With Helical Cutter Blade Patents (Class 83/342)
  • Patent number: 11584034
    Abstract: A perforating apparatus has a base having at least one counter component. The counter component has a length, Lcc, and a nonlinear repeat length. A support is operatively engaged with the base. A blade having a length, LB, is disposed on the support so as to cooperate in interacting relationship with the counter component. The blade has a plurality of teeth. A web material is perforated as it passes between the base and the support and the blade cooperates with the counter component. A drive is associated with one of the support and the base to reciprocally shift the one of the support or the base for a distance, D, in a shifting direction.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: February 21, 2023
    Assignee: The Procter & Gamble Company
    Inventors: Deborah Sue Slovut, Laura Marie Tanno, Kathryn Christian Kien
  • Patent number: 11547252
    Abstract: An apparatus, product monitoring system, and a method of measuring an amount of product on a roller are provided. The method includes receiving a first position distance between a position sensor and an exterior edge of the roller. The method also includes comparing the first position distance with a predetermined position distance. The predetermined position distance defines the distance between the position sensor and the exterior edge of the roller at a specific amount of product left on the roller. The method further includes determining the amount of product left on the roller based on the comparison of the first position distance and the predetermined position distance. The method still further includes causing the transmission of a signal relating to the amount of product left on the roller.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: January 10, 2023
    Inventor: Hunter James Hollister
  • Patent number: 11407176
    Abstract: A three-dimensional (3D) printing system and method for printing with the 3D system. The 3D system includes a pneumatic dispense gun for mixing a thermoset resin and catalyst and dispensing a catalyzed resin to a rotary dispense valve for application of the catalyzed resin to a substrate on a movable table. The dispense gun contains a catalyst injection unit and a mixer for mixing the catalyst with the thermoset resin. The mixer is downstream of the catalyst injection unit and the catalyst injection unit includes a catalyst injector and a distribution ring surrounding the catalyst injector. One or more first pumps are provided for pumping the thermoset resin from a storage container to the pneumatic dispense gun. A second pump is provided for pumping the catalyst from a storage container to the dispense gun.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: August 9, 2022
    Assignee: MAGNUM VENUS PRODUCTS, INC.
    Inventors: Michael D. Walch, Timothy G. Deluca
  • Patent number: 11203049
    Abstract: An apparatus (2) for flatting, punching or stamping a material (40) introduced into the apparatus (2), said apparatus (2) comprising a first cylinder (14) provided with an outer layer configured for flatting, punching or stamping the material (40); a back-pressure cylinder (16) extending parallel to the first cylinder (14) and an adjustment mechanism (22, 22?, 28, 28?, 34, 34?, 36) for adjusting the distance between the first cylinder (14) and the back-pressure cylinder (16). The adjustment mechanism (22, 22?, 28, 28?, 34, 34?, 36) comprises a first contact member (22) and preferably a second contact member (22?) brought into contact with the bottom portion (circumference) of the first cylinder (14). The contact member(s) (22, 22?) are mounted on a structure (34, 34?) being movably mounted relative to the back-pressure cylinder (16).
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: December 21, 2021
    Assignee: ALUNETIC APS
    Inventor: Phillip Larsen
  • Patent number: 10117455
    Abstract: A rotary shear cutting apparatus to cut discrete non-rectangular portions from a web of smoking article sheet material, comprises a first rotary carrier provided with a first cutting edge and a second rotary carrier provided with a second cutting edge, wherein said first and second cutting edges are configured to cooperate during rotation of said first and second rotary carriers to cut a non-rectangular portion from the web.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: November 6, 2018
    Assignee: BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED
    Inventors: Frank Beckmann, Winfried Böttcher, Andrew Bray, Gary Fallon
  • Patent number: 8785193
    Abstract: The present disclosure provides cutting tools which include a handle coupled to a rotatable shaft having shallow grooves that extend substantially entirely across the surface of the rotatable shaft. The grooves define sharp cutting edges. In particular examples, the cutting edges are continuous, such as being defined by helical threads. The present disclosure also provides methods of dissecting a substrate of cultured cells. The substrate of cultured cells is separated into separated portions with a cutting tool. The cutting tool includes a rotatable shaft having a cutting blade which extends around the shaft. The cutting blade is rolled through the substrate to cut the substrate into portions. The portions are separated from one another to dissect the substrate.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: July 22, 2014
    Assignee: The United States of America, as represented by the Secretary of the Department of Health and Human Services
    Inventor: Soojung Shin
  • Patent number: 8215022
    Abstract: A food product slicer includes a base and a knife mounted for rotation relative to the base. A slide rod extends in a direction past the knife. A carriage assembly is mounted for reciprocal movement back and forth past a cutting edge of the knife. At least one bearing arrangement connects the carriage assembly to the slide rod to facilitate the reciprocal movement of the carriage assembly. The bearing arrangement includes a lubricant reservoir. A bearing bracket holds a bearing that rides on the slide rod. The lubricant reservoir is fluidly connected to deliver lubricant to the slide rod in proximity to the bearing.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: July 10, 2012
    Assignee: Premark FEG L.L.C.
    Inventors: Fariborz Feizi, Shahram Shariff, Brian Stump
  • Patent number: 7856913
    Abstract: A rotary cutting blade provided with a curved cutting edge and a cutting surface extending centripetally from the cutting edge at angles varying in regular or irregular sequence between a predetermined maximum and a predetermined minimum.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: December 28, 2010
    Assignee: Weber Maschinenbau GmbH Breidenbach
    Inventors: Helmut Matzunsky, Rainer Schulze
  • Patent number: 7752949
    Abstract: A tissue paper cutting mechanism having upper knife with variable spiral curve angle includes a base, a bed knife roller rotatably mounted on the base and provided on a circumferential surface with a plurality of straight bed knives radially spaced at predetermined intervals, a knife carrier mounted on the base near the bed knife roller at an axis skew angle relative to the bed knife roller, and an upper knife associated with a structural surface of the knife carrier to extend along a longitudinal axis direction of the knife carrier from an end to another opposite end thereof in a spiral direction, such that an angle contained between an axis of the upper knife and a tangential line to the circumferential surface of the bed knife roller non-linearly varies with every change of the cutting position on the upper knife.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: July 13, 2010
    Assignee: Chan Li Machinery Co., Ltd.
    Inventor: Tung-I Tsai
  • Publication number: 20100154610
    Abstract: In a cut off apparatus, torque necessary for cutting band-like paper is properly distributed to both of the preceding motor and the following motor, thereby making it possible to accurately cut the band-like paper. Specifically, when the band-like paper is cut, the preceding knife and the following knife are given a specified amount of torque in the direction in which the preceding knife and the following knife are pressed against each other, by means of the preceding knife driving motor and the following knife driving motor.
    Type: Application
    Filed: March 1, 2010
    Publication date: June 24, 2010
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Hiroshi ISHIBUCHI, Satoshi MATSUDA, Kuniaki WAKUSAWA, Katsuaki TAKASAKI
  • Patent number: 7694612
    Abstract: Torque necessary for cutting band-like paper is properly distributed to both of the preceding motor and the following motor, thereby making it possible to accurately cut the band-like paper.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: April 13, 2010
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Hiroshi Ishibuchi, Satoshi Matsuda, Kuniaki Wakusawa, Katsuaki Takasaki
  • Publication number: 20090188360
    Abstract: Torque necessary for cutting band-like paper is properly distributed to both of the preceding motor and the following motor, thereby making it possible to accurately cut the band-like paper.
    Type: Application
    Filed: March 31, 2009
    Publication date: July 30, 2009
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Hiroshi ISHIBUCHI, Satoshi MATSUDA, Kuniaki WAKUSAWA, Katsuaki TAKASAKI
  • Patent number: 7484445
    Abstract: A punching and/or perforation equipment (33, 34) for continuous paper forms (37, 42) comprising punching and/or perforation member (81; 226, 227) and contrast elements (82; 224) substantially tangent to the movement surface (63, 204) of the forms and a punching and/or perforation mechanism (56, 57; 197, 198) for driving the punching and/or perforation members. A detecting device (92, 93; 244, 245) detects at least one reference position the forms associated with the punching and/or perforation positions and a servomechanism (87, 88; 228, 229) actuates the punching and/or perforation mechanism on the basis of the reference position or positions between a state of rest and a state of punching and/or perforation and in which the reference position or positions are associated with information of a position encoder (72, 214).
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: February 3, 2009
    Assignee: Tecnau S.R.L.
    Inventors: Giuliano De Marco, Armando Aprato, Francesco Terrusi, Alberto Massucco
  • Patent number: 7234381
    Abstract: Wiping material dispenser apparatus includes a basic housing that receives an articulated cover and a cartridge including two transverse flanges. An upper part of the flanges receives a roll of material and a lower part thereof receives a first blade-holder drum and a second return drum, the drums receiving crown wheels for the connection thereof. The return drum receives a third crown wheel that co-operates with the drum rotation actuation mechanism which includes a fixed cam. The blade-holder arm is provided with transmission means that involve the use of a mobile cam which actuates the cutting blade. The fixed and mobile cams co-operate with one another, defining the trajectory of the cutting blade.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: June 26, 2007
    Inventor: Maurice Granger
  • Patent number: 7191690
    Abstract: A cutting unit is described that contains a pair of cylinders disposed opposite one another with a gap formed there-between for receiving a ribbon. The pair of cylinders include a first cutting cylinder having a periphery with a cutting knife disposed helically about the periphery and a second cylinder. A drive rotates the first cutting cylinder for cutting the ribbon such that a signature cut from the ribbon has a smooth, straight edge.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: March 20, 2007
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: David Clarke Pollock, Charles Francis Svenson
  • Patent number: 6955110
    Abstract: An apparatus and method for cutting soft materials such as meat. Two or more spirally mounted helical blades are situated between two supports, and the supports are mounted to a shank. The shank is rotated to impart rotary action to the spiral shear blades, and the entire device may be used to perform various cutting operations. The distal or bottom one of the supports may also be a cutting blade, and a number of versions of bottom cutting blades are useable in the practice of the invention.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: October 18, 2005
    Assignee: Sandia Corporation
    Inventors: Barry L. Spletzer, Diane S. Callow, James F. Jones, Michael A. Kuehl, Dick L. Shaw, Barbara J. Scalia
  • Patent number: 6742427
    Abstract: The present invention relates to a novel helical drum shear which is operable to cut a strip of material which moving at a first velocity. The cut is formed along a substantially straight line at a specific angle. The specific angle may be at an angle perpendicular to the feed direction thereby producing a squared cut. The helical drum shear comprises a means for cutting the material wherein the cutting means moves at a second velocity which is at a predetermined angle from the first velocity. The apparatus further comprises a means for moving the cutting means at a third velocity such that the combination of the second velocity and the third velocity is equivalent to the first velocity and the material is helically sheared along a substantially straight line oblique to the first velocity.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: June 1, 2004
    Inventor: John R. Buta
  • Patent number: 6715393
    Abstract: A cutting apparatus is disclosed which is particularly suited for use in association with an apparatus for effecting lengthwise slitting of sheet stock, such as sheet metal. In the illustrated embodiment, the cutting apparatus includes first and second cooperating, counter-rotating pairs of knife assemblies, with each of the knife assemblies including at least one knife blade positioned for cutting cooperation with a respective knife blade of the other assembly. In order to facilitate adjustment of the gap or clearance between each cooperating pair of knife blades, the present apparatus includes an adjustment mechanism, whereby one of the knife assemblies can be shifted axially of the other assembly, thereby adjusting the clearance between the knife blades of the assemblies. Efficient adjustment of the cutting apparatus is thus provided, whereby the apparatus can efficiently cut opposite edge, scrap portions of sheet material as the sheet stock is slit by the slitter apparatus.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: April 6, 2004
    Assignee: Chicago, Slitter
    Inventor: Paul Esenther
  • Publication number: 20030172785
    Abstract: The present invention provides a web perforating apparatus which includes a system for detecting and indicating when a blade in the apparatus is broken, dull or otherwise not perforating the web. The apparatus is typically used with rewinders or other similar machines that produce perforated sheets of products, such as paper, using sets of stationary anvil blades and rotating perforating blades. The apparatus comprises at least one anvil including a blade holder and an anvil blade which is positioned within the blade holder. The blade holder is formed of an insulating material for electrically isolating the anvil blade from the machine frame of the rewinder. An electrical conductor is coupled to the anvil blade for supplying an electric current to the anvil blade from a current source. The apparatus also includes at least one grounded perforating blade for moving relative to the anvil blade and cooperating with the anvil blade to perforate the web at predetermined points along its length.
    Type: Application
    Filed: May 9, 2000
    Publication date: September 18, 2003
    Inventors: John S. Formon, Bernie Dodge, Andrew Morris
  • Publication number: 20030121381
    Abstract: The present invention relates to a novel helical drum shear which is operable to cut a strip of material which moving at a first velocity. The cut is formed along a substantially straight line at a specific angle. The specific angle may be at an angle perpendicular to the feed direction thereby producing a squared cut. The helical drum shear comprises a means for cutting the material wherein the cutting means moves at a second velocity which is at a predetermined angle from the first velocity. The apparatus further comprises a means for moving the cutting means at a third velocity such that the combination of the second velocity and the third velocity is equivalent to the first velocity and the material is helically sheared along a substantially straight line oblique to the first velocity.
    Type: Application
    Filed: December 13, 2002
    Publication date: July 3, 2003
    Inventor: John R. Buta
  • Publication number: 20020184985
    Abstract: This invention relates to a rotary cutoff apparatus, which permits easy speed control without needing high-level skill or technique and also allows ready replacement of its anvil member. The apparatus is provided with a knife cylinder, which has a knife arranged on its outer circumferential surface and is rotatably supported, and an anvil member with which a free edge of the knife can be brought into contact upon rotation of the knife cylinder, whereby a travelling band-shaped sheet is nipped between the knife and the anvil member and is hence cut off. The knife is supported on the knife cylinder via a spring having spring force sufficient to bear cutting force required to cut off the band-shaped sheet so that the knife is displaceable in a loaded direction upon cutting off the band-shaped sheet. The rotary cutoff apparatus according to the present invention can be arranged, for example, in a production line for a band-shaped sheet material such as a corrugated fiberboard sheet.
    Type: Application
    Filed: July 31, 1998
    Publication date: December 12, 2002
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD
    Inventors: HIROSHI ISHIBUCHI, HIROYUKI TAKENAKA, TOSHIHIDE KATO
  • Patent number: 6422113
    Abstract: A knife drum for a web cross-cutting machine has a generally cylindrical drum body centered on an axis and formed by inner and outer tubes. The inner tube is reinforced with fibers extending helicoidally of the axis at positive and negative angles of 30° to 60° crosswise of one another. The outer tube is fitted coaxially in direct engagement over the inner tube and is reinforced with fibers extending at an angle of less than 30° to the axis. It further is formed with a full-length radially outwardly open groove holding a blade holder in turn carrying a blade.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: July 23, 2002
    Assignee: Jagenberg Papiertechnik GmbH
    Inventor: Albrecht Blume
  • Publication number: 20020088322
    Abstract: A cutting unit is described that contains a pair of cylinders disposed opposite one another with a gap formed there-between for receiving a ribbon. The pair of cylinders include a first cutting cylinder having a periphery with a cutting knife disposed helically about the periphery and a second cylinder. A drive rotates the first cutting cylinder for cutting the ribbon such that a signature cut from the ribbon has a smooth, straight edge.
    Type: Application
    Filed: January 10, 2001
    Publication date: July 11, 2002
    Inventors: David Clarke Pollock, Charles Francis Svenson
  • Patent number: 6389941
    Abstract: A rotary knife incorporates the use of an electronically controlled, active damping system to control vibrations of knife cylinders. The system preferably uses pairs of electromagnetic actuators to provide opposing pulling forces on a ferromagnetic portion of a lever arm that is mechanically coupled to the stationary support shaft for the knife cylinder. Vibration sensors, preferably accelerometers, are used to monitor vibrations of the respective knife cylinders. A digital signal processor implementing a state space control system controls the electromagnetic actuators to actively cancel vibration energy in the knife cylinders.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: May 21, 2002
    Assignee: Marquip, LLC
    Inventor: James R. Michler
  • Publication number: 20010022124
    Abstract: Apparatus for the continuous, chipless separation of individual, identical pieces from a solid round workpiece, includes at least two cutting rollers, cooperating with one another, for separating and rolling the workpiece. Each of the cutting rollers is defined by a separating portion and has a coil, with the height of the coil of one cutting roller being equal or slightly greater than the radius of the workpiece in the separating portion, and with the coil of the other cutting roller so configured as to eliminate a collision in the separating portion with the coil of the one cutting roller.
    Type: Application
    Filed: February 21, 2001
    Publication date: September 20, 2001
    Inventors: Wilfried Forster, Roland Stephan, Joachim Schlegel
  • Patent number: 6289777
    Abstract: A moving paper strip or web is cross-perforated by a perforation roller in cooperation with a counter roller. The perforation roller has a plurality of axially spaced retractable perforation plungers. These perforation plungers form a helical line of plungers on the circumference of the perforation roller to perforate left rising or right rising tear line extending in a direction oblique to a paper web movement direction to form a draw-in tip after separating the paper web along the tear line.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: September 18, 2001
    Assignee: Kongg & Bauer Aktiengesellschaft
    Inventors: Manfred Wolfgang Hartmann, Horst Bernhard Michalik
  • Patent number: 6209432
    Abstract: A fixed blade and a rotary cutter are mounted in a supporting frame of a wire cutting apparatus. A clearance not larger than a half of a diameter of the wire is provided between a tip of the fixed blade and a tip of the rotary cutter. The rotary cutter has a channel provided between each couple of cutting edges of the rotary cutter and inclined to its rotational shaft. The fixed blade may be disposed in each of opposing side walls of the supporting frame, the fixed blades being shifted from each other in an axial direction of the rotational shaft.
    Type: Grant
    Filed: September 11, 1997
    Date of Patent: April 3, 2001
    Assignee: Yazaki Corporation
    Inventor: Isamu Matsuda
  • Patent number: 6155151
    Abstract: A cutter drum for a web-cutting machine has a body having a cylindrical outer surface centered on an axis and formed with at least one seat having a radially outwardly directed floor face extending axially and helically of the axis and a tangentially directed rear face extending generally radially of the axis. A helically nonstraight blade lies flat on the floor face and has a front cutting edge lying radially outside the surface and a rear side confronting and spaced from the rear face of the seat. Blade bolts extending generally radially of the axis through the blade are seated in the body and secure the blade to the floor face with a possibility, when the blade bolts are not tightened, of limited movement of the blade on the floor face. A plurality of axially spaced spacer blocks each have a rear edge bearing against the rear face of the seat and a front edge bearing against the rear side of the blade.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: December 5, 2000
    Assignee: Jagenberg Papiertechnik GmbH
    Inventor: Peter Reichert
  • Patent number: 6073527
    Abstract: Shingling of paperboard sheets cut from a web with a helical blade cutoff knife utilizes the downward deflection of the trailing edge of the cut sheet and simultaneous lifting of the leading edge of the web to position the sheets for shingling immediately downstream of the knife. A vacuum outfeed conveyor takes advantage of the initial downward deflection of the sheet caused by cutting to pull the trailing edge of the sheet onto the vacuum conveyor which is simultaneously slowed relative to the lead edge of the advancing web. In the preferred embodiment, vacuum is continuously applied and the conveyor is accelerated back to line speed as soon as the leading end of the web is pulled onto the vacuum conveyor.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: June 13, 2000
    Assignee: Marquip, Inc.
    Inventors: Richard W. Harter, Dennis L. Lemke, James R. Michler
  • Patent number: 6032558
    Abstract: A rotary knife incorporates the use of an electronically controlled, tuned mass active damping system to control vibrations of the knife cylinder. The system preferably uses one or more electromagnetic actuators to provide force on a tuned mass which is mechanically coupled to the knife cylinder. Vibration sensors, preferably accelerometers, are used to monitor vibrations of the respective knife cylinders and tuned masses. A digital signal processor implementing a state space control system controls the electromagnetic actuators to remove vibration energy from the system. An active damping system in accordance with the invention is more effective in removing vibration energy than passive systems, especially in heavy-duty applications.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: March 7, 2000
    Assignee: Marquip, Inc.
    Inventor: James R. Michler
  • Patent number: 6003580
    Abstract: An automated placement of flat valves on a balloon strip. Included is a vacuum platen which receives the free end of a row of valve films. A cutting blade severs a single valve from the film, which is held in place by the vacuum platen. The vacuum platen is then moved through a series of motions for positioning above a heating element which is raised to bond the valve to the balloon strip.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: December 21, 1999
    Assignee: Stabon International, Inc.
    Inventor: Michael John Frazier
  • Patent number: 5988033
    Abstract: Apparatus, device and method for improved slicing of large food sticks, loaves and the like are provided. A slicing blade which has a top flat surface or top flat land width along its cutting edge provides generally longitudinal forces on the food product being sliced, which forces are in a direction generally opposite to the direction through which the food products are fed through a slicing apparatus. The slicing blade includes a bottom primary bevel land width surface and an advantageous primary angle for imparting improved stack and slice uniformity and for controlling package overfill. The slicing blade also exhibits a long slicing blade surface which follows an Archimedean spiral. The invention is particularly important in improving handling of large luncheon meat sticks, especially non-frozen, high water content and reduced fat content luncheon meat sticks.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: November 23, 1999
    Assignee: Kraft Foods, Inc.
    Inventors: Gary R. Skaar, Timothy T. Watson, Greg C. Wicke, Dennis G. Flisram, Robert B. Glennon, Larry C. Gundlach
  • Patent number: 5836228
    Abstract: Apparatus for slitting or cutting material comprises a driving roller 10 and a driven roller 12. Each roller 10 or 12 has on its periphery a plurality of ribs at a predetermined pitch and helix angle. The pitch of the ribs 18 on the driving roller 10 is smaller than the pitch of the ribs 30 on the driven roller 12, and the helix angle of the ribs 18 on the driving roller 10 is of opposite direction to, and of smaller magnitude than, the helix angle of the ribs 30 on the driven roller 12. The ribs 18, 30 cooperate to cut with a shearing action a web 16 of sheet material fed into the nip between the rollers 10, 12.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: November 17, 1998
    Assignee: Shaikh Ghaleb Mohammad Yassin Alhamad
    Inventors: Duncan Richard Guthrie, David William Smith, John David Wood
  • Patent number: 5720210
    Abstract: A rotary cutter includes a knife rotor having extending from an exterior peripheral surface thereof at least one longitudinal knife. The knife rotor cooperates to cut a sheet to a predetermined length, with either a plane rotor or a swingably mounted thick plate member, neither of which is provided with a knife. Either the plane rotor or the thick plate member has a surface positioned to come into contact with a tip of a blade of the knife to cut therebetween the sheet to a predetermined length.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: February 24, 1998
    Assignee: Asahi Machinery Limited
    Inventor: Yoshiharu Okahashi
  • Patent number: 5713256
    Abstract: A direct drive cut-off has a pair of cylinders, each having a helical knife blade. The path of the knife blade around the cylinder defines a synchronous length. A corrugated board is passed in a board path direction between the cylinders at a production rate. The knife blades move in proximity to each other in the board direction to cut the continuous board into sheets. The knife blades enter the board path and engage the continuous board at a beginning of engagement position of a knife blade entering edge and depart the board path at an end of engagement position of a knife blade exiting edge. The sheets are accelerated downstream of the cylinders. The cylinders are controlled by a control unit for accelerating and decelerating the rotational speed of the cylinders so that the knife blades engage the continuous board at the specific length cutting the board into sheets. The control unit is responsive to the production rate, and the sheet length.
    Type: Grant
    Filed: March 9, 1994
    Date of Patent: February 3, 1998
    Assignee: The Langston Corporation
    Inventor: Thomas R. Keeny
  • Patent number: 5690009
    Abstract: A roll sheet cutter mechanism for an image forming apparatus is provided which is adapted to cut a roll sheet 4 paid out of a feed reel 51 between a rotary blade 82 and a stationary blade 81. When the leading edge of the transported roll sheet 4 passes over the rotary blade 82 located at a guiding position, the rotary blade 82 guides the leading edge of the roll sheet 4 in a transportation direction. The rotary blade 82 returns to a cutting stand-by position before the tail edge portion of the roll sheet 4 passes over the rotary blade 82. Therefore, the occurrence of jam of the roll sheet due to the curling thereof can assuredly be prevented. Further, time loss can be eliminated because the rotary blade is adapted to return to the cutting stand-by position.
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: November 25, 1997
    Assignee: Mita Industrial Co., Ltd.
    Inventors: Masahiko Nakao, Katsuhiro Yoshiuchi, Keizo Yamamoto
  • Patent number: 5685817
    Abstract: An arrangement for scoring continuously transported flat workpieces to be folded along scored lines is composed of scoring tools fastened to shafts that are parallel to each other. One part of the scoring tools features a groove and the other part features a ridge. The groove and the ridge follow a helical path over external cylinders defined by the tools and engage with each other in the contact region of their cover lines. In order to set lengths of the scored lines, a tool part is composed of a package of tightly compact, discoid segments that carry the scoring tools. At least one part of these segments can be retained on the shaft in a manner permitting rotation, and located at different angles, in order to be able to form two scored lines with only one pair of scoring rolls. A cylindrical saucer-type segment forming a second scoring tool is retained on each shaft.
    Type: Grant
    Filed: June 19, 1996
    Date of Patent: November 11, 1997
    Assignee: Windmoller & Holscher
    Inventor: Richard Feldkamper
  • Patent number: 5526726
    Abstract: Apparatus for shearing elongated products such as rods, bars and the like moving longitudinally along a path of travel. The apparatus includes a pair of constant diameter helical blades mounted for rotation about axes parallel to the path of travel. The rotational orientation of the blades and the spacing between their respective axes is such that segments of the blades coact along a cutting path parallel to the path of travel. The blades are rotated in opposite directions to thereby cause coacting segments thereof to move repetitively along the cutting path in the direction of product movement. A switch diverts the products from the path of travel across the cutting path for shearing by the coacting segments of the cutting blades.
    Type: Grant
    Filed: December 23, 1993
    Date of Patent: June 18, 1996
    Assignee: Morgan Construction Company
    Inventors: Terence M. Shore, Melicher Puchovsky, Harold E. Woodrow
  • Patent number: 5386753
    Abstract: Cross cuts for forming the ends of a tab on a sheet, for example a glue tab on a corrugated paperboard container blank, are performed by independent rotary cutter units. Each cutter unit has a spirally convoluted blade which, as it rotates, cuts progressively inwards from an outside edge of the sheet towards an opposite outside edge. As the sheet is conveyed along, a downstream cutter unit cuts the leading end of the tab, and an upstream cutter unit cuts the trailing end. After each cut, the cutter remains at rest with its blade in an inoperative position out of the path of any oncoming sheet. A sensor senses the next oncoming sheet and initiates the cutting via a computer. These rotary cutters mitigate skewing of the sheets while being cut.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: February 7, 1995
    Assignee: Ward Holding Company, Inc.
    Inventors: Michael P. Baron, John R. Harrison, William F. Ward, Jr.
  • Patent number: 5359915
    Abstract: A high speed web cutter has a rotating roller with an extended bar mounted perpendicular to its surface and angled to be aligned askew with respect to the roller's axis. During the rotation of the roller, the bar interferingly contacts a plate having an angled edge that is mounted on a relatively stiff cantilever spring. The bar edge and the plate edge are not mounted parallel with each other nor are either of them parallel with the plane of the web. As the roller rotates, the extended bar deflects the cantilever spring, allowing the edges to intersect in a cutting intersection that travels axially with roller rotation, thereby severing a web member passing between the roller and the plate edge.
    Type: Grant
    Filed: June 9, 1993
    Date of Patent: November 1, 1994
    Assignee: Datametrics Corporation
    Inventor: Mark A. Hitz
  • Patent number: 5165151
    Abstract: This invention provides a shearing apparatus for shearing, between a spiral cutter and a lower blade, tip ends of numerous piles formed on a foundation of a pile fabic. The shearing apparatus has a construction for producing fine design patterns, and comprises a plurality of elements each including a thin main body vertically movably mounted in a slit defined in an element block, and a thick head formed integral with the thin main body for pressing the foundation toward the spiral cutter. The thick heads of the elements are arranged close to one another without gaps in between over an entire axial length of the spiral cutter. Each of the elements further includes a leg formed integral with a lower portion of the thin main body to be offset from legs of adjacent elements. A cylinder mounting block disposed below the element block has piston rods of air cylinders arranged in positions opposed to the respective legs.
    Type: Grant
    Filed: March 25, 1992
    Date of Patent: November 24, 1992
    Inventor: Chieko Nakagawa
  • Patent number: 5125302
    Abstract: A machine is described for perforating webs of material, such as toilet paper. The machine includes a cylinder (17) mounted on the frame of the machine and around which cylinder the web is carried as the web passes through the machine. The cylinder has a plurality of blades, one edge of each extending beyond the surface of the cylinder and parallel to the axis of the cylinder. A support (21) for a cooperating blade (33) is pivotally mounted on the machine in a manner which permits the cooperating blade (33) to move toward and away from the blades in the cylinder (17). The cooperating blade (33) extends at an angle to the axis of the cylinder and consists of a plurality of segments, each of which is supported in a block (25) which fits into seats in the support. The seats extend in a line parallel to the cylinder axis.
    Type: Grant
    Filed: December 24, 1990
    Date of Patent: June 30, 1992
    Assignee: Fabio Perini S.p.A.
    Inventor: Guglielmo Biagiotti
  • Patent number: 5117718
    Abstract: A rotary perforator having a rotary anvil roll carrying one or two anvils cooperable with a fixed perforating blade edge for forming lines of perforations at spaced intervals along a continous web fed between the anvil roll and the blade edge, with provision for feeding the web and driving the anvil roll at different speeds, and for positioning the anvil roll at different skew angles relative to a plane transverse to the path of the web at right angles to the edges of the web so that the lines of perforations extend at right angles to the edges of the web, and with provision for forming the perforations in each line progressively across the web.
    Type: Grant
    Filed: April 23, 1991
    Date of Patent: June 2, 1992
    Assignee: Integrated Design Corporation
    Inventor: Eugene W. Wittkopf
  • Patent number: 5001952
    Abstract: According to the invention, a rotary cutter is provided, which includes a fixed blade having a straight cutting edge and a rotary blade having a spiral cutting edge. The rotary blade is installed for rotation about an axis extending parallel to the cutting edge of the fixed blade, the spiral cutting edge of the rotary blade moving along a path which extends tangentially to said cutting edge of the fixed blade. At least one of the fixed blade and the rotary blade is shorter than the width of a paper strip. Accordingly, the rotary blade and the fixed blade cooperate with each other to partially cut the paper strip widthwise while leaving the opposite end portions uncut. The fixed blade has opposite surfaces extending toward the cutting edge thereof, one of which comprises an inclined surface formed on the paper inlet side of the fixed blade and disposed at an angle less than 60.degree. with respect to the paper strip.
    Type: Grant
    Filed: November 28, 1989
    Date of Patent: March 26, 1991
    Assignee: Kanzaki Paper Manufacturing Co., Ltd.
    Inventor: Shigeharu Myogadani
  • Patent number: 5001953
    Abstract: This invention relates to an electromechanically operable apparatus for severing strip, such as a paper tape or plastic film tape, which is dispensed by a power-operated dispenser. A swingable cutter blade is connected to a crank, which is operated by a gear train via an eccentric drive and a connecting rod, which is provided with a cam track cooperating with the crank. In dependence on the condition of the cam track and the sense of rotation of a motor for driving the gear train the extent of the angular movement imparted to the swingable cutter blade can be selected for the making of a complete cut or a partial cut through the strip.
    Type: Grant
    Filed: May 25, 1990
    Date of Patent: March 26, 1991
    Assignee: Hengstler GmbH
    Inventor: Horst Pfeiffer
  • Patent number: 5000069
    Abstract: A paper cutter has a cutter bar and rotary cutting blade that cooperate to slit a continuous web of paper passing therethrough across the entire width thereof. A cam is provided on one end of the cutter roll which lifts the cutter bar out of operative contact with the cutter roll and blade for a portion of a revolution of the cutter roll. The cutter bar is spring-urged into contact with the cutter roll and the cutter roll is axially shifted along the cutter bar to move the cam into and out of contact with the cutter bar to selectively disable the slitting of the paper web for a small portion of the width thereof to allow discreet individual portions of the web to remain connected together for further operations at another location. The cutter roll is driven by a motor, and is axially shifted by solenoid lever arrangement to position it relative to the cutter bar.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: March 19, 1991
    Assignee: Ithaca Peripheral Inc.
    Inventor: Larry R. Knobel
  • Patent number: 5000812
    Abstract: Cutter apparatus to cut accurately a composite label without cutting the backing of the composite and a system that includes the cutter apparatus. The cutter apparatus includes a transporter mechanism positioned to receive the composite, which typically includes the backing, many labels on the backing and laminate covering the surfaces of the labels, the transporter mechanism being precisely operable to move the composite translationally in a direction (i.e., the X-direction herein). A detector ascertains the precise location of individual labels on the composite and is interconnected to provide control signals to the transporter mechanism to enable that mechanism to move the composite precisely along the X-direction.
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: March 19, 1991
    Assignee: Imtec, Inc.
    Inventor: William J. Murphy
  • Patent number: 4969016
    Abstract: A device installed in an imsge recording apparatus for pulling out the leading edge of a rolled recording medium such as a rolled paper and then cutting the recording medium at a predetermined length as measured from the leading edge to feed the resulting sheet to a predetermined recording section of the apparatus. A plurality of paper feed mechanisms are each provided with a cutter for cutting a paper which is paid out from a roll. When two or more of the paper feed mechanisms are loaded with a paper of a desired kind, they are automatically and repetitively switched from one to another every time a sheet feed operation is performed.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: November 6, 1990
    Assignee: Ricoh Company, Ltd.
    Inventor: Kunio Kudoh
  • Patent number: 4949606
    Abstract: An apparatus for severing data-bearing tapes which are dispensed by a machine, which apparatus comprises an electric motor for driving a double-edged helical rotary cutter for cooperating with a spring-loaded stationary cutter, comprises an angle-section carrier, which is formed on the outside of one leg of said carrier with a concave recess extending along said one leg and receiving said rotary cutter, whereas the second leg of the carrier constitutes a bottom for mounting the motor, which is disposed in the spaced defined between the two legs, and the carrier is adapted to be cut to a length which matches the width of the tape to be severed.
    Type: Grant
    Filed: November 22, 1988
    Date of Patent: August 21, 1990
    Assignee: Hengstler GmbH
    Inventor: Horst Pfeiffer
  • Patent number: 4911047
    Abstract: A synchronous rotary cross-cutter is disclosed with two oppositely rotated, axially parallel cutting rotors that support cooperating, helically extending knife blades with cutting edges situated in a cylindrical envelope. The axes of these cutting edges run at an angle, corresponding to the inclination of the helix, with respect to the direction of advancement of the material web being cut. To accommodate different cutting lengths without the need for a controllable irregular drive for this purpose, the axial distance of the cutting rotors from the material web is variable and the knives are mounted on a flat blade holder that runs substantially tangentially in the rotor cross section and is slightly flexible. The knife blade holder, supported by a series of individually adjustable supporting elements, can be given a slight flexure with a radial adjustment, so as to assure that the position of the cutting edge of the knife remains within in the cylindrical envelope.
    Type: Grant
    Filed: May 26, 1988
    Date of Patent: March 27, 1990
    Assignee: Valmet-Strecker GmbH
    Inventors: Hans Hornung, Bernd Fuchs, Eduard Voltz