With Plural Molds On Belt Or Turntable Patents (Class 264/297.3)
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Patent number: 11865751Abstract: An injection mold for producing a double walled drinking vessel includes first and second mold portions. The first mold portion forms a first and second cavities corresponding to the outer shape of the outer container and the outer shape of the inner container, respectively. The first and second cavities are located concentrically with respect to a central axis. An index plate is rotatable and axially movable along the central axis relative to the first mold portion. The index plate includes a first core and a second core. The first cavity has a first cavity injection gate for injecting mold material into the first cavity for forming the outer container. The second cavity has a second cavity injection gate for injecting mold material into the second cavity for forming the inner container. The first cavity has a further injection gate for injecting joint material for joining the outer and inner containers.Type: GrantFiled: January 30, 2023Date of Patent: January 9, 2024Assignee: PI-DESIGN AGInventor: Jørgen Bodum
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Patent number: 10906214Abstract: A molding apparatus defining a processing direction includes multiple molding modules spaced apart in a lateral direction perpendicular to the processing direction and a common reaction surface. Each molding module includes a frame and a mold roll that defines molding cavities. Each mold roll defines a respective pressure zone in cooperation with the reaction surface and each mold roll is movable with respect to the reaction surface by controlled operation of the frame. Molten resin is introduced into the pressure zones and forced into the molding cavities to form arrays of fastener elements extending from base layers of resin formed on the surfaces of the mold rolls. The fastener elements are withdrawn from the cavities while stripping the base layers from the peripheral surfaces.Type: GrantFiled: December 10, 2019Date of Patent: February 2, 2021Assignee: Velcro BVBAInventors: Jerry G. Hodsdon, Christopher M. Gallant
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Patent number: 10786934Abstract: A method includes a first molding process and a second molding process performed repeatedly. The first molding process includes injecting resin into a first pair of molds, in which a first pair of divided pieces is formed and which is fitted together without an inner mold, to couple the first pair of divided pieces to form a first hollow article at an injection station. The second molding process includes (i) injecting resin into a third pair of molds, which is fitted together with one inner mold interposed therebetween, to mold a third pair of divided pieces at the injection station, (ii) taking out the first hollow article from the first pair of molds at a removing station, and (iii) removing another inner mold from a second pair of molds while leaving a second pair of divided pieces between the second pair of molds at the setup station.Type: GrantFiled: September 13, 2016Date of Patent: September 29, 2020Assignee: DENSO CORPORATIONInventors: Sayaka Okabe, Tsuyoshi Arai, Manabu Ishiguro
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Publication number: 20150076735Abstract: An injection molding machine includes first and second molds each having a first mold portion and a second mold portion used to form a molded part. The injection molding machine includes a platen holding the first mold at an injection station where an injection unit injects injection material into the first mold prior to transferring the first mold away from the platen to one or more secondary stations. The second mold is positioned remote from the platen at the one or more secondary stations where the second mold is cooled, the first and second mold portions of the second mold are opened, the molded part is ejected, and the first and second mold portions of the second mold are closed prior to transferring the second mold to the platen. The opening and closing of the first and second mold portions occurs remote from the platen.Type: ApplicationFiled: September 16, 2013Publication date: March 19, 2015Applicant: Tyco Electronics CorporationInventor: William James Moyer, II
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Patent number: 8871123Abstract: The present invention relates to an absorbent article including a absorbent core having a plurality of first regions and a second region, each one of said first regions being arranged in spaced relationship from each of the other first regions and each of the first regions being entirely surrounded by the second region. The present invention also relates to a method of making such a core structure.Type: GrantFiled: August 5, 2008Date of Patent: October 28, 2014Assignee: Johnson & Johnson Ind. E Com. Ltda.Inventors: Antonio Carlos Ribeiro de Carvalho, Ivair Luiz Duarte, Márcia Helena Teixeira Fajolli, Francisco Antonio Rimoli, Maria Márcia R. Caldas Salles
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Patent number: 8758666Abstract: An apparatus for receiving a plurality of mold assemblies having a first mold portion and a second mold portion operably connected together for forming parts. The apparatus includes a mold holding member and a pair of spaced apart support members extending from the mold holding member to a manufacturing floor. A carriage device is cooperable with the mold holding member for engaging and moving the mold assembly. A lifting mechanism is used for moving the carriage device relative the mold holding member to move the mold assembly to be engaged with mold holding member. A turn table adjacent to the mold holding member holds the mold assemblies and is movable relative the mold holding member thereby replacing the mold assemblies. A controller is operably connected to the mold holding member and the turn table thereby moving the turn table relative the mold holding member to interchange the mold assemblies.Type: GrantFiled: November 30, 2011Date of Patent: June 24, 2014Assignee: Aktiebolaget SKFInventor: Yefim Epshetsky
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Publication number: 20140167318Abstract: The invention relates to an apparatus for producing plastics material pre-forms from a thermoplastic plastics material (12) with a device (1) for providing flowable thermoplastic plastics material (12), a hot runner tool (2) arranged downstream of the device (1) and a conveying device (4) having a plurality of cavities (3), wherein the hot runner tool (2) has at least one hot runner (5), which is formed in a face (6) of the hot runner tool (2), and the conveying device (4) has a face (7) in which openings (8) for filling the cavities (3) are formed, wherein the faces (6, 7) of the hot runner tool (2) and of the conveying device (4) are capable of being orientated with respect to each other in such a way that they slide one over the other, wherein at least one opening (8) of a cavity (3) is always positioned above the hot runner (5).Type: ApplicationFiled: December 8, 2013Publication date: June 19, 2014Inventors: Jochen Forsthövel, Konrad Senn
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Patent number: 8673190Abstract: Systems, methods and apparatuses for manufacturing dosage forms, and to dosage forms made using such systems, methods and apparatuses are provided. Novel compression, thermal cycle molding, and thermal setting molding modules are disclosed. One or more of such modules may be linked, preferably via novel transfer device, into an overall system for making dosage forms.Type: GrantFiled: December 7, 2011Date of Patent: March 18, 2014Assignee: McNeil-PPC, Inc.Inventors: Harry S. Sowden, Bernard F. Plantz, Shun Por Li
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Patent number: 8616876Abstract: The invention concerns a kit for a machine for the injection moulding of moulded parts, the moulding machine comprising a first platen and a second platen, the kit comprising: a first support plate intended to be fixed to the said first platen; a second support plate intended to be fixed to the said second platen, the two platens being designed to be able to move with respect to each other by sliding so as to adopt successively an open position and a closed position; for the first support plate, at least one barrel of a first type, mounted so as to able to move in rotation on the said first support plate about an axis perpendicular to the plane of the said first support plate, and carrying at least two cavities; for the second support plate, at least one barrel of a second type, mounted so as to be able to move in rotation on said second support plate about an axis perpendicular to the plane of the said second support plate, and carrying at least two cavities.Type: GrantFiled: May 11, 2010Date of Patent: December 31, 2013Assignee: MoulindustrieInventor: Jacky Moulin
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Patent number: 8574481Abstract: Shingle material, preferably comprising a core with a capstock applied thereto is extruded, preferably by means of a co-extrusion process, onto a series of individual carrier plates, with the shingle material then being severed such that each carrier plate carries its own layer of shingle material thereon and the carrier plates are then delivered to a compression mold, in which the shingle is molded. The carrier plate and shingle is then removed from the mold and carried through a series of hold-down stations, after which the shingle is delivered to a trimmer, where flashing is simultaneously trimmed from its edges. The shingle is then cooled, preferably by sandwiching it between upper and lower retention members, which are cooled via a cooling tower. The retention members impart a curvature to the shingle. The carrier plates are returned via a return conveyor, to be heated, for re-use.Type: GrantFiled: November 29, 2007Date of Patent: November 5, 2013Assignee: CertainTeed CorporationInventors: Thomas Kevin MacKinnon, Douglas Harold Wylie, David George Nelson, William Arno Koegler
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Publication number: 20130134628Abstract: An apparatus for receiving a plurality of mold assemblies having a first mold portion and a second mold portion operably connected together for forming parts. The apparatus includes a mold holding member and a pair of spaced apart support members extending from the mold holding member to a manufacturing floor. A carriage device is cooperable with the mold holding member for engaging and moving the mold assembly. A lifting mechanism is used for moving the carriage device relative the mold holding member to move the mold assembly to be engaged with mold holding member. A turn table adjacent to the mold holding member holds the mold assemblies and is movable relative the mold holding member thereby replacing the mold assemblies. A controller is operably connected to the mold holding member and the turn table thereby moving the turn table relative the mold holding member to interchange the mold assemblies.Type: ApplicationFiled: November 30, 2011Publication date: May 30, 2013Inventor: Yefim Epshetsky
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Patent number: 8414813Abstract: In a method of making multi-component plastic molded parts, using an apparatus which includes two outer platens with first half-molds, and a middle platen with second half-molds interacting with the first half-molds such as to define cavities in two parting planes for injection of a plastic melt and/or a PUR mixture, one of the first and second half-molds can move in increments relative to the other one of the first and second half-molds, thereby forming different cavities in the parting planes from cycle to cycle. In a first cycle preforms are produced in respective cavities and then held in one of the first and second half-molds as the other one of the first and second half-molds moves in increments. Further components can then be injected into cavities formed in the parting planes from cycle to cycle, while another process step can be executed from cycle to cycle in free half-molds.Type: GrantFiled: December 15, 2011Date of Patent: April 9, 2013Assignee: KraussMaffei Technologies GmbHInventors: Ludwig Jung, Marco Gruber, Andreas Reitberger
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Patent number: 8414812Abstract: The invention relates to a method for the injection molding of a body having at least one wall portion covered on the outside by a label, that comprises: a) using a molding assembly (50) including two mobile parts, one of which at least includes a cavity for making said wall portion; b) using a pick-up means (10), a transfer means (20) and a deposition means (29) for the labels; c) actuating said transfer means so that the label is brought to the cavity and depositing said label in said cavity; d) removing said transfer means, and closing the molding assembly in order to proceed with molding; characterized in that it comprises using a machine including: A) a rotary platen (60) for supplying a plurality of work stations, and on which the molding assembly is mounted; B) an injection press provided at a work station, the molding assembly arriving in a closed and locked configuration at the station and being pressed against said injection press in order to fill the chamber; C) said transfer means (20) at an upstrType: GrantFiled: October 22, 2008Date of Patent: April 9, 2013Assignee: Albea ServicesInventor: Dominique Chaslin
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Patent number: 7993564Abstract: A PET granule hopper and dryer (1) feeding an extruder (2). The extruder in turn via a rotary seal, feeds a metering wheel (3) on which there are metering devices. An injection-compression wheel (4) supporting injection-compression devices (5) is positioned after the metering wheel (3). If the installation is not designed for continuous feeding of a blower for converting the preformed into packagings, a perform cooler is provided, by means of a cooling wheel (6) equipped with a set of water-cooled devices (1) blowing air onto the performs before they are taken away for storage.Type: GrantFiled: April 3, 2007Date of Patent: August 9, 2011Assignee: Olilab Ltd.Inventor: Alain Dupuis
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Patent number: 7981344Abstract: A method and a molding plant for manufacturing a storage container for storage of nuclear radiation material, the container having an inner container part of a first thermoplastic material, an intermediate container part of radiation inhibiting material on the outside of the inner container part, and an outer container part of a second thermoplastic material molded onto the outside of intermediate container part. First, second, third and fourth locations are present along a circular path.Type: GrantFiled: April 23, 2009Date of Patent: July 19, 2011Assignee: Nuclear Protection Products ASInventor: Frank Stengrimsen
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Patent number: 7976757Abstract: An in mold decoration process includes inserting a film with decorations into a first mold tool cavity side. The first mold tool cavity side is then engaged with a first mold tool core side, and the film in the first mold tool cavity side undergoes a high-pressure heat forming procedure. After the forming procedure, the film is formed with a cavity and maintained in the first mold tool cavity side. The first mold tool cavity side is then disengaged from the first mold tool core side and engaged with a second mold tool core side, and the film undergoes an injection molding procedure. The cavity is injected with a molten resin. After the molding procedure, the molten resin becomes a plastic component bound to the film to form a semi-finished product. The semi-finished product is then ejected out of the first mold tool cavity side and trimmed to form a finished product.Type: GrantFiled: August 27, 2009Date of Patent: July 12, 2011Assignee: Ju Teng International Holdings LimitedInventor: Jung-Feng Yang
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Patent number: 7947210Abstract: The present invention provides a tampon pledget having a shaped tip. The present invention further provides a method for forming a tampon pledget having a shaped tip. The method includes a cooling step after the formation of the shaped tip, which results in the minimization and/or prevention of deformation of the shaped pledget tip during the remainder of processing up until the end use by a consumer.Type: GrantFiled: June 9, 2009Date of Patent: May 24, 2011Assignee: Playtex Products, Inc.Inventors: Van T Pham, Joseph S. Konrad, Frederick N. Schaber
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Patent number: 7879281Abstract: A plastic preforms (5) molding device and process comprising an injection mold, containing a plurality of injection cavities, an arm (3) for extracting the preforms (5) from the mold, equipped with guillotine-like gripping elements, which moves between the existing space between the half molds when in the open position in order to grasp the preforms and the external position, a cooling turret (6), with the faces housing a group of cups (7) for the conditioning of the preforms (5), which effects a rotational movement around a horizontal axis and a vertical translation movement between the high position under the extraction arm to receive the preforms and the low position corresponding to the extraction table of the preforms (5), on which are indented longitudinal slots with teeth shaped constrictions in order to grasp the preforms under the ring (9) and to extract them from the cups (7).Type: GrantFiled: October 5, 2004Date of Patent: February 1, 2011Assignee: S.I.P.A. Societa' Industrializzazione Progettazione E Automazione S.p.A.Inventors: Matteo Zoppas, Massimo Coran, Jader Pavanetto
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Patent number: 7841852Abstract: A demolding apparatus for removing molded building products from a mold has a conveyor assembly to advance the mold in a machine direction. A removal mechanism contacts a dislodged portion of the molded building product and applies a dislodging force to the dislodged portion of the molded building product.Type: GrantFiled: December 30, 2005Date of Patent: November 30, 2010Assignee: Owens-Corning Fiberglas Technology, Inc.Inventors: Jonathan M. Verhoff, Richard Smith, James S. Belt, David P. Aschenbeck, Thomas P. Copeland
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Patent number: 7807226Abstract: Light transmission devices, such as lenses and windows for portable electronic devices, are produced using an injection/compression molding technique in which a light transmission device mold includes an integral runner in substantially the same plane and with substantially the same wall thickness as the light transmission device to be produced. The finished light transmission devices are mechanically separated from the molded product. Molding equipment and processes traditionally used to produce information discs can be leveraged to produce light transmission devices. Various processes can be performed to add metallization, coatings, and printing to the light transmission devices.Type: GrantFiled: October 28, 2005Date of Patent: October 5, 2010Assignee: Nypro Inc.Inventors: Paul C. Jensen, Anthony L. Gelardi, James P. Elliott
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Patent number: 7700029Abstract: The device for conditioning preforms in plastic material comprises a rotating turret (20), having a group of conditioning cavities (22) for inserting preforms, partly through an opening on a first side (A) of the turret and partly through an opening on a second side (B) of the turret. The conditioning cavities (22) which open on the first side (A) are disposed in such a way that for part of their length (L1) they are situated side by side with the cavities which open on the second side (B). In this way the turret becomes more compact. There is also described a conditioning method for the preforms.Type: GrantFiled: March 1, 2005Date of Patent: April 20, 2010Assignee: S.I.P.A. Societa Industrializzazione Progettazione E automazione S.p.A.Inventors: Matteo Zoppas, Massimo Coran
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Patent number: 7651645Abstract: A continuous forming apparatus for molding foam material into foam products that includes a first endless belt and a second endless belt that cooperates with the first endless belt to mold the foam material. The continuous forming apparatus may also include a first plurality of cleats and a second plurality of cleats opposed to the first plurality of cleats that support the first endless belt and the second endless belt respectively. The first plurality of cleats may include a three-dimensional abutment surface that provides transverse and lateral support to the first endless belt. Additionally, the continuous forming apparatus may include a first frame disposed to support the first plurality of cleats, a second frame disposed to support the second plurality of cleats, and a drive mechanism for imparting motion to the first endless belt, the second endless belt, the first plurality of cleats, and the second plurality of cleats.Type: GrantFiled: November 6, 2006Date of Patent: January 26, 2010Assignee: Century Products, LLCInventor: Zachary R. Taylor
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Patent number: 7608212Abstract: Procedure and molding tool for the molding of both one- or multi-component parts preferably of plastics, possibly with an integrated insertion of parts of another material as steel and copper, where the turnable middle section during the molding is supplied with material on at least one of the surfaces/areas, that in contrary to the normal procedures are not at a right angle to the closing direction between the stationary mold part and the movable mold part of the tool. This can e.g. be realized by molding a part or a piece of a part and/or by molding around a special part for the in-molding on at least one of these surfaces/areas of the turnable middle section. This molding and/or insertion can take place while the tool is closed and on several surfaces at the same time, which saves cycle time.Type: GrantFiled: December 19, 2006Date of Patent: October 27, 2009Inventor: Jes Tougaard Gram
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Patent number: 7597834Abstract: Disclosed, amongst other things, is: (i) a rotary injection molding machine; (ii) a mold; (iii) a mass-drive; and (iv) a method of a molding, amongst other things.Type: GrantFiled: April 10, 2007Date of Patent: October 6, 2009Assignee: Husky Injection Molding Systems Ltd.Inventor: John DeSimone
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Publication number: 20090108497Abstract: A multi-cavity moulding process, using a moulding tool including an injection head integral with the injection press and a moulding assembly, the plastic material being injected under pressure and distributed in runners provided in the injection head which is equipped with heating elements, the moulding assembly including two mobile parts the assembly of which allows the mould cavities to be formed and the spreading of which allows the moulded parts to be ejected. The moulding assembly also includes a manoeuvring device that opens, closes and locks the mobile parts, where none of the mobile parts (30 and 40) of the moulding assembly is secured to the injection head, the moulding assembly coming into contact with the injection head and bearing on it only when it is closed in position and locked in order to fill the mould cavities.Type: ApplicationFiled: October 23, 2008Publication date: April 30, 2009Applicant: ALCAN PACKAGING BEAUTY SERVICESInventor: Dominique CHASLIN
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Patent number: 7181311Abstract: A plastics processing machine, in particular injection molding machine or extruder, includes at least one component represented by a clamping unit, feed and metering apparatus, plasticizing unit, injection unit, or separate injection apparatus, and characterized by specific parameters for carrying out at least one working or process step. A control device is connected to the at least one component and configured to control the at least one component, with the component-specific parameters being useable in the control device for control of the component. Provided for the component is a separate memory device in which the component-specific parameters are stored and can be transmitted to the control device prior to or upon startup of operation of the component.Type: GrantFiled: August 29, 2005Date of Patent: February 20, 2007Assignee: Demag Ergotech GmbHInventors: Oswald Dachs, Karl Rudolf Lüttich, Gerd Warnecke, Andreas Melkus
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Patent number: 7140858Abstract: It is provided an apparatus for injection molding articles of plastics material comprising: molds (2a) and countermolds (2b) forming molding units (3), molding cavities (7) being defined inside said molds and countermolds; one injection assembly (8) and one auxiliary assembly (9) adapted to respectively supply melted plastics material and pressurized fluid into the molding cavities; molding units (3) being movable with respect to said injection assembly (8) and auxiliary assembly (9); and removable connecting devices (12, 8a), and check means (20) adapted to avoid counter flows from molding cavities (7), being provided between molding units (3) and injection assembly (8) and auxiliary assembly (9).Type: GrantFiled: July 31, 2003Date of Patent: November 28, 2006Assignee: John Palmer Corp.Inventor: Mario Bruschi
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Patent number: 7072735Abstract: Method and apparatus for controlling an injection molding machine having a first surface and a second surface includes a piezo-ceramic sensor configured to be disposed between the first surface and a second surface. The piezo-ceramic sensor is configured to sense a force between the first surface and the second surface, and to generate corresponding sense signals. Transmission structure is coupled to the piezo-ceramic sensor and is configured to carry the sense signals. Preferably, a piezo-ceramic actuator is also disposed between the first surface and a second surface, and is configured to provide an expansive force between the first surface and a second surface in accordance with the sense signals.Type: GrantFiled: April 23, 2004Date of Patent: July 4, 2006Assignee: Husky Injection Molding Systems Ltd.Inventor: Derek K. W. Smith
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Patent number: 7020540Abstract: A method and apparatus are disclosed for controlling temperature of a plant comprising plural temperature control zones, wherein an effective control parameter for a first zone for which a signal representing measured temperature is available is produced according to an algorithm relating measured temperature, a desired temperature and a control parameter associated with a device affecting temperature in the first temperature control zone, the effective control parameter is summed with an offset value representing a proportional offset of the effective control parameter of a second temperature control zone relative to the effective control parameter of the first temperature control zone and the result is applied to control a device affecting temperature in the second temperature control zone.Type: GrantFiled: May 14, 2004Date of Patent: March 28, 2006Assignee: D-M-E CompanyInventors: Thomas Linehan, Fred Schroeder
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Patent number: 6925354Abstract: Process for the control of an injection-moulding machine and optionally at least one handling apparatus allocated to same in which, in a form guiding the operator, the operating parameters required for an injection cycle to run are entered via an input unit into a data processing unit storing these operating parameters and then one or more injection cycles are carried out according to the stored operating parameters, safety conditions for the protection of machine parts by means of which certain movement sequences of the injection-molding machine or the handling device are forbidden or allowed, being specified prior to the start of injection, there being provided on a screen an input mask on which one of several, preferably graphically displayed, basic movement modules is selected in each case and on which then, for every selected basic movement module, a safety condition in the form of logical, preferably Boolean operations is adjusted or adopted from the state of one or more different basic movement modulesType: GrantFiled: October 10, 2002Date of Patent: August 2, 2005Assignee: Engel Maschinenbau Gesellschaft m.b.H.Inventors: Rupert Mörwald, Engelbert Kastner, Walter Eglseer
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Patent number: 6872341Abstract: A system and method of mass-producing a bait station of wax matrix material for pesticide or insecticide delivery is disclosed. The apparatus and method includes a water-heated vat 110 which supplies liquid wax matrix material to molds which may be of various forms in accordance with the desired bait station to be manufactured. A fluid pump 120 pumps the wax matrix material from the vat through a tube 130 into molding tubes 140. At a molding tube station 140 the molds are filled and then carried by a conveyer belt 100 to a cooling tunnel 160. The wax-containing molds may be shaken by an in-line shaker in order to reduce air bubbles in the wax matrix. After the wax-containing molds are cooled by the cooling tunnel 160 the conveyer carries them to a labeling station 170, after which the finished bait stations are removed from their molds and packaged.Type: GrantFiled: September 20, 2002Date of Patent: March 29, 2005Inventor: Richard David Robinson
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Patent number: 6863853Abstract: An assembly for manufacturing carriers of information or decoration, characterised by a mould unit comprising two mould means which are joinable with each other. The mould unit comprises an injection moulding station for injection moulding of said carriers, and a printing station with a stamping unit for applying to said carrier a covering formed in accordance with the current information or decoration. The present invention also concerns a corresponding method.Type: GrantFiled: April 5, 2001Date of Patent: March 8, 2005Assignee: Nolato ABInventors: Hans Brewitz, Lars Persson, Thomas Svensson
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Patent number: 6803010Abstract: A method of making a segmented hook and loop type fastener which accommodates molding contours. Several different methods for fabricating such a fastener are disclosed. A plurality of mold plates include a fastener forming zone, having similar arcuate edges. The fastener forming zone further comprises fastening element mold cavities intersecting these edges and one face of the mold plate, the mold cavities being arranged into a plurality of segment forming regions. Circumscribing each of the segment forming regions, is a gasket mold cavity; and between each adjacent pair of segment forming regions, is a hinge forming region. The mold plates form a cylindrical mold wheel having a circular surface formed by the arcuate edges of the mold plates such that the segment forming regions are spaced apart circumferentially around the cylindrical surface. The apparatus further comprises an extruder having a die whose surface is disposed close to the cylindrical surface.Type: GrantFiled: December 1, 2003Date of Patent: October 12, 2004Assignee: Velcro Industries B.V.Inventors: Peter E. Leach, Christopher M. Gallant
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Patent number: 6558599Abstract: A method of making a painted part out of molded thermoplastic material, the method including making the part to be painted by a method of molding thermoplastic material in the cavity of a mold; allowing the part made in this way to cool at least on the surface, cooling being accompanied by shrinkage, and being performed by opening the mold that was used to make the part that is to be painted; and injecting paint around the part in a cavity of a mold having the same shape as the mold cavity that was used for molding the thermoplastic material.Type: GrantFiled: April 26, 1999Date of Patent: May 6, 2003Assignee: L'OrealInventor: Alain Bethune
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Patent number: 6348169Abstract: A method of making a water shield for a motor vehicle. The method comprises providing a mold having a cavity with the general shape of the water shield and also having a movable core. A first plastic is injected into the cavity to form a substrate of the water shield. The core is withdrawn, and a second plastic is injected into the mold in proximate the first plastic to form a gasket of the water shield. The plastics are cooled to form the substrate having a first durometer and to form the gasket having a second durometer softer than the first durometer.Type: GrantFiled: April 28, 1999Date of Patent: February 19, 2002Assignee: Cadillac Products, Inc.Inventors: Brian Matthew Stipes, Douglas Howard Turner
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Method for manufacturing synthetic resin hollow member incorporating an intermediate element therein
Patent number: 6299816Abstract: Method and apparatus for manufacturing a synthetic resin-made hollow member incorporating an intermediate element are provided which enable operations of molding half bodies, abutting and joining the half bodies together, and molding an intermediate element in a series of steps, and which eliminate the necessity of such a manual work as may otherwise be required in incorporating the intermediate element into the half bodies. A pair of rotary injection molding dies are used which can be opened and closed relative to each other and are rotatable relative to each other over an angle of 60° for each turn, each die having a half body molding section including one male molding portion and two female molding portions in the direction of rotation for each rotational run over an angle of 120°, each die also having an intermediate element molding portion provided between specified half body molding portions in the direction of each rotational run over an angle of 120°.Type: GrantFiled: November 10, 1998Date of Patent: October 9, 2001Assignees: G P Daikyo Corporation, Japan Steel Works, Ltd.Inventors: Yoshihiro Takemoto, Shoso Nishida -
Patent number: 6221189Abstract: A method for manufacturing thermoplastic tubes from hollow thermoplastic sleeves by a variety of different manufacturing processes. The machine used in the method is a single apparatus having an indexing device with a plurality of mandrels for holding hollow thermoplastic sleeves for the purpose of transporting the same around a closed manufacturing path. The method involves advancing sleeves around the closed manufacturing path to form tubes from the sleeves.Type: GrantFiled: November 25, 1998Date of Patent: April 24, 2001Assignee: Thatcher Tubes LLCInventors: Ronald E. Kieras, John J. Rhoades
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Patent number: 6192568Abstract: A method is provided for making a combination hub and catheter. A material is molded in a mold into a body having at least a first hub, and at least a first nose extending from the first hub. The first nose is then elongated into a catheter by moving first and second components of the mold away from one another.Type: GrantFiled: March 11, 1999Date of Patent: February 27, 2001Assignee: Ethicon, Inc.Inventors: Adel Kafrawy, Fidelis C. Onwumere