Treatment Of Material By Vibrating, Jarring, Or Agitating During Shaping Patents (Class 264/69)
  • Publication number: 20040217505
    Abstract: The invention provides a simple, energy efficient and direct method of producing synthetic lightweight aggregate, in spheroidal, other regular shapes or even in crushed form, in a wide range of defined sizes and target densities by preparing appropriately batched and mixed slurry mixes of cement, sand, waste materials like fly ash and/or stone dust, additives, water and preformed stable foam, transferring and then casting the slurry mix under ambient conditions, into desired sized aggregate in uniquely invented battery moulds having multiple interconnected cells, where allowing the casting to harden under ambient conditions for some time and then demoulding provides the desired quality aggregate granules.
    Type: Application
    Filed: April 30, 2003
    Publication date: November 4, 2004
    Inventor: Gurbaksh Singh
  • Patent number: 6802998
    Abstract: A method of molding an elastomeric article comprises: putting an elastomeric article in a mold; softening the elastomeric article in the mold by heating the elastomeric article; pressing the elastomeric article against the mold by pressurizing an inside of the elastomeric article by letting a fluid therein; and changing the pressure of said fluid in a short cycle so as to beat the elastomeric article against the mold repeatedly.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: October 12, 2004
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Ryo Ono
  • Patent number: 6780369
    Abstract: A method of finishing concrete using a vibrating tool to consolidate a “dry shake” aggregate into the upper layer of the concrete. The use of the vibrating tool causes moisture within the concrete mass to migrate into the surface layer where the moisture may hydrate the aggregates in the dry shake mixture. The ability to cause upward migration of water in the concrete mass provides a larger window of finishability for the concrete. The vibrations also provide thorough consolidation of aggregates in the upper layer of the concrete mass helping to prevent delamination.
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: August 24, 2004
    Assignee: Face International Corp.
    Inventors: Darrell Darrow, Glenn F. Rogers, Jr., Samuel A. Face, Jr., David Francis, Michael Davis, Yuting Wang
  • Patent number: 6773641
    Abstract: The method of producing slabs made of granulated stone and/or sand bound with a hardenable resin by compaction under vacuum and subsequent hardening in which before the vibratory compaction the mixture is spread to a uniform thickness on a support, the support being protected by highly resilient sheet material. A lower sheet material has a shaped configuration comprising a flat base and a peripheral frame projecting from the flat base for a predetermined height so as to define a seat of dimension corresponding in plan to those of the slab to be produced. The peripheral frame having a height which is lower by a predetermined amount than that of the final slab produced.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: August 10, 2004
    Inventor: Luca Toncelli
  • Patent number: 6764637
    Abstract: In a method of joining a solidifiable liquid polymeric material to a solid material to produce a solid article, the solid material is contacted with the liquid polymeric material at an interface. Ultrasonic energy is applied so that the energy reaches the interface between the contacting solid material and liquid polymeric material. A joint is formed at the interface by allowing or causing the liquid polymeric material to solidify, to produce a solid article comprising the solidified polymeric material joined to the solid material.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: July 20, 2004
    Assignee: Battelle Memorial Institute
    Inventors: Lynn L. Faulkner, Richard P. Heggs, Douglas B. Pape, Michael D. Schulte, Micah M. Kattner
  • Publication number: 20040135281
    Abstract: An apparatus and method for shaping at least a portion of a medical balloon comprise a balloon shaping device capable of applying a radial inward force to at least a portion of the medical balloon and at least one vibratory device capable of applying vibratory energy to the at least a portion of the medical balloon.
    Type: Application
    Filed: January 10, 2003
    Publication date: July 15, 2004
    Inventor: Thomas C. Eidenschink
  • Publication number: 20040119186
    Abstract: A method for recycling and reusing corrugated paper comprising the steps of: pulverizing the waste corrugated paper into a plurality of scraps; adding viscose to mix with the scraps; agitating viscose and the scraps so that a surface of each scrap is stuck with a thin layer of viscose; filling the scraps with viscose into a model; compressing the scraps for solidifying the scraps so as to form a shaped product; and drying the shaped product. The size of the corrugated paper is less than 10 cm. The viscose is water-solvable viscose. The compressing pressure is larger than 15 tons. In agitating step, recycling short fiber for waste paper can be added.
    Type: Application
    Filed: December 19, 2002
    Publication date: June 24, 2004
    Inventor: Shih-Hui Lee
  • Patent number: 6743386
    Abstract: A vibratory apparatus and method for agglomerating chopped bundles of wet fiberglass strands into uniform segments includes a container having a curved inner surface disposed about a generally horizontal axis where the container is mounted on a plurality of springs. The chopped bundles of wet fiberglass strands to be agglomerated are placed onto the curved inner surface at an input end of the container. A vibratory force is produced to cause the chopped bundles of wet fiberglass strands to be moved from the input end toward an output end of the container. The vibratory force causes the chopped bundles of wet fiberglass strands to be directed in a rising and falling path of rolling movement within the container. As a result of the rolling movement of the chopped bundles within the container which is produced by the vibratory force, the chopped bundles of wet fiberglass strands are converted into uniform segments by reason of agglomeration of the wet fiberglass strands.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: June 1, 2004
    Assignee: General Kinematics Corporation
    Inventor: Daniel T. Lease
  • Patent number: 6743382
    Abstract: A method of installing a refractory lining in a coreless or channel electric induction furnace. For installation of a refractory lining in a furnace wall, the method comprises the steps of providing a dry refractory material between a liner form placed within the furnace and a furnace wall, placing at least one variable frequency/amplitude electric vibrator in operational communication with an element selected from a structural member of the furnace, the liner form, and a vibrator rig placed within the furnace, inducing flow of the dry refractory material by operating at least one variable frequency/amplitude vibrator in a first operational mode having a high amplitude, low frequency vibration, and compacting the dry refractory material by operating at least one variable frequency/amplitude vibrator in a second operational mode having low amplitude, high frequency vibration after inducing flow of the dry refractory material.
    Type: Grant
    Filed: July 18, 2001
    Date of Patent: June 1, 2004
    Assignee: Allied Mineral Products, Inc.
    Inventors: William M. Opatt, Douglas K. Doza
  • Publication number: 20040094872
    Abstract: The invention relates to a method and an installation for processing thermoplastic synthetic materials. According to the invention, the melt strands or the like are displaced in oscillation or pulsation in order to indent or penetrate the joint lines between at least two injection strands.
    Type: Application
    Filed: April 23, 2003
    Publication date: May 20, 2004
    Inventors: Gerhard Edler, Hans-Joachim Keim
  • Publication number: 20040089966
    Abstract: A new system and method for making agglomerates of chopped glass fiber strand segments is disclosed as are the agglomerates produced. The agglomerates, made by feeding wet chopped fiber strand segments into a wave chamber having a vibrating curved surface that produces a wave-like flow pattern in the segments and agglomerates, have a substantially higher bulk density and greatly improved flow characteristics than conventional chopped strand reinforcements. The wet agglomerates are usually dried in any conventional dryer.
    Type: Application
    Filed: November 8, 2002
    Publication date: May 13, 2004
    Inventors: Richard K. Kindle, John A. Cooper
  • Patent number: 6726862
    Abstract: The present invention relates to the step of plasticizing a thermoplastic resin material by rotatably driving a screw (20). Also included in the method is the step of injecting an inert gas into a screw cylinder (1) to permeate the melted resin and injecting the melted resin into a mold by driving the screw (20) in the direction of injection. Here, the inert gas has a pressure, at least in pressure, equal to or greater than a supercritical pressure or is under a supercritical state. To provide a thermoplastic resin foam by the method, electric servomotors (31, 32) are employed to drive the screw (20). After the step of plasticizing the resin material has been completed, brakes are applied to the electric servomotors (31, 32) to prevent the screw (20) from retreating. Alternatively, even after the step of plasticizing the resin material has been completed, the screw (20) is driven at low speeds in the direction of plasticization until immediately before the step of injecting the melted resin is initiated.
    Type: Grant
    Filed: March 8, 2001
    Date of Patent: April 27, 2004
    Assignee: The Japan Steel Works, Ltd.
    Inventors: Atsuo Teraoka, Fumiaki Tsuda, Hideo Ohyabu
  • Publication number: 20040051197
    Abstract: Apparatus and method for carrying out compaction operations on molded bodies that consist of granular materials and are placed on pallets, the compaction being achieved by impact of a vibrating table on the underside of the pallet. The vibrating table, together with a spring system forms a mass-spring system, which acts as a vibrator capable of oscillation that is excited by an excitation device to produce forced vibrations. The spring system, together with the system mass, is designed to develop at least one individual frequency within the range of the compaction frequency, whereby it is also possible to adjust the individual frequency gradually or continuously. This, together with the fact that the excitation frequency can be adjusted, allows the vibrator to be operated partially or completely in resonance mode over the whole frequency range of the compaction.
    Type: Application
    Filed: October 29, 2003
    Publication date: March 18, 2004
    Inventor: Hubert Bald
  • Publication number: 20040028840
    Abstract: The present invention provides a producing technique of round polished concrete aggregate in which water-absorption characteristics are suppressed as low as possible while rounding an outer shape of the round polished concrete aggregate, and when the round polished concrete aggregate is used as concrete aggregate, a percentage of absolute volume can be enhanced and a unit water volume can be reduced.
    Type: Application
    Filed: August 25, 2003
    Publication date: February 12, 2004
    Inventor: Hiromi Yamamoto
  • Publication number: 20030209837
    Abstract: A method for underfilling and encapsulating flip-chip configured semiconductor devices mounted on a carrier substrate using stereolithography (STL) to form, in situ, at least semisolid dam structures of photopolymeric material about the devices to entrap liquid, unpolymerized resin between the devices and substrate. Prior to the STL process, the carrier substrate and mounted devices are immersed in the liquid polymeric resin, optionally with vibratory energy, to purge contaminants from between the device and substrate, and to fill spaces between the semiconductor devices and carrier substrate with the liquid resin.
    Type: Application
    Filed: April 11, 2003
    Publication date: November 13, 2003
    Inventor: Warren M. Farnworth
  • Publication number: 20030201561
    Abstract: An apparatus and related method for forming a three dimensional polymer based part including a die tool having a specified shape and size and exhibiting an exposed polymer adhering surface corresponding in configuration to a polymeric based part to be created. A bin is filled with a polymer material in particulate form and, upon positioning the die tool overhead, the die tool is inserted into the bin, such as by either lowering the tool or raising the bin. The tool is positioned within the bin such that the exposed and adhering surface is in contact with the particulate material. Heat is applied to either or both the die tool and the bin particulate and, in combination with an optional vibrating motion imparted to the bin, causes a specified volume of polymer material to adhere and to form upon the exposed surface of the die tool.
    Type: Application
    Filed: April 15, 2003
    Publication date: October 30, 2003
    Inventor: Miguel A. Linares
  • Publication number: 20030193105
    Abstract: An molding apparatus useful for molding polymer compositions includes a substrate; a first insulating layer having an electrical resistivity of at least about 1010 ohm-centimeters and thermal conductivity of about 0.2 to about 5 watts/(meter-kelvin); a heating element; a second insulating layer having an electrical resistivity of at least about 1010 ohm-centimeters and a thermal conductivity of at least about 5 watts/(meter-kelvin); and a first molding layer having a specific heat capacity of about 100 to about 2,500 joules/(kilogram-kelvin), and optionally, a second molding layer. The apparatus provides rapid heating and cooling of the mold surface. The apparatus may be employed for rapidly molding articles having desirable surface characteristics.
    Type: Application
    Filed: February 13, 2003
    Publication date: October 16, 2003
    Applicant: General Electric Company
    Inventors: Iain Montgomery, Peter James Zuber
  • Publication number: 20030160347
    Abstract: A concrete product molding machine supports a vibratable mold having an open top and an open bottom. A stripper head is movable from a position above the mold to an intermediate position ready to strip the molded product from the mold and then on to a lower position in which it has. A pallet receiver is movable from a lower position to a mold closing position in which a pallet it carries closes the bottom of the mold. Disengageable linking mechanism is provided for coupling the striper head and pallet receiver frame for conjoint travel in movement of the stripper head through the mold. A connector assembly connects with a pallet receiver lift arm and incorporates an actuator for varying the position of the upper end of the lift arm and thereby varying the vertical position of the pallet receiver.
    Type: Application
    Filed: March 24, 2003
    Publication date: August 28, 2003
    Inventors: Samuel L. Saddler, Kurt H. Korpela, William F. Wallis, Arnold G. Gengerke, Rodney D. Lang
  • Patent number: 6592799
    Abstract: Cure and consolidation of a viscous thermoplastic resin, especially one that softens and melts at a high temperature, is improved by assisting autoclave pressurized momentum transport for compaction of the composite using high frequency, low amplitude acoustic vibration within the resin. The vibration induces shear thinning in the resin which promotes resin flow, achieves filling or collapse of voids, and assists consolidation of the composite preform.
    Type: Grant
    Filed: December 9, 1996
    Date of Patent: July 15, 2003
    Assignee: The Boeing Company
    Inventors: Stephen Christensen, Eric J. Stober
  • Publication number: 20030127765
    Abstract: A molding process and apparatus are disclosed herewith including extruding a polymer from at least one nozzle into a mold cavity, and displacing at least one of the nozzle and the mold cavity during the step of extruding to deposit at least a portion of a layer of polymer into the mold cavity, and subsequently enclosing the mold cavity with a mating mold section to produce a molded part.
    Type: Application
    Filed: August 15, 2002
    Publication date: July 10, 2003
    Inventors: Richard A. Weiland, Sing-Lit Jim, Roger Wang
  • Publication number: 20030111753
    Abstract: The invention relates to the of poured concrete and the need to avoid air pockets and voids within the setting slurry. At least one reinforcing rod, and preferably a grid of rods, is embedded in the poured concrete. The setting slurry is vibrated by vibrating the rod or grid. A vibrator receives the protruding end of the rod and is vibrated to vibrate the rod.
    Type: Application
    Filed: December 13, 2001
    Publication date: June 19, 2003
    Applicant: OZTEC INDUSTRIES INC.
    Inventors: Fred Oswald, Robert Rhodes
  • Patent number: 6558593
    Abstract: In a method for pressing ceramic powders comprising a powder compaction stage within a mold, after exerting the powder compacting pressure the powder is subjected to close-together pressure pulses while maintaining the compacting pressure applied.
    Type: Grant
    Filed: September 4, 2001
    Date of Patent: May 6, 2003
    Assignee: Sacmi - Cooperativa Meccanici Imola - Soc. Coop. A.R.L.
    Inventor: Giuseppe Cassani
  • Publication number: 20030015812
    Abstract: A method of installing a refractory lining in a coreless or channel electric induction furnace. For installation of a refractory lining in a furnace wall, the method comprises the steps of providing a dry refractory material between a liner form placed within the furnace and a furnace wall, placing at least one variable frequency/amplitude electric vibrator in operational communication with an element selected from a structural member of the furnace, the liner form, and a vibrator rig placed within the furnace, inducing flow of the dry refractory material by operating at least one variable frequency/amplitude vibrator in a first operational mode having a high amplitude, low frequency vibration, and compacting the dry refractory material by operating at least one variable frequency/amplitude vibrator in a second operational mode having low amplitude, high frequency vibration after inducing flow of the dry refractory material.
    Type: Application
    Filed: July 18, 2001
    Publication date: January 23, 2003
    Inventors: William M. Opatt, Douglas K. Doza
  • Publication number: 20020135091
    Abstract: A female mold for plastic sanitaryware manufacture has an open top to promote improved air escape from the mold as resinous backing resin fills the mold in order to reduce the number of gas inclusions within the backing material after it is cured. The female mold also provides thermal insulation for the curing backing material to permit better curing and to reduce the potential for delamination in the finished product. A production fixture is equipped with a gas impermeable lid for selective contact with the female mold, after the air has been expelled from the mold, in order to control undesirable styrene emissions.
    Type: Application
    Filed: January 22, 2001
    Publication date: September 26, 2002
    Inventors: Hiram Rivera, Dan Spiecher
  • Patent number: 6444150
    Abstract: A method for packing a stationary phase into a small diameter fluid passageway or flow channel. Capillary action is employed to distribute a stationary phase uniformly along both the length and diameter of the flow channel. The method disclosed here: 1) eliminates the need for high pressure pumps and fittings and the safety hazards associated therewith; 2) allows the use of readily available commercial microparticles, either coated or uncoated, as the stationary phase; 3) provides for different types of particles, different particle sizes, and different particle size distributions to be packed in sequence, or simultaneously; 4) eliminates the need for plugging the flow channel prior to adding the stationary phase to retain the packing particles; and 5) many capillaries can be filled simultaneously.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: September 3, 2002
    Assignee: Sandia Corporation
    Inventor: Don W. Arnold
  • Publication number: 20020105107
    Abstract: A portable single station apparatus is provided including a structure for receiving a quantity of soil to be compressed into a building block, an enclosed system which provides a linear process for receiving soil, compressing soil and ejecting a formed compressed soil building block from the apparatus. The apparatus is comprised of a stationary chamber equipped with an internal adjustable cavity in which the desired block is to be formed. A pair of opposing pressure heads capable of moving toward and away from each other in unison or independently to receive soil, compress soil, and eject the desired soil building block.
    Type: Application
    Filed: August 22, 2001
    Publication date: August 8, 2002
    Inventor: Steve Everett
  • Patent number: 6416705
    Abstract: A method and apparatus for devulcanizing cured or cross-linked elastomers. The method includes subdividing elastomeric raw material into small particle form, confining the particles of elastomer under high force, as in a screw extruder or the like and, as the particles remain confined, imparting ultrasonic energy to the mass to effect devulcanization. Energy is fed to the confined particles transversely of the axis along which they are advancing, and energy from a source is reflected off a portion of the apparatus and back into the treatment zone so as to achieve maximum energy utilization. In particular instances, reflection of energy is achieved by providing opposed, powered ultrasonic horns that resonate in phase with each other. In another embodiment, oppositely directed, resonantly tuned horns are used, with less than all such horns being powered and the remainder being passive or unpowered reflecting horns who resonant frequency is tuned to that of the powered horn.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: July 9, 2002
    Assignee: SKF USA, Inc.
    Inventors: Boris Dinzburg, Alexander Berdichevsky
  • Publication number: 20020030298
    Abstract: In a method for pressing ceramic powders comprising a powder compaction stage within a mold, after exerting the powder compacting pressure the powder is subjected to close-together pressure pulses while maintaining the compacting pressure applied.
    Type: Application
    Filed: September 4, 2001
    Publication date: March 14, 2002
    Applicant: SACMI-COOPERATIVE MECCANICI IMOLA-SOC. COOP. A R.L .
    Inventor: Giuseppe Cassani
  • Patent number: 6344159
    Abstract: A method and apparatus for extruding pitch based foam is disclosed. The method includes the steps of: forming a viscous pitch foam; passing the precursor through an extrusion tube; and subjecting the precursor in said extrusion tube to a temperature gradient which varies along the length of the extrusion tube to form an extruded carbon foam. The apparatus includes an extrusion tube having a passageway communicatively connected to a chamber in which a viscous pitch foam formed in the chamber paring through the extrusion tube, and a heating mechanism in thermal communication with the tube for heating the viscous pitch foam along the length of the tube in accordance with a predetermined temperature gradient.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: February 5, 2002
    Assignee: UT-Battelle, LLC
    Inventor: James W. Klett
  • Patent number: 6337039
    Abstract: A method for molding a thermoplastic resin by filling a molten thermoplastic resin into a mold which comprises carrying out the molding of the resin while reducing the solidification temperature of the resin surface which contacts with the mold during the step of filling the resin. According to this molding method, the state of the mold surface can be faithfully transferred to molded articles.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: January 8, 2002
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Hiroshi Yamaki, Yoshimasa Matsuura, Hiroshi Kataoka
  • Publication number: 20010054782
    Abstract: A method of molding an elastomeric article comprises: putting an elastomeric article in a mold; softening the elastomeric article in the mold by heating the elastomeric article; pressing the elastomeric article against the mold by pressurizing an inside of the elastomeric article by letting a fluid therein; and changing the pressure of said fluid in a short cycle so as to beat the elastomeric article against the mold repeatedly.
    Type: Application
    Filed: May 11, 2001
    Publication date: December 27, 2001
    Inventor: Ryo Ono
  • Patent number: 6332992
    Abstract: A process for coating an upper surface of a panel with a mesh reinforced coating includes the steps of: placing a cementitious mixture in a container having a measured slit in the bottom thereof; passing a length of mesh through the container to produce a cementitious laden mesh; moving said panel and container with respect to each other while laying said cementitious laden mesh onto the upper surface of the panel; and cutting off the mesh to provide a coated panel. The coated panel may be subjected to vibration to smooth the upper surface thereof.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: December 25, 2001
    Inventor: Paul J. Chatelain
  • Patent number: 6328917
    Abstract: A thermosetting resin and filler composition that can be cured in a variety of shapes and dimensions to make a variety of tools is described. One example of a tool that can made is a vacuum-casting mold. One embodiment first involves forming a tool composition comprising (a) from about 65 to about 75 weight percent filler, the filler being selected from the group consisting of Group II metal carbonates, such as calcium carbonate and magnesium carbonate, alumina, silica, ceramic materials, glass, nut shells, fiberglass, dolomite, and mixtures thereof, (b) from about 25 to about 35 weight percent of a thermosetting resin, and (c) a catalyst for catalyzing the formation of the thermoset resin. Once formed, the tool composition is applied to a plug shaped so that the desired tool is formed by curing the composition on, around and/or in the plug. The composition is allowed to cure to form the tool, and the tool is then separated from the plug.
    Type: Grant
    Filed: January 26, 1999
    Date of Patent: December 11, 2001
    Assignee: Thermoset Molds, L.L.C.
    Inventor: Marvin Eugene Poulson
  • Patent number: 6325612
    Abstract: A vibration applying apparatus associated with an injection molding machine for applying vibrational repetitive movements to a melt of molding materials includes a rod having a tip end received inside a heating cylinder and disposed in the proximity of a nozzle of the heating cylinder, a stationary guide supporting the rod such that the rod is movable back and forth, a rotating shaft being orthogonal to the rod, a drive motor for rotating the rotating shaft, and a cam mechanism acting between the rotating shaft and the rod so as to convert rotary motion of the rotating shaft into linear reciprocal motion of the rod. With the apparatus thus arranged, the tip end of the reciprocating rod applies vibrational repetitive movements to the melt of molding material, thereby lower the viscosity of melt. The frequency of vibrational repetitive movements can be varied by changing the rotational speed of the drive motor.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: December 4, 2001
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Nobuyuki Nakamura, Koichi Matsubayashi, Kazuyuki Okubo
  • Patent number: 6322735
    Abstract: A method for molding a thermoplastic resin by filling a molten thermoplastic resin into a mold which comprises carrying out the molding of the resin while reducing the solidification temperature of the resin surface which contacts with the mold during the step of filling the resin. According to this molding method, the state of the mold surface can be faithfully transferred to molded articles.
    Type: Grant
    Filed: September 3, 1997
    Date of Patent: November 27, 2001
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Yamaki, Yoshimasa Matsuura, Hiroshi Kataoka
  • Patent number: 6280664
    Abstract: A method for forming a lining on the internal faces of a vessel involves installing a granular composition into a gap formed between the internal faces of the vessel and a mandrel. The granular composition is dropped into the gap in the form of a single mass.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: August 28, 2001
    Assignee: Specialty Minerals ( Michigan) Inc.
    Inventor: Mark David Kotyuk
  • Patent number: 6270714
    Abstract: Method for potting or casting hollow fiber bundles and form a tube sheet as part of fabricating a gas separation membrane module. A hollow fiber bundle is placed in a mold, into which a resin filled with solids injected, and the resin is exposed in a liquid bath in which the mold is immersed, to an ultrasonic field while it is so injected. The solids may be chosen among metals, metal oxides, silica, quartz, ceramics and inorganic salts.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: August 7, 2001
    Assignee: Carbon Membranes Ltd.
    Inventors: Avraham Azran, Gil Dagan
  • Patent number: 6261492
    Abstract: The essence of the method resides in that a recess (2) is made in the mounting surface, having the dimensions exceeding those of a chip (3). The chip (3) is gripped with a gripping member appearing as a tool (4) having a flat end and a capillary hole (5) flaring up towards the tool end, and is oriented above the recess (2). Before pressing the chip (3) into the recess (2) a dosed amount of a binder (6) is placed therein. The chip (3) is pressed into the binder (6) until the part of the flat end of the tool (4) which extends beyond the outlines of the chip (3) thrusts against the mounting surface. The pressing-in procedure is stopped as soon as the face surface of the chip (3) is coincided with the surface on which the recess (2) is made, whereupon the gripping tool is disengaged.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: July 17, 2001
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Viktor Anatolievich Iovdalsky
  • Patent number: 6203747
    Abstract: An injection molding machine includes an injection molding cylinder with a material supply at one end and an injection nozzle at the other end and a material conveyance unit attached to a drive and movable in the injection molding cylinder. The injection molding machine also includes a vibration element for inducing a flow of melt within the injection molding cylinder for homogenizing the melt.
    Type: Grant
    Filed: January 20, 1999
    Date of Patent: March 20, 2001
    Assignee: Mannesmann AG
    Inventor: Otto Grunitz
  • Patent number: 6190601
    Abstract: A method for controlling a screw injecting apparatus having a heating cylinder and a screw slidably and rotatably received in the heating cylinder and designed to carry out a plasticizing-metering phase in which a predetermined amount of a molten material is accumulated forwardly of the screw by plasticizing and kneading a raw molding material via the screw and the heating cylinder, a waiting phase in which the screw is held inactive for a period between completion of the metering and subsequent injection of the molten material, and an injecting phase in which the molten material is injected. The method comprises the step of causing the apparatus to vibrate the molten material at a predetermined low frequency axially of the screw during the plasticizing-metering phase. By vibrating the molten material at a low frequency during the relatively long plasticizing-metering phase, the viscosity of the molten material can be reduced.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: February 20, 2001
    Assignee: Nissei Plastic Industrial Co.
    Inventor: Nobuyuki Nakamura
  • Patent number: 6180051
    Abstract: A method for forming shaped fibrous articles. The method involves introducing at least a portion of a fibrous element into a shaping tool and subjecting the fibrous element in the shaping tool to ultrasonic energy. This imparts the shape of the shaping tool to the surface of the fibrous element. The apparatus has a guide-holder to receive and removably retain a fibrous element and an ultrasonic shaping tool which can be applied to the fibrous element. The shaping tool has a recess corresponding to a predetermined shape for the article. Preferably, the shaping tool and guide-holder are reciprocally moveable with respect to one another.
    Type: Grant
    Filed: March 24, 1997
    Date of Patent: January 30, 2001
    Assignee: Johnson & Johnson GmbH
    Inventor: Hans Werner Schoelling
  • Patent number: 6176920
    Abstract: The present invention relates to a cementitious structural panel and its method of manufacture. The method of manufacture involves encapsulating a top and bottom layer of porous reinforcing material with a cementitious mixture by vibration. The structural panel may be coated with a layer of waterproof material.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: January 23, 2001
    Assignee: Smartboard Building Products Inc.
    Inventors: Patrick B. Murphy, George Wypych
  • Patent number: 6159401
    Abstract: A cementitious product has an exposed surface finish which is applied during formation of the product by a pressing process and which simulates the surface and aspect of natural stone provided by secondary processing.
    Type: Grant
    Filed: December 11, 1997
    Date of Patent: December 12, 2000
    Assignee: Entwicklungsgesellschaft Wolfgang Hoesch Gdbr
    Inventor: Wolfgang Hoesch
  • Patent number: 6139778
    Abstract: The present invention is directed to vibrational methods of fabricating electrically conducting polymers and precursors thereof in which the polymer chains are deaggregated. Such deaggregated conducting polymers and precursors thereof exhibit better solution processability and higher electrical conductivity than do the corresponding aggregated polymers. The polymers in the non-doped precursor form or in the conducting form in solution or during the polymerization process are exposed to ultrasound and shear mixing. Due to this treatment, the chains become deaggregated. Furthermore, ultrasound and shear mixing is used during the doping of the precursor polymers. This treatment allows more uniform doping, enhanced solubility, and higher electrical conductivity. The solutions treated with ultrasound/shear mixing are subsequently processed into a structural part, a film, or a fiber.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: October 31, 2000
    Assignee: International Business Machines Corporation
    Inventors: Marie Angelopoulos, Richard Anthony DiPietro, Jane Margaret Shaw
  • Patent number: 6120714
    Abstract: A process for forming a molded article having a multilayer structure which comprises successively injecting melts of at least two materials into the cavity portion of a mold, solidifying a part thereof in the cavity portion to form the multilayer structure, characterized in that as a first step, one of the molten materials is injected into the cavity portion and the portion of the injected molten material contacting with the mold surface is solidified to a predetermined thickness to form a skin layer; as the second step, the next molten materials is fed into the cavity, the unsolidified portion of the molten material previously fed is pushed out of the cavity and a part of the thus fed molten material is cooled and solidified from the surface of the mold to form the next layer; and the procedure of the second step is successively repeated using the remainder of the molten materials alternately, and the molded article produced by the above molding process.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: September 19, 2000
    Assignee: Brunel University of Uxbridge
    Inventors: Peter Stewart Allan, Michael John Bevis, Kazuharu Yasuda
  • Patent number: 6114401
    Abstract: A plastic article or plastic container reclamation process if provided in which plastic containers are divided into relatively large pieces, then washed, agitated and separated using an aqueous solvent to remove residual materials. The residual materials such as motor oil are reclaimed for reuse and the aqueous solvent is regenerated for reuse in the process. Residual materials such as dirt, labels and adhesives from the plastic containers is recovered for recycling or passed to waste for disposal or reuse.
    Type: Grant
    Filed: March 21, 1994
    Date of Patent: September 5, 2000
    Inventor: Billie Odell Doonan
  • Patent number: 6060006
    Abstract: A baluster or spindle is formed by a casting method, and has a rigid, dense, hollow outer shell forming a decoratively shaped body portion having closed, planar opposed ends. A conduit extends completely through the baluster, providing attachment means to a railing system. The hollow interior of the baluster is injected with a high density polyurethane foam to increase its weight, density, and resistance to breakage. The method of forming a baluster or spindle includes the combined method steps of placement of a mesh sheet adjacent each end of the mold, and then subsequent agitation of the mold. Agitation includes simultaneous spinning and rocking of the mold about its longitudinal axis. The mesh sheet retains the casting material against the end surfaces of the mold, and is completely encapsulated by the casting material such that the mesh sheet is not visible on the surface of the finished product.
    Type: Grant
    Filed: February 11, 1999
    Date of Patent: May 9, 2000
    Inventor: Peter Savenok
  • Patent number: 6056535
    Abstract: An injection molding machine comprising a processing pin provided in a fixed mold side is provided. A movable member is arranged in a space between the fixed mold and a fixed plate, the processing pin can be moved forward and backward together with the movable member with rear end portion thereof fixed to the movable member. An end portion of the processing pin is inserted into a mold plate so that it can go in and out of a gate or a cavity by the forward and backward movement of the movable member moved by a drive unit. The above construction can eliminate positional limitation due to a position of a projecting pin in a conventional injection molding machine.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: May 2, 2000
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventor: Junichi Shimizu
  • Patent number: 6015518
    Abstract: The device according to the invention is used for conducting a fluid between a space at least partly bounded by a solid surface through which a fluid can flow and a duct, a high surface continuity of the fluid flow through the surface being achieved with a relatively small differential pressure. The device comprises a coarsely porous shaped part (3), which has on the surface areas through which a flow is to take place a finely porous surface layer (4). The pores of the surface layer (4) are open at the surface and progress continuously into the shaped part (3). The shaped part (3) and surface layer (4) together form a one-piece part of a cured plastic, in that in the vicinity of the shaped part are incorporated larger particles and in the vicinity of the surface layer (4) smaller particles, e.g. aluminium particles, in such a way that the particles represent a larger proportion of the weight than the plastic.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: January 18, 2000
    Assignee: Unipor AG
    Inventor: Theodor Hirzel
  • Patent number: 5993705
    Abstract: Containers are conveyed through an oven on a conveyor to cause a foamable material on each container to foam and become a heat insulative layer. The containers are supported on respective holders of the conveyor, which prevent the containers from contacting one another. Preferably, the holders support the containers loosely, to enable the containers to wobble relative to the holders under the influence of oven air currents and conveyor vibration. The holders thus do not make contact with any given point on their respective containers for a time period that is sufficient to enable the holders to draw enough heat away from the container to adversely affect the foaming operation. The containers are conveyed in single file, along a serpentine path through the oven.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: November 30, 1999
    Assignee: Fort James Corporation
    Inventors: Grigory Grishchenko, Walter Malakhow, Arthur H. Livingston, Leo W. Gontkosky, David C. Brown, Michael A. Breining