Corrugating Reshaper Patents (Class 425/303)
  • Patent number: 11407161
    Abstract: Mold blocks of a pipe molding corrugator are provided with enhanced cooling capability due to the provision of cooling fins on the side portions of each mold block. Air can be forced between the fins and some exhaustion of the air can occur at the base of the fins adjacent the mold block cavity. With this arrangement, enhanced cooling of mold blocks is possible.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: August 9, 2022
    Inventors: Manfred A. A. Lupke, Stefan A. Lupke
  • Patent number: 10479043
    Abstract: A forming device for gathering the width of a traveling web is disclosed. The forming device includes opposing arrays of flute-forming bars that can be interlaced to define therebetween a longitudinal flute-forming labyrinth effective to reduce the width of a web traveling therethrough by a preselected take-up ratio. The flute-forming bars are curved beginning at an entry end of the forming device such that they converge in a lateral direction as they proceed in the machine direction. In this manner, individual elements of the web traveling between the respective arrays in the machine direction follow contour lines along the curved bars or between adjacent ones of the curved bars so that no such element crosses any flute-forming bar in the cross-machine direction as the web travels and is fluted. A corrugating die for introducing a near-net shape to the intermediate-fluted web is also disclosed, as are a corrugating line incorporating these operations and methods for its operation.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: November 19, 2019
    Assignee: HBK FAMILY, LLC
    Inventor: Herbert B. Kohler
  • Publication number: 20140377397
    Abstract: Flexible tubular film (10) is helically cut into a flat strip by unwinding the tubular film in flattened form by a tumbling unwinder (1), advancing the flat film tube to a tube expansion zone (17) in which the flat tube is expanded into a circular cylindrical tube and is passed axially over a hollow mandrel (14) slightly lower in external diameter than the diameter of the expanded tube to be cut by knife (18) helically while on the mandrel into a flat strip that is removed at an angle to the mandrel axis. The flat tube is longitudinally stretched by stretching rollers (107-112), which tumble with the tumbling unwinder. The apparatus further comprises stabilization means for stabilizing the orientation applied by the tumbling stretching rollers, applied to the helically cut film strip after it has been drawn from the mandrel.
    Type: Application
    Filed: June 4, 2014
    Publication date: December 25, 2014
    Inventors: Ole-Bendt Rasmussen, Nikolaj Wettergren Rasmussen
  • Publication number: 20140322277
    Abstract: In a process and an apparatus (10) for making a solid form (11), preferably of a therapeutic or pharmaceutical product, an intermediate mass (31) of material is obtained from a respective basic layer (21) in the form of a sheet or band, the intermediate mass of material being composed of a plurality of layers of material and the solid form (11) of material being obtained from the intermediate mass (31).
    Type: Application
    Filed: April 27, 2012
    Publication date: October 30, 2014
    Applicant: I.M.A. INDUSTRIA MACCHINE AUTOMATICHE S.P.A.
    Inventors: Dario Rea, Giorgio Manaresi
  • Patent number: 7740786
    Abstract: Necked nonwoven webs having improved cross-directional uniformity are made by a process which includes the step (prior to neck stretching) of corrugating the nonwoven web to reduce its width from an initial width A to a reduced corrugated width B. The cross-directional uniformity is optimized as the corrugated width B approaches the ultimate width C of the necked nonwoven web.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: June 22, 2010
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Robert J. Gerndt, David W. Hall
  • Publication number: 20080246182
    Abstract: The present disclosure is directed to systems and methods of manufacturing filter cartridges are disclosed, the system including a tube of laminated and seamed filter media, a media unwind mechanism, a mandrel having a starting point operatively positioned proximate the media unwind mechanism, structure, operatively positioned proximate the mandrel, for feeding the tube of laminated and seamed filter media into the starting point of the mandrel, structure, operatively positioned in the mandrel, for pressurizing the tube of laminated and seamed filter media with a gas, structure, operatively positioned in the mandrel, for expanding the tube of laminated and seamed filter media into a substantially cylindrical shape as the tube of laminated and seamed filter media passes over the mandrel, a pleater mechanism, operatively positioned proximate the mandrel, a blade mechanism, operatively associated with the pleater mechanism, for alternately engaging the tube of laminated and seamed filter media with the blade mec
    Type: Application
    Filed: March 13, 2008
    Publication date: October 9, 2008
    Inventors: Mahesh Z. Patel, Jonathan C. Taylor, Gary W. Schukar
  • Patent number: 7014449
    Abstract: Apparatus and process for forming dual hose cuffs for being split to provide one hose cuff on one length of hose, particularly a corrugated hose, and another hose cuff on another length of hose, particularly a corrugated hose. Cuffs, or hose cuffs, formed by such process. Hose, particularly corrugated hose, provided with cuffs formed by such process.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: March 21, 2006
    Assignee: Vital Signs, Inc.
    Inventor: Mark E. Woelfel
  • Patent number: 6991447
    Abstract: A pleating machine (20) is provided which allows extremely rapid, uniform pleating of flexible, tubular bodies (28), thereby eliminating the arduous and time-consuming task of manual pleating. The machine (20) includes an upper, stationary, female tubular jaw (90) and a lower, reciprocal, male tubular pleating jaw (92) which are oriented in superposed, substantially axial alignment, along with a drive assembly (26) serving to vertically reciprocate lower jaw (92). An elongated rod-type body support (24) extends downwardly through the upper jaw (90) and presents a pleating surface (88a), so that upon reciprocation of lower jaw (92), the jaw lugs (105) successively engage the body (28) to form pleats (162, 164). The pleats (162, 164) are retained by keeper structure including inwardly extending female jaw segments (98) and weighted slide (89) mounted on support (24).
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: January 31, 2006
    Assignee: BE Intellectual Property, Inc.
    Inventors: Harold G. LeClare, Kevin E. Welch, Kevin L. Egbert, Andrew R. Elliott, James P. Morris, Gary R. Hannah
  • Patent number: 5981024
    Abstract: A mineral fiber plate product is produced by producing a first non-woven mineral fiber web containing mineral fibers predominantly arranged in a first longitudinal direction and segments of the first mineral fiber web are arranged in a partly mutually overlapping relationship for producing a second non-woven mineral fiber web, which contains mineral fibers generally transversally relative to one another. The second mineral fiber web is folded transversely for producing a third non-woven mineral fiber web. The third non-woven mineral fiber web is cured for producing a cured non-woven mineral fiber web from which a mineral fiber plate, or alternatively, a tubular insulating element is cut. In packaging, the volume of the mineral fiber plate may be reduced to 40%-60%.
    Type: Grant
    Filed: September 6, 1996
    Date of Patent: November 9, 1999
    Assignee: Rockwool International A/S
    Inventors: Luis Joergen Noergaard, Kim Brandt, Ian Cridland
  • Patent number: 5792487
    Abstract: A corrugated plastic panel is produced by providing a plastic panel corrugation device whereby a plastic material is extruded, a cooled extrusion is formed by passing the extrusion through a cooling roller assembly, a corrugated extrusion is formed by passing the cooled extrusion through a forming roller assembly when the cooled extrusion has reached its impressionable temperature range, a corrugated extrusion is passed through a pulling roller assembly when the corrugated extrusion has reached its hardening temperature range, and a corrugated plastic panel is formed by passing the corrugated extrusion through an extrusion cutting assembly.
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: August 11, 1998
    Assignee: Witt Plastics of Florida Inc.
    Inventors: Larry Lee Wenning, Charles L. Beatty
  • Patent number: 5720991
    Abstract: A device to form different shaped raviolis includes multiple uniquely outlined cutting and crimping ribs, surrounding finger ejection holes, and an extrusion die plate hand support system.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: February 24, 1998
    Inventors: Janet Gildersleeve, Ronald M. Popeil, Alan L. Backus
  • Patent number: 5476630
    Abstract: Method of manufacturing a dental aspirator by extruding a continuous tube with a bellows portion. The tube is angled to form a number of folds, each of which consists of two cup-shaped portions having concave surfaces facing each other. One cup-shaped portion is made smaller than the other, allowing them to be snapped together. The bellows are formed from the tube wall by chilled mold chains. At the same time, the tube is profiled to form an end portion at the suction end of the finished aspirator.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: December 19, 1995
    Inventor: Ernst Orsing
  • Patent number: 5324465
    Abstract: An apparatus for cutting a honeycomb half-cell structure into sheets includes a blade for cutting the structure and a conveyor for positioning a length of the half-cell structure so that the blade cuts across the diagonal surface of the half-cell structure, thereby forming the sheets. The conveyor comprises platens including a plurality of bars contacting the valleys on one side of the half-cell structure and a space between each consecutive bar. The half-cell structure is cut along the diagonal surface alternating between one side of a first predetermined bar and one side of a second predetermined bar. A process for cutting a half-cell structure into sheets includes positioning a length of the half-cell structure so that the diagonal surfaces of the structure are positioned adjacent a blade for cutting and cutting across the diagonal surface to form the sheets.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: June 28, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Joseph J. Duffy, Pui-Yan Lin, Robert A. Marin
  • Patent number: 4881883
    Abstract: A system for continuously producing plate-shaped catalysts includes a mold press machine for press-molding a belt-shaped catalyst into a predetermined form. Two pairs of reciprocating grip delivery mechanisms are provided at the downstream side of the mold press machine. A cutting device is provided at the downstream side of the pair of belt-shaped catalyst grip delivery mechanisms. The length of the catalyst is detected after it passes through a cutting device. The cutting device is operated in response to a signal from the length detector. Control of the grip and delivery mechanisms includes performing a pass of delivery of the plate-shaped catalyst and release of the gripping mechanisms as necessary during cutting of the plate-shaped catalyst. The mold press can be operated continuously and the cutting is performed to always produce plate-shaped catalyst members having the predetermined length.
    Type: Grant
    Filed: March 8, 1988
    Date of Patent: November 21, 1989
    Assignee: Babcock-Hitachi Kabushiki Kaisha
    Inventors: Takashi Michimoto, Saburo Kudo, Kazuhiko Kuwada, Nobuyoshi Ishida
  • Patent number: 4873048
    Abstract: A method of forming a hole in a plastic pipe feeds a plastic layer for the plastic pipe from a nozzle about a mandrel into chill moulds being displaced along an elongated mould cavity about the mandrel formed by the chill moulds. All of the plastic layer is pressed into the chill moulds with a pressure medium between the mandrel and all of an inner surface of the plastic layer for forming the plastic pipe therefrom. Only portions of the plastic layer of the plastic pipe are then subjected to a local pressure difference exceeding the breaking limit of the plastic layer between the inner surface and an opposite, outer surface of the plastic layer at least in part from a flowing medium for forming a hole in the plastic layer of the plastic pipe, the flowing medium being one of a gas and a liquid and flowing from the mandrel at a pressure higher than that of the pressure medium pressing the plastic layer of the plastic pipe.
    Type: Grant
    Filed: July 7, 1988
    Date of Patent: October 10, 1989
    Assignee: Oy Uponor AB
    Inventor: Jyri Jarvenkyla
  • Patent number: 4604792
    Abstract: The method of making the diaphragm includes pressing on the front face of a film at spaced apart areas to deform it progressively into a series of closely-spaced generally U-shaped projections. A manufacturing device presses the sides of the projections inwardly to rigidify them. The transducer magnet assembly includes a series of elongated magnet pole-piece strips which confine magnets and are arranged in parallel spaced-apart rows with the ends thereof fitted into transverse elongated grooves extending within a pair of elongated cross-piece end members. The driver is fixed together in a precise manner by flowing an adhesive material into the grooves, and then by allowing such material to harden.
    Type: Grant
    Filed: December 20, 1984
    Date of Patent: August 12, 1986
    Assignee: LFF & Associates
    Inventor: David A. Larson
  • Patent number: 4427354
    Abstract: A tinsel facetting apparatus and method for use in facetting a metallized polyvinyl chloride (PVC) strip including a pair of serrated rolls having a thermal element located in each roll. The PVC strip is facetted as it travels between the two rolls which are maintained at a predetermined temperature determined by the color of the PVC strip. The apparatus and method further provide for timed slitting of the PVC strip into spaced sections constituting facetted icicles, each spaced section separated from the next by a header portion and timed cutting the PVC strip into segments including a spaced section and an unslit header portion so the facetted icicles hang freely from the header portion.
    Type: Grant
    Filed: July 27, 1981
    Date of Patent: January 24, 1984
    Assignee: Decor Noel Corp.
    Inventors: Harold S. Roberts, Zigfried Weber
  • Patent number: 4385087
    Abstract: A tinsel facetting apparatus and method for use in facetting a metallized polyvinyl chloride (PVC) strip including a pair of serrated rolls having a thermal element located in each roll. The PVC strip is facetted as it travels between the two rolls which are maintained at a predetermined temperature determined by the color of the PVC strip. The apparatus and method further provide for timed slitting of the PVC strip into spaced sections constituting facetted icicles, each spaced section separated from the next by a header portion and timed cutting the PVC strip into segments including a spaced section and an unslit header portion so the facetted icicles hang freely from the header portion.
    Type: Grant
    Filed: April 6, 1979
    Date of Patent: May 24, 1983
    Inventors: Harold S. Roberts, Zigfried Weber
  • Patent number: 4268341
    Abstract: A changeover system for a corrugator designed to halt the corrugator during the changeover to diminish paper loss. When the corrugator is halted, a traveling knife severs the combined webs adjacent the beginning of the steam table run. The slitter scorer and the cutoff are changed and the corrugator is restarted. The traveling knife which severs the combined webs may operate above the steam table or below the steam table; alternate forms may be used.
    Type: Grant
    Filed: July 12, 1978
    Date of Patent: May 19, 1981
    Assignee: S&S Corrugated Paper Machinery Co. Inc.
    Inventor: Paul Huhne
  • Patent number: 4243366
    Abstract: A method of affecting the tail end of a roll of plastic film to render it readily identifiable and easy to grasp and start without tearing the film web into strips. The tail end of the film is embossed on-line as it is separated and about to be wound up on a roll core. The method is accomplished by securing the tail end between a heated surface on the upstream side of a knife on a cut-off roll and a lifting and embossment mechanism to provide a wide embossment across the tail end of the film at about the time it is severed from the film stock. The method produces a novel puckered tail, particularly for highly oriented films where tension is relieved while the tail end is still heated.
    Type: Grant
    Filed: September 17, 1979
    Date of Patent: January 6, 1981
    Assignee: The Dow Chemical Company
    Inventors: Lloyd E. Lefevre, Mark A. Wegenka
  • Patent number: 4211131
    Abstract: A method of cutting corrugated material into a plurality of channel shaped bodies in which the material is conveyed by means of guide members parallel to a path along which the material is conveyed. The path is perpendicular to the channels defined by the corrugations and the walls of the channels are severed while the corrugated material is held by the guide members.
    Type: Grant
    Filed: May 3, 1978
    Date of Patent: July 8, 1980
    Assignee: Fibreglass Limited
    Inventors: Cyril P. Fenn, William H. Thelwell
  • Patent number: 4184831
    Abstract: A synthetic plastic drain pipe comprising a continuous pipe of plastic material having transverse, angular or helical corrugations, said pipe having openings for the entry of water, said openings being disposed in said pipe at regular repeating intervals between corrugated lengths of pipe at least at every 20 cm, preferably 30-50 cm, said pipe being free of any opening between said intervals; an apparatus for producing such a synthetic drain pipe, particularly a pipe having distinct portions of general cross section wherein on said portions there are longitudinally running grooves through which there are disposed openings, said apparatus comprising an extruder having an extrusion head, said extrusion head having a generally annular opening defined by a generally circular die disposed about a generally circular mandrel, said apparatus having in general axial alignment with said opening a pair of endless traveling means in the form of a mold train, each of which traveling means carries cooperating mold halves w
    Type: Grant
    Filed: June 9, 1976
    Date of Patent: January 22, 1980
    Inventors: Wilhelm Hegler, Ralph-Peter Hegler
  • Patent number: 4089627
    Abstract: A device for the production of corrugated, protective separators for batteries which are made of woven polyester material. The device is provided with two alternating sets of shaping rods and two sets of clamping jaws which are movable in both the vertical and lateral direction. A third set of jaws is movable only in the vertical direction. The shaping rods are inserted into alternating channels in the material while the material is securely held by the clamping jaws and the material is hardened by means of a furnace. Once the channels are heat set, the shaping rods are withdrawn and the separator is severed by means of a cutting unit. A new piece of material is then positioned for similar fabrication.
    Type: Grant
    Filed: September 22, 1975
    Date of Patent: May 16, 1978
    Assignee: DSO "Balkankar"
    Inventors: Georgi Nikolov Mishev, Iliya Stoilkov Haralampiev
  • Patent number: 4072551
    Abstract: Pharmaceutical dosage forms comprising an edible web having deposited thereon or at least partially thereon a particulate medicament, the webs being thereafter fabricated and finished to pharmaceutically elegant solid dosage forms having no medicament exposed on an exterior surface. The dosage forms have a consistency of release of medicament which can be controlled to exacting specifications. The disclosed solid dosage forms are prepared by high speed automated equipment and the process by which they are made is characterized by non-destructive quality control analysis and performance evaluation both conducted on-line and integrated into the manufacturing operation. Included in the scope of the disclosed invention are certain apparatus and methods of manufacture.
    Type: Grant
    Filed: February 7, 1977
    Date of Patent: February 7, 1978
    Assignee: Hoffman-La Roche Inc.
    Inventors: Dennis J. Dabal, Joseph J. Williams