Reshaping Means Utilizing Fluid Pressure Directly Contacting Work Patents (Class 425/503)
  • Patent number: 6000453
    Abstract: A method and apparatus for controlling the thickness of press-cured composite articles during the manufacture thereof. The method includes a preparatory or prefabrication stage wherein prepreg plies are layed up and compacted to form a plurality of laminates that define a final laminate package that defines the uncured configuration of the composite article. The final laminate package may include supplemental ply-packs layed up at the mid-plane or neutral axis of the final laminate package for the purpose of controlling the overall thickness of the final laminate package. The prepreg plies layed up in the preparatory stage have been precut to conform to the final net shape of the composite article, but include a predetermined overbuild in the width dimension to facilitate control of thickness during cure of the final laminate package.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: December 14, 1999
    Assignee: Sikorsky Aircraft Corporation
    Inventor: Geoffrey C. R. Davis
  • Patent number: 5989482
    Abstract: A method and an apparatus for manufacturing a multi-layer bottle by discharging an inner layer parison from a multi-layer die head and pinching a lower portion of the inner layer parison by a pinch apparatus; discharging an outer layer parison which is longer than the inner layer parison; pinching the lower portion of the outer layer parison by a molding mold; and blow molding the inner layer parison. In such a manner, the multi-layer bottle is manufactured. When the multi-layer bottle having an inner layer separating function is manufactured, the inner layer parison and the outer layer parison comprise different resins having no adhesivity to each other.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: November 23, 1999
    Assignee: The Japan Steel Works, Ltd.
    Inventor: Hirofumi Sagawa
  • Patent number: 5980233
    Abstract: An in-mold label applying device for applying a label to an interior of a metal mold for blow molding includes an entering arm composed of a first link portion having a changeable configuration, an applying arm composed of a second link portion having a changeable configuration and also having a shaft in common with the entering arm on a distal end thereof, and a label fitting portion provided on a distal end of the applying arm. When the entering arm advances toward the metal mold while changing in configuration, the applying arm also changes in configuration and is operatively associated with the changing configuration of the entering arm. When the configuration of the applying arm changes, the applying arm causes the label fitting portion to move to a prescribed position within the metal mold.
    Type: Grant
    Filed: December 15, 1997
    Date of Patent: November 9, 1999
    Assignee: Kao Corporation
    Inventor: Masayuki Oosaki
  • Patent number: 5975878
    Abstract: A liner for a lateral pipe which leads into a main pipe having at one end a collar for installation at the location where the lateral liner meets the main, the collar extending along the interior of the main seating against the opening of the lateral. The liner mounted in a launching device which includes an adjustable sealing arrangement is installed by everting the liner through an opening in the collar by means of fluid under pressure supplied through a pressure pipe in the launching device, the launcher held in position by the inflatable bladder and against the collar for sealing the lateral/main pipe junction.
    Type: Grant
    Filed: February 9, 1996
    Date of Patent: November 2, 1999
    Assignee: Insituform (Netherlands) B.V.
    Inventors: Eric Wood, deceased, Miranda Jane Bull, executor
  • Patent number: 5919414
    Abstract: The present invention relates to a method for providing at least one insertion label on a tool of a machine, the insertion label being insertable into a mold half of a tool of a plastics processing machine, in particular injection molding machine or deep-drawing machine. In this method insertion labels are punched out of label web material by means of a punching device consisting essentially of a punching plate and a cutting tool. The insertion labels are transferred by a carrier, which belongs to the punching device, to the tool of the machine and are discharged for insertion thereinto. So far a great problem has consisted in performing such a transfer in such a manner that the insertion label is positioned in a sufficiently precise manner without creases.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: July 6, 1999
    Assignee: Systec Engineering Knauer GmbH & Co. KG
    Inventor: Walter Dobler
  • Patent number: 5919498
    Abstract: A method and an apparatus are provided for inserting labels into blow-molded hollow articles. The blow-molding apparatus includes a carrousel mounted to rotate within a support frame. The carrousel carries four multi-cavity molds around a circular mold path. Two blow-molding workstations are disposed next to the mold path in fixed positions relative to the frame. The carrousel is indexed to cause each mold to pause by each workstation, and at a label-insertion station, one time during each carrousel revolution. An in-mold labeler inserts a label into each mold at the label-insertion station. The in-mold labeler includes four picker heads supported on a carriage that shuttles the heads between label dispensing magazines and the mold station path. Each magazine includes a label stack receptacle in which labels rest edgewise, by gravitational force on a pair of label guide surfaces.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: July 6, 1999
    Assignee: R & B Machine Tool Company
    Inventors: Lawrence H. Weber, David M. Johnson
  • Patent number: 5871611
    Abstract: A method for producing a partitioned container of the present invention includes the steps of providing a preform having an interior surface; separately forming an inner wall for insertion into the preform; inserting the inner wall into the preform; preparing for molding and molding the preform and inner wall into the partitioned container; and activating a manner for securing the inner wall to the interior surface of the preform during the step of preparing. A system for forming a partitioned container in accordance with the present invention includes a preform including an interior surface surrounding a cavity; an inner wall formed separately from the preform, the inner wall including a manner for securing to the preform upon the application of heat thereto, and a molding device for molding the preform into the container.
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: February 16, 1999
    Assignee: PepsiCo, Inc.
    Inventor: Emery I Valyi
  • Patent number: 5866172
    Abstract: In the manufacture of composite paperboard/polymer packages, the adhesion between the polymer component and paperboard component can be enhanced by treating the polymer film with a surface treatment, for example, ozone, before the two components are brought together. The present invention is particularly applicable to a blow molding process employing one or more paperboard blanks and a blow molded polymer film.
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: February 2, 1999
    Assignee: Westvaco Corporation
    Inventor: Christopher J. Parks
  • Patent number: 5855838
    Abstract: A method and an apparatus are provided for blow-molding hollow articles. The blow-molding apparatus includes a carrousel mounted to rotate within a support frame. The carrousel carries four molds around a circular mold path. Two blow-molding work stations are disposed next to the mold path in fixed positions relative to the frame. The carrousel is indexed to cause each mold to pause by each work station one time during each carrousel revolution. The molds pause by each work station to allow blow-molding operations to be performed in conjunction with each mold at each work station. At one blow-molding work station, located at the 12:00 position of the mold path, an extruder injects parison into each mold. At the other work station, located in the 9:00 position of the mold path, a take-out mechanism extracts blow molded articles from the molds. The carrousel is additionally indexed, i.e.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: January 5, 1999
    Assignee: R & B Machine Tool Company
    Inventors: Lawrence H. Weber, David M. Johnson
  • Patent number: 5846578
    Abstract: Equipment for producing a component obtained from two sheets of thermoplastic material joined together includes an upper die, a lower die and a passage for delivering a compressed jet of air between the two sheets. The equipment further includes a slide which can move at right angles to the closure direction of the two dies and has a working sheets are urged against a shaping surface formed by the working surfaces of the upper and lower dies and of the slide by the effect of the delivery of compressed air.
    Type: Grant
    Filed: December 13, 1995
    Date of Patent: December 8, 1998
    Inventor: Franco Cesano
  • Patent number: 5816293
    Abstract: The apparatus for installing a repair liner/sleeve within a pipeline includes a rigid tube supported above a manhole or excavation leading to the entry of the pipeline to be repaired. A rigid tube is supported on a plurality of legs aligned above the manhole, with a vertical tube attached to the rigid tube and extending downwardly into the hole. A hollow tubular shoe is attached to the lower end of the vertical tube, and is curved to redirect a liner/bladder assembly from the vertical orientation within the vertical tube to a horizontal orientation aligned with the pipeline to be repaired. The tubular shoe includes a plurality of upper rollers and lower rollers between which the liner/bladder assembly will be directed for reorientation from the vertical tube to the horizontal pipeline. The rigid tube includes a pivotal lid which will seal the upper end of the rigid tube, to permit pressurization of the rigid tube, flexible tube, and shoe.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: October 6, 1998
    Inventor: Larry W. Kiest, Jr.
  • Patent number: 5804127
    Abstract: A laminating blow molding method for making a hollow article includes the steps of forming 1 to 500 fine, holes per an area of 100 cm.sup.2 in a resin sheet by punching to thereby form projections as burrs on one side of the resin sheet, the diameter of the holes being between 0.1 mm and 1 mm; disposing the resin sheet between an outer surface of a parison extruded from a die and a mold so that the one side with the projections faces a cavity face of the mold; closing the mold so that the resin sheet is held between the cavity face of the mold and the outer surface of the parison; and heating the mold to a temperature exceeding a softening temperature of the resin sheet and simultaneously blowing the parison to perform blow molding. Thereafter, the mold is cooled and a molded article is taken out. In the method, the molded article with smooth outer surface can be obtained.
    Type: Grant
    Filed: May 23, 1996
    Date of Patent: September 8, 1998
    Assignee: Ube Industries, Ltd.
    Inventors: Hiroyuki Takatori, Toyoyuki Miyazaki
  • Patent number: 5773540
    Abstract: An improved mold assembly is provided for use in a thermo-forming press having a first and a second platen movably engageable there between. A first die member of the assembly is configured to be carried by the first platen. A second die member is configured to be carried by the second platen, and is constructed and arranged to mate in assembly with the first die member. Aa resilient member is disposed between one of the die members and an associated one of the platens. The compliant member is constructed and arranged to provide compliant engagement between the first and second die as first and second platens on which they are mounted, respectively, are engaged together to form a web of plastic material there between during a thermo-forming cycle.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: June 30, 1998
    Assignee: Irwin Research and Development, Inc.
    Inventors: Jere F. Irwin, Gerald M. Corbin, Dale L. Vantrease
  • Patent number: 5770003
    Abstract: A system for moulding containers in thermoformable and heat-weldable material. The system includes a heating and welding station and a forming and shape-stabilizing station, with at least one welding and forming station in-between, producing progressive forming and shape-stabilizing of the containers.
    Type: Grant
    Filed: July 11, 1995
    Date of Patent: June 23, 1998
    Assignee: Unifill S.p.A.
    Inventors: Roberto Tabaroni, Andrea Bartoli
  • Patent number: 5762858
    Abstract: A process for producing a muffler hose having opposite ends, an intermediate portion having a noise-reducing communication hole, and a noise-reducing expansion chamber. The process includes the steps of fitting a protector at the opposite ends of the hose, and disposing the hose and the protectors in a separable blow-molding mold having a jaw; extruding a tubular parison around the hose and the protectors, closing the blow-molding mold, reducing the parison diametrically at two axially-apart positions by the jaw, clamping the parison around the hose at two axially-opposite positions of the hose, the two axially-opposite positions being intervened by the communication hole, and placing the opposite ends of the parison around the protectors; and blowing air into the parison through one of the protectors, and the communication hole of the hose to expand the parison, thereby forming the expansion chamber.
    Type: Grant
    Filed: February 2, 1996
    Date of Patent: June 9, 1998
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Ituro Maeda, Joji Kasugai, Hidetoshi Ishihara, Masaru Hattori
  • Patent number: 5759593
    Abstract: A method and an apparatus are provided for blow-molding hollow articles. The blow-molding apparatus includes a carrousel mounted to rotate within a support frame. The carrousel carries four molds around a circular mold path. Two blow-molding work stations are disposed next to the mold path in fixed positions relative to the frame. The carrousel is indexed to cause each mold to pause by each work station one time during each carrousel revolution. The molds pause by each work station to allow blow-molding operations to be performed in conjunction with each mold at each work station. At one blow-molding work station, located at the 12:00 position of the mold path, an extruder injects parison into each mold. At the other work station, located in the 9:00 position of the mold path, a take-out mechanism extracts blow molded articles from the molds and places them upright on a conveyor.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: June 2, 1998
    Assignee: R & B Machine Tool Company
    Inventors: Lawrence H. Weber, David M. Johnson
  • Patent number: 5753278
    Abstract: A label pickup mechanism for an in-mold blow molding machine has a rotating magazine system which allows the captive stack of labels to rotate about a center point by sliding on a circular track of a radius common to the base plate of the label magazine and a front plate carried in the label support apparatus. Such rotation prevents the label stack to lose its coordinate position while trying to address label askewness. The label stack is kept compressed against retaining tabs by using label pushers.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: May 19, 1998
    Assignee: Liquid Container L.P.
    Inventor: Albert Aguilar
  • Patent number: 5750067
    Abstract: A method and apparatus for blow molding articles having a circumferential sidewall terminating in a closed top in which at least one preformed solid hoop is partially fused to the circumferential wall of the article and projecting axially above at least a portion of said top end. The entire outer peripheral edge portion of each reinforcing hoop is concentrically placed underneath the extrusion head with a suitable fitting. Thereafter, a tube of soft thermoplastic material is extruded through the totally open central portion of the hoops until the end of the tube overlies the pneumatic nozzles. Each mold half consists of a center sections and intermediate sections that are relatively movable in a direction lengthwise of the mold to enable both engaging the hoops and loosening the blow molded article of the mold. End mold sections slide on an incline to fully close the mold. The semi-cylindrical mold central halves close to radially position the hoops and form a cylindrical mold.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: May 12, 1998
    Inventor: Luiz Henrique Hellbrugge
  • Patent number: 5736166
    Abstract: A flow-through device for use during the installation of an inverted resin impregnated flexible tubular liner in a passageway permitting the flow of fluids through the liner during the curing portion of the installation process is provided. A cylindrical body has an expandable bladder interior sealingly attached to the interior of the tubular body to form a pressure chamber is attached to the trailing end of the liner. Pressurized fluid is supplied to the chamber to inflate the bladder to close the end of the liner. The bladder allows flow through the passageway during curing of the liner, when the effluent pressure exceeds the pressure in the bladder.
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: April 7, 1998
    Assignee: Insituform (Netherlands) B.V.
    Inventor: Richard Carl Polivka
  • Patent number: 5665404
    Abstract: A method and an apparatus are provided for blow-molding hollow articles. The blow-molding apparatus includes a carrousel mounted to rotate within a support frame. The carrousel carries four molds around a circular mold path. Two blow-molding work stations are disposed next to the mold path in fixed positions relative to the frame. The carrousel is indexed to cause each mold to pause by each work station one time during each carrousel revolution. The molds pause by each work station to allow blow-molding operations to be performed in conjunction with each mold at each work station. At one blow-molding work station, located at the 12:00 position of the mold path, an extruder injects parison into each mold. At the other work station, located in the 9:00 position of the mold path, a take-out mechanism extracts blow molded articles from the molds. The carrousel is additionally indexed, i.e.
    Type: Grant
    Filed: December 5, 1995
    Date of Patent: September 9, 1997
    Assignee: R & B Machine Tool Company
    Inventors: Lawrence H. Weber, David M. Johnson
  • Patent number: 5622734
    Abstract: Disclosed is a process for producing a crimp-bonded fibrous cellulosic laminate. The process includes the steps of: 1) providing at least two superposed plies of a fibrous cellulosic material; 2) passing the superposed plies through a crimp roll arrangement including a rotating crimp element and a rotating anvil element; and 3) applying a pressure load against the rotating elements sufficient to crimp bond the fibrous cellulosic material plies into a laminate. The crimp element has protruding members configured in a discontinuous pattern aligned on an axis that is parallel to the cross-machine direction to provide a substantially continuous uniform area of localized surface contacts between the rotating crimp and anvil elements across the width of the plies. Also disclosed is an overall crimp-bonded fibrous cellulosic laminate and an apparatus for crimp-bonding multiple superposed plies of a fibrous cellulosic material.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: April 22, 1997
    Assignee: Kimberly-Clark Corporation
    Inventors: Harry E. Clark, Cynthia W. Henderson, Robert C. Marcinek, Frances W. Mayfield, Thad W. Perkins, Jorg F. Voss
  • Patent number: 5622733
    Abstract: A process for forming composite hollow crown stiffened skins and panels in which a first layer or skin is placed on a forming surface of a female mold and, after forming a plurality of U-shaped stiffener elements in the first skin, a second skin is placed over the first skin, whereupon the resulting assembly is prepared for autoclave curing. The stiffener elements are formed by pressing the first skin into U-shaped depressions in the female mold surface and inserting a hollow, expandable rubber mandrel into each of the depressions on top of the first skin. Valve stems in the mandrels enable maintaining the pressure inside at atmospheric pressure. The mandrels are maintained in their "pressurized" state during subsequent formation and autoclave curing steps.
    Type: Grant
    Filed: October 4, 1994
    Date of Patent: April 22, 1997
    Assignee: Rockwell International Corporation
    Inventor: Don L. Asher
  • Patent number: 5614146
    Abstract: A label L is supplied to an inner surface of a fixed die 6 of an injection molding machine 5. The label is taken from a known label supply device 1 by air suction onto the outer periphery of a pseudo core 2. The pseudo core 2 is pivotally moved from the supply The label is then inserted into the opened fixed die 6 and is stopped at a label delivering position. At this position the label is supplied onto an inner peripheral surface (label retaining part 6a) of the fixed die 6 by air supplied from the air supply device 4B.
    Type: Grant
    Filed: November 14, 1995
    Date of Patent: March 25, 1997
    Assignees: Sumitomo Heavy Industries, Ltd., Yushin Precision Equipment Co., Ltd.
    Inventors: Akio Nakamura, Noboru Tsukuda, Shinichiro Matsushima
  • Patent number: 5601776
    Abstract: The present invention relates to a method and a mould for forming an expansion, such as a socket, in a plastic pipe, and a plastic pipe. According to the method, the heated end of the pipe is placed in an external mould (2) and pressed against the mould surface (6) to form a socket. Two grooves (8, 9) can be formed in the socket by a simple method, using a mould ring (12) which is separate from the other parts (3, 4) of the mould and by means of which the grooves of the socket are formed. The ring is simultaneously locked into the socket (7), thereby functioning as a reinforcement ring.
    Type: Grant
    Filed: September 8, 1994
    Date of Patent: February 11, 1997
    Assignee: Uponor Innovation AB
    Inventor: Ari Tuominen
  • Patent number: 5591472
    Abstract: Bakery dough continuously emergent from a dough-handling machine is cut into successive pieces of uniform weight by apparatus which involves a nozzle containing a downwardly directed extrusion orifice having a shape that is oblong about a line of elongation. A taut cutting wire aligned in a direction parallel to the line of elongation is caused to move in a reciprocating manner across the orifice in a path that is transverse to the line of elongation.
    Type: Grant
    Filed: August 17, 1995
    Date of Patent: January 7, 1997
    Assignee: Cummins Eagle, Inc.
    Inventor: Donald L. Cummins, deceased
  • Patent number: 5580583
    Abstract: A sheeter machine and process is disclosed which eliminates the use of at least one stripper wire or doctor blade wherein the dough, including masa, is worked between pinch rolls rotating at selected, infinitely varying speed ratios enabling controlled differential adhesion characteristics between the dough material being sheeted and the surfaces of the rolls. Variable cutter speed ratios acting with the front roll enable control of the cut product size.
    Type: Grant
    Filed: June 20, 1995
    Date of Patent: December 3, 1996
    Assignee: Heat and Control
    Inventors: Andrew A. Caridis, Anthony A. Caridis, Clark K. Benson, Lawrence F. Klein, Daniel E. Brown
  • Patent number: 5534218
    Abstract: In a process for the production of a hollow body of thermoplastic material which is to include an additional portion, by expansion of a preform in a blow molding mold, the additional portion is connected to the hollow body upon expansion of the preform to form the hollow body. To form the connection between the hollow body and the additional portion, the latter is heated by a heating element which is brought into contact with at least the surface of the additional portion that is to involve the welded connection to the hollow body, prior to expansion of the preform. The heating element is brought into contact with the additional portion when already disposed in the blow molding mold in order in that way to heat at least the appropriate surface of the additional portion to a temperature which premotes the production of an adhesive join to the hollow body. The region of the additional portion that is to be heated is at least substantially covered relative to the outside atmosphere by the heating element.
    Type: Grant
    Filed: October 22, 1993
    Date of Patent: July 9, 1996
    Assignee: Krupp Kautex Maschinenbau GmbH
    Inventors: Werner Daubenbuchel, Alfred Jira
  • Patent number: 5490964
    Abstract: A method for repairing a tubular conduit by lining the inner wall of the tubular conduit with a tubular liner bag impregnated with thermosetting liquid resin, having the steps of: (a) everting the tubular liner bag in the tubular conduit; (b) closing the open end of the tubular liner bag with a stationary lid thereby forming a closed space inside the tubular liner bag and the lid; (c) inserting a heat-resistive hose into the closed space through the lid; (d) inflating the tubular liner bag by charging a pressurized fluid into the closed space; and (e) supplying hot water via the heat-resistive hose to thereby heat and harden the liner bag; wherein the heat-resistive hose is slidably inserted through the lid, and is connected to the lid via a flexible inflatable sealing device such that when the pressurized fluid is charged into the closed space the sealing device is pressed to inflate externally from the lid thereby forcing the heat-resistive hose to slide externally.
    Type: Grant
    Filed: March 15, 1994
    Date of Patent: February 13, 1996
    Assignees: Shonan Gosei-Jushi Seisakusho K.K., Yokoshima & Company, GET, Inc.
    Inventors: Takao Kamiyama, Yasuhiro Yokoshima, Shigeru Endoh
  • Patent number: 5468331
    Abstract: A bend portion of a bonded, laminated article is made substantially free of wrinkling, which results in interlaminar voids and discontinuities, by applying tension to at least one layer of a radially outer portion of a preform of the article during bonding, the tension being applied in a direction away from the bend, typically generally tangentially in respect to an inner portion. The apparatus includes a rigid support to carry the preform bend portion, held to the support to enable application of force or pressure to the outer layer.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: November 21, 1995
    Assignee: General Electric Company
    Inventors: Peter Makarenko, Stacy E. Harris, Robert R. Martin
  • Patent number: 5458479
    Abstract: There are mounted on the carriage (2) which moves alternately between station (4) where the parisons (T) of thermoplastic material and the blowing station (5), two adjacent pairs of moulds (S) with their corresponding means of self-centering opening and closing. The containers (Z) coming from the two scrap-removal stations are taken by a single transverse discharging conveyor (34). The magazines that feed the labels to each pair of moulds are all positioned on the external near side of the machine, where the magazines are aligned in two parallel rows (35-135) and positioned at different levels so that they can easily be inspected and refilled with labels.
    Type: Grant
    Filed: November 8, 1993
    Date of Patent: October 17, 1995
    Assignee: Techne S.p.A.
    Inventor: Moreno Minghetti
  • Patent number: 5374174
    Abstract: An improved apparatus particularly well adapted for installing a liner within a service pipe having an access end and a terminal end, the liner having a part which is everted and then inflated by the insertion of a fluid thereinto, the fluid being thus inserted by way of a conduit movable into the everted liner part by sliding through the eversion apparatus, the apparatus being further provided with appropriately located winches for controlling the movement of that part into and out of the service pipe.
    Type: Grant
    Filed: May 17, 1993
    Date of Patent: December 20, 1994
    Assignee: Insituform (Netherlands) B.V.
    Inventor: Charles A. Long, Jr.
  • Patent number: 5358683
    Abstract: A process for making a continuous fiber reinforced thermoplastic article that is sufficiently strong and rigid for use as a structural member includes the steps of providing a tubular composite parison that has continuous, axially oriented glass fiber filaments dispersed in a thermoplastic resin and admitting pressurized air into the interior of the tubular parison to expand the tubular parison to a desired shape.
    Type: Grant
    Filed: April 8, 1993
    Date of Patent: October 25, 1994
    Assignee: Davidson Textron Inc.
    Inventor: Richard Rhodes
  • Patent number: 5350483
    Abstract: A label inserter and method for supply of labels to a mold of a blow molding machine for the production of in-mold labeled plastic products in which a label carrying, vertically liftable beam extending from a carriage driven by a computer controlled linear motor sets labels in the recesses of a mold as it moves into alignment for receipt of a portion of parison to be blown into the desired product. As disclosed the mold is driven along an upwardly inclined path toward the parison and the linear drive support and carriage are drawn thereby along a parallel path in unison with the mold. After insertion of labels, the beam is withdrawn for receipt of additional labels whereupon the carriage and label loaded beam are advanced to a position just outside the path of mold movement to await return and opening of the mold for another cycle of label insertion. Label holders on both sides of the insert beam swing outwardly for receipt of labels and for deposition of labels in the recessed walls of the mold.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: September 27, 1994
    Assignee: Avery-Dennison Corporation
    Inventors: Joseph C. Yager, John D. Schuster
  • Patent number: 5346665
    Abstract: When a resin article having at least one thickened part is blow-molded, a parison is extruded and suspended between halves of a blow mold the inner surface of which defines the outer shape of the article to be molded. An expander panel is inserted into the space inside the parison, and is moved toward the part of the inner surface of the blow mold corresponding to the thickened part of the article to press thereagainst a part of the parison. Then the blow mold is closed and pressurized gas is blown into the parison.
    Type: Grant
    Filed: December 6, 1991
    Date of Patent: September 13, 1994
    Assignee: Mazda Motor Corporation
    Inventors: Yasuto Watanabe, Masao Hara, Takashi Tomita, Tetsuya Nakata, Kenji Moriwaki
  • Patent number: 5344305
    Abstract: A method and apparatus for in-mold labelling in which labels are individually cut from a continuous web as demanded by the cycling of a mold. The web of labels is advanced through a die cutter which sequentially cuts individual labels from the web. A transfer device picks a freshly cut label from the die cutter and places the label within the cavity of a mold located in proximity to the die cutter. By individually cutting labels from a web at the time of use rather than loading a stack of precut labels in a magazine, the invention allows for the use of thinner, less expensive, and compatible plastic label material.
    Type: Grant
    Filed: February 1, 1993
    Date of Patent: September 6, 1994
    Assignee: CCL Label, Inc.
    Inventor: Barron G. McKillip
  • Patent number: 5338503
    Abstract: A method of making a bottle with a handle, wherein a synthetic-resin parison is disposed in half-cylindrical molds with a handle body, which is blow-molded and at the same time integrated with the handle body, characterized in that the parison is disposed between the opened molds; the handle body is tacked to a face of matching faces of the half-cylindrical molds; the molds are closed; and the blow-molding is performed.
    Type: Grant
    Filed: May 5, 1993
    Date of Patent: August 16, 1994
    Assignee: Mitsubishi Plastics Industries Limited
    Inventors: Tateo Yanagisawa, Hisayoshi Yamada, Katsumi Sakamoto, Seiki Inagawa, Yukihide Umetsu, Takeshi Uchida, Hideyo Nakahara, Yoshiharu Fukumoto
  • Patent number: 5308573
    Abstract: A method of molding a fuel tank wherein two baffle plates mounted on a blow-in are inserted in a molten parison of a thermoplastic resin surrounded by a split metal mold. The split metal mold is closed around the parison and a pressurized fluid is fed through the blow-in into the molten parison to blow-mold the fuel tank. The baffle plates, during the blow-molding, are melt-adhered onto the inner wall of the fuel tank. A blow-molded fuel tank containing two baffle plates adhered to the inner wall of the fuel tank is obtained.
    Type: Grant
    Filed: August 5, 1992
    Date of Patent: May 3, 1994
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventor: Sadamu Hirakawa
  • Patent number: 5256365
    Abstract: A method of labeling mold cavities in a blow-molding machine using an in-mold labeling system including first and second label magazines, first and second rotary members each having a label transfer unit with a suction cup, and using the steps of rotating each member to position the suction cup adjacent a magazine, transferring a label in the magazine to the cup, rotating the member to position the held label adjacent a pickup position, transferring the label to a suction cup of an in-mold labeling unit and actuating the unit to place the labels in mold cavities of a blow molding machine. When the suction cup of the transfer unit is adjacent the magazine, a high vacuum is drawn to remove one label from the magazine and then the vacuum level is reduced to a low vacuum. During transfer of the label from this suction cup to the suction cup of the labeling unit, the low vacuum is maintained on the transfer unit suction cup while a high vacuum connection is formed between the labeling unit cup and the label.
    Type: Grant
    Filed: November 7, 1991
    Date of Patent: October 26, 1993
    Assignee: Graham Engineering Corp.
    Inventors: Jeffrey D. Gordon, Jean F. Rubie
  • Patent number: 5232653
    Abstract: Blow molding and thermoforming processes in which a mold system having low thermal inertia mold-halves provided with heating and cooling systems is utilized for producing plastic articles coated with surface-upgrading films of high melting polymers or polymers exhibiting a high scratch resistance to improve mechanical characteristics of the molded article. The films may be positioned, before the mold is closed, close to the low thermal inertia mold-halves. Rapid heating and rapid cooling of the mold-halves in contact with the surface-upgraded films permit strength adhesion of the upgrading material to the surface of the molded article.
    Type: Grant
    Filed: October 25, 1991
    Date of Patent: August 3, 1993
    Assignee: Centro Sviluppo Settori Impiego S.r.L.
    Inventors: Antonio Addeo, Vincenzo Cocca, Ivano Tommasi
  • Patent number: 5227176
    Abstract: A mold for a shaped laminate having a rigid member which includes a cavity through which plastic layers are drawn in forming the laminate, such cavity comprising a deformable wall portion having a shape-sustaining configuration matching the surface contour of a rigid member of the laminate, such deformable wall portion being reshapable to another shape-sustaining configuration matching the surface contour of an alternative shape of rigid member of a different shaped laminate.
    Type: Grant
    Filed: December 6, 1991
    Date of Patent: July 13, 1993
    Assignee: Monsanto Company
    Inventor: Susan E. McIntyre-Major
  • Patent number: 5223073
    Abstract: The apparatus includes advancement clamps which move two mutually facing films along an advancement direction on which the following are arranged in sequence: two welding half-molds, which by mutually welding the two films in preset regions define cells which are open toward a longitudinal edge of the films; two half-molds for heating the welded films; a cell forming station. Air injection nozzles, inserted between the two flaps of the films on the side of the above mentioned longitudinal edge, and two forming half-molds, in which forming cavities are defined at the cells, operate in the forming station. Divaricators for divaricating the two flaps of the films are provided proximate to the forming station so as to facilitate the insertion of the air injection nozzles.
    Type: Grant
    Filed: September 23, 1991
    Date of Patent: June 29, 1993
    Assignee: Sarong S.p.A.
    Inventors: Antonio Freddi, Primo Finetti
  • Patent number: 5207969
    Abstract: A process for producing a blow molded article, in which a parison is disposed between an outer face-forming mold section having an air bleeding hole and a bottom face-forming mold section and adjacent said bottom face-forming mold section. A resin film is disposed between the parison and the outer face-forming mold section. Then the outer face-forming mold section and bottom face-forming mold section are closed. Then air is blown into the parison to inflate the parison to form the end product and simultaneously to mold the resin film and the end product in an integral relationship with each other.
    Type: Grant
    Filed: August 20, 1991
    Date of Patent: May 4, 1993
    Assignee: Tokai Kogyo Co., Ltd.
    Inventor: Itaru Shirahata
  • Patent number: 5198247
    Abstract: This relates to a labeller for applying simultaneously two labels to a dual cavity mold half. The labeller is especially constructed to receive a pair of labels from a pair of adjacent label magazines and then move one of the labels towards the other so as to reduce the overall width of the pair of labels. This permits the pair of labels to be moved between a pair of mold halves within the limited space available and thereafter be rotated for alignment with the dual cavities of the mold half for positioning within the dual cavities. Basically speaking, the labeller includes a support member having mounted thereon a pair of carriers for separate movement towards and away from one another. The carriers are moved such that one normally remains fixed after a label is picked up by pickup heads carried thereby while the other carrier is moved towards the first carrier so as to move the labels together.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: March 30, 1993
    Assignee: Continental Plastic Containers, Inc.
    Inventors: George F. Bartimes, Leonard A. Blomquist
  • Patent number: 5194212
    Abstract: A fiber reinforced structure having a hollow blow-molded core and a method for manufacturing the same. Bulk fibrous material is dispensed between two die pieces of a mold. A blow-moldable plastic parison is extruded within the fibrous material. The mold is closed, pinching the parison closed and detaching the bulk fibrous material from the structure. The parison is inflated thus forcing the fibrous material against the interior mold walls. Liquid resin is injected into mold and impregnates the fibrous material. After curing, the finished reinforced structure is removed from the mold.
    Type: Grant
    Filed: December 18, 1990
    Date of Patent: March 16, 1993
    Assignee: Ford Motor Company
    Inventor: Roy E. Bonnett
  • Patent number: 5193711
    Abstract: A label comprising a bottom wall section and side wall sections has cuts formed into respective said side wall sections which extend along extensions of opposite side edges of said bottom wall section. There are provided folding lines extending between forward ends of the respectively paired cuts transversely thereof and/or cutouts intermittently arranged on imaginary lines corresponding to respective said folding lines so that said side wall sections may be folded upwardly with respect to said bottom wall section to define a lower end of the label located below the inner bottom surface of the container in the proximities of respective curved corners. A mold consisting of a core and a cavity is loaded with the label and then the in-mold labeling operation is carried out with injected resin.A surface of the mold core may be provided with injected resin guide grooves or the like to form thickened areas extending along the label folds or along the inner surface of the container's bottom.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: March 16, 1993
    Assignees: Snow Brand Milk Products Co., Ltd., Nippla Co., Ltd.
    Inventors: Masanori Hirata, Kohji Maekawa, Ken Katayama, Koubu Mizukoshi
  • Patent number: 5169470
    Abstract: The vessel portion of a gas-tight container suitable for packaging fresh foods is produced as a composite of paperboard and polymer film. A pair of folded paperboard blanks, pre-cut and pre-formed, are inserted into the opposite halves of split mold elements to a blow molding machine. Vacuum orifices in each mold half unit temporarily secure the position of a respective paperboard blank. The paperboard lined mold halves are closed upon a hot, extruded parison of malleable polymer leaving an end portion of the parison tube projecting from the closed mold unit. A fluid conducting needle penetrates this projected end portion to inflate the parison with an apppropriate blowing gas. Such inflation expands the malleable polymer, seamlessly and creaselessly, into the internal corners and crevices of the folded paperboard blanks. Following chilling, the mold unit is opened and the pair of paperboard blanks are ejected as a singular unit, joined by a molded flange of the continuous polymer film.
    Type: Grant
    Filed: July 30, 1991
    Date of Patent: December 8, 1992
    Assignee: Westvaco Corporation
    Inventor: Barry A. Goldberg
  • Patent number: 5169653
    Abstract: A label transfer assembly providing for in-mold labeling of blow molded articles in blow molding machinery. A label carrier is utilized which includes means for individually receiving labels from a label storage magazine. Once loaded with labels, the label carrier is moved to a position adjacent a placement assembly. The labels are removed from the carrier by the placement assembly which includes arms that transfer the labels to positions in mold cavities in the machinery. During molding, the labels will become fused to the surfaces of the blow molded articles.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: December 8, 1992
    Assignee: Hoover Universal, Inc.
    Inventors: Dennis J. Tate, John R. Francis
  • Patent number: 5154936
    Abstract: In a tube eversion apparatus a first chamber in which the eversion pressure is developed is controllably sealed by a sphincter-type valve, the valve being in turn actuated by pressure developed in a preferably separately controllable and adjustable second chamber, another chamber preferably being provided above the sphincter-type valve for containing a supply of liquid and limiting turbulence from any escape of fluid past the sphincter-type valve, the other chamber also providing apparatus for supplying heated fluid to a lay-flat hose adapted to be pulled through the spincter-type valve by the tube being everted. Use of the improved apparatus involves appropriate modifications of the usual eversion process involving applying and controlling the everting pressure and the pressure exerted against the sphincter-type valve by the fluid in the second chamber.
    Type: Grant
    Filed: October 5, 1990
    Date of Patent: October 13, 1992
    Assignee: Insituform Licensees B.V.
    Inventors: F. Thomas Driver, Joseph A. Alexander, Lloyd G. Buchanan
  • Patent number: 5135702
    Abstract: A method for making a multiple compartment container by providing a mold for defining an outside contour surface of the container; providing a partition member; locating the partition member within the mold; the mold making localized contact only with the partition member for uniformly spacing an edge profile of the partition member from the outside contour surface between adjacent compartment regions of the mold; feeding a plastic material simultaneously into each of the compartment regions of the mold; and forming the plastic material against the outside contour surface of the mold and against opposite sides of the partition member, the plastic material totally enclosing the partition except to the extent of the localized contact with the mold, the partition member being retained between adjacent compartments of the solidified container following removal from the mold.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: August 4, 1992
    Inventor: George E. Eales
  • Patent number: 5114522
    Abstract: A method for producing a high shock-absorbing automobile bumper with a smooth outer surface. The method includes the steps of loading a preformed surface skin member into a blow mold, and then blowing a parison in the mold so that the blown parison is bonded to the surface skin member. The result is a hollow cushioning body firmly bonded to the surface skin member.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: May 19, 1992
    Inventors: Yutaka Takado, Masayuki Yamazaki, Takashi Mikami, Tetsuo Tomiyama