordance with another variable, employs a controller to control the paper movement in several different modes. In a paper draw out mode, the paper is drawn out from a paper-feed roll pinched on the platen between pinch rollers and drive rollers, and during a time interval when the paper-feed roll exerts a backward tension to the paper, the paper is intermittently allowed to slip on the platen by disengaging the pinch rollers from the drive rollers. The tension to the paper backward from the paper-feed roll automatically aligns the paper.Type: GrantFiled: November 5, 1985Date of Patent: December 16, 1986Assignee: Graphtec Kabushiki KaishaInventor: Yoshio Nakazawa
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Patent number: 4512079Abstract: In a plotter, an elongated strip of plotting paper extends between rolls at opposite ends of a plotting table to receive graphic information from a plotting instrument that is carried over the table by means of a motor controlled carriage. Different segments of the elongated strip are shifted onto the work surface of the table to receive the graphic information by coupling the strip to the plotting carriage and moving the carriage together with the strip across the table in an indexing operation. To prevent distortion of the material and associated positioning errors during the step of indexing, the material being pulled onto the table by the carriage is placed in tension and the material being discharged from the table is maintained substantially tension-free.Type: GrantFiled: July 21, 1983Date of Patent: April 23, 1985Assignee: Gerber Garment Technology, Inc.Inventor: Claude W. LeBlond
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Patent number: 4485949Abstract: A document feeding method and apparatus for frictionally (non-sprocket) feeding computer forms web having sprocket holes to the imaging station of a copier for copying, compatible with individual document sheet feeding. After automatically determining that a computer forms web rather than an individual document sheet is being frictionally fed to the imaging station the computer forms web is automatically frictionally fed incrementally in selected incremental lengths and registered to the imaging station with a controllable frictional servo-drive system without engaging the sprocket holes. A system is provided for sensing and accumulating first signals corresponding to the movement of the controllable frictional drive system, and for sensing and accumulating second signals corresponding to the number and position of sprocket holes in the computer forms web being so frictionally fed, including a system of validating sensed holes as being sprocket holes by validating hole dimensions and positions.Type: GrantFiled: August 23, 1982Date of Patent: December 4, 1984Assignee: Xerox CorporationInventors: Steven A. Gebhart, Randolph Parks
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Patent number: 4320192Abstract: A strip 20 has a drive margin 36 and a latent image of a pattern in a light sensitive coating 73 of a pattern portion 22 thereon. To avoid disturbing the pattern, the strip 20 is gripped by the drive margin 36 using a set 43 of pinch-drive rollers which drive the strip without disturbing the latent image. The strip 20 is driven through pattern development, cleaning and etching solution spray chambers 64, 66 and 108, respectively. One or more adjustable shields 78 are used to vary the time interval during which the strip 20 is sprayed by these solutions. By adjusting one or more shields 78 to suit changes in solution condition the time intervals for proper developing, cleaning and etching are coordinated for a speed at which the strip 20 is driven.Type: GrantFiled: April 17, 1980Date of Patent: March 16, 1982Assignee: Western Electric Co., Inc.Inventors: Michael T. Gursky, William W. Pcihoda
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Patent number: 4295912Abstract: A composite tape made of highly different components is laminated in a process that maintains registry between the components. Strips of metal and insulating material are aligned in registry and first tack bonded at intervals. Then the strips are area bonded to create the composite.Type: GrantFiled: July 17, 1979Date of Patent: October 20, 1981Assignee: National Semiconductor CorporationInventor: Carmen D. Burns
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Patent number: 4269342Abstract: An array of dancer rollers are resiliently biased for engaging a plurality of webs in a take-up zone of a honeycomb machine. The dancer rollers engage each web and thrust it out of its plane of advance to maintain the webs under continuous tension loading as they are alternately advanced and halted during successive feeding and cutting cycles, respectively. A pair of index rollers engage the webs, pull them from supply rolls and feed them to a cyclic cutter in response to rotation of the index rollers. In this arrangement, the continuous drive rollers used in conventional web movement arrangements are eliminated with the webs being pulled from the supply roll intermittently and according to need by the index rollers.Type: GrantFiled: October 1, 1979Date of Patent: May 26, 1981Inventor: Daniel H. Ellinor
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Patent number: 4261779Abstract: A short dwell indexing drive system for intermittently moving a web of thermosealing material through a bag machine includes a conjugate cam defined by a pair of disc cams on a continuously driven input or cam shaft which engage cooperating groups of cam followers on an intermittently driven output shaft that yields one web draw/dwell cycle for each revolution of the cam shaft. In the preferred embodiment the contour of the cams smoothly index the web by first accelerating the output shaft from zero velocity through a relatively low peak velocity and thereafter decelerating the web to zero velocity at a point in the cycle in excess of 180.degree. before the output shaft is held stationary to the end of the cycle during a dwell period. Belt drives and an adjustable jackshaft which allows the use of different pulley ratios are connected between the output shaft and a web engaging draw roll for amplifying or reducing motion of the output shaft and for providing articles such as bags of different sizes.Type: GrantFiled: July 25, 1979Date of Patent: April 14, 1981Assignee: FMC CorporationInventor: Robert J. Wech
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Patent number: 4227983Abstract: A strip 20 has a drive margin 36 and a latent image of a pattern in a light sensitive coating 73 of a pattern portion 22 thereon. To avoid disturbing the pattern, the strip 20 is gripped by the drive margin 36 using a set 43 of pinch-drive rollers which drive the strip without disturbing the latent image. The strip 20 is driven through pattern development, cleaning and etching solution spray chambers 64, 66 and 108, respectively. One or more adjustable shields 78 are used to vary the time interval during which the strip 20 is sprayed by these solutions. By adjusting one or more shields 78 to suit changes in solution condition the time intervals for proper developing, cleaning and etching are coordinated for a speed at which the strip 20 is driven.Type: GrantFiled: February 1, 1979Date of Patent: October 14, 1980Assignee: Western Electric Company, Inc.Inventors: Michael T. Gursky, William W. Pcihoda
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Patent number: 4165829Abstract: The disclosed method consists in that the electrode wire has the portion thereof intermediate the supply coil and the welding arc alternatingly retained at one of two points, with an effort applied to the wire in the respective retaining point, causing transverse oscillation of the wire. The effort is applied at an angle substantially short of 90.degree. relative to the direction of feeding the wire toward the welding zone. The apparatus of performing the disclosed method comprises a plurality of gripping means for retaining the wire, each including a plate apertured for passage of the wire and a spring accommodated between a housing and the plate, the plate of one of the gripping means being mounted for reciprocation in the direction of feeding the wire toward the welding zone and having its side surface adapted to cooperate with an actuator mounted on the output shaft of the drive effecting the feed and transverse oscillations of the wire advanced toward the welding zone.Type: GrantFiled: November 9, 1977Date of Patent: August 28, 1979Inventors: Serafim P. Koveshnikov, Viktor F. Pavlov, Stanislav G. Fedorov
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Patent number: 4165028Abstract: A method for controlling the movement of a web of material. The web material advances in a forward direction, thus creating an unsupported loop which characterizes the festoon arrangement of the invention. Web material is advanced into the festoon depending upon the size of the festoon. Web material is withdrawn and returned to the festoon on an intermittent basis independently of the flow of material into the festoon.Type: GrantFiled: November 25, 1977Date of Patent: August 21, 1979Assignee: Owens-Illinois, Inc.Inventor: Thomas E. Doherty
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Patent number: 4131224Abstract: An apparatus having a table defining a work surface, and a carriage mounted for movement over the work surface in one direction includes a device for precisely indexing a strip of sheet material in the same direction so that various sections of the strip can be operated upon by an instrument mounted on the carriage. The indexing device comprises a bar that is parked at one edge of the work surface while the instrument and carriage are working on one section of the sheet material. The bar is subsequently attached to the carriage above the sheet material for an indexing operation. A plurality of magnets are mounted in the bar and cooperate with a clamping plate placed under the bar and the sheet material to clamp the sheet material between the plate and the bar during an indexing operation. After the indexing operation, the clamping plate and bar are returned to the parking position at one edge of the work surface and the bar is detached from the instrument carriage.Type: GrantFiled: July 22, 1977Date of Patent: December 26, 1978Assignee: The Gerber Scientific Instrument CompanyInventors: Heinz J. Gerber, David J. Logan
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Patent number: 4060187Abstract: A method and apparatus for permanently controlling movement of a web of material, which is being continuously supplied to a machine which operates sequentially on a portion of the web as each portion is at a standstill, characterized by using an apparatus including a feeder for feeding the web at a continuous rate of speed and a web take-up device for engaging the web as it exits the feeder to absorb the web being supplied by the feeder for a period of time that the portion of the web is being acted on by the machine and is in a stationary position or at a standstill. The web take-up device includes a pair of members mounted in a pair of spaced side frames for rotation on a first axis, a roller engaging a portion of the web and a structure for mounting the roller on the pair of members for rotation on a second axis offset from the first axis.Type: GrantFiled: November 26, 1976Date of Patent: November 29, 1977Assignee: J. Bobst & Fils, S.A.Inventor: Jean Grob
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Patent number: 4014488Abstract: A fastener feed assembly for a tool such as a power screwdriver having a drive member such as a rotatable bit includes a base fixed to the tool and a nose assembly slidably related to the base. The nose assembly includes a workpiece engaging surface, and when the tool is moved toward the workpiece during a fastener driving operation, the base moves toward the nose assembly. A return spring separates the base and nose assembly when the tool is withdrawn away from the workpiece. A strip of fasteners is fed from a magazine along a feed path through the nose assembly with sequential fasteners located in a drive position. Normally the drive member is spaced from a fastener in the drive position. During movement of the tool toward the workpiece in a driving operation, the drive member moves into engagement with a fastener in the drive position, and then continues to move in order to drive the fastener into the workpiece. A pawl is engageable with the strip in order to advance the strip along the feed path.Type: GrantFiled: July 10, 1975Date of Patent: March 29, 1977Assignee: Duo-Fast CorporationInventors: Frank R. Potucek, Allen R. Obergfell
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Patent number: 4011976Abstract: A method and apparatus to reduce ripple in the signal produced by a transducer attached to a dancer roll, or web accumulator, where cyclic web motion is present. Two transducers are used, one to produce a dancer roll position signal, and another, responsive to the cyclic web drive, to produce a signal corresponding to the ripple component of the dancer roll position signal. An adder combines both signals to generate a third, ripple free signal indicative of the average dancer roll position in the web accumulator. This ripple free signal may be used to control the web speed.Type: GrantFiled: October 15, 1975Date of Patent: March 15, 1977Assignee: E. I. Du Pont de Nemours and CompanyInventor: Thomas Marion Greer