Opposed Press Shaping Members Insertable Between Opposed Pressure Applying Means Patents (Class 425/411)
  • Publication number: 20070284780
    Abstract: A transfer press apparatus for molding a material panel in a predetermined shape is provided, which comprises: (a) an upper mold; (b) a lower mold; (c) a crankshaft to supply power to move the upper and lower molds; (d) a blank holder connected to an outer circumference of the lower molder; (e) a finger arranged between the upper mold and the lower mold so as to lift the panel after the panel is molded by the upper and lower molds; and (f) an operating die face unit mounted on the blank holder so as to provide a space for receiving the finger when the finger is used to lift the panel. A method for controlling the apparatus is also provided.
    Type: Application
    Filed: October 30, 2006
    Publication date: December 13, 2007
    Applicant: Hyundai Motor Company
    Inventor: Mansuhk Suh
  • Patent number: 7229274
    Abstract: A tooling system in a press for forming a product from a blank of material disposed between a punch assembly and a die assembly and a method of using the same. The tooling system comprises a knockout and a bushing. The knockout further comprises a shaft having opposed ends, a plate fixed to one opposed end, and a tapered portion. The bushing is supported by one of the punch and die assemblies and defines a lumen configured to slidably receive the shaft for axial movement between an extended position and a retracted position. The lumen has a tapered receiving section at one end thereof configured to mate with the tapered portion of the knockout when the shaft is in the extended position.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: June 12, 2007
    Assignee: Dixie Consumer Products LLC
    Inventors: Albert D. Johns, Mircea T. Sofronie
  • Patent number: 7172400
    Abstract: The present invention provides an improved multi-mold apparatus for manufacturing friction members, with each mold composed of a set comprising a first (top) mold, a second (bottom) mold, and a frame mold. The apparatus is capable of correcting any misalignment in the mountings of the plurality of molds and accurately aligning the molds by movably supporting at least one of the first mold, the second mold and the third mold by first, second and frame bases, respectively, so that the base and molds are movable laterally, in a direction perpendicular to the direction of advance. Projections are formed on one of the first mold and either the frame mold or the back plate and bonding through-holes are formed on the remaining mold or the back plate, so that the projections engage the holes so as to align the first mold and the frame mold accurately.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: February 6, 2007
    Assignee: Nisshinbo Industries, Inc.
    Inventors: Yoshinori Sakamoto, Masanori Ueno
  • Patent number: 7160092
    Abstract: A structure for presses includes: a resistant structure having at least one resistance element having a flat annular element internally of which and in diametrically opposite positions two facing surfaces are arranged, between which facing surfaces at least one tool can be inserted, for exerting a pressing action and compressing between two bodies, the two facing surfaces receiving equal and opposite reactions to the pressing action. Cuts at ends of the facing surfaces involve a total thickness of the facing surface. Each cut includes a first tract parallel to a pressing direction and a second circular part; the circular second part constituting a snug seating for discs. Interpositioning elements are provided for being interpositioned between ends of the facing surfaces so that two resultants, parallel to the pressing direction, of action exerted on each facing surface are located externally to centers of corresponding circular second parts.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: January 9, 2007
    Assignee: System S.p.A.
    Inventor: Franco Stefani
  • Patent number: 7147454
    Abstract: An optical lens molding apparatus includes a cylindrical mold, a first mold core, a second mold core and a correctional ring. The first and the second mold core have a columnar shape and are disposed inside the cylindrical mold to form a cavity. Furthermore, the first and the second mold core have a planar portion at the end surface facing the cavity. The correctional ring is disposed on the planar portion of the second mold core. The correction ring corrects any face tilting of the molded optical lens due to the tilting of the first mold core. The present invention also provides a precision molding apparatus for forming precision parts.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: December 12, 2006
    Assignee: Asia Optical Co., Inc.
    Inventor: Kun-Chih Wang
  • Patent number: 7101164
    Abstract: A material handling system for a hydrolyzer comprises a material injection assembly having a ram; a sleeve in which the ram reciprocates during use; a gate plate operable from between an open position, wherein a plug of municipal solid waste may exit the sleeve, and a closed position; and a material exit assembly. The material exit assembly comprises a processed material handling apparatus including a processed material compaction chamber; and a plunger assembly attached to the compaction chamber and further including a working cylinder having a cylinder shaft and a ram operably connected to the shaft enabling the ram to compact the processed material within the compaction chamber upon actuation of the cylinder and the extension of the shaft therefrom.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: September 5, 2006
    Assignee: Bouldin Corporation
    Inventor: Floyd E. Bouldin
  • Patent number: 7065986
    Abstract: A molding assembly, that includes: a plurality of support pillars fixedly attached to a support structure, wherein each support pillar includes a recessed seat; a mold support member, and; a flexible ring for holding a mold in contact with the mold support member, wherein the flexible ring, while holding the mold, rests upon the recessed seat of the support pillar.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: June 27, 2006
    Assignee: Eastman Kodak Company
    Inventor: Stephen C. Meissner
  • Patent number: 6997696
    Abstract: In a method and apparatus for cutting expanded graphite sheet material, at least one cutting tool is urged against the sheet(s). The cutting tool has at least one ridge extending therefrom that includes a substantially tapered cross-section having sloping sides and an edge surface. At least a portion of the sheet material is displaced as the ridge is urged against the sheet. A region of the sheet material in contact with the ridge is compressed so that the density of the region reaches or exceeds the breaking density of the sheet.
    Type: Grant
    Filed: May 21, 2003
    Date of Patent: February 14, 2006
    Assignee: Ballard Power Systems Inc.
    Inventors: Neil V. Davis, David Brown
  • Patent number: 6908296
    Abstract: A tooling system in a press for forming a product from a blank of material disposed between a punch assembly and a die assembly and a method of using the same. The tooling system comprises a knockout and a bushing. The knockout further comprises a shaft having opposed ends, a plate fixed to one opposed end, and a tapered portion. The bushing is supported by one of the punch and die assemblies and defines a lumen configured to slidably receive the shaft for axial movement between an extended position and a retracted position. The lumen has a tapered receiving section at one end thereof configured to mate with the tapered portion of the knockout when the shaft is in the extended position.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: June 21, 2005
    Assignee: Fort James Corporation
    Inventors: Albert D. Johns, Mircea T. Sofronie
  • Patent number: 6887064
    Abstract: Molding apparatus for producing non-planar parts using compaction molding compounds (CMC) comprises a mold having a cavity which receives CMC therein, the mold including a movable platen assembly having at least two plates movable in substantially parallel directions to compact CMC placed in the cavity, and an actuating mechanism which moves the plates simultaneously at different respective velocities such that the CMC is substantially uniformly compacted into a non-planar shape with a predetermined, substantially uniform density.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: May 3, 2005
    Inventor: Sung Kuk Soh
  • Publication number: 20040253337
    Abstract: A method of producing a plastic molded object, including preparing a mold assembly including a cavity that forms a surface of the plastic molded object with a transfer surface of the cavity, a slide cavity piece including a sliding surface and a molding surface forming at least a part of one surface of the plastic molded object, and a metallic mold that slidably holds the slide cavity piece, heating the mold assembly to a temperature lower than a softening temperature of a molten resin, filling the cavity with the molten resin, cooling the molten resin to a temperature lower than the softening temperature of the molten resin, wherein the cooling includes contracting a volume of the molten resin, and sliding the slide cavity piece toward the molten resin by a contact-force of the molding surface with the molten resin, thereby compensating for contraction of the volume of the molten resin.
    Type: Application
    Filed: September 29, 2003
    Publication date: December 16, 2004
    Inventors: Masaomi Hashimoto, Motoyasu Murai
  • Publication number: 20040247728
    Abstract: The present invention provides a manufacturing apparatus which is a rotary press that allows mass production of a molded product consisting of a plurality of molded parts part of whose at least two molded parts faces outside of the molded product, wherein at least the upper punch and preferably both the upper and lower punches is/are split into a plurality of split punches, the rotary press comprising means for moving each of the plurality of split punches and means for allowing manipulation of the plurality of split punches for at least two of compression operations, a first molding material supply-charging unit for supplying and charging a first molding material into a space in the die formed above the tip portion of the lower punch or formed by the tip portions of the split punches of the lower punch, a second molding material supply-charging unit for supplying and charging a second molding material into a space formed above and/or around the first molding material in the die, a precompression molding unit
    Type: Application
    Filed: February 24, 2004
    Publication date: December 9, 2004
    Inventor: Yuichi Ozeki
  • Patent number: 6716023
    Abstract: A thermal pressure die for pressing and heating a trim cover assembly for automotive seat into a desired uneven configuration, the trim cover assembly having a decoratively finished outer surface with aesthetic solid or projecting decorative patterns defined thereon. A protection element of elastic and heat insulation property is provided on an uneven die surface of the die which is to be brought into pressing contact with such decoratively finished outer surface of trim cover assembly. Hence, the solid or projecting decorative patterns on the trim cover assembly outer surface are protected by the protection element against any deformation due to pressure and heating generated in the thermal pressure die.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: April 6, 2004
    Assignee: Tachi-S Co., Ltd.
    Inventors: Masakazu Yoshimura, Tatsuo Majima
  • Patent number: 6669891
    Abstract: An apparatus and method for producing a sheet of brake lining material utilizes a mold which has a mold base and a mold frame. The mold frame is slidingly received on the mold base. The sliding relationship between the mold frame and the mold base results in a mold cavity which has a variable volume. The variable volume of the mold cavity allows the cavity to adjust to the size of material initially placed in the mold cavity thereby eliminating any mold flash and/or scrap material.
    Type: Grant
    Filed: April 2, 1999
    Date of Patent: December 30, 2003
    Assignee: Midwest Brake Bond Company
    Inventor: Keith F. Barnhardt
  • Publication number: 20030168780
    Abstract: A tooling system in a press for forming a product from a blank of material disposed between a punch assembly and a die assembly and a method of using the same. The tooling system comprises a knockout and a bushing. The knockout further comprises a shaft having opposed ends, a plate fixed to one opposed end, and a tapered portion. The bushing is supported by one of the punch and die assemblies and defines a lumen configured to slidably receive the shaft for axial movement between an extended position and a retracted position. The lumen has a tapered receiving section at one end thereof configured to mate with the tapered portion of the knockout when the shaft is in the extended position.
    Type: Application
    Filed: March 5, 2002
    Publication date: September 11, 2003
    Inventors: Albert D. Johns, Mircea T. Sofronie
  • Patent number: 6468381
    Abstract: The present invention is an improved method for making a golf ball. Two cups are molded from an elastomer separately from a center. The cups are molded on both sides of a center mold plate with hemispherical protrusions having a channel circumventing the protrusions to capture excess cup material. The material in the channel aids in centering of the hemispherical cavity and allows the reduction or elimination of reinforcing polymer material. The protrusions force the elastomer cup material into cavities in outer mold plates on either side of the center mold plate, thus forming cups with cavities. The solid or fluid-filled center is placed within the cup cavities, and the cups are joined, preferably by raising the temperature of the mold above the cure activation temperature of the cup material.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: October 22, 2002
    Assignee: Acushnet Company
    Inventor: Megan Morgan
  • Patent number: 6443724
    Abstract: A forming tool has a die with a seat for receiving material to be formed, an upper punch axially movable into and out of the seat from one side of the die, a lower punch axially movable into and out of the seat from the opposite side of the die, a movable loading device for introducing the material into the seat, an impact press for subjecting the upper punch to a series of compacting impacts, a unit for supplying drive force to the tool and a control device for controlling the motion of the movable parts of the tool. An impact head is positioned above the die, supports the upper punch, and receives the compacting impacts delivered by the impact press. The impact head is guided and aligned with a cavity in the die by a vertically adjustable roof. The impact head is thereby mechanically disengaged from the roof.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: September 3, 2002
    Assignee: SKF Nova AB
    Inventors: Jonas Jerklind, Pär Sundqvist
  • Publication number: 20010007685
    Abstract: In a retaining piece interposed between the adjacent rolling balls, a concave surface of each of both side surfaces of the retaining piece where it contacts with the spherical surfaces of the balls is configured to partly contact with the spherical surface of the ball. The concave surface includes a linear contact portion to be in contact with the ball and an approximate curved surface having the radius of curvature approximate to that of the ball, which is located on the inner side of the linear contact portion. In addition, recesses which are joined to the gate portion and the ejector pin in a molding process are formed in the concave surfaces. A recess is formed at the joining portion or near a parting line. Fins formed in the molding process are capable to be put into the recess.
    Type: Application
    Filed: January 9, 2001
    Publication date: July 12, 2001
    Inventors: Shinichi Kasuga, Ryoichi Sato, Hiroki Yamaguchi
  • Patent number: 6167802
    Abstract: A sliding frame press utilizing a single pressure generating actuator to simultaneously apply the same uniform load to opposite sides of a workpiece. Two posts integral to sliding frame part 2 are freely and movably supported at the upper surface and within a post guide part located at both sides of frame base 5. Pressure is exerted on pressure rod 7 by the force applied at actuator 6. When the pressure applied to pressure rod 7 by actuator 6 exceeds the free weight of sliding frame part 2, a reactive force generated from pressure rod 7 operates to raise sliding frame part 2, thus simultaneously applying a uniform load to opposing sides of the workpiece located between pressure rod 7 and the lower punch 9 operatively connected to the sliding frame part 2.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: January 2, 2001
    Assignees: Tsutomu Yamamoto
    Inventor: Kohki Anzawa
  • Patent number: 6165391
    Abstract: A method and apparatus forming a micro-relief pattern on a surface of an optical disc, which micro-relief pattern may form a holographic image in which a shim bearing a micro-relief pattern is pressed onto the surface of the disc and the apparatus used ensures that a greater force is applied to the periphery of the disc and the remainder of the surface on which it is desired to form the micro-relief pattern, such method and apparatus enables a satisfactory relief pattern to be formed over a substantial area of the surface of the disc.
    Type: Grant
    Filed: March 1, 1999
    Date of Patent: December 26, 2000
    Assignee: Nimbus Manufacturing (UK) Limited
    Inventor: Paul Vedamuttu
  • Patent number: 6123891
    Abstract: A method for molding a closed profile member such as a sealing gasket, sequentially comprising a static step of molding a series of contiguous segments of an unprocessed strip with two ends. Each segment is moved substantially over its own length so that it is replaced by the following segment once it has been molded, and the final segment is made by juxtaposing, connecting and molding the two ends of the unprocessed strip together. A mold with two mold tools operative along part of its length is used to carry out the method. A temperature gradient is generated so that the temperature at the mold ends is 25-35.degree. C. lower than the temperature at the center. The mold is part of a fixed or portable device including mold heating means and means for exerting pressure on the unprocessed strip.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: September 26, 2000
    Inventor: Jacques De Tonnac
  • Patent number: 6099771
    Abstract: Method for making flexible, noncarpeted thermoplastic articles, including floor mats. The method includes placing a flat slab of thermoplastic material in a cavity between first and second mold sections with each mold section having a mold surface for contacting a respective surface of the slab. The mold cavity is placed under vacuum and the mold sections are heated under compression to cause the thermoplastic material to heat and flow against the mold surfaces. The process further involves cooling the mold sections under compression and removing the floor mat from the mold sections. Vacuum is maintained in the mold cavity by way of a check valve device during transition from the heated compression apparatus to the cooled compression apparatus and during the cooled compression step. In this general manner, a floor mat formed with a Class A, textured finish and with a variable cross sectional thickness may be manufactured in a short cycle time.
    Type: Grant
    Filed: July 8, 1998
    Date of Patent: August 8, 2000
    Assignee: Lear Corporation
    Inventors: Patrick E. Hudkins, Vinod Parekh
  • Patent number: 6083337
    Abstract: An assembly for use in bonding an trim cover to a foam pad along a pair of conveyor line in a process of a plurality of stations. A plurality of tool carriers are transported along each of the conveyor lines to each station. The tool carrier supports at least one mold assembly for bonding an air impervious adhesive film between the cover and the foam pad. A collar assembly pivotally supports a press platen above the mold assembly and provides pivotal movement between an open position spaced at a predetermined angle above the mold assembly and a closed position compressing the foam pad against the trim cover and mold assembly. The tool carrier includes a pair of vacuum inlet connectors for engagement by a vacuum snorkel to provide vacuum pressure to the mold assembly and travel with the tool carrier along the conveyor line between consecutive process stations.
    Type: Grant
    Filed: June 19, 1998
    Date of Patent: July 4, 2000
    Assignee: Lear Corporation
    Inventors: Robert Bailey, Scott Barber, John Sapielak, Ron Monk, Dennis Sosnowski, Raymond Ormachea, Brian Scholfield, Don Hamilton
  • Patent number: 6048191
    Abstract: A machine which is appropriate to flatten pastry or dough and to obtain disks of different diameter size or thickness with or without peripheral edge. The machine is used for preparing typical dishes, such as: pizza pies, tarts, cakes, piadine romagnole, tigelle, montanare, etc. The characteristic feature of the machine is that of having realized a device which, by imitating manual work, flattens a pastry ball without squeezing it, starting from the center towards the periphery, without modifying the characteristic softness, uniformity and rising capacity which are typical of manually manipulated pastry or dough.
    Type: Grant
    Filed: September 16, 1997
    Date of Patent: April 11, 2000
    Inventor: Lauro Beltrami
  • Patent number: 6042754
    Abstract: The present invention relates to making optical articles such as opthalmic lenses by molding and, in particular, to using a continuous extrusion-compression molding method to make plastic lenses whereby a polymer melt is fed from an extruder or melting apparatus to a first die of a plurality of rotating or conveyed sequentially processed compression die sets comprising a first die and a second die. The die sets are positioned on die supports on a rotating turntable or conveying system, the lenses formed by compressing the die sets with pressing means associated with each die support, the lenses separated from the dies and the dies recycled to die loading and the melt feed step of the process and the process repeated until the desired number of lenses or other optical articles such as compact disk substrates are produced.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: March 28, 2000
    Assignee: Optima, Inc.
    Inventors: Zhou Yang, Yinghui Wu
  • Patent number: 6015512
    Abstract: An extrusion-compression molding process is provided for making optical articles wherein a melt shot of optical polymer extrudate is fed to sequentially moving lower dies of a die set including a lower die and an upper die and then the upper die positioned on top of the melt shot containing lower die and the die set compressed forming the optical article. After the optical article is formed, the lower die and upper die are separated and recycled for forming additional optical articles. The optical polymeric material may be in the form of pellets and melted in an extruder. A reaction extruder may also be employed where the optical polymeric material is produced in the reaction extruder from optical polymer monomers. A shuttle carriage is preferably used to transport the lower die, melt shot containing lower die and melt shot containing die set through the steps of the molding process. A control system is used to obtain input data and generate output signals to monitor and control the process steps.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: January 18, 2000
    Assignee: Optima Inc.
    Inventors: Zhou Yang, Yin-Nian Lin
  • Patent number: 6007754
    Abstract: A method by which to easily and inexpensively make a matched set of male and female embossing dies so that articles can be embossed in an arts and crafts environment. Upper and lower sheets of adhesive are applied to opposite faces of a substrate, and each adhesive layer is covered with a paper backing to form a sandwich with the substrate secured between the upper and lower sheets. A design to be embossed is then cut through the sandwich. A portion of the backing covering the upper adhesive sheet is removed to expose an area of the adhesive, and a first die plate is bonded to the upper sheet. A different portion of the backing covering the lower adhesive sheet is removed to expose an area of the adhesive, and a second die plate is bonded to the lower sheet.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: December 28, 1999
    Assignee: Ellison Educational Equipment, Inc.
    Inventors: Alan D. Crawford, Kevin L. Corcoran, Adrienne T. DiCamillo
  • Patent number: 5945214
    Abstract: A press plate for producing decorative laminate from resin impregnated paper, with alumina particles on its pressing surface, is coated with diborides selected from the group consisting of hafnium diboride, molybdenum diboride, tantalum diboride, titanium diboride, tungsten diboride, vanadium diboride, or zirconium diboride or mixtures thereof for making the press plate resistant to scratching. The preferred diborides are titanium and zirconium. The most preferred diboride is titanium. The color, gloss and surface appearance of laminate pressed with a titanium diboride coated press plate is substantially the same as laminate pressed with the press plate before coating.
    Type: Grant
    Filed: August 28, 1996
    Date of Patent: August 31, 1999
    Assignee: Premark RWP Holdings, Inc.
    Inventors: Muyuan M. Ma, Jay T. Oliver
  • Patent number: 5914147
    Abstract: A pressing column for the pressing, for example, of hams in molds is provided with shelves to support the molds. The shelves are mutually connected by links which allow a certain mutual movement between the shelves in the vertical direction. By raising the upper part in the pressing column, the shelves can be pushed in from the side of the column from a platform which is adjustable in height. Hereafter, the upper part can be lowered and the contents of the molds are pressed in a normal manner with a pressing apparatus. After the pressing and the boiling of the hams, the shelves are again separated and the molds are removed.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: June 22, 1999
    Assignee: SKF-Danfotech A/S
    Inventors: Kjeld Elimar, Bjarne Nielsen
  • Patent number: 5843484
    Abstract: There is described a form tool for compression forming a molded body having a circular cylindrical through hole with at least one helical groove from a sintering powder, which form tool has a mantle (1) with an inserted mold core (2), which forms at least one flight (3) protruding against the mantle (1) for forming the groove of the molded body, and a ring-shaped plunger (6) engaging in the mold cavity (5) between the mantle (1) and the mold core (2). To create advantageous constructional conditions, it is proposed that the axial length of the flight (3) of the mold core (2) should correspond to the axial length of the molded body, and that the mold core (2) should have an axial web (4) continuing the flight (3), which axial web engages in an adapted axial groove of the ring-shaped plunger (6).
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: December 1, 1998
    Assignee: Miba Sintermetall Aktien-gesellschaft
    Inventors: Karl Derflinger, Johann Dickinger
  • Patent number: 5807592
    Abstract: The apparatus comprises a rotating carousel provided with pressure-molding units for items made of plastics. Each unit comprises a mold having a molding cavity into which a dose of plastics is brought by means of a feeding head which is rotatable outside of the carousel, said dose being removed from an extrusion device by means of removal elements which are rigidly coupled to the head.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: September 15, 1998
    Assignee: SACMI Cooperative Meccanici Imola S.c.r.l.
    Inventor: Rodiero Alieri
  • Patent number: 5658608
    Abstract: The invention provides a device for compacting and separating material. The main components of the device are a hollow housing sealable at one end by a removable cap, a cylindrical housing having a threaded exterior for compressing material within the housing movably mounted to the other end of the hollow housing, and a plurality of separating members slidably positioned within the hollow housing. A portion of material is placed within the hollow housing, followed by a separating member, followed by another portion of material, and optionally another separating member. After the material is compressed within the hollow housing, the end is opened and the compressed portions of material are removed from the hollow housing, The compressed portions of material are maintained separated from one another by the separating members, An alignment and guidance system may be employed to maintain separating members in a level manner during operation.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: August 19, 1997
    Inventor: Robert J. Klefbeck
  • Patent number: 5643615
    Abstract: Die presses containing removable dies and arranged in a row for operating successively on a workpiece which traverses such row utilize movable die carts which not only are capable of substituting one set of dies for the dies in the presses, but which also effect transfer of workpieces between successive presses.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: July 1, 1997
    Assignee: Atlas Technologies, Inc.
    Inventor: Michael D. Austin
  • Patent number: 5635219
    Abstract: A slide opening system for a tool system for compacting powdery materials having an upper ram, a lower ram and an insertable tool frame in which punch holders are moved relative to the base-plate from their filling position downward to the pressing position and from the pressing position upward to the ejection position which corresponds to the filling position (ejection method), and a further punch holder is moved from the filling position downward to the pressing position and from the pressing position downward to the withdrawal position (withdrawal method), with plungers acting on slides for releasing the withdrawal plate for the withdrawal motion, whereby the plungers of the slide opening system each act on a preferably stepped slide via a pivoted lever in the form of a cam disk with leverage that changes during the opening process and at least one roll located on the lever.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: June 3, 1997
    Assignee: Dorst-Maschinen- und Anlagenbau Otto Dorst und Dipl.-Ing. Walter Schlegel GmbH & Co.
    Inventors: Josef Schrofele, Roland Fleissner
  • Patent number: 5589043
    Abstract: A two-part reusable mask to protect objects to be plated. The mask can be used for painting, chemical treatment or other treatments. By adjusting the shape of the mask, any object can be plated. In the case of coins or medallions, a two sided mask is formed. For use with coins, the coin is laid on a piece of glass. A dam is formed around the coin. A quantity of ultraviolet-sensitive liquid polymer is poured on and around the coin. The dam is covered with another piece of glass and the mold is clamped and cured. The mold is removed and an exact copy of the coin is left in the rubber. The rubber mask is then placed on a hard surface and the areas to be plated are cut out. After the mask is cut out, it is placed back over the coin and aligned. A piece of clear, hard plastic is bonded to the rubber using a clear adhesive. After the glue is cured, the plastic is cut out to match the corresponding pattern cut in the rubber. The mask is then ready to use.
    Type: Grant
    Filed: October 31, 1995
    Date of Patent: December 31, 1996
    Inventor: James P. Edwards
  • Patent number: 5580412
    Abstract: A method and an apparatus for the production of a three-dimensional textile (3), wherein the textile (3) is formed from two sheets of textile (5, 6) placed face to face and connected together by a plurality of threads (10), impregnated with resin and inserted between two layers (16, 17) so as to form a layered structure (1). This layered structure (1) is inserted between two dies (25, 26) of a heated press which is subsequently closed to allow the resin impregnating the structure to distribute itself uniformly. The layers (16, 17) are then attached by vacuum to the faces of the dies (25, 26) which are then opened through a first controlled distance within the limit of the elastic recovery of the three-dimensional textile (3). The outermost layers of the structure (1) are then polymerized by heating the dies (24, 26) while the resin impregnating the threads (10) remains in a plastic state.
    Type: Grant
    Filed: July 27, 1995
    Date of Patent: December 3, 1996
    Assignee: Metalleido S.R.L.
    Inventor: Marco Fantino
  • Patent number: 5560939
    Abstract: A mold assembly having at least one mold body with at least one cavity formed therein. The mold includes at least one mold insert coupling portion formed on the mold body; at least one mold insert being of substantially complementary size and shape with respect to the mold insert coupling portion, each insert being provided with a tapered guide surface for guiding the mold insert into the mold insert coupling portion; at least one means for clamping the mold insert in a predetermined position within the mold insert coupling portion. The mold insert is reciprocally movable within the mold insert coupling portion in a direction generally perpendicular to the parting line of the mold assembly.
    Type: Grant
    Filed: March 13, 1991
    Date of Patent: October 1, 1996
    Assignees: Aida Engineering, Ltd., Hoya Corporation
    Inventors: Tatsuzi Nakagawa, Tatsuo Nishimoto
  • Patent number: 5498147
    Abstract: A powder molding press a die plate provided with a die having a die hole, a punch device to be inserted into the die hole and a hydraulic cylinder device attached to the punch device for driving the same, the hydraulic cylinder device being arranged coaxially with the punch device. A movable punch plate may be disposed on one side of the die plate in parallel thereto with a predetermined space and a punch adapter for securing the punch device to the punch plate may be also disposed. The punch device includes a plurality of punches disposed axially in series.
    Type: Grant
    Filed: June 29, 1994
    Date of Patent: March 12, 1996
    Assignee: Yoshizuka Seiki Co., Ltd.
    Inventors: Takeshi Katagiri, Masao Yamamoto, Tukasa Tajima, Siro Shirasaki
  • Patent number: 5482453
    Abstract: Disclosed is a utensil for molding sushi rice for use in preparing nigiri-zushi, the molding utensil having a split mold having a mold member, and an outer frame for the split mold to removably fit in, the molding utensil being characterized in that the utensil is provided with a pair of vertically split side mold members forwardly movable toward each other within the outer frame, each of the side mold members is provided on each of their opposite end walls with one of pairing elements provided by an angular cam and a pin for advancing the side mold member by about 5 mm, the other pairing element is provided on a wall of the upper mold member to be opposed to the end wall, the outer frame has such a depth that molding cavities having their contours defined by the lower mold member inserted into the outer frame to its bottom, the upper mold member pushed into the outer frame and fitted to the inserted lower mold member and the side mold members in a forwardly moved position within the outer frame have a combin
    Type: Grant
    Filed: October 18, 1993
    Date of Patent: January 9, 1996
    Assignee: Kabushiki Kaisha Sushitaro
    Inventor: Yoshio Shimizu
  • Patent number: 5413472
    Abstract: A molding device to make molded items from molding compound is provided. The device includes a first mold insert which corresponds to a first portion of a molded item and a first mold insert holder removably holds the first mold insert. A second mold insert is provided which corresponds to a second portion of the molded item and a second mold insert holder is provided which removably holds the second mold insert. The first and second insert holders are connected at one end by a living hinge and a handle extends from the opposite of the first and second holders. In a preferred embodiment, a twist lock is provided for securing the inserts to the insert holders.
    Type: Grant
    Filed: November 3, 1992
    Date of Patent: May 9, 1995
    Assignee: Binney & Smith, Inc.
    Inventors: Charles W. Dietterich, Richard A. Tarozzi
  • Patent number: 5393479
    Abstract: A method for shaping a trim cover fabric for the entire front surface of a vehicle seat back portion or the entire top surface of a vehicle seat cushion portion, includes providing a forming tool having a forming surface with a portion complementary to a basic shape to be provided for the seat surface and a portion defining a cavity; providing a plurality of style line inserts, different ones of the style line inserts having different styling surfaces that are complementary to different desired stylized shapes to be provided for the seat surface; selecting one of the style line inserts and inserting the selected style line insert into the cavity; positioning the trim cover fabric on the forming tool assembly; providing a pressing tool having a surface formed to be complementary to the forming surface of the forming tool and the styling surfaces of the plurality of style line inserts to enable the pressing tool to be used with a forming tool assembly that includes any of the style line inserts; and pressing th
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: February 28, 1995
    Assignee: Hoover Universal, Inc.
    Inventor: Phillip H. Nadeau
  • Patent number: 5362434
    Abstract: A vertical press, which has replaceable mold components, has lifting devices for lifting and conveying these parts. The lifting and conveying devices are mounted on a movable topmost mold carrier element of the press, so that the drive and control devices of this mold carrier element (4), which are provided for the pressing process, can be utilized simultaneously for the vertical movement of the lifting and conveying devices. By a programmed control, the necessary movements to shape-specific intermediate positions and coupling and decoupling processes to be performed at these positions are programmed for a series of shapes and can be performed automatically.
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: November 8, 1994
    Assignee: Laeis- Bucher GmbH
    Inventors: Hans U. Hauser, Jorg Lindemans, Martin Mick
  • Patent number: 5326242
    Abstract: A powder molding press includes a die plate provided with a die having a die hole, a punch device to be inserted into the die hole and a hydraulic cylinder device attached to the punch device for driving the same, the hydraulic cylinder device being arranged coaxially with the punch device. A movable punch plate may be disposed on one side of the die plate in parallel thereto with a predetermined space and a punch adapter for securing the punch device to the punch plate may be also disposed. The punch device includes a plurality of punches disposed axially in series.
    Type: Grant
    Filed: August 9, 1991
    Date of Patent: July 5, 1994
    Assignee: Yoshizuka Seiki Co., Ltd.
    Inventors: Takeshi Katagiri, Masao Yamamoto, Tukasa Tajima, Siro Shirasaki
  • Patent number: 5277570
    Abstract: An apparatus and method is disclosed for an improved press for pressing a compressible material such as a deformable plastic material with a fluid under pressure from a fluid pressure source. The press incorporates a press cylinder having a press cylinder bore for removably receiving a sleeve defining a sleeve bore. The sleeve bore is adapted to receive the compressible material between a first and a second forming tool. The fluid from the pressure source is applied to the first and second forming tools to press the compressible material therebetween.
    Type: Grant
    Filed: March 30, 1992
    Date of Patent: January 11, 1994
    Inventor: David L. Siggers
  • Patent number: 5275056
    Abstract: A gyratory shear material compacting device in which a material sample is placed within a cylindrical mold having a wobble plate. The material sample is compressed by a piston while the mold is simultaneously gyrated. Gyration is achieved by tilting the mold and holding the wobble plate within rollers which revolve around the mold, controlling the selected angle of tilt while imparting oscillatory gyration. The selected angle of tilt of the mold may be precisely controlled at all times, preventing the mold from riding up on the sample, or from coming into contact with the base of the device. The mold is free to advance rotationally. The device is capable of measuring and recording the height of the sample, angle of gyration, and moment of gyration.
    Type: Grant
    Filed: October 20, 1992
    Date of Patent: January 4, 1994
    Assignee: Rainhart Co.
    Inventors: Edward R. Hamilton, Raymond D. Alexander, Lawrence E. Hart
  • Patent number: 5259742
    Abstract: In a mold clamping device for clamping a mold to, and unclamping the mold from, a mold mounting member of a tire vulcanizing machine, a locking member has a neck section projectingly installed on the mounting surface of a mold. A guide hole of the mold mounting member, in which the locking member is inserted, has a larger-diameter section in a portion corresponding to the neck section. A chuck member has an expansion section which is slidably inserted in the guide hole, and expands in the larger-diameter section, engaging the neck section in the guide hole. A chuck withdrawing device withdraws the chuck member into the guide hole.
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: November 9, 1993
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Katsumi Ichikawa, Keiji Ozaki, Akihiko Masagaki
  • Patent number: 5260017
    Abstract: A method for making improved surface profile composite structures containing crystalline thermoplastic materials involves employing individual glass filaments and molding with a hot mold insert. The method provides composites having smooth surfaces suitable for automotive applications.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: November 9, 1993
    Assignee: General Electric Company
    Inventor: Harold F. Giles, Jr.
  • Patent number: 5244375
    Abstract: A press plate hardened by the use of plasma ion nitriding techniques produces wear resistant decorative laminate containing hard abrasive particles while improving associated press plate useful life. The press plate has exacting final microfinish requirements made possible due to the determination of interdependencies between parameter settings and expected results. These interdependencies include the work piece geometry, surface and subsurface structure and desired results, process temperatures, pressures, and rate of heat-up and duration of heat-up time, thermal loading, reflective radiation and heat effects, cooling systems, and gas mixture composition.
    Type: Grant
    Filed: December 19, 1991
    Date of Patent: September 14, 1993
    Assignee: Formica Technology, Inc.
    Inventors: Kenneth J. Laurence, Wolfgang Kieferle
  • Patent number: 5234633
    Abstract: There is provided a cast molding die for an information recording medium, having a mold surface with a prescribed unevenness pattern including a projection; wherein the projection has at least one pair of opposite side slopes each of which forms an acute angle with respect to the extension of the mold surface. By using the cast molding die having the above-mentioned projection with a three-dimensional shape, a defect such as lack in the resultant information recording medium is prevented.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: August 10, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Imataki, Tetsuya Satoh, Mizuho Hiraoka, Tomoyuki Tamura
  • Patent number: 5217655
    Abstract: A process for preparing a composite product from an intake material incorporating commercial, municipal or industrial waste containing organic, plastic and fibrous material includes first granulating and sizing the material. The material is then heated in three consecutive phases, first at a temperature sufficient to achieve an internal temperature within the material of about 215.degree. to 250.degree. F., then at a temperature sufficient to achieve an internal temperature within the material of about 250.degree. to 320.degree. F. and then at a temperature sufficient to achieve an internal temperature within the material of about 320.degree. to 400.degree. F., wherein said material is continuously mixed during said heat phases. The material may then be co-extruded with a reinforcement structure and forced into vacuum profile dies to form a product or compression molded to form a product and cooled.
    Type: Grant
    Filed: July 9, 1991
    Date of Patent: June 8, 1993
    Assignee: Envirotrust Technologies Inc.
    Inventor: Erick Schmidt