Including Means To Close Or Lock Blow Mold Patents (Class 425/541)
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Publication number: 20090136613Abstract: The device according to the invention serves to retain a blow mould segment in the region of a blow moulding station which is provided with a support element for the blow mould segment. The blow mould segment can be detachably fixed in the region of the support element by at least one locking element. The locking element is designed so as to provide both positively locking retention and non-positively locking retention of the blow mould segment.Type: ApplicationFiled: July 17, 2006Publication date: May 28, 2009Inventors: Michael Linke, Michael Litzenberg, Rolf Baumgarte, Frank Lewin
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Publication number: 20090047374Abstract: Disclosed herein is a mold module from a set of substantially structurally independent mold modules of at least one of a first mold assembly or a second mold assembly. The first mold assembly and the second mold assembly for accepting, in use, a plurality of first mold inserts and second mold inserts, respectively, to define, in use, a plurality of substantially identical molding cavities therebetween. A subset of at least one of the first mold inserts or the second mold inserts being accepted in the mold module.Type: ApplicationFiled: August 16, 2007Publication date: February 19, 2009Inventors: John Robert GALT, Thomas Michael McGinley, Sheldon John Alexander, Christopher J. Brusa, Stephen Daniel Ferenc
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Publication number: 20090047375Abstract: The invention concerns a mold tool for the production of extrusion blow molded products, comprising at least three mold portions (2a, 2b, 3) which define a mold cavity (4) and of which two are in the form of outer molds (2a, 2b) and one is in the form of a central mold (3). The outer molds (2a, 2b) and the central mold (3) are displaceable from and towards each other in the sense of an opening and closing movement of the tool. The central mold (3) is provided with component holders (11) which can be moved out of and into the tool plane defined by the central mold and are arranged in turn on a carrier (10) which is also displaceable with respect to the central mold (3).Type: ApplicationFiled: June 8, 2007Publication date: February 19, 2009Applicant: KAUTEX TEXTRON GMBH & CO. KGInventors: Matthias Borchert, Timo Kramer, Dirk Eulitz, Gerd Wolter, Harald Lorenz, Deniz Bienhuls, Christoph Mehren, Robert Lower
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Publication number: 20090047373Abstract: Disclosed herein is a stationary platen of a mold clamp for use with a molding system. The stationary platen includes a platen base configured to accept a first mold assembly of a mold, the platen base also defines a receptacle for embedding, in use, a bridge runner system. The bridge runner system is configured to fluidly connect, at least in part, a source of molding material with a molding cavity defined, at least in part, by a mold insert accepted in the first mold assembly.Type: ApplicationFiled: August 16, 2007Publication date: February 19, 2009Inventors: John Robert Galt, Thomas Michael McGinley, Sheldon John Alexander, Christopher J. Brusa, Stephen Daniel Ferenc
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Publication number: 20090011069Abstract: A control device using a follower member and a cam path to control an element of a container processor machine, the device comprising two cam paths defined by a single rigid assembly (5), means enabling relative movement between the follower member and the rigid assembly (5), between at least two positions, the follower member engaging a first cam path in a first position and engaging a second cam path in a second position. A blow-molding or stretch blow-molding machine including such a device, in particular for controlling the movement of the lengthening rod, or for controlling mold locking/unlocking, or for controlling mold opening/closing.Type: ApplicationFiled: December 15, 2006Publication date: January 8, 2009Applicant: SIDEL PARTICIPATIONSInventors: Philippe Derouault, Laurent Danel
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Publication number: 20080311239Abstract: An apparatus for blow molding wherein at least one panel insert comprises the molding surfaces of at least one mold component, the depth of at least one panel insert within a recess of the mold component is adjustable in predetermined increments while the panel insert is retained in the recess of the mold component. In one embodiment, relative depth of the panel insert is determined by abutment of stepped seating surfaces comprising at least one indexable post and stepped support surfaces comprising the insert. In a second embodiment, relative depth of the panel insert is determined by abutment of a seating surface comprising at least one indexable rod and a support surface comprising the insert, the seating surface comprising plural longitudinal flats, each flat offset from the rod centerline by different distances, relative depth of the panel insert being determined by abutment of the support surface with a selected flat.Type: ApplicationFiled: June 12, 2007Publication date: December 18, 2008Inventor: Paul Alan Miller
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Patent number: 7442031Abstract: A blow molding apparatus that includes a preform supplying station for supplying preforms in an upright state, a heating station for heating the preforms to a suitable temperature condition for blow-molding while transporting the preforms, a blow station for blowing the heated preforms to form blow-molded products, and a collection station for collecting the blow-molded products.Type: GrantFiled: August 11, 2007Date of Patent: October 28, 2008Assignee: Frontier Inc.Inventor: Yoichi Netsu
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Publication number: 20080260888Abstract: The invention concerns a unit (6) for molding containers (2), comprising: a pair of half-molds (9), mounted respectively on two supports (10) mobile in horizontal translation; a primary transmission (19) controlling the movement of the supports (10); a mold base (14) mounted on a support (15) mobile in vertical translation; a secondary transmission controlling the movement of the mold base support (15); a locking device (16), comprising two mobile locks (17) co-operating each with a half-mold support (10); a tertiary transmission (21) controlling the movement of the locks (17). The transmissions include cams mounted on a common shaft, respectively coupled to the half-mold supports, to the mold base support and to the locks.Type: ApplicationFiled: September 8, 2006Publication date: October 23, 2008Applicant: SIDEL PARTICIPATIONSInventors: Philippe Freire-Diaz, Sylvain Auvray
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Publication number: 20080254161Abstract: Device for moulding thermoplastic containers by the blow moulding of preforms, comprising a mould (1) and a blowing assembly (2) with a nozzle (16) that can move axially between a raised position and a blowing position in fluid connection with a preform supported in the cavity of the mould. The half-moulds (3a, 3b) of the mould bear respective parts (Aa, Ab) together forming a male element (A) bordered by a wall (12) inclined towards the nozzle. The blowing assembly bears a female element (B) formed by a clamp (26) having an internal wall (30) complementary to the wall of the protuberance. In the blowing position, the cooperation between the male and female elements (A, B) locks the upper part of the closed mould.Type: ApplicationFiled: April 11, 2008Publication date: October 16, 2008Applicant: SIDEL PARTICIPATIONSInventors: Nicolas ROUSSEAU, Laurent DANEL
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Patent number: 7396225Abstract: A production device for performing a blow molding, charging, and sealing process for plastic containers has a first type of molding device (10) into which a tube of plasticized plastic material may be introduced. The molding device (10) of the first type may be rotated to individual spatially separate stations (22, 24, 26) about an axis (20). One station (24) performs the function of blow molding of the container. Another station (26) charges and seals the blow molded container. Simultaneously a tube of plasticized plastic material can be blow molded for production of the plastic container and a corresponding container produced in this manner at the other station can be charged with the medium, in particular one in the form of a fluid, and to seal it. The cycle times may be reduced in comparison to cycle times of production devices of the state of the art so that the rates of output of charged containers sealed under sterile conditions to be produced may be significantly increased.Type: GrantFiled: April 27, 2004Date of Patent: July 8, 2008Inventor: Bernd Hansen
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Publication number: 20080145471Abstract: The invention relates to an arrangement for receiving a mould comprising at least two die platens (14, 16) arranged on a base frame (12), at least one of said die platens (14, 16) being displaceably arranged on the base frame (12), and the front sides (15, 17) of the die platens (14, 16) essentially facing each other. At least one locking element (38 to 44) is displaceably arranged by means of a locking mechanism in such a way that it can be displaced from an inserted position, wherein the locking element (38 to 44) does not protrude from the surface of the front side (15, 17) of the first die platen (14, 16), at least into a second withdrawn position, in which the locking element (38 to 44) protrudes into a receiving opening (54 to 60) provided in the front side (15, 17) of the opposite die platen (38 to 44).Type: ApplicationFiled: February 1, 2006Publication date: June 19, 2008Inventor: Günter Richter
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Patent number: 7384261Abstract: A molding device for blow molding recipients made of a thermoplastic material, including a mold having two mold halves which are movable with respect to each other and provided with a locking device extending along the total height of the mold halves and including two respective hooks, which are oriented toward each other, two respective recesses adjacent to the hooks and a rotatable gib adjacent to the hook and interacting with the other hook in such a way that the two mold-halves are locked in the closed position thereof or are released from each other, the gib being inserted into the recess.Type: GrantFiled: November 4, 2004Date of Patent: June 10, 2008Assignee: Sidel ParticipationsInventors: Patrick Mie, Eric Lemaistre, Nicolas Rousseau, Pierre-François Langlois
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Patent number: 7384262Abstract: A mold opening/closing mechanism of a blow molding apparatus in which a plurality of blow-molding molds are transported along a circular transportation passage with a fixed feed pitch, and each blow-molding mold has a pair of molding dies capable of opening and closing in a lateral direction, including a turntable on which a plurality of blow-molding molds are mounted at intervals of a fixed angle; a vertical moving shaft that rises and falls as the turntable rotates; a slider that slides in a direction perpendicular to an opening/closing direction of the blow-molding molds as the vertical moving shaft rises and falls; and a pair of operation arms that convert sliding movement of the slider to opening/closing movement of the blow-molding molds.Type: GrantFiled: August 11, 2007Date of Patent: June 10, 2008Assignee: Frontier Inc.Inventor: Yoichi Netsu
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Publication number: 20080128957Abstract: A mold clamp assembly for a rotary-type or shuttle-type blow molding machine is mounted on a frame and includes a mold opening and closing drive connected to the two mold halves independently of the frame so that when the mold halves are closed, clamp forces are not transmitted to the mold halves through the frame.Type: ApplicationFiled: November 30, 2006Publication date: June 5, 2008Inventors: Paul W. Klinedinst, John M. Mathy, Paul M. Oles
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Patent number: 7381045Abstract: Quick change blow mold tooling includes a pair of mold cavity blocks that cooperate to define a series of blow cavities. The tooling further includes a pushup plate having a series of bottom contours that plug the otherwise open bottoms of the cavities when the pushup plate is against the bottom of the mold blocks. Each mold block is quickly attached to and detached from its supporting back plate using studs that fit into receiving holes on the back plate and cam locking shafts that are accessible from opposite side edges of the back plates. The back plates thus remain secured to platens of the bottle forming machine during change out of the tooling. Similarly, the push up plate has a pair of locking studs projecting from the underside thereof that are received within socket members attached to the machine. The socket members are provided with quick release threaded couplers that can be locked and unlocked by hand.Type: GrantFiled: August 30, 2005Date of Patent: June 3, 2008Assignee: R & D Tool & Engineering Co.Inventors: Randal L. Fields, Michael D. Whitney
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Patent number: 7377766Abstract: A moulding device for the production of containers in thermoplastic material, by blowing or blow-drawing, including a mould with two mould halves mutually mobile and provided with a locking device with two lock elements extending over the total height of the respective mould halves and provided with a number of projecting fingers in catches spaced at intervals, one lock element being fixed on one mould half and the other lock element sliding on the other mould half under the action of an actuator device.Type: GrantFiled: June 11, 2004Date of Patent: May 27, 2008Assignee: SidelInventors: Eric Lemaistre, Regis Leblond
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Patent number: 7364422Abstract: A driving device for moulds for the production of containers, for example, bottles or the like made of polyethylene, polypropylene or other plastic materials, in which the moulds (2) consist of two half-shells (3) designed to be brought together and pressed against one another along outer profiles (4), has a unit (7) which drives the movement of the half-shells (3), to which an electric main drive and a mechanical auxiliary drive, in particular hydraulic or pneumatic, are connected.Type: GrantFiled: May 16, 2005Date of Patent: April 29, 2008Assignee: Automa S.p.A.Inventor: Luca Maria Canossi
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Patent number: 7341443Abstract: A molding device for the production of containers in thermoplastic material by blowing or blow-drawing, including a mold with two mold halves mutually mobile and provided with a locking device with first and second lock elements, in the form of catches, extending over the whole height of the respective mold halves and a projecting wing on one mold half, including a rotation surface on which a mobile piece is applied over the whole height thereof which includes the second lock element, such that, on blowing, the forces are taken by said mobile piece over the height of the mold by means of the rotation surface.Type: GrantFiled: June 11, 2004Date of Patent: March 11, 2008Assignee: SidelInventors: Eric Lemaistre, Régis Leblond
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Patent number: 7335007Abstract: A mold insert set is provided for use with a mold system having first and second mold bodies, the first and second mold bodies aligning opposite each other during a molding process. Each of the mold bodies has at least one insert receiving region for replaceably receiving an insert of the mold insert set. Each of the inserts has an insert body, a mold cavity formed in the insert body, the mold cavity being for forming an object, and an opening in the mold cavity for aligning with a gas injection region of the mold body in which the insert is received. The gas injection region is where blow gas is introduced to the mold cavity for forming the object.Type: GrantFiled: April 18, 2005Date of Patent: February 26, 2008Assignee: Graham Packaging Company, L.P.Inventors: Gilles Perez, Michel Romand, Brice Arlaud
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Publication number: 20070296119Abstract: Discloses is: (i) a molding-system lock, (ii) a molding system having a molding-system lock, and/or (iii) a method of a molding-system lock, amongst other things.Type: ApplicationFiled: June 13, 2006Publication date: December 27, 2007Inventors: Martin Richard Kestle, Pierre Glaesener
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Patent number: 7300273Abstract: A system for forming a hollow body may include at least one closing unit positioned beneath the die of a tube extrusion device. The closing unit may include a first vertical closing plate and second vertical closing plate. Specifically, an upper horizontal closing plate is cantilevered to the first vertical closing plate carrying an upper mold half, while a lower horizontal supporting plate is cantilevered to the second vertical closing plate carrying a lower mold half. At least one hydraulic cylinder may connect to the horizontal supporting plate and be adapted to vertically displace the lower horizontal closing plate. The closing unit is configured in such a way that when the vertical closing plates are moved toward each other, the upper horizontal closing plate and the lower horizontal supporting plate interlock. The system can be configured to produce oblong hollow bodies requiring a horizontal mold parting plane.Type: GrantFiled: May 23, 2005Date of Patent: November 27, 2007Assignee: Thermo-Technik-Systeme GmbHInventor: Claus-Dieter Koetke
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Patent number: 7293979Abstract: A molding device moves at least one molding tool (10), especially for generating head geometries in plastic containers, by a link motion (22). The link motion brings the respective molding tool (10) into the closed position at least for closing the tool. This motion (22) is actuated by a drive (24), allowing for a novel drive and kinematic concept for the respective molding tool to completely avoid hydraulic drive means. The drive is preferably an electric drive, especially a step motor.Type: GrantFiled: January 24, 2004Date of Patent: November 13, 2007Inventor: Bernd Hansen
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Patent number: 7278848Abstract: A molding device includes a device for displacing at least one molding tool (10, 10a), especially for the production of geometrics of plastic containers, by a linking motion (12) which brings the respective molding tool (10, 10a) into a closing position (I-I) for at least the closure of the mold. The linking position (12) can be operated by a drive (14). Based on the linking motion (12), a novel drive and displacement concept for the respective molding tool is provided, enabling the hydraulic means to be totally dispensed with a drive, preferably an electric drive, can be used, especially in the form of a stepping motor.Type: GrantFiled: January 23, 2004Date of Patent: October 9, 2007Inventor: Bernd Hansen
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Patent number: 7267537Abstract: Clam shell-type blow mold apparatus has a pair of opposed upper mold halves that cooperate to define a partial blow cavity. A one-piece bottom mold portion that completes the blow cavity is locked up against the top mold portion by a locking assembly to prevent separation of the bottom mold portion from the top mold portion during the high pressure blow cycle. The locking assembly includes a support ring for the bottom mold portion that has a number of radially outwardly projecting male lugs adapted to fit into female receiving notches on opposed halves of a lock ring on the upper mold portion. Individual ledges at the bottoms of the notches underlie the lugs of the support ring when the mold halves are fully closed so as to preclude separation of the support ring, and thus the bottom mold portion, from the lock ring and the upper mold portion. The notches in the support ring are interposed between pairs of bolt holes in the lock ring.Type: GrantFiled: October 8, 2004Date of Patent: September 11, 2007Assignee: R & D Tool & Engineering Co.Inventors: Wesley R. Mitchell, William T. Riley
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Patent number: 7258538Abstract: A mold assembly for blow molding comprises first and second mating mold components, each mating mold component comprising molding surfaces open to a mating face of the mold component and defining the exterior of an article to be molded from a tubular parison and at least one height insert, the height and number of height inserts selected according to a desired longitudinal extension of the article to be molded, each height insert being retained in the mating mold component by retaining means retained with the mold component during insertion and removal of the height insert. A blow molding machine comprises a press mechanism for operating a mold assembly and a mold assembly according to the invention mounted thereto.Type: GrantFiled: February 2, 2005Date of Patent: August 21, 2007Assignee: Uniloy Milacron Inc.Inventor: Paul Alan Miller
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Patent number: 7258542Abstract: A mold assembly for blow molding plastic articles is provided having an upper mold member, a lower mold member and a lower support member. The lower mold member is preferably a relatively lightweight plate having a generally centrally located molding cavity matingly matched with an upper molding cavity in the upper mold member. The lower mold member is moved horizontally and optionally vertically beneath an extrusion head as a molten parison is extruded. The lower mold member is then transported to, and positioned within, the lower support member. The upper mold member is then closed over the lower mold member and lower support to close the mold assembly. The molten parison is then expanded in the mold cavity. After the molding operation, the plastic part may be removed and the lower mold member may be cooled by immersion in a cooling fluid. The apparatus to move the lower mold member during extrusion of the parison and to the molding station may be a robotic arm.Type: GrantFiled: December 8, 2004Date of Patent: August 21, 2007Assignee: Salflex Polymers Ltd.Inventors: Roger Elgner, Changize Sadr
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Patent number: 7249944Abstract: A device for blow molding or blow drawing of containers made of thermoplastic performs. The molding device is movable, mainly rotatable and includes at least one wallet-type mold provided with two mold-halves rotatable with respect to each other around an axis; two links which are connected to each other by one of the extremities thereof with the aid of a first pivot pin and pivotally connected to two mold-halves by the other extremities thereof on both sides of the common pivoting axis thereof; actuation devices which are connected to the first pivot pin and provided with at least one cam follower interacting with at least one respective fixed cam so that the first pivot pin is moved in a direction toward the mold or away therefrom, thereby opening or closing the mold. A compensating device acts so that at least one cam follower permanently contacts the respective cam.Type: GrantFiled: August 20, 2003Date of Patent: July 31, 2007Assignee: SidelInventors: Vigen Arakelyan, Nicolas Marc Alexandre Rousseau, Vincent Brachet, Pierre-François Langlois
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Patent number: 7241130Abstract: A device for blow-molding or stretch blow-molding of thermoplastic material performs, the mold including two half-molds and a mold base mutually mobile through actuating devices controlled by a fixed cam. A link rod device with three degrees of freedom in rotation is provided between one half-mold such that upon opening the two half-molds are spaced apart from each other without moving the base, then so that the base moves axially while the two half-molds continue to be mutually and completely spaced apart, and vice-versa.Type: GrantFiled: June 23, 2003Date of Patent: July 10, 2007Assignee: SidelInventor: Vigen Arakelyan
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Patent number: 7147456Abstract: The present invention relates to a mold device having a combination of molds for stretch blow molding, comprising a main blow mold 5, installed on a pair of platens 2 by being separated into split molds 5a, a pre-blow mold 10, attached to a lifting device 11 under the area between the split molds 5a, and movable in and out from the area between the split mold 5a, a neck mold 7, which is fitted into the pre-blow mold 10 and main blow mold 5 respectively, a blow core 20, which is fitted in to the neck mold 7, and a stretch rod. The pre-blow mold 10 comprises a cylindrical member having an open end on the upper portion, which is fitted into the neck mold 7. A bottom mold 8 of the main blow mold 5 is installed in the bottom portion of the split mold 5a by being separated into split bottom molds 8a. Lifting cylinders 9 are placed under the both of the split bottom molds 8a in order to make the bottom mold 8 movable in and out from the bottom portion of a cavity.Type: GrantFiled: August 25, 2004Date of Patent: December 12, 2006Assignee: A.K. Technical Laboratory, Inc.Inventors: Daigo Fujii, Takekazu Mochizuki
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Patent number: 7140871Abstract: A cam-operated guiding device for controlling a related movement of a member which is moreover continuously displaced, the device including two mutually transversely offset parallel cams with which co-operate respectively two coaxial rollers for bilaterally guiding said member. One of the cams is mounted via elastically deformable members designed to allow an elastic displacement of the cam relative to the other cam.Type: GrantFiled: December 6, 2002Date of Patent: November 28, 2006Assignee: SidelInventor: Alain Evrard
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Patent number: 7137804Abstract: Actuation system for opening and closing a two-part mold that includes first and second mold parts movably mounted to each other. The actuation system includes a carriage which can move in each of two directions, a first pivoting part coupled to the first mold part, a second pivoting part coupled to the second mold part, and at least one actuating member connected to each of the carriage and at least one of the first and second pivoting parts. This abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.Type: GrantFiled: June 7, 2002Date of Patent: November 21, 2006Assignee: ADSInventors: Claude Mue, Patrick Trassard, Luc Dorin
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Patent number: 7131830Abstract: The present invention provides a blow molding machine comprising a plurality of pillars 5 set up facing on a seat 4 above a base 3 located above a blow mold 2; a stationary platen 6 provided bridging on the top portions of the pillars 5; a moving cylinder 7 set on both side of the stationary platen 6; and a holding plate 9 of blow-core members, which is connected with a piston rod 7a of the moving cylinder 7, and in which the pillars 5 are inserted vertically movable; and a clamp plate 15 projecting at both ends from the holding plate 9 outwardly, and a clamp block 16, which includes internally a pair of hydraulic cylinders 18 to clamp the clamp plate 15 from both sides with rams when the holding plate 9 is in the lower limit position, which is provided on both sides of the seat 4.Type: GrantFiled: February 27, 2004Date of Patent: November 7, 2006Assignee: A.K. Technical Laboratory, Inc.Inventors: Hiromitsu Kobayashi, Masahiro Miyashita, Hidetoshi Tatebe, Makoto Kifune
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Patent number: 7114945Abstract: The shifting of the parting line between split molds due to mold clamping force is prevented. A blow mold device (11) wherein a pair of split molds forming a blow cavity (12) are a set of molds, and a plurality of such sets are attached in parallel to mold-attaching plates (15, 16) with a clearance defined between adjacent sets. One split mold (13) is attached by bolts (17) inserted in bolt holes (23) in the form of loose holes in the mold-attaching plate (15) in such a manner as to allow relative lateral shifting of the split mold (13) and mold-attaching plate (15). The other split mold (14) is fixedly attached to the mold-attaching plate (16) by locating pins (18) and bolts (17). A joint is installed that integrally connects the two split molds to their parting surface and that is composed of a taper pin (19) and a socket (21) for preventing the shifting of the parting line.Type: GrantFiled: July 26, 2002Date of Patent: October 3, 2006Assignee: A.K. Technical Laboratory, Inc.Inventor: Takaharu Horiuchi
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Patent number: 7108501Abstract: The present invention refers to an Integrated Injection-Stretch-Blow Mold suitable for producing bi-orientated thermoplastics containers, which can be installed in an injection molding machine, occupying the space normally destined for injection molds. It consists of a central chassis (8) having in its interior a central block mechanism (30), with the injection cores (6cores (12) and the mechanisms for stretch and blow (9, 13, 23) and for release of the finish containers (18, 20); a motorized system (31), connected to the central block mechanism (30), by a rotating plate shaft (11), for the transport of the performs at least an injection mold (1) and a blow mold (14) placed around the central chassis (8).Type: GrantFiled: February 11, 2002Date of Patent: September 19, 2006Assignee: Plasdan-Projectos Industriais Para a Industria de Plasticos, S.A.Inventors: Paulo Juliano Pereira da Silva Araujo, Antonio Pereira Santos
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Patent number: 7097446Abstract: A blow-molded plastic container and reinforced lid are simultaneously produced in a blow mold. A lid is reinforced by having a portion of the lid formed by blow molding techniques and another portion of the lid formed by compression molding techniques. The container and lid combination, a method for making the combination and apparatus for making the combination are provided.Type: GrantFiled: October 30, 2003Date of Patent: August 29, 2006Assignee: Graham Packaging Company, L.P.Inventor: Matthew A. Crider
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Patent number: 7048531Abstract: The invention concerns a molding unit comprising, between two components consisting of a mold element (22) and its support (18), a compensating chamber (56) wherein a pressurized fluid is injected to move apart the mold element (22) from its support (18). The invention is characterized in that the chamber (56) is delimited by a membrane (42) comprising a peripheral seal (44) with a lip, the membrane (42) being urged to press against one of the components (22, 18) and the seal lip (44) being urged to be tightly pressed against the other of the components (18, 22).Type: GrantFiled: July 24, 2001Date of Patent: May 23, 2006Assignee: SidelInventor: Cedric Bianchini
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Patent number: 7033162Abstract: An injection blow molding device in which a lip mold is formed in different shapes for an injection mold and a blow mold. Mold clamping surfaces corresponding to the different shapes are formed on the injection mold and the blow mold, respectively, to prevent an air leakage from the blow mold. An upper portion of an outside surface of the lip mold which contacts the mold is formed in a tapered surface whereas a lower end portion of the outside surface is formed in a vertical surface. The upper portion and the lower portion of a surface contacting the lip mold, of each of the injection mold and the blow mold are formed respectively in a tapered surface and a vertical surface that correspond to the tapered surface and the vertical surface of the outside surface of the lip mold. Clamping the lip mold in the injection mold is performed at the tapered surface of the upper portion and clamping the lip mold in the blow mold is performed at the vertical surface of the lower end portion.Type: GrantFiled: November 25, 2003Date of Patent: April 25, 2006Assignee: A.K. Technical Laboratory, Inc.Inventors: Hisao Yamaguchi, Wataru Horiuchi
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Patent number: 6994543Abstract: An internally label-sticking mold includes an outer mold and an inner mold. The outer mold has an interior hollow for containing a shaped material and the inner mold, and the inner mold has an interior hollow for containing a label therein. Thus, when the outer mold with the shaped material placed in its interior hollow is combined with the inner mold with the label placed in its interior hollow for blowing and molding a plastic product, the shaped material becomes a finished plastic product stuck with a label integral.Type: GrantFiled: May 8, 2003Date of Patent: February 7, 2006Inventor: Huang Sheng Chang
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Patent number: 6994542Abstract: A mold half carrier has first and second air flow compensating surface areas. The second air flow compensating surface area encloses the first air flow compensating surface area. The first air flow compensating surface area provides pressure compensation for formation of smaller containers. Both air flow compensating surface areas are utilized for formation of larger containers. A shut off valve controls air flow through a passage in the mold carrier extending between the first and second air flow compensating surface areas. The second air flow compensating surface area has an exhaust passage for bleeding unwanted pressurized air therefrom when the shut off valve is closed. The compensating surface areas are separated from each other by a common continuous groove and an O-ring mounted in the groove. The groove has an arcuate main portion for receiving the O-ring and an auxiliary portion into which a portion of the O-ring may collapse.Type: GrantFiled: December 30, 2003Date of Patent: February 7, 2006Assignee: Wentworth Mold Inc.Inventors: Tar Tsau, Reinhold Ernst Nitsche, Kyi San Kyi
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Patent number: 6976836Abstract: In a biaxial stretch blow molding apparatus (10) for wide-mouthed containers, preforms (6) that are in an inverted state are conveyed on a single plane by preform carriers (40) that go around a carrier circuit (30) in the form of a loop, are heated via a heating station (60), and are then transferred via a transfer station (80) to stretch blow molding mold assemblies (72) that go around a circular looped path (71). The molded wide-mouthed containers (1) are taken out of the stretch blow molding mold assemblies (72) along a conveying path on a same plane and collected by a collection station (90). Wide-mouthed containers can be formed continuously and at high speed, which is less wasteful and more economical than the case where wide-mouthed containers that are formed from films.Type: GrantFiled: March 11, 2003Date of Patent: December 20, 2005Assignee: Frontier Inc.Inventor: Saburo Suzuki
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Patent number: 6951629Abstract: A blow mold (1) for a stretching machine or a glass blowing machine, comprising two mold halves (3, 4) which are pivotably connected by at least one connecting pin (2), and a shutting device and locking device in the form of a closing clamp (7) which can be slid directly onto the mold halves (3, 4) from the side of the connecting pin (2). The mold halves (3, 4) are closed around the connecting pin (2) by the sliding, pressing contact of the closing clamp (7) and in the closed position, are pressed against each other without a gap, resulting in a mechanically simple, space-saving blow mold (1).Type: GrantFiled: May 28, 2001Date of Patent: October 4, 2005Inventor: Hermann E. H. Kronseder
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Patent number: 6923637Abstract: Each of the clamping plates of the closing unit of the blow molding machine has secured thereto a pivotable locking means which in the calibration position in the swung-up state comes into engagement with a plate which is part of the calibration device. A short friction-type connection which is symmetrical relative to the mold parting plane is thereby established between the blow mold and the calibration cylinder during calibration so that the calibration forces are transmitted in an exact manner. The locking means swing downwards when the blow mold is opened and/or the closing unit returns to the head station. Collisions with other machine parts are thereby ruled out.Type: GrantFiled: April 25, 2003Date of Patent: August 2, 2005Assignee: BEKUM Maschinenfabriken GmbHInventors: Gottfried Mehnert, Ulrich Hennemann
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Patent number: 6923636Abstract: A blow-molding machine for producing blow-molded hollow bodies from a thermoplastic material, includes two blow-mold halves which can be horizontally displaced and provided with separate drive units for a transport drive and for the sequence of movements of the mold closing and locking device to open and close the blow mold halves. Conventional blow-molding machines are still equipped with hydraulic drives at least for the mold closing and locking device. In order to provide a blow-molding machine that can for example be operated under clean-room conditions, the drive unit of the blow-molding machine according to the invention is configured for the clamping elements of the mold closing and locking device as an electromotive direct drive with a spindle drive and a spindle mechanism with recirculating rollers.Type: GrantFiled: May 13, 2002Date of Patent: August 2, 2005Assignees: Mauser-Werke GmbH & Co. KG, Kautex Maschinenbau GmbHInventors: Peter Langos, Wolfgang Hamlischer, Johannes Geilen, Markus Holbach, Wolfgang Schmitt, Erich Kiefer, Karsten Friedrichs, Olaf Weiland
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Patent number: 6918754Abstract: A blow mold machine, comprising two lockable mold halves. A locking element is fixed onto one mold half and a shaft with at least one recess is mounted in the other mold half. The shaft can be pivoted between a locking position, in which it lies against the locking element and a release position, in which the locking element can be displaced past the recess. A locking mechanism with a particularly simple construction can thus be achieved.Type: GrantFiled: March 9, 2001Date of Patent: July 19, 2005Assignee: Krones AGInventor: Thomas Albrecht
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Patent number: 6884059Abstract: Machine for moulding containers (3a) made of plastic material, comprising an assembly (2) for extruding tubes (3) of plastic material, a blowing assembly (5), a mould for containing containers (3a), formed by two half-moulds (4a, 4b) movable upon actuation of associated first means (100), in a longitudinal direction (X—X) and symmetrically with respect to a fixed axis (Z—Z) perpendicular to said longitudinal direction, the assembly formed by the mould (4) and the associated first actuating means (100) being movable, upon actuation of second actuating means (200), in a transverse direction (Y—Y) from a position corresponding to the extrusion assembly to a position corresponding to the blowing assembly and vice versa, wherein said first means for actuation in the longitudinal direction are of the electric type and means (110) for symmetrically adjusting the distance of the two half-moulds (4a, 4b) from said fixed axis (Z—Z) are provided.Type: GrantFiled: October 2, 2002Date of Patent: April 26, 2005Assignee: Magic MP S.p.A.Inventor: Ferruccio Giacobbe
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Patent number: 6851944Abstract: A mold tool clamping device (30) for a blow mold comprising two mold halves (13 and 13). For fixing of the rear blow mold half to the clamp plate associated therewith, there is provided at least two wedge locks or cam locks, which are provided in a symmetric arrangement relative to the “vertical” transverse central plane of the rear mold tool, which are clampable with wedges, which, supported on the back side of the clamp plate, transverse to the longitudinal axis of the clamp bolts, are drivable into their anchor groove of anchor keyways, wherein these wedge locks are so arranged, that the wedges are drivable “from the side” into their clamp position in designed “grooves” of the clamp bolts complimentary thereto. This makes possible a rapid and positionally accurate securing of the rear mold half to its rear clamp plate.Type: GrantFiled: October 25, 2002Date of Patent: February 8, 2005Assignee: Hesta-Graham GmbH & Co KGInventor: Alfred Effenberger
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Patent number: 6841118Abstract: A mold assembly for blow molding plastic articles is provided having an upper mold member, a lower mold member and a lower support member. The lower mold member is preferably a relatively lightweight plate having a generally centrally located molding cavity matingly matched with an upper molding cavity in the upper mold member. The lower mold member is moved horizontally and optionally vertically beneath an extrusion head as a molten parison is extruded. The lower mold member is then transported to, and positioned within, the lower support member. The upper mold member is then closed over the lower mold member and lower support to close the mold assembly. The molten parison is then expanded in the mold cavity. After the molding operation, the plastic part may be removed and the lower mold member may be cooled by immersion in a cooling fluid. The apparatus to move the lower mold member during extrusion of the parison and to the molding station may be a robotic arm.Type: GrantFiled: February 11, 2002Date of Patent: January 11, 2005Assignee: Salflex Polymers Ltd.Inventors: Roger Elgner, Changize Sadr
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Patent number: 6837699Abstract: The invention of this patent is to be used in molding applications. An external applied force causes an actuator rod to move in a linear motion. This motion causes two platens to move simultaneously together to form a clean, even mold. The platens move linearly on tie bars, which guide the linear movement of the platens. Linkage arms are mounted on a mounting plate and the linkage arms are connected to the platens. This allows the clamping and applied force stresses on the platens to be dependent on the mounting plate, rather than the tie bars. The platens travel at the same speed and distance in relation to each other. The result is an evenly produced part that comprises two die or mold halves which are perfectly centered.Type: GrantFiled: March 14, 2002Date of Patent: January 4, 2005Inventor: John Jandura
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Patent number: 6833103Abstract: A blow molding mold has first and second fixtures. The first fixture includes drive means, typically in the form of pins, while the second mold fixture has drive receiving means, typically in the form of holes. When the second mold fixture is in registration with the first mold fixture, the drive means are extended to lock and locate the two fixtures together to enable blow molding without a blow molding press. The method of blow molding uses a robotic arm to move a lightweight second mold fixture to accept a parison as it is extruded. After extrusion the arm moves the second fixture toward the first fixture so that the fixtures can be located and locked together. A single robot using a single extrusion head can serve several mold stations depending upon cycle times.Type: GrantFiled: February 11, 2002Date of Patent: December 21, 2004Assignee: Salflex Polymers Ltd.Inventors: Roger Elgner, Changize Sadr
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Patent number: RE39769Abstract: The invention concerns a device for producing thermoplastic containers, in particular bottles, by the blow-molding or stretch blow-molding of a preheated preform. The device comprises at least one mould consisting of two half-molds (2) each supported by a mould carrier, the two mould carriers being movable relative to each other. Each half-mould (2) comprises a shell holder (9), supported by the respective mould carrier, and a shell (7) which is equipped with a half-impression (8) of the container to be obtained and can be rendered integral in a detachable manner with its shell holder (9) by rapid-fastening means (19-23). The shell (7) and the shell holder (9) are of complementary shapes such that they contact each other at least partially for heat conduction purposes whilst the pipes and connections for circulating and/or heating fluids are provided in the shell holder alone.Type: GrantFiled: April 16, 1996Date of Patent: August 14, 2007Assignee: SidelInventors: Dominique Briere, Léon Coisy, Paul La Barre, Pascal Santais