Corrugating Platens Or Dies Patents (Class 425/396)
  • Publication number: 20150104614
    Abstract: A method of forming a continuous sheet of pleated, hook-form, fastener product includes training a substrate about a pressure roll having an outer surface defining circumferential grooves. As the substrate approaches a nip between the pressure roll and a mold roll calendered with the pressure roll, a portion of the substrate is disposed within a corresponding one of the grooves between the pressure roll and a stationary horn extending into the groove whereby a longitudinally-extending pleat is formed in the substrate. The pleated substrate is then passed through the nip where resin regions are laminated to a side of the substrate opposed to the pleat.
    Type: Application
    Filed: October 1, 2014
    Publication date: April 16, 2015
    Inventor: Christopher M. Gallant
  • Patent number: 8944800
    Abstract: A kitchen tool applies texture to gnocchi or gnocchetti. The kitchen tool has a bottom surface defining a plurality of parallel longitudinal ridges. Serrations on the longitudinal ridges help the longitudinal ridges to grip a ball of dough. A cross ridge is generally normal to the longitudinal ridges and depends below the longitudinal ridges. Sides depend below the cross ridge and the longitudinal ridges. The kitchen tool may be a part of a kit that also includes a dry dough mix. A method of using the tool also is provided.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: February 3, 2015
    Inventor: Richard R. Riggio
  • Publication number: 20140367893
    Abstract: A method for forming a polycarbonate panel, the method comprising the steps of cutting a flat polycarbonate panel to the desired final dimensions, inserting the panel between the two portions of a die, forming the panel by means of compression between the two portions of the die, overbending the panel between 1-12 degrees to achieve a predetermined angle of bends in the panel and repeating these steps until the panel is fully corrugated. The method further includes the steps of heating the die and/or the panel by means of an electric strip temperature of between 100-110 degrees Fahrenheit. An apparatus is also provided for forming a polycarbonate panel. The apparatus includes a die where the die includes a first portion and a second portion. The die being automatically adjustable in height and width. The first portion and the second portion movable with respect to each other and the first portion and the second portion operable to compress and overbend a panel to form a bend in the panel.
    Type: Application
    Filed: June 18, 2014
    Publication date: December 18, 2014
    Inventors: Stephen J. Motosko, Stephen J., Motosko, III, Catherine Motosko
  • Publication number: 20140360132
    Abstract: Provided are methods, systems and apparatuses for producing delivery devices, for example, for oral intake of an agent. In the broadest aspect, the method can include assembling one or more layers including one or more materials with an agent or an agent-releasing formulation to form an integrated, for example a laminated, device; folding the integrated delivery device to form a folded integrated delivery device; and at least partially enclosing the fold delivery device to a form suitable for oral delivery. The integrated device can include a first external layer of a first material; a frame of a second material mounted on the first external layer; an agent-releasing formulation housed within the frame; and a second external layer of the first material mounted on the frame.
    Type: Application
    Filed: June 16, 2014
    Publication date: December 11, 2014
    Applicant: INTEC PHARMA LTD.
    Inventors: Moshe TSABARI, Avner BALSHEY, Erez YOFE, Michael FRIEDMAN
  • Patent number: 8899956
    Abstract: A device for producing pipes made of thermoplastic with annular transverse profilings with a cross section in the form of undulation peaks and undulation troughs has half-molds, which complete one another pairwise along a straight mold section to form a closed mold, which can be moved in a movement direction. Projecting into the mold is an extrusion tool, which has a nozzle support body. To produce an adequate seal between the half-molds and nozzle support body, the latter is covered with exchangeably attached hollow half-shells, which form a cylindrical external face.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: December 2, 2014
    Inventor: Ralph Hegler
  • Publication number: 20140239548
    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: Application
    Filed: May 6, 2014
    Publication date: August 28, 2014
    Applicant: HBK Family, LLC
    Inventor: Herbert B. Kohler
  • Patent number: 8814556
    Abstract: A method for manufacturing a sheet having a shape transferred thereon, in which a sheet-like base made of a thermoplastic resin is placed between an imprint mold and an intermediate base and the sheet-like base is then pressed by a pair of pressing plates to imprint the shape of surface irregularity of the imprint mold to the sheet-like base. The sheet-like base is pressed such that, when pressing force of the pressing plates is maximum, an imprinting pressure difference is present in an imprinting surface of the imprint mold, a maximum imprinting pressure section is present in the imprinting surface, and a portion where the imprinting pressure is minimum is not present in the imprinting surface. The method achieves uniform and highly accurate shape transfer without trapping of air.
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: August 26, 2014
    Assignee: Toray Industries, Inc
    Inventors: Yuma Hirai, Kiyoshi Minoura, Fumiyasu Nomura
  • Patent number: 8794948
    Abstract: An apparatus for the continuous production of a twin wall pipe has mold block halves supplied in pairs to form a mold, and a pipe head, which has an external nozzle for the extrusion of an external hose and an internal nozzle for the extrusion of an internal hose. A support air and venting channel which is annular-cylindrical and concentric with respect to the center longitudinal axis of the pipe head opens out between the external nozzle and internal nozzle.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: August 5, 2014
    Inventor: Ralph Peter Hegler
  • Patent number: 8790561
    Abstract: Various embodiments herein include utilities for generating embosser drums that are used to pre-format optical media such as optical tape with a pattern of nanostructures such as wobbled grooves. One utility includes generating a plurality of replicas from an embossing master and bonding the replicas together to form a bonded replica structure having a surface with the nanostructure pattern imprinted therein and a surface area that is approximately the same as an outer embossing surface of the embosser drum to be formed. Advantageously, a single, one-piece metallic shim can subsequently be generated, appropriately shaped and welded at a single seam to form the embosser drum outer embossing surface.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: July 29, 2014
    Assignee: Oracle International Corporation
    Inventors: Faramarz Mahnad, Joseph J. Kozak
  • Patent number: 8771572
    Abstract: Various embodiments herein include utilities for generating embosser drums that are used to pre-format optical media such as optical tape with a pattern of nanostructures such as wobbled grooves. One utility includes generating a plurality of replicas from an embossing master, bonding the replicas together to form a bonded replica structure having a surface with the nanostructure pattern imprinted therein, creating a replica of the bonded replica structure and electroforming a metallic layer onto the bonded replica structure replica to create a single, one piece, metallic shim which can be used to create a weld-less embosser drum.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: July 8, 2014
    Assignee: Oracle International Corporation
    Inventors: Faramarz Mahnad, Joseph J. Kozak
  • Patent number: 8727760
    Abstract: An apparatus for producing thermoplastic corrugated pipes may include an extrusion device with an extruder and an extrusion die device and a corrugator device with traveling mold jaws. The extrusion device and the corrugator device are positionally movable in relation to one another, for example for adjustment. The extrusion device is positionally movable in relation to the corrugator device in a horizontal plane, while the corrugator device is movable exclusively in height here.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: May 20, 2014
    Assignee: Unicor GmbH
    Inventor: Gerhard Neubauer
  • Patent number: 8702417
    Abstract: Tooling aids for applying pressure in laminating, and methods for their use, are described herein. In one embodiment, a caul for applying pressure in laminating includes a base portion positioned between first and second corner portions. The base portion can have a curved shape when it is in a relaxed state, but it moves to a flatter shape when subjected to pressure during lamination. Movement of the base portion to the flatter shape causes the first and second corner portions to move outwardly and away from the base portion. In this manner, the caul can be used to compact laminating materials into corner regions of a corresponding female mold surface.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: April 22, 2014
    Assignee: The Boeing Company
    Inventor: Steven F. Hanson
  • Patent number: 8579624
    Abstract: A system is disclosed for manufacturing multi-wall corrugated polymer pipe. The system includes an extruder configured to co-extrude concentric annular tubes; a corrugator configured to form the concentric annular tubes into a dual-wall pipe having a smooth wall and a corrugated wall; a cross-head die configured to extrude an outer wall of pipe onto the corrugated wall of the dual-wall pipe; a vacuum punch configured to penetrate the outer wall of pipe and draw a vacuum between the corrugated wall and the outer wall, such that the outer wall of pipe deforms inward toward the corrugated wall of pipe between bell and spigot portions of the corrugated wall; and a cutter configured to cut the pipe into sections where the vacuum punch deformed the outer wall between the bell and spigot portions of the corrugated wall. A method of manufacturing multi-wall corrugated polymer pipe is also disclosed.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: November 12, 2013
    Assignee: Advanced Drainage Systems, Inc.
    Inventors: Gerald S. Sutton, David J. Kelley, Randall A. Kolbet
  • Patent number: 8545210
    Abstract: The invention relates to a method and device with which it is possible to arrange complicated shapes with considerable differences in height in wood fiber board, and in particular but not exclusively so called MDF (Medium Density Fiberboard). The deformation of the wood fiber board which can be achieved is known in the art as extrusion, wherein a considerable plastic deformation takes place accompanied by flow and stretch of the material.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: October 1, 2013
    Assignee: Masonite International Corporation
    Inventors: Maurice Frankefort, Alex Charles
  • Patent number: 8500432
    Abstract: A corrugator device for shaping thermoplastic corrugated pipes from a tube of molten plastics material emerging from an extrusion device may include molding jaws, grippers for returning the molding jaws from the end of a molding section to the start of the molding section, and a mold release device. The mold release device is arranged at the end of the molding section, and has a motor-driven rotary disk for interacting with the pair of molding jaws. The pair of molding jaws, which has reached the end of the molding sections, is moved apart by means of first and second drivers formed on the motor driven rotary disk.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: August 6, 2013
    Assignee: Unicor GmbH
    Inventor: Stefan Fösel
  • Patent number: 8430659
    Abstract: A corrugator device for shaping thermoplastic corrugated pipes out of a molten plastic tube issuing from an extrusion device may include moving molding jaws which circulate in a linear molding section and are arranged in paired successive relationship in the molding section forming a molding passage. The pairs of molding jaws may be formed from left-hand and right-hand molding jaws and between them enclose a cylindrical mold cavity to form the molding passage. The device may include a gripper device for guiding the molding jaws from the end of the molding section back to the start of the molding section, and having grippers respectively for the left-hand and the right-hand molding jaws, each with a separate guide and drive device.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: April 30, 2013
    Assignee: Unicor GmbH
    Inventor: Stefan Fösel
  • Patent number: 8419992
    Abstract: This invention provides a mold for a gasket, which can render the planar shape of a mold for integral molding of a large-diameter gasket as small as possible to reduce the size of the manufacturing equipment and, at the same time, by virtue of integral molding, does not require labor and time in the manufacture thereof and does not cause a lack of strength in the connecting part. To this end, a mold (1) for molding an endless-type gasket comprises a plurality of molding parts (11,21), formed by disposing two molding grooves (12, 22), in a spiral wound form, in parallel so as to be adjacent to each other. The spiral wound molding grooves (12, 22) have reversing parts (14, 24) in their respective inner ends (13, 23), and, at the same time, their outer ends (15, 25) are connected to each other in a rope form.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: April 16, 2013
    Assignee: NOK Corporation
    Inventors: Kazuyuki Asai, Daihachi Shojima, Kenta Kohatsu
  • Patent number: 8366434
    Abstract: Sets of lithographic templates providing improved lithographic alignment are described. The sets include at least two templates. The first template has an array of first geometries and the second template has an array of second geometries. The second geometries correspond to the first geometries and at least one second geometry is intentionally offset from its corresponding first geometry.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: February 5, 2013
    Assignee: Molecular Imprints, Inc.
    Inventor: Ronald D. Voisin
  • Patent number: 8167603
    Abstract: The invention under consideration concerns a device for the production of corrugated pipes made of thermoplastic, in which mold jaws, which complement each other in pairs, are conducted jointly in a cycle along a mold section that leads away from an extruder head; they are moved apart at the end of the mold section and are returned to its beginning separately from one another with a mold section device for the movement of the mold jaws along the mold section, which has a supporting table with drive means for the mold jaws on the mold section, and with a return conveying device for the return conveyance of the mold jaws from the end of the mold section to its beginning, which has an outlet assembly to move apart the mold jaws at the end of the mold section and/or an inlet assembly to move in the mold jaws at the beginning of the mold section.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: May 1, 2012
    Assignee: Drossbach GmbH & Co. KG
    Inventors: Claus Hetzner, Michael Hurler
  • Patent number: 8167606
    Abstract: Disclosed herein is an apparatus and method for forming a panel. The apparatus includes a first mold unit may include a right-angled upper mold provided on the front portion of an upper mold to reciprocate vertically, and a right-angled lower mold provided on the front portion of a lower mold, thus compressing base materials to impart a pattern of a right triangular waveform. A second mold unit may include an obtuse upper mold provided on the central portion of the upper mold to reciprocate in a direction inclined relative to a progressing direction of the base materials, and an obtuse lower mold provided on the central portion of the lower mold, thus compressing the base materials to impart a pattern of an obtuse triangular waveform. A third mold unit may be provided behind the second mold unit and linearly presses the base materials in a direction from front to rear.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: May 1, 2012
    Assignee: Micro Contact Solution Co, Ltd.
    Inventor: Seung Eun Yang
  • Patent number: 8118584
    Abstract: A carrier tape forming apparatus includes a tape paying-out unit for paying out a tape to be worked, a tape feeding unit for feeding the tape, a forming unit for effecting embossing on the tape, a perforating unit for perforating at least a feeding hole in the tape, and a tape taking-up unit for taking up the finished (embossed) tape thereabout. The apparatus includes also double-acting driving units provided as driving sources at least for the tape feeding unit, the forming unit and the tape taking-up unit, each driving unit being fluid-operated and movable along a straight path and a controller for independently controlling driving/stopping of the double-acting driving units for the forming unit and the tape taking-up unit in association with driving/stopping of said double-acting driving unit for the feeding unit.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: February 21, 2012
    Assignee: Sumitomo Bakelite Company Limited
    Inventors: Noriaki Yukawa, Hiroshi Otsuka
  • Patent number: 8075832
    Abstract: A solution casting apparatus includes a drive roller as a conveying means. The drive roller conveys a polymer film peeled from a belt, the polymer film still containing a solvent. The drive roller has corrugation valleys and corrugation peaks formed on a peripheral surface along a circumferential direction of the drive roller. Each of the corrugation valleys and the corrugation peaks has a substantially semicircular cross section. The corrugation valleys and the corrugation peaks are disposed alternately in an axial direction of the drive roller. A pitch Pv between the corrugation valleys and a pitch Pm between the corrugation peaks are in the range of 0.01 to 2 mm, and a height Hv-m from a lowest point of the corrugation valley to a highest point of the corrugation peak is in the range of 0.01 to 1 mm. A curvature radius Rv of the corrugation valley and a curvature radius Rm of the corrugation peak are in the range of 0.1 to 0.5 mm.
    Type: Grant
    Filed: January 2, 2009
    Date of Patent: December 13, 2011
    Assignee: FUJIFILM Corporation
    Inventors: Ryuhei Yoshida, Shinji Hikita, Hiroki Sato
  • Publication number: 20110074054
    Abstract: In an optical waveguide, the present invention provides a process for producing an optical waveguide, and a stamp for use in the production process, in which the thickness of a lower cladding layer in the portion positioned in the lower side of a core layer is easily controlled even if any one or more materials of a substrate, a cladding material, and a stamp are material with low rigidity. The production process of the present invention comprises steps of forming a lower cladding layer which has a core groove and spacer grooves formed substantially in parallel with intervals in both sides of the core groove on a substrate by making use of soft lithography with a second stamp (i.e.
    Type: Application
    Filed: June 1, 2009
    Publication date: March 31, 2011
    Inventors: Kozo Tajiri, Tomomi Makino
  • Patent number: 7798796
    Abstract: The pipe molding system includes a separable cooling plug and an automatic procedure to alleviate problems associated with excess plastic continuing to extrude after a sudden shutdown of the extrusion system. The separable cooling plug and shutdown procedure includes accommodating any excess plastic in a created void between the cooling plug and the extruder. This arrangement simplifies removal of the excess plastic and reduces the time required to return the equipment to normal production. Preferably, a controller monitors operating conditions of the system and automatically releases the cooling plug based on the monitored operating conditions.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: September 21, 2010
    Inventors: Manfred A. A. Lupke, Stefan A. Lupke
  • Patent number: 7695267
    Abstract: A rib forming apparatus has an elongated support table, a supply of thermoplastic sheet material over the table, a transporting means having at least two transverse carriages mounted on the table to slide along longitudinal edges thereof, a thermal means mounted on one of the carriages for locally heating the sheet material in preparation of a molding press, and at least one press module mounted on another carriage and having a reciprocating press blade positioned at one flat side of the sheet material and a couple of swiveling press blades positioned at the opposite flat side of the sheet material and movable toward the reciprocating press blade to mold the heated section of the sheet material by closing the above three press blades toward each other, whereby a series of vertical rib folds are formed transversely of the sheet material and advanced by the transport means through the closed press blades.
    Type: Grant
    Filed: July 29, 2006
    Date of Patent: April 13, 2010
    Assignee: Dynaflex International
    Inventor: Bill Dworzan
  • Patent number: 7691313
    Abstract: The present invention is directed towards a method and a system of expelling a gas positioned between a substrate and a mold, the substrate and the mold further having a liquid positioned therebetween.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: April 6, 2010
    Assignee: Molecular Imprints, Inc.
    Inventors: Byung-Jin Choi, Sidlgata V. Sreenivasan, Ian M. McMackin, Pankaj B. Lad
  • Patent number: 7641840
    Abstract: The present invention is directed towards a method of expelling a gas positioned between a substrate and a mold, the substrate and the mold further having a liquid positioned therebetween.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: January 5, 2010
    Assignee: Molecular Imprints, Inc.
    Inventors: Byung-Jin Choi, Mahadevan GanapathiSubramanian, Yeong-jun Choi, Mario J. Meissl
  • Patent number: 7524177
    Abstract: A pipe mold (1) produces plastic pipe with an internal wall having a first wall portion (23, 25) and a second wall portion (27). The pipe mold (1) includes a two stage cooling plug (35) to assist in setting the pipe wall. The first cooling stage (37) is controlled to remove heat from the pipe wall to partially set the plastic without excessive cooling. The partially set plastic pipe then passes over a second stage (39) where less precision in the cooling of the pipe occurs. The partially set plastic is more tolerant and subject to less damage. Preferably both the first and second stages (37, 39) include separate temperature sensors (120, 122) and control arrangements (124, 126) for varying the cooling medium of each stage. In a preferred embodiment a cooling medium is circulated through a first stage at a temperature and at a flow rate to maintain the first stage (37) within a narrow temperature range about the temperature of the cooling medium.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: April 28, 2009
    Inventors: Manfred A. A. Lupke, Stefan A. Lupke
  • Patent number: 7517209
    Abstract: A pipe molding apparatus includes a plurality of mold blocks (9) which move along a molding path to form double wall plastic pipe having an outer pipe wall with corrugations which set outside diameter of the pipe and an inner wall around a bore through the pipe. The mold blocks (9) have profiled faces which determine shape of the pipe. The profiled faces are reconfigureable in profile between first depth of the corrugations and diameter of the bore through the pipe without varying external diameter and while maintaining essentially constant wall thickness of the pipe.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: April 14, 2009
    Inventors: Manfred A. A. Lupke, Stefan A. Lupke
  • Patent number: 7517210
    Abstract: An apparatus for the manufacture of compound pipes with an oval cross-section is equipped with mold halves which advance in a direction of production and of which two at a time combine as a pair on a molding path to form one mold. An injection head of at least one extruder is arranged upstream of the molding path. An external nozzle used for the creation of an external tube is substantially circular in shape and is located at a distance upstream of the molding path. An internal nozzle with a cross-section similar to the oval cross-section of the pipe to be created is located inside the molding path. When entering the molding path, the external tube extruded through the external nozzle is expanded in one direction and pressed together in a direction which is perpendicular to the former.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: April 14, 2009
    Inventor: Ralph Peter Hegler
  • Patent number: 7488169
    Abstract: A three-dimensional structure, and a method and device for producing the structure, where the structure has pressure resistant characteristics despite its voluminous and elastic nature and has higher resistance to surface wear and mechanical dimensional stability than a foamed polyethylene sheet. The three-dimensional structure is characterized in that a resin sheet has needle-like projections on its both faces, each projection has a height (H) of 3 mm or more, the height (H) and a width (W) of the projection at the height of H/2 has a relationship of H?2.5 W, the projection has a hole in its tip, and the projections are joined to a sheet-like object at their tops.
    Type: Grant
    Filed: February 19, 2004
    Date of Patent: February 10, 2009
    Assignee: Kawakami Sangyo Co., Ltd.
    Inventors: Seijyu Keduka, Hajime Kawakami
  • Patent number: 7487658
    Abstract: The invention can be defined in its most general form as a device for sheet material corrugation by means of bending and can be used in production of light core for sandwich panels, and elements of heat-exchange apparatus. The device includes the pivotedly connected in-between shaping and auxiliary systems of dies (4) and the drive for their transformation including the system of vacuumization and the chamber (3) made of flexible gas-proof material where the latter of said systems is fixed. Used to set the system of shaping dies (4) into its initial plane state is the mechanism made in the form of rigid chamber with the perforated cap (2) providing the possibility to connect the chamber to the system of vacuumization. The device also includes the subsidiary flexible removable vacuum chamber (8) wherein the blank (6) from sheet material is placed in contact with the shaping system of dies (4).
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: February 10, 2009
    Assignees: Airbus, Otkrytoe Aktsionernoe Obschestvo “Kazansky Nauchno-Isledovatelsky Institut Aviatsionnoi Tekhnologii”
    Inventors: Niaz Irekovich Akishev, Ildus Muhametgaleevich Zakirov, Alexandr Vladimirovich Nikitin
  • Patent number: 7458802
    Abstract: The invention can be defined in its most general form as a device for sheet material corrugation by means of bending and can be applied in the devices for production of single curvature folded core used in production of aircraft and craft curvilinear panels. The invention has for its object to broaden the technological capabilities. For that the mandrel is made in the form of a set of alternating rows of plane elements (4, 6, 7) made in the form of trapeziums (4) and isosceles triangles (6, 7) fixed on the flexible material of the base (5) forming thus the gap-pivots between the elements. At the same time the bases of the triangular elements (6, 7) face each other in pairs along the bending lines while said bending lines correspond to the protrusions lines of the core folded structure. The base of the triangular elements (6, 7) is the function of the folded core block curvature radius and the geometrical parameters of the zigzag crimp structure.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: December 2, 2008
    Assignees: Airbus, Otkrytoe Aktsionernoe Obschestvo “Kazansky Nauchno-Isledovatelsky Institut Aviatsionnoi Tekhnologii”
    Inventors: Niaz Irekovich Akishev, Ildus Muhametgaleevich Zakirov, Alexandr Vladimirovich Nikitin
  • Patent number: 7429171
    Abstract: The device contains the transformable mandrel (12) made of plane elements (14) pivotedly connected in-between with the use of gas-proof fabric (15,16), the means for preliminary and final mandrel transformation including the flexible vacuum chamber and traverse-pusher (11) with the drive (10), and the mechanism for putting the transformable mandrel into its initial plan state made in the form of two parallel slabs (6, 7) with the drive for their reciprocal travel (9). The means for preliminary mandrel transformation is made in the form of the system of pushers placed in rows on the lower and the upper slabs with individual drives. The perforations in the slabs provide the possibility for the pushers to interact with the transformable mandrel placed between the slabs whereas the mandrel with sheet blank article is put into the vacuum chamber.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: September 30, 2008
    Assignees: Airbus, Otkrytoe Aktsionernoe Obschestvo
    Inventors: Niaz Irekovich Akishev, Ildus Muhametgaleevich Zakirov, Alexandr Vladimirovich Nikitin
  • Patent number: 7306448
    Abstract: A half-mold for a corrugator for making pipes with transverse ribs. The half-mold comprises two sides located spaced apart from each other and a semi-cylindrical base surface linking the two sides. Directly mounted forming elements bent in the shape of a semicircle which define the outer surface of the pipe with transverse ribs are removably fixed on the base surface. The directly mounted forming elements bent in the shape of a semicircle are removably fixed with fixing elements on the half-mold.
    Type: Grant
    Filed: August 10, 2002
    Date of Patent: December 11, 2007
    Assignee: Unicor GmbH Rahn Plastmaschinen
    Inventors: Gerhard Neubauer, Klaus Kaufmann
  • Patent number: 7267535
    Abstract: An extruding apparatus which extrudes continuous length of hollow plastic product has an extruder (3) which feeds molten plastic through die equipment (5) to a mold tunnel (7) formed by side by side moving mold blocks (9). The apparatus includes air turbulence internally of the product within the mold tunnel to assist in setting shape of the product. The air turbulence is provided by an air moving member (17) located internally of the product within the mold tunnel and a power source for the air moving member. The power source is located externally of the mold tunnel and a power transfer is provided to feed power from the power source through the die equipment to the air moving member without cooling of the die equipment.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: September 11, 2007
    Inventors: Manfred A. Lupke, Stefan A. Lupke
  • Patent number: 7264462
    Abstract: A consolidated cellulosic article of increased thickness and target face density, as well as an apparatus and method of manufacturing same, are disclosed. The apparatus includes first and second dies adapted to move toward one another with a mat of cellulosic material and a binding agent therebetween. When the dies move together, the mat is compressed under pressure and heat with forms on one of the dies forming indentations in the mat. Compression zones of increased density form between the indentations and a first face of the mat. By spacing the forms appropriately, the compression zones overlap, and the first face of the resulting consolidated board is provided with substantially uniform density. Since the entire board is not compressed to the same degree, its overall thickness is enhanced while the density of the first face of the mat is increased, and relatively little material is used.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: September 4, 2007
    Assignee: Masonite Corporation
    Inventor: Dennis H. Vaders
  • Patent number: 7220114
    Abstract: The present invention relates to a process and equipment for producing a molded article, especially a flat molded article, which has cavities and webs between the cavities, which webs essentially join two disks, wherein the equipment includes a press mold with a die, which forms the outer circumference of the molded article, and two rams, which are arranged as a lower ram and an upper ram and form the outer surfaces of the disks.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: May 22, 2007
    Assignee: KOMAGE-Gellner Maschinenfabrik KG
    Inventor: Hans-Georg Seimetz
  • Patent number: 7214051
    Abstract: A device for manufacturing a double-walled thermoplastic pipe with a connecting sleeve has a molding tunnel with a succession of molds for forming a corrugated molding wall and a connecting sleeve, respectively. An extrusion device extrudes a first flexible tube into said molding tunnel and a second flexible tube into said first flexible tube. A first gas channel is arranged for generating a pressure between said first and second flexible tubes. A compressed-gas control device is connected to said first gas channel for generating a pressure p1 or a pressure p2 in said space between said first and second flexible tubes by compressed air emerging from said first gas channel. A second compressed-gas control device is connected to a second gas channel for guiding compressed gas onto an inner side of said second flexible tube. Said first pressure controller is connected to said first gas channel via a compressed-gas line that is connected to an additional compressed-gas reservoir for gas exchange therewith.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: May 8, 2007
    Inventors: Manfred Arno Alfred Lupke, Stefan A. Lupke
  • Patent number: 7207791
    Abstract: Described is an apparatus for the production of transversely ribbed tubes comprising mold jaw halves which are movable in a condition of bearing against each other along two guide. The guide paths have a common mold section, a respective return section and two respective direction-changing sections. The respective direction-changing section has a direction-changing member which is linearly movably guidedly arranged on a base element fixed with respect to the machine and which is connected to a compensating device which is provided to compensate for the tolerance play of the mold jaw halves which circulate along the associated guide path, said tolerance play being dependent on the temperature and/or the speed of the mold jaw halves.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: April 24, 2007
    Assignee: Unicor GmbH Rahn Plastmaschinen
    Inventor: Gunther Hofmann
  • Patent number: 7175412
    Abstract: A heat pressing die set for forming embossed designs on garments includes a male and a female die seat on which a silicon and a metal die are respectively supported. The silicon and the metal die are cut according to given designs to form complementary male and female die surfaces. Continuous flat belt zones of a predetermined width are separately provided on the silicon and the metal die corresponding to perimeters of the given designs. When an area of a garment is clamped and heat-pressed between the silicon and metal dies, the given designs are embossed on the garment and surrounded by heat-pressed belts, which visually highlight the embossed designs while protect non-embossed areas on the garment against undesired pull and stretch to therefore upgrade the quality of the embossed designs.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: February 13, 2007
    Inventor: Chin-Chen Lin
  • Patent number: 7172402
    Abstract: Described is a mold jaw half for an apparatus for the production of transversely ribbed tubes, wherein the mold jaw half (16) has end faces and a base face and in its interior a cooling passage with a coolant feed and a coolant discharge, which open at a spacing from each other at the base face of the mold jaw halves. In order to provide a reduced flow resistance for the coolant through the cooling passage and consequently an increased coolant through-put, resulting in an improved cooling action, it is proposed that the coolant feed and the coolant discharge cross, as seen in a direction viewing on to the end faces of the mold jaw halves, and are oriented in opposite relationship with respect to the advance direction of the mold jaw half. That mutually opposite orientation provides that the coolant is virtually shovelled into the cooling passage.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: February 6, 2007
    Assignee: Unicor GmbH Rahn Plastmaschinen
    Inventor: Gunther Hofmann
  • Patent number: 7153117
    Abstract: Described is an apparatus for the production of transversely ribbed tubes, comprising mold jaw halves which are circulatingly moved in a condition of bearing against each other along two endless guide paths by means of a respective associated drive device, wherein the two guide paths have a common mold sections, a respective return section and two respective direction-changing sections. The respective direction-changing section has a direction-changing member provided with an arcuate guide edge. The guide paths along the common mold section and along the return sections have elongate wearing elements comprising a low-wear plastic material, which are exchangeably provided on a base arrangement of the apparatus.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: December 26, 2006
    Assignee: Unicor GmbH Rahn Plastmaschinen
    Inventor: Gunther Hofmann
  • Patent number: 7150622
    Abstract: The present invention is directed toward a system to vary dimensions of a template in order to attenuate if not prevent distortions in an underlying pattern formed by the template. To that end, the system features a compression device that includes a pair of spaced-apart contact members to compress a perimeter surface of the template between the pair of spaced-apart contact members. The compression device includes first and second bodies, each has a contact member and an actuator arm. One of the actuator arms is coupled to the first body to reciprocate about an axis in response to variations of a volume of a bladder disposed adjacent to the actuator arm. In this manner, the distance between the two contact members may be varied.
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: December 19, 2006
    Assignee: Molecular Imprints, Inc.
    Inventors: Byung-Jin Choi, Sidlgata V. Sreenivasan, Mario J. Meissl
  • Patent number: 7118369
    Abstract: The present invention relates to an apparatus for the manufacture of corrugated pipes from thermoplastic in which mould segment halves, which complement one another in pairs, are guided together in a circuit along a mould path adjacent to an injection head, are moved apart at the end of the mould path and are returned back to its start separately from one another. The apparatus has a mould path device to move the mould segment halves along the mould path and a return conveyor to return the mould segment halves from the end of the mould path back to its start, with the mould path device comprising a machine table having a lower guide and lower drive means for the mould segment halves and a cover frame secured to the machine table having an upper guide and upper drive means for the mould segment halves.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: October 10, 2006
    Assignee: Drossbach GmbH & Co. KG
    Inventors: Karl Dietrich, Michael Hurler
  • 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: 7001171
    Abstract: A corrugator and mold management apparatus and methods for continuously forming transverse corrugations and other shapes in a tubular polymer melt parison formed by an extrusion die employs a plurality of molds that interlock when mated. Each mold has common outside dimensions and a pair of open linear bearings that provide the mold axis and maintain alignment of the molds parallel to and in the same horizontal plane as the axis of the extrusion die. The molds are moved axially along supported rails by bi-directional linear actuating modules and between the pairs of supported rails by lateral transport units. Inner supported rails define the mold tunnel and outer supported rails provide an outer path to move molds upstream back toward the extrusion die. The lateral transport units include extensible rails that facilitate the transfer of molds to and from the mold tunnel and the outer return paths. Delivery units remove from and introduce molds from a plurality of parking stations.
    Type: Grant
    Filed: February 19, 2001
    Date of Patent: February 21, 2006
    Inventor: Joseph M. Starita
  • Patent number: 6986862
    Abstract: A vulcanization mold (2) includes several segments (8a, 8b; 10a, 10b; 12a, 12b; 14a, 14b) which define two end profiles (8, 10) and two inner profile shells (12, 14) having concave surfaces. With synchronous movement sequences, which take place via linear controls from both ends, the segments (8a, 8b; 10a, 10b; 12a, 12b; 14a, 14b) are moved together under simultaneous shaping pressure. The outer profile shells (8, 10) pass through twice the distance as the inner profile shells (12, 14). The forming of the work blank (20) is completed via the shaping pressure when the mold (2) has reached the closed position. Preferably the upper profile half shells (8a, 10a, 12a, 14a) and the lower profile segments (8b, 10b, 12b, 14b) are operatively connected to each other via toothed racks (40a, 46a, 48a, 54a; 40b, 46b, 48b, 54b) and gear wheels (42a, 44a, 50a, 52a; 42b, 44b, 50b, 52b) including additional sets of teeth (42a?, 50a?; 42b?, 50b?).
    Type: Grant
    Filed: October 21, 2002
    Date of Patent: January 17, 2006
    Assignee: ContiTech Luftfedersysteme GmbH
    Inventors: Wolfgang Gnirk, Manfred Degenhardt, Joachim Muth
  • Patent number: 6939503
    Abstract: A method and an apparatus for the manufacture of pipes of thermoplastics with transverse profile features comprises mold segment halves which are circulated by twos on a molding path. A conveying device of the type of a gantry crane is provided for recirculation of the mold segment halves. On a conveying bridge that bridges the molding path, provision is made for two conveying carriages, which are movable in opposite directions and cross-wise of the direction of production and which have mounted on them a downward conveying arm with a holding device for a respective mold segment half. Provided downstream of the downstream end of the molding path are parking positions for additional mold segment halves, those of which that are closest to the molding path being carriages which are movable out of the path of displacement of the conveying arms.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: September 6, 2005
    Inventor: Ralph Peter Hegler
  • Patent number: 6877976
    Abstract: A ribbed pipe molding apparatus has a die with a plastic flow passage which carries molten plastic from an extruder to a mold for making the ribbed pipe. The plastic flow passage has a downstream flow region which exits at an acute angle through the external surface of the die. The inner wall of the end region which locates downstream of the outer wall of the flow passage in the downstream flow region of the passage has a transition wall part which is also inclined relative to the exterior surface of the die but which is sloped at a angle less than the main part of the downstream flow region of the passage. The transition wall part of the inner wall shapes the mouth of the passage so as to produce a wedging of the plastic flowing through the passage into the mold for extremely efficient production of the ribs on the pipe.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: April 12, 2005
    Inventors: Manfred A. A. Lupke, Stefan A. Lupke