To Degas Or Prevent Gas Entrapment Patents (Class 264/102)
  • Patent number: 8262841
    Abstract: Methods and apparatus for fabricating adhesive bonded joints while minimizing the voids and/or porosity found in the cured bondline. In accordance with various embodiments, the apparatus comprises an evacuation chamber combined with a pressure inducing device to produce bonded joints that are both void free and thoroughly compacted. The surfaces to be bonded are continuously evacuated throughout the bonding process (pre-mating, mating, debulking and cure). Continuous evacuation is provided via standard vacuum, while the induced pressure can be pneumatically or mechanically provided.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: September 11, 2012
    Assignee: The Boeing Company
    Inventors: Megan Nicole Watson, Joseph L. Hafenrichter, Mary H. Vargas, Michael W. Evens
  • Publication number: 20120223461
    Abstract: The present invention provides an imprinting device and an imprinting method which can uniformly apply pressure between a mold and a molding object and which can increase and decrease a temperature at a fast speed. An imprinting device is for transferring a pattern on a mold to a film molding object, and comprises a stage for holding the mold, a pressurizing-chamber casing which configures a pressurizing-chamber together with the molding object, sealing means which airtightly seals a space between the pressurizing-chamber casing and the molding object, opening and closing means which opens and closes the space between the pressurizing-chamber casing and the molding object, pressurizing means which adjusts atmospheric pressure in the pressurizing-chamber, heating means which heats either one of or both of the mold and the molding object, and degassing means which eliminates any gas present between the mold and the molding object.
    Type: Application
    Filed: May 15, 2012
    Publication date: September 6, 2012
    Applicant: SCIVAX CORPORATION
    Inventors: Yoshiaki Takaya, Yuji Hashima, Yoshihisa Hayashida, Hirosuke Kawaguchi, Satoru Tanaka, Akihiko Kanai, Kazuaki Uehara
  • Patent number: 8257541
    Abstract: A method of manufacturing a hermetically sealed container provided with first and second substrates includes the steps of disposing, within a chamber, the first and second substrates opposite to each other to form a gap therebetween, and separating an edge portion of at least the first substrate from the second substrate, for processing to warp the first substrate, within the chamber. Additional steps include exhausting a space between the first and second substrates, by exhausting an inside of the chamber in a state of warping the first substrate, and hermetically connecting the first and second substrates through a bonding material, within the chamber, in a state of exhausting the space between the first and second substrates.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: September 4, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsutoshi Hasegawa, Toshiaki Himeji
  • Patent number: 8252214
    Abstract: A gas extraction method including: providing an injection mold apparatus (100) including a mold cavity (300), a gas vent (490) and a gas vent pin (49), the mold cavity including an end portion of a material injection path (210), the gas vent communicating with the end portion, the gas vent pin being received in the gas vent; injecting molten material into the mold cavity and toward the end portion; venting gas from a gap between the gas vent pin and the gas vent as molten material is injected into the mold cavity; driving the gas vent pin to substantially close the end portion of the material injection path when the mold cavity having been injected with molten material to about 95 percent of a capacity of the mold cavity.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: August 28, 2012
    Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., FIH (Hong Kong) Limited
    Inventors: Chin-Pai Lin, Dian-Hong Wei
  • Patent number: 8221666
    Abstract: A method for producing a composite structure and a composite structure obtained by the method is described.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: July 17, 2012
    Assignee: LM Glasfiber A/S
    Inventors: Tommy Mikkelsen, Morten Stage
  • Patent number: 8221664
    Abstract: A hot axial pressing method for sintering a ceramic powder, particularly doped Gd2O2S, comprises the step of placing a first porous body (7), the ceramic powder (9) and a second porous body (7) into a mould shell (5) supported by a support (13, 14). The ceramic powder (9) is located between the porous bodies (7). Gaseous components are evacuated from the ceramic powder (9) up to an ambient pressure of less than 0.8 bar. The porous body (7) and the ceramic powder (9) are heated to a maximum temperature of at least 900° C. and are applied to a pressure up to a maximum pressure of at least 75 Mpa. According to the invention the variation in time of the heating step and the variation in time of the pressure applying step is adjusted to each other such that the mould shell 5 is held by the porous bodies (7) and/or the ceramic powder (9) in a state where the mould shell (5) and the support (13, 14) are disconnected with respect to each other.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: July 17, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Guenter Zeitler, Herbert Schreinemacher, Cornelis Ronda
  • Patent number: 8211223
    Abstract: A clay-pulp mixture is prepared by blending a predetermined ratio of clay and wood pulp (specifically, fiber derived from virgin alpha cellulose) in dry form, moistening the mixture homogeneously by adding water and continuing to blend until a malleable consistency is achieved. Air is extracted from the moist mixture, and solid blocks formed for storage and delivery to end-users.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: July 3, 2012
    Inventor: Jonathan Brooks
  • Patent number: 8211533
    Abstract: This invention relates to blends of polyethylene and polypropylene useful to make films for packaging of flowable materials, in particular liquids. In addition to possessing good flex crack resistance, these films can withstand steam sterilization and/or aseptic packaging conditions as they have Hot Tack Initiation Temperatures in the range of from about 100° C. to about 140° C. and Hot Tack Strengths of not more than 5 N/inch in the temperature range from 100° C. to 150° C.
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: July 3, 2012
    Assignee: Liqui-Box Corporation
    Inventors: Alan Keith Breck, Nicholas Farkas, Yuqi Cai
  • Patent number: 8211214
    Abstract: The present invention is directed toward a method for reducing pattern distortions in imprinting layers by reducing gas pockets present in a layer of viscous liquid deposited on a substrate. To that end, the method includes varying a transport of the gases disposed proximate to the viscous liquid. Specifically, the atmosphere proximate to the substrate wherein a pattern is to be recorded is saturated with gases that are either highly soluble, highly diffusive, or both with respect to either the viscous liquid, the substrate, the template, or a combination thereof. Additionally, or in lieu of saturating the atmosphere, the pressure of the atmosphere may be reduced.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: July 3, 2012
    Assignees: Molecular Imprints, Inc., Board of Regents, The University of Texas
    Inventors: Frank Y. Xu, Niyaz Khusnatdinov
  • Publication number: 20120161361
    Abstract: A method for pouring resin in a stator (2) of an electric machine, in particular an axial flux machine, in which a plurality of coils (5) is supported by a magnetic core (4) contained in a container (12), in which resin is poured in order to fill the spaces existing between the various components contained in the container (12). The method comprises the steps of heating a resin (20) until it reaches a pre-set temperature T1, corresponding to which is a target value of fluidity; supplying in a controlled way an electric current Istat to the coils (5) so that the current will flow in the coils (5), which behave as resistors, thus obtaining a heating by the Joule effect of the coils (5) which reach a temperature T2 that is higher than the temperature T1 of the resin; mixing the resin with a catalyst and pouring the mixture of resin and catalyst into the container (12) so that the resin fills said spaces; and obtaining complete hardening of the poured resin.
    Type: Application
    Filed: April 21, 2010
    Publication date: June 28, 2012
    Applicant: ANSALDO ENERGIA S.P.A
    Inventors: Gian Paolo Ghelardi, Guido Botto, Giuseppe Canepa
  • Patent number: 8202454
    Abstract: A mold and method for vacuum assisted resin transfer molding of a fiber reinforced laminated structure are provided. The mold includes a first mold part and a second mold part. The first mold part defines a negative impression of the laminated structure, being structurally stable and forming a support for fiber reinforcement layers of the laminated structure. The second mold part connectable to the first mold part for closing the mold and defines together with the first mold part an enclosed space which can be evacuated. The mold further includes a flow duct for guiding a liquid polymer which is formed as a recess in the first mold part and/or a recess in the second mold part that is open towards the enclosed space and extends along a section of the periphery of the first mold part and/or the second mold part.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: June 19, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Claus Burchardt, Allan Hurup, Michael Nørlem, Bendt Olesen, Henrik Stiesdal
  • Publication number: 20120139147
    Abstract: An extruder for feeding material and for removing gas from the fed material. The extruder includes a vent block positioned between a first and second auger. The vent block including a vent cavity having a feed end and an exit end, an inner feed ring that partially extends into said vent cavity at the feed end of the vent cavity, and a screw element rotatably positioned in the vent cavity. A front portion of the outer ring is longitudinally aligned with or overlapping the front end of the inner feed ring. The outer ring forms at least one gap or opening at or adjacent the feed end of the vent cavity to enable gas to flow out of the vent cavity as material is moved though the vent cavity from the feed end to the exit end by the screw element.
    Type: Application
    Filed: November 29, 2011
    Publication date: June 7, 2012
    Inventor: KURT G. HOUK
  • Publication number: 20120119406
    Abstract: A compression molding apparatus and method for the manufacture of abrasive layers for abrasive tooling which provides a compression mold space defined between an inflexible wall surface and a flexible wall surface. The apparatus and method of the present invention is particularly well suited to making annular or hollow cylindrical shaped abrasive layers of novel configurations during a single mold cycle useful for grinding wheel and the like, as well as other shapes such as laps, wherein the flexible wall expanded with fluid pressure provides a highly uniform distribution of pressure against the surface of the mold composition being formed. In an annular configuration, the flexible wall is used to radially direct pressure against a molding composition disposed in an annular configuration wherein the axial length of the annular mold shape formed may be many times greater than priorly obtained by the prior art means.
    Type: Application
    Filed: December 21, 2011
    Publication date: May 17, 2012
    Applicant: ABRASIVE TECHNOLOGY, INC.
    Inventors: Loyal M. Peterman, JR., Yefim Vernik
  • Publication number: 20120118080
    Abstract: Device (100) for touch-sensitive characterisation of surface texture comprising at least one three-axis force sensor (104) at least partially covered by a coating structure (108) comprising at least one first part (110) placed against the sensor and at least a second part (112) placed against the first part such that the first part is arranged between the sensor and the second part, the second part comprising at least one protrusion arranged on a side opposite the first part and a shoulder arranged against a first face of the first part of the coating structure, located on the side opposite a second face of the first part placed against the sensor, the hardness of the material of the first part being lower than the hardness of the material of the second part.
    Type: Application
    Filed: March 12, 2010
    Publication date: May 17, 2012
    Applicant: Commissariat a l'energie atomique et aux energies
    Inventors: Florian de Boissieu, Bernard Guilhamat
  • Patent number: 8178032
    Abstract: The present invention generally relates to a mold assembly (32, 34) and a method of using the mold for the manufacture of composite parts which, more particularly, are generated from a strengthener in a generally solid phase and a matrix in a generally liquid phase. Various types of molds and processes may be used in order to impregnate a strengthener with a matrix such that a composite part may be manufactured, but the efficiency rate and the duration of the manufacturing process significantly varies depending on the chosen type of mold and process. The present invention relates to a mold assembly and to the manufacture of composites by using the mold assembly which includes the injection of the matrix in the mold assembly containing the strengthener and a deformable member (36) which favors the impregnation of the matrix toward the strengthener.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: May 15, 2012
    Assignee: Polyvalor, Limited Partnership
    Inventors: Eduardo Ruiz, Francios Trochu
  • Publication number: 20120114973
    Abstract: A thermal processing and consolidation system is provided that includes an upper chamber assembly lower chamber assembly, layup and demolding station, transfer assembly, automatic or permanent coupling system, and controller. The upper and lower chamber assemblies are coupled to form an enclosed plenum operable to maintain a pressurized environment about a tool. The layup and demolding station receives the tool and facilitates the layup, bagging and sealing of unprocessed components at the tool. A transfer assembly accurately positions the tool on the lower chamber assembly in alignment with the upper chamber assembly. An automatic or permanent coupling system provides services to the tool and the enclosed plenum. A controller directs services to be supplied to the enclosed plenum and tool in accordance with a set of process parameters. This set of process parameters allows an individual set of unprocessed components to be thermally processed and consolidated.
    Type: Application
    Filed: November 7, 2011
    Publication date: May 10, 2012
    Applicant: GLOBE MACHINE MANUFACTURING COMPANY
    Inventors: Ronald M. JACOBSEN, Antonin PELC, Calvin D. BAMFORD, JR., Terrance William COOKE, Victor Wayne CROSTON, Russell Carver WARRICK
  • Patent number: 8168099
    Abstract: A laboratory test tube is formed between male and female mold elements by injection of molten plastic material. The female element has a bottom element formed by first and second alternating complementarily shaped wedges. At least the second wedges are able to move under the pressure of the molten plastic from a rest position to an operative position in order to form slits which allow air, but not molten plastic, to exit from the mold.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: May 1, 2012
    Assignee: Vacutest Kima S.r.L.
    Inventor: Renzo Chiarin
  • Patent number: 8158051
    Abstract: An intermediate sealing element and method for unsealing a vacuum membrane from one tool surface and transferring it to another tool surface without damaging the vacuum membrane. The intermediate sealing element forms a continuous path around the periphery of a vacuum membrane and is sealed directly to one or more vacuum membranes and a tool surface using any means known in the art to create an airtight seal between two surfaces. The intermediate sealing element is able to withstand high temperatures and high pressure without altering its structural characteristics. Because of its durability, the intermediate sealing element can be removed from the tool surface without tearing or elongating, subsequently allowing the vacuum membranes to be detached from the tool surface without tearing or elongating.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: April 17, 2012
    Assignee: Spirit AeroSystems, Inc.
    Inventors: Steven F. Hanson, Jeffrey W. Priest, Carl R. Fiegenbaum, Kelvin D. Nguyen
  • Patent number: 8137494
    Abstract: Certain example embodiments of this invention relate to vacuum insulating glass (VIG) units, and/or methods of making the same. More particularly, certain example embodiments relate to VIG units having large pump-out ports, and/or methods of making the same. In certain example embodiments, a vacuum insulating glass (VIG) unit is provided. First and second spaced-apart glass substrates are provided, and a gap is provided between the spaced-apart substrates. A pump-out port has a size (e.g., diameter) of at least about 30 mm. A cover seals the pump-out port. A getter is in communication with the gap. The pump-out port is sealed using the cover, in making the vacuum insulating glass unit, via a sealing material provided proximate to the cover and/or proximate to the pump-out port.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: March 20, 2012
    Assignee: Guardian Industries Corp.
    Inventors: David J. Cooper, Vijayen S. Veerasamy
  • Patent number: 8137516
    Abstract: The hydrogen-oxygen generating electrode plate using a carbon nano tube includes a carbon nano tube (CNT); a carbon (C); NiO; NaTaO3; and a catalyst. The method for manufacturing a hydrogen and oxygen generating electrode plate using a carbon nano tube, includes a step S1 for grinding into high-density powders; a step S2 for uniformly mixing carbon nano tube powder, carbon powder, NiO powder, NaTaO3 powder and catalyst and forming a mixture having a high distribution degree; a step S3 for inputting the mixture into a mold and pressing the same and forming a pressing forming object; and a step S4 for plasticity-forming the pressing forming object in a vacuum plasticity furnace.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: March 20, 2012
    Inventor: Boo-Sung Hwang
  • Patent number: 8128396
    Abstract: A sealing device for forming an airtight seal between a first body, such as a cure tool, and a second body, such as a vacuum bag, without the use of adhesives. The sealing device may comprise an outer surface attached to the second body, an inner surface configured to face the first body, and two cusps located at opposite edges of the inner and outer surfaces. The sealing device may form a continuous boundary around an area of any shape or size. The sealing device may have a substantially crescent-shaped cross-section, allowing the sealing device to suction to the first body when compressed against the first body. The sealing device may also comprise a tab portion protruding from the inner surface between the first and second cusp for providing a more secure seal between the sealing device and the first body.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: March 6, 2012
    Assignee: Spirit AeroSystems, Inc.
    Inventors: William Tod Ross, Jeffery Max Buxman
  • Patent number: 8119054
    Abstract: A method and apparatus for manufacturing a molded product that includes a resin coating step of coating molten resin onto a forming mold having a minute uneven portion on the surface thereof, a compressing step of pressing the molten resin using the forming mold to thereby arrange the shape of the molded product, and a solidifying step of cooling and solidifying the molten resin. The resin coating step supplies the molten resin to a resin coating device including a discharge port and, while moving the resin coating device, discharges the molten resin onto the minute uneven portion of the heated forming mold from above to fill the molten resin into the minute uneven portion substantially in the same shape and thickness as those of a final shape of the molded product.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: February 21, 2012
    Assignee: Japan Steel Works, Ltd.
    Inventors: Hiroshi Ito, Kazutoshi Yakemoto
  • Publication number: 20120025151
    Abstract: Curable epoxy resin composition including an epoxy resin component and a filler component and optionally a hardener component and further additives, wherein (a) the curable epoxy resin composition has been produced by separately mixing together at least a part of the epoxy resin component and at least a part of the filler component and optionally some or all of the optional additives, prior to mixing theses components with the optional hardener component and with any remaining optional additives present in the curable epoxy resin composition, and that (b) the mixing together of at least a part of the epoxy resin component and at least a part of the filler component and optionally some or all of the optional additives has been carried out at a temperature higher than the casting temperature of the curable epoxy resin composition, and electrical insulation systems made therefrom.
    Type: Application
    Filed: September 20, 2011
    Publication date: February 2, 2012
    Applicant: ABB Research Ltd
    Inventors: Cherif Ghoul, Willi Gerig, Urs Bodmer, Vincent Tilliette
  • Publication number: 20110315824
    Abstract: A composite structure is made by placing a stiffener preform and a composite structure reinforcement on a tool. The preform and the reinforcement are vacuum bagged processed and co-infused with a thermoset resin to form a stiffened, unitized structure.
    Type: Application
    Filed: June 25, 2010
    Publication date: December 29, 2011
    Inventors: David A. Pook, Peter J. Lockett, Andrew Glynn
  • Patent number: 8083516
    Abstract: A mold includes a parting surface, runners, mold cavities, gates and primary air-venting grooves defined in the parting surface. The gates connect the respective runners to the corresponding mold cavities. Each primary air-venting groove includes an air-receiving groove portion and an air-venting groove portion in communication with the air-receiving groove portion. The air-receiving groove portion communicates with the gate and surrounds the corresponding mold cavity. The air-venting groove portion extends to and terminates at a corresponding edge of the parting surface.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: December 27, 2011
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Ming-Lung Guo
  • Patent number: 8080194
    Abstract: Disclosed herein are methods and pressure vessels for solid-state microcellular processing of thermoplastic rolls and sheets. In one embodiment, the present invention is directed to a method for making a gas impregnated interleaved roll, which method comprises: providing a pressure vessel having an internal pressure chamber and a rotatable shaft horizontally positioned within the pressure chamber; placing an interleaved roll about the rotatable shaft and within the pressure chamber, wherein the interleaved roll is made from a thermoplastic material sheet interleaved together with a gas-channeling material sheet; pressurizing the pressure chamber to a selected pressure; rotating the rotatable shaft having the interleaved roll thereabouts (thereby rotating the interleaved roll) while under pressure for a selected period of time; and depressurizing the internal chamber to yield the gas impregnated interleaved roll.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: December 20, 2011
    Assignee: MicroGREEN Polymers, Inc.
    Inventors: Krishna Nadella, Steven Powers, Thomas Malone
  • Patent number: 8075812
    Abstract: A method of separating a poly(arylene ether) from a solvent includes treating a poly(arylene ether)-containing solution with a devolatilizing extruder to form an extruded composition, and cooling the extruded composition with a cooling device that does not immerse the extruded composition in water. The composition may be used to isolate a poly(arylene ether) from the solvent-containing reaction mixture in which it is prepared, or to remove solvent from a multi-component poly(arylene ether)-containing thermoplastic composition.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: December 13, 2011
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Christina Louise Braidwood, Alvaro Carrillo, Hua Guo, Gerardo Rocha-Galicia
  • Publication number: 20110274899
    Abstract: Disclosed is a multilayer film which uses a lactic acid polymer as a main raw material and is suppressed in generation of an annoying odor. Specifically disclosed is a multilayer film which comprises at least three layers including a surface layer and an intermediate layer containing a lactic acid polymer (B) and a plasticizer (C). The multilayer film is characterized in that the detected amount of lactic acid oligomer components is controlled to 50 ng/cm2 or less, or that the amount of odor components derived from the plasticizer is controlled to 50 ng/cm2 or less.
    Type: Application
    Filed: January 19, 2010
    Publication date: November 10, 2011
    Applicant: MITSUBISHI PLASTICS, INC.
    Inventors: Maiko Suzuki, Tomoyuki Nemoto
  • Patent number: 8048357
    Abstract: A process for forcibly infusing liquid potting compound into the exposed strands of a cable prior to forming a termination. The process uses a mold that encloses the exposed strands. Potting compound is then pumped into the mold, where it runs around and through the exposed strands. A second venting passage is preferably employed, so that the liquid potting compound flows through the mold without trapping any air pockets.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: November 1, 2011
    Inventors: Kevin J. Barefield, Richard Campbell
  • Patent number: 8043453
    Abstract: The present application is directed to methods of preparing a wet composite patch for use in various applications, such as, for example, reworking a composite part of an aircraft. The method comprises heating the composite patch to a temperature that causes resin containing gaseous components to flow from the patch through a flow path. The gaseous components are vented from the resin while restricting the flow of resin from the composite patch by restricting the flow of resin through the flow path. Systems for performing the methods of the present application are also disclosed.
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: October 25, 2011
    Assignee: The Boeing Company
    Inventors: Adam J. Sawicki, Jason A. Degaetano, Philip G. Persaud
  • Patent number: 8038435
    Abstract: A venting device for venting a cavity of an injection mold via a venting opening of the injection mold which cavity can be filled with an injection molding material is provided. The venting device comprising a housing which has a through-opening and is designed and intended for an arrangement on an injection mold in such a way that air which is present in the cavity and which escapes from a venting opening of the injection mold when injection molding material is introduced into the cavity can exhaust through the through-opening of the housing into an exterior space surrounding the injection mold. A valve pin extending longitudinally along a direction of extent and being mounted in the housing movably along its direction of extent. The valve pin is designed for being moved from a venting position, in the direction of the cavity into a first cleaning position.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: October 18, 2011
    Assignee: Takata-Petri AG
    Inventor: Ralf Liebmann
  • Patent number: 8038920
    Abstract: Methods of fabricating elastomeric implants employ a mold with PVA crystals and irrigant added to the mold independent of each other. Related molds are also described.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: October 18, 2011
    Assignee: Carticept Medical, Inc.
    Inventors: Guilhem Denoziere, David N. Ku
  • Patent number: 8034269
    Abstract: A compounding process is disclosed. The process includes (i) melt blending in an extruder at least two polymeric resins to produce a mixture that includes at least one resin that dissociates to yield monomers and/or oligomers upon heating, said mixture containing less than 1 percent of volatile components, (ii) introducing into said extruder an inert entraining agent, and (iii) removing said entraining agent together with said volatile components from said extruder. The extruder includes at least one melting zone, at least two degassing zones and at least one mixing zone. The end product has a particularly low content of residual solvent and at the same time a low content of monomers or oligomers.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: October 11, 2011
    Assignee: Bayer Material Science
    Inventors: Christoph Schwemler, Martin Lüdeke, Christian Kords, Reiner Rudolf
  • Patent number: 8007697
    Abstract: In a method for manufacturing slabs which are thin (10-30 mm) and broad, a cement mix comprising water, cement and a fluidizer is mixed with inert stone aggregate having a controlled particle size. The resultant mix is deposited in a predetermined thickness onto a temporary support and subjected to vacuum vibrocompression. The slab thus formed is subjected to the steps of setting and hardening by means of curing, enclosing it between two thin sheets of plastic impermeable to water vapor which are hermetically sealed along their edges. The method envisages specific measures as regards the method of mixing performed during the steps of preparation of the cement mix and mixing of the cement paste with the stone aggregrate. Other improvements concern the components of the cement paste as well as the order of introduction of the aggregate during mixing with the latter.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: August 30, 2011
    Inventor: Luca Toncelli
  • Patent number: 7993555
    Abstract: Provided are a structure of molding tools and an injection molding device that can easily perform molding of an optical element even from a resin of low velocity or the like and can suppress any negative effects by air. The structure of the molding tools includes between the molding tools (61, 62) a fixed molding tool (61) and a movable molding tool (62) and an O-ring (63a) for keeping air tightness and a resin seal (63b) for preventing any resin leakage. The O-ring (63a) performs decreasing of the pressure in a cavity (CV) formed by joining the molding tools (61, 62), whereby the vacuum molding in which resin supply and resin curing is carried out under a decreased pressure can be performed. Accordingly, the effects such as prevention of air bubbling due to air trapping by injected resin within the cavity (CV) can be attained. Furthermore, the resin seal (63b) can prevent any resin leakage from the molding tools (61, 62) even when the resin having a low viscosity is used.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: August 9, 2011
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Takemi Miyazaki, Shigeru Hosoe, Yuiti Fujii
  • Patent number: 7993569
    Abstract: The present invention provides a method of manufacturing high-melting-tension heat-resistant transparent or opaque sheets, boards, and molds from polyethylene terephthalate (PET). The method is characterized in that a mixture of: (1) PET polyester whose melt flow rate (MFR) is 45-130 g/10 minutes (a); (2) coupling agent master batch (f) comprising coupling agent (d) and substrate (e), wherein coupling agent (d) is a mixture of compounds containing 2 epoxy groups (b) and compounds containing 3 or more epoxy groups (c); and (3) catalyst master batch (i) comprising coupling reaction catalyst (g) and substrate (h); is melted in a reaction-extruder to give PET polyester whose MFR is 40 g/10 minutes or less.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: August 9, 2011
    Assignees: FTEX, Incorporated, Nakamoto Packs Co., Ltd.
    Inventors: Yukio Kobayashi, Takashi Fujimaki, Takashi Nakamoto
  • Patent number: 7981332
    Abstract: In a method for producing a composite, a carrier component is placed into an opened cavity of a mold. The mold is then closed to a predetermined position, thereby creating a cavity of a first expanded size. To improve venting, a vacuum is generated in the expanded cavity before filling the expanded cavity with a flooding material. A compression step is then executed either at the same time as flooding material is introduced or following the introduction of the flooding material.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: July 19, 2011
    Assignee: KraussMaffei Technologies GmbH
    Inventor: Marco Gruber
  • Patent number: 7981335
    Abstract: A plant and method for the manufacture of cementitious products, viz. cast concrete roof tiles (T), the plant comprising a mixing station (2) where the constituents of a cementitious composition, less an air entraining agent, are admixed under atmospheric pressure and further mixed under a partial vacuum of 200 to 340 mBar after the addition of an air entraining agent, the plant also comprising a molding station (4) where the tiles (T) are cast in a gang-mold (6) before being cured in a conventional autoclave for up to 10 hours at 45 degrees C. The cured concrete roof tiles (T) are de-molded after curing and conveyed to a surface preparation zone (12) where a primer coat of a water based epoxy and a surface coating of a water based emulsion paint are applied to at least an upper surface in use of the cast concrete roof tiles (T). The admixed cementitious composition has a Ford Cup flow of between 40 and 60 seconds and a slump test of between 180 and 220 mm.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: July 19, 2011
    Assignee: Monier Technical Centre Limited
    Inventors: Caroline Joyce Bennett, Peter Srostlik, Gregor Vogt
  • Patent number: 7981475
    Abstract: An object of the present invention is to provide a manufacturing method of a honeycomb structural body which makes the profile of a cross section perpendicular to the length direction thereof less likely to generate dispersion, and also makes the thickness of its sealing material layer thinner, and a sealing material that is suitably used in the manufacturing method of the honeycomb structural body.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: July 19, 2011
    Assignee: Ibiden Co., Ltd.
    Inventor: Tomohisa Takahashi
  • Patent number: 7980840
    Abstract: A mold and method for vacuum assisted resin transfer molding of a fiber reinforced laminated structure are provided. The mold includes a first mold part and a second mold part. The first mold part defines a negative impression of the laminated structure, being structurally stable and forming a support for fiber reinforcement layers of the laminated structure. The second mold part connectable to the first mold part for closing the mold and defines together with the first mold part an enclosed space which can be evacuated. The mold further includes a flow duct for guiding a liquid polymer which is formed as a recess in the first mold part and/or a recess in the second mold part that is open towards the enclosed space and extends along a section of the periphery of the first mold part and/or the second mold part.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: July 19, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventors: Claus Burchardt, Allan Hurup, Michael Nørlem, Bendt Olesen, Henrik Stiesdal
  • Patent number: 7968042
    Abstract: A method and apparatus for molding a structure on the top surface of a substrate. Mold material is dispensed onto an area of the top surface of the substrate. The mold apparatus is positioned over the area. The mold portion of the mold apparatus is positioned above the mold material and the mold material is surrounded with a shroud of the mold apparatus. A seal is formed between the shroud and the top surface of the substrate. The pressure is reduced within the shroud to below the ambient pressure. The mold portion of the mold apparatus is lowered toward the top surface of the substrate, so that at least the outer edge of the mold portion is in contact with the mold material. The pressure within the shroud is raised to at least the ambient pressure, and the mold material is cured to form the structure.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: June 28, 2011
    Assignee: Aptina Imaging Corporation
    Inventor: Rickie C. Lake
  • Publication number: 20110111099
    Abstract: A food package for sliced food products to be maintained with a fluffed appearance, the package including a base member forming a compartment for receiving the food product and a lid sealed to the compartment. The base member has a gripping portion and the lid has a tab which overlies the gripping portion when the lid is connected to the base member. In one form, the gripping portion of the base member has a plurality of edges that define an outer profile of the gripping portion and expose a portion of a lower surface of the tab. The outer profile limits tacking of the tab to the gripping portion when the lid and base member are cut from respective webs of material. Additionally, a method is provided for assembling a food container.
    Type: Application
    Filed: November 6, 2009
    Publication date: May 12, 2011
    Inventors: Bonita M. Hinze, James F. Schmitt, David W. Wiseman
  • Patent number: 7927525
    Abstract: A process of manufacturing micro or nanostructure surfaces or parts formed of PTFE by applying a vacuum to powered or granulated PTFE in a heated compression mold. The process further includes applying a compression anvil within the metallic mold, removing the mold from a heat source and quenching the mold while maintaining the pressure in the mold during quenching. A mold or mold insert may be manufactured from sintered metal, sintered ceramic or sintered stainless steel to allow the vacuum to be applied across a surface holding the micro or nanostructures.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: April 19, 2011
    Inventors: Todd E. Lizotte, Orest Ohar
  • Publication number: 20110068514
    Abstract: The present invention generally relates to a mold assembly (32, 34) and a method of using the mold for the manufacture of composite parts which, more particularly, are generated from a strengthener in a generally solid phase and a matrix in a generally liquid phase. Various types of molds and processes may be used in order to impregnate a strengthener with a matrix such that a composite part may be manufactured, but the efficiency rate and the duration of the manufacturing process significantly varies depending on the chosen type of mold and process. The present invention relates to a mold assembly and to the manufacture of composites by using the mold assembly which includes the injection of the matrix in the mold assembly containing the strengthener and a deformable member (36) which favors the impregnation of the matrix toward the strengthener.
    Type: Application
    Filed: December 2, 2010
    Publication date: March 24, 2011
    Applicant: POLYVALOR, LIMITED PARTNERSHIP
    Inventors: Eduardo Ruiz, François Trochu
  • Patent number: 7892464
    Abstract: In the sector relating to the technology of compaction by means of vacuum vibro-compression for manufacturing slabs or blocks, the organic binder resin consists of an aqueous dispersion of acrylic prepolymer in water and a filler part consists of a hydraulic binder in an amount sufficient to fix wholly or partly the water present in the initial mix; after the vibro-compression step the rough-formed article is subjected to a hardening and curing step in conditions such as to prevent the evaporation of the mix water and subsequently to a heating step so as to obtain crosslinking of the acrylic polymer. If the acrylic binder alone is used, an article with a high degree of porosity is obtained.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: February 22, 2011
    Inventor: Luca Toncelli
  • Patent number: 7892467
    Abstract: The invention relates to a method of producing a shell member of fiber composite material by means of vacuum infusion, where the fiber material is impregnated with liquid polymer, and applying a mould (18) with a mould cavity. In the mould cavity a lower distribution layer (11) is placed. A fiber insertion (1) including a plurality of fiber layers is placed above the lower distribution layer (11). A first upper distribution layer (9) and a second upper distribution layer (10) are placed at a transverse distance of each other above the fiber insertion, so that at least a part of the first distribution layer overlaps a first zone (2) of the fiber insertion (1), and at least a part of the second distribution layer overlaps a second zone (3) of the fiber insertion (1), the first zone (2) and the second zone (3) being separated by an intermediate zone (6) neither overlapping the first nor the second distribution layer (9, 10).
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: February 22, 2011
    Assignee: LM Glasfiber A/S
    Inventors: Michael Kofoed, Tim Møller Hansen
  • Publication number: 20110037191
    Abstract: A method and arrangement to produce a wind-turbine-blade are disclosed. A bottom layer is laid down into a forming tool. The bottom layer is used as a base of a pile. A predefined number of additional layers is stacked vertically on top of the basis to form the pile, while the pile is used as a separate module for the production of the blade. The bottom layer is made of a nearly airtight material, to prevent that surrounding air is allowed to flow vertically through the pile. An extraction of air is applied by a machine to a topmost layer of the pile in a way that the pile is sucked towards the machine. This allows to lift up the pile and to bring it into a mould for the further production of the blade.
    Type: Application
    Filed: August 5, 2010
    Publication date: February 17, 2011
    Inventor: Henrik Stiesdal
  • Patent number: 7887725
    Abstract: Dope is discharged onto the peripheral surface of a rotating casting drum to form a casting bead. A decompression chamber decompresses an upstream side from the casting bead in a moving direction of the casting drum. The decompression chamber includes a sensor unit for detecting a width of the casting bead. A control section shifts outer side seal plates in the width direction based on the width data, such that the outer side seal plates are located in an upstream side from side ends of the casting bead. Upon formation of a casting bead having a new width, the control section shifts the outer side seal plates based on the new width such that the outer side seal plates are located in the upstream side from the side ends of the casting bead having the new width.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: February 15, 2011
    Assignee: FUJIFILM Corporation
    Inventor: Akinori Ochiai
  • Publication number: 20110024695
    Abstract: A hydrogen-oxygen generating electrode plate and a method for manufacturing the same. The hydrogen-oxygen generating electrode plate includes TiO2, CO2O3, Cr2O3, NiO, carbon nano tube, Ni or Cr and ceramic catalyst, and the TiO2, CO2O3, Cr2O3, NiO, carbon nano tube, Ni or Cr and ceramic catalyst are pressed in the type of powder and are solidified and plasticized in a vacuum plasticizing furnace. The method for generating the hydrogen-oxygen generating electrode plate includes a step S1 in which powder types of TiO2, CO2O3, Cr2O3, NiO, carbon nano tube, Ni or Cr and ceramic catalyst are uniformly mixed for thereby forming a mixed compound with a high distribution degree; a step S2 in which the mixed compound is inputted into a mold and is pressed for thereby forming a solid type pressing material; and a step S3 in which the pressing material is plasticized in a vacuum plasticizing furnace.
    Type: Application
    Filed: February 8, 2010
    Publication date: February 3, 2011
    Inventor: Boo-Sung Hwang
  • Publication number: 20110012282
    Abstract: A method of forming a hollow composite construction member of the type suitable for use as building material includes providing an elongated inflatable mold assembly having a longitudinal axis. The mold assembly further has a flexible, substantially tubular bladder wall defining an elongated inflatable cavity, wherein the cavity is movable between a deflated condition, an inflated condition, and a plurality of partially inflated conditions. A reinforcing fabric is positioned concentrically around the flexible bladder wall. A flexible air-impervious outer layer is positioned concentrically around the fabric, with the bladder wall and the outer layer defining an elongated annular space. The fabric is positioned within the space. An intermediate member is inserted within the elongated annular space between the reinforcing fabric and the tubular bladder. A fluid is introduced into the cavity to at least partially inflate the mold and shape the fabric.
    Type: Application
    Filed: September 27, 2010
    Publication date: January 20, 2011
    Applicant: UNIVERSITY OF MAINE SYSTEM BOARD OF TRUSTEES
    Inventors: Habib J. Dagher, Richard F. Nye