Pressing With Flexible Diaphragm Patents (Class 162/220)
  • Patent number: 10711404
    Abstract: Press for making large molded pulp objects, which has a raisable and lowerable male mold half, perforated for suction dewatering after dipping into a pulp slurry. The molding surface of said male mold half is coated with an elastomer to preserve even surface contact with the molded pulp object during compression and during thermal expansion or contraction of said mold halves. Advantageous embodiments include vacuum distribution troughs beneath the elastomer layer in the male mold half, multiple wire mesh layers on top of the perforated elastomer layer, and slight lateral adjustability of the otherwise stationary female mold half.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: July 14, 2020
    Assignee: ORGANOCLICK AB
    Inventors: Per Sundblad, Torbjörn Hansson, Tommy Ollevik
  • Patent number: 9173418
    Abstract: A method for producing confectionary products having an outer shell made of a substance that is placed inside a mold into which a temperature-controlled male die is subsequently introduced. The substance is placed under pressure after the male die is introduced.
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: November 3, 2015
    Assignee: KMB PRODUKTIONS AG
    Inventor: Guido Knobel
  • Patent number: 7449087
    Abstract: A method of producing a fiber molded article using a pressing mold, includes inserting a first split and a second split into a slurry tank such that a fiber layer is formed on the first split and a fiber layer is formed on the second split, placing the pressing mold, which includes a solid elastic member and an inflatable elastic member configured to be inflated, onto the fiber layer on the first split, joining the first split and the second split such that a fiber molded article is formed from the fiber layer on the first split and the fiber layer on the second split, and dewatering and shaping the fiber molded article by pressing the fiber molded article by the solid elastic pressing member and the inflatable elastic pressing member.
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: November 11, 2008
    Assignee: Kao Corporation
    Inventors: Shingo Odajima, Tokihito Sono, Koichi Sagara, Hiromichi Kimbara
  • Patent number: 7008509
    Abstract: A molded body formed with pulp mold having projected lines corresponding to a slit-shaped vent package part, capable of being provided by paper-making/dewatering, using a paper making mold, a slurry having fibers dispersed in a liquid so as to obtain a three-dimensional fiber wetted laminated body, moving the laminated body to a dry mold having an inner surface with the slit-shaped vent package, and pressing and drying that laminated body.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: March 7, 2006
    Assignee: Kao Corporation
    Inventors: Kenichi Otani, Toshio Kobayashi, Toshiharu Togashi, Shingo Odajima, Tokihito Sono, Masayuki Osaki, Hiromichi Kimbara, Atsushi Sato
  • Patent number: 6994772
    Abstract: Disclosed is a method of producing a fiber-molded hollow article by using a papermaking mold (2) composed of splits (21, 22) which are joined to form a cavity (20) having two openings (20a, 20b) connecting with the outside and an expandable pressing member (3) adapted to be placed in the cavity (20). The method comprises the steps of immersing each of the splits (21, 22) before being joined in a fiber slurry to form a fiber preform (10a, 10b), joining the splits (21, 22) each having the fiber preform (10a, 10b) formed thereon while placing the pressing member (3) in the cavity (20), and molding and dewatering a molded article (1) in the papermaking mold (2).
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: February 7, 2006
    Assignee: Kao Corporation
    Inventors: Hiromichi Kimbara, Koichi Sagara, Masayuki Osaki, Tokuo Tsuura
  • Patent number: 6899793
    Abstract: A method of producing a pulp molded article. The method feeds a pulp slurry to a cavity of a papermaking mold having a prescribed cavity shape to form a pulp preform including a main part having an opening and a separable part having a flange and connected to an edge of the opening. A pressing member is inserted into the preform, the pressing member is expanded to press the preform toward the papermaking surface, the preform is removed from the papermaking mold, and then the preform is cut at a joint between the separable part and the main part.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: May 31, 2005
    Assignee: Kao Corporation
    Inventors: Akira Nonomura, Yasushi Yamada, Tokuo Tsuura, Hiroaki Kobayashi, Kenichi Otani
  • Patent number: 6841041
    Abstract: A method for producing a pulp molded article (7) comprising the steps of supplying a pulp slurry into the cavity (1) of a mold (10) composed of a set of splits (3 and 4), the set of splits (3 and 4) being assembled together to form the cavity (1) with a prescribed configuration, to form a pulp deposited body (5), feeding a fluid into the cavity (1) to press the pulp deposited body (5) onto the inner wall of the cavity (1) for dewatering.
    Type: Grant
    Filed: January 2, 2003
    Date of Patent: January 11, 2005
    Assignee: Kao Corporation
    Inventors: Yoshiaki Kumamoto, Kenichi Otani, Shinji Otakura, Tokuo Tsuura, Masataka Ishikawa, Toshiyuki Suga, Akira Nonomura
  • Patent number: 6830658
    Abstract: A method for producing a pulp molded article (7) comprising the steps of supplying a pulp slurry into the cavity (1) of a mold (10) composed of a set of splits (3 and 4), the set of splits (3 and 4) being assembled together to form the cavity (1) with a prescribed configuration, to form a pulp deposited body (5), feeding a fluid into the cavity (1) to press the pulp deposited body (5) onto the inner wall of the cavity (1) for dewatering.
    Type: Grant
    Filed: February 13, 2003
    Date of Patent: December 14, 2004
    Assignee: Kao Corporation
    Inventors: Yoshiaki Kumamoto, Kenichi Otani, Shinji Otakura, Tokuo Tsuura, Masataka Ishikawa, Toshiyuki Suga, Akira Nonomura
  • Patent number: 6797120
    Abstract: A method for producing a pulp molded article is disclosed. The method comprises the steps of forming and drying a pulp molded precursor (15). The drying step includes a first step and a second step. In the first step, the precursor (15) is set in a cavity of a heating mold, and is hot-pressed. The cavity has a configuration in conformity to the contour of the pulp molded article to be produced. In the second step, the hot-pressed precursor (15) is taken out from the heating mold and is heat-dried in a drying furnace.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: September 28, 2004
    Assignee: Kao Corporation
    Inventor: Akira Nonomura
  • Publication number: 20040011489
    Abstract: Disclosed is a method of producing a fiber-molded hollow article by using a papermaking mold (2) composed of splits (21, 22) which are joined to form a cavity (20) having two openings (20a, 20b) connecting with the outside and an expandable pressing member (3) adapted to be placed in the cavity (20). The method comprises the steps of immersing each of the splits (21, 22) before being joined in a fiber slurry to form a fiber preform (10a, 10b), joining the splits (21, 22) each having the fiber preform (10a, 10b) formed thereon while placing the pressing member (3) in the cavity (20), and molding and dewatering a molded article (1) in the papermaking mold (2).
    Type: Application
    Filed: July 18, 2003
    Publication date: January 22, 2004
    Inventors: Hiromichi Kimbara, Koichi Sagara, Masayuki Osaki, Tokuo Tsuura
  • Patent number: 6645348
    Abstract: Pulp deposited bodies (7 and 8) are formed on the surfaces (2a and 3a) of a set of splits (2 and 3) of a papermaking mold, each split having a plurality of interconnecting holes connecting the outside to the inside thereof, and the splits (2 and 3) are mated to join the pulp deposited bodies (7 and 8).
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: November 11, 2003
    Assignee: Kao Corporation
    Inventors: Yoshiaki Kumamoto, Shinji Otakura, Kenichi Otani, Shingo Odajima, Tokuo Tsuura
  • Patent number: 6592720
    Abstract: A method for producing a pulp molded article is disclosed. The method comprises the steps of forming and drying a pulp molded precursor (15). The drying step includes a first step and a second step. In the first step, the precursor (15) is set in a cavity of a heating mold, and is hot-pressed. The cavity has a configuration in conformity to the contour of the pulp molded article to be produced. In the second step, the hot-pressed precursor (15) is taken out from the heating mold and is heat-dried in a drying furnace.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: July 15, 2003
    Assignee: Kao Corporation
    Inventor: Akira Nonomura
  • Patent number: 6547931
    Abstract: A method for producing a pulp molded article (7) comprising the steps of supplying a pulp slurry into the cavity (1) of a mold (10) composed of a set of splits (3 and 4), the set of splits (3 and 4) being assembled together to form the cavity (1) with a prescribed configuration, to form a pulp deposited body (5), feeding a fluid into the cavity (1) to press the pulp deposited body (5) onto the inner wall of the cavity (1) for dewatering.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: April 15, 2003
    Assignee: Kao Corporation
    Inventors: Yoshiaki Kumamoto, Kenichi Otani, Shinji Otakura, Tokuo Tsuura, Masataka Ishikawa, Toshiyuki Suga, Akira Nonomura
  • Publication number: 20030010462
    Abstract: A method of producing a pulp molded article is disclosed. The method comprises the steps of: feeding a pulp slurry to a cavity (4) of a papermaking mold (1) having a prescribed cavity shape to form a pulp preform (7) comprising a main part (7a) having an opening and a separable part (7b) having a flange (7c) and connected to the edge of the opening; inserting a pressing member (8) into the preform (7); expanding the pressing member (8) to press the preform (7) toward the papermaking surface; removing the preform (7) from the papermaking mold (1); and then cutting the preform (7) at a joint between the separable part (7b) and the main part (7a).
    Type: Application
    Filed: August 15, 2002
    Publication date: January 16, 2003
    Inventors: Akira Nonomura, Yasushi Yamada, Tokuo Tsuura, Hiroaki Kobayashi, Kenichi Otani
  • Patent number: 6481313
    Abstract: A protective cover for a zone of a machine tool, within whose area a working part of the machine moves along an operating path. The cover comprises a plurality of cover elements consisting of a fixed cover element which can be attached to the machine, a mobile element connected to the working part and a plurality of mobile cover elements positioned between the fixed cover element and the mobile cover element. The cover elements are arranged in order of decreasing size and lie around the working part, connected to one another by a first support and guide rod and a second support and guide rod, at a given distance from one another. Between the cover elements and the rods there is a plurality of sliders designed to guide the mobile cover elements in a direction parallel to and in a direction at right angles to the rods, during movement of the working part, keeping the working zone covered.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: November 19, 2002
    Assignee: P.E.I. Protezioni Elaborazioni Industriali S.r.L.
    Inventor: Giorgio Tabellini
  • Patent number: 6468398
    Abstract: Pulp deposited bodies (7 and 8) are formed on the surfaces (2a and 3a) of a set of splits (2 and 3) of a papermaking mold, each split having a plurality of interconnecting holes connecting the outside to the inside thereof, and the splits (2 and 3) are mated to join the pulp deposited bodies (7 and 8).
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: October 22, 2002
    Assignee: Kao Corporation
    Inventors: Yoshiaki Kumamoto, Shinji Otakura, Kenichi Otani, Shingo Odajima, Tokuo Tsuura
  • Patent number: 6461480
    Abstract: A pulp molded article is produced by depositing pulp fiber on the outer surface of a papermaking core mold having a plurality of interconnecting paths connecting the outside and the inside to form a pulp deposited body, placing the pulp deposited body in a set of split molds, and then pressing the pulp deposited body for dehydration by a prescribed means.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: October 8, 2002
    Assignee: Kao Corporation
    Inventors: Shinji Otakura, Yoshiaki Kumamoto, Kenichi Otani, Tadaharu Ogawa, Atsushi Sato
  • Patent number: 6454906
    Abstract: A process for producing a pulp molded article comprising inserting a hollow inflatable pressing member 81 which has been made small so as to have smaller cross-sectional contour into a cavity 4 of a mold 1 in which a pulp layer 7 has been formed, and feeding a pressurizing fluid into the inserted pressing member 81 to inflate the pressing member 81 thereby to press the pulp layer 7 onto the inner wall of the cavity 4.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: September 24, 2002
    Assignee: Kao Corporation
    Inventors: Akira Nonomura, Atsushi Sato, Tokuo Tsuura, Yasushi Yamada, Hiroaki Kobayashi, Shingo Odajima, Tokihito Sono
  • Publication number: 20020096298
    Abstract: A loudspeaker in which the input resistance is improved and the effect of humidity on the playback frequency response is suppressed, and a method for the preparation of the loudspeaker. A sheet-like product, containing glass particles with a particle size of 8 nm to 300 nm and polyamide resin, and prepared by application of a paper-making technique, is used as the diaphragm. The content of the glass particles in the compound material is 5 weight % to 70 weight %. In preparing the diaphragm, a phase of an aqueous solution containing diamine and water glass is contacted with a phase of an organic solution containing a dicarboxylic acid halide to generate a compound material containing glass particles and the polyamide resin. The compound material so prepared is formed into a sheet by a paper-making technique. In the process of the preparation by the paper-making technique, the compound material mixed with other fibrous material may also be used as a starting material.
    Type: Application
    Filed: April 13, 2001
    Publication date: July 25, 2002
    Inventors: Masaru Uryu, Kunihiko Tokura, Yoshio Ohashi, Satoshi Idemura, Michiya Nakashima, Katsuji Takahashi
  • Publication number: 20020088581
    Abstract: The present invention provides an extruded cellulosic fibrous product. In one embodiment, the product includes in situ crosslinked cellulosic fibers. In another embodiment, the product further includes a bonding agent. The product can optionally include other fibers and absorbent material. Methods for making the cellulosic fibrous product and absorbent articles that include the cellulosic fibrous product are also described.
    Type: Application
    Filed: November 14, 2001
    Publication date: July 11, 2002
    Inventors: Peter A. Graef, Terry M. Grant
  • Patent number: 6149845
    Abstract: A method of manufacturing paper coffin for use in cremation including the steps of forming a box and a cover for a coffin from prepared pulp by vacuum molding, drying the molded box and cover, compressing walls of the box and of the cover in a die casting machine to consolidate them and give them enhanced structural strength, and painting the box and the cover so that the coffin has beautified outer surfaces. Dies for compressing the walls of the box and the cover may be provided with patterns so as to form raised or depressed patterns on outer wall surfaces of the coffin.
    Type: Grant
    Filed: March 29, 1999
    Date of Patent: November 21, 2000
    Inventor: Shieh Chwan Ren
  • Patent number: 5900119
    Abstract: The present invention comprises a method for forming a biodegradable, thin-walled packing chip from an aqueous pulp of recycled newsprint by contacting the pulp with a mold comprising: (a) a solid core having substantially the shape of the article to be formed and having a minimal number of holes through which air may be evacuated and (b) an air permeable, stretchable fabric which covers the exterior of the core. After forming the chip on the fabric through application of a vacuum, the fabric is separated sufficiently from the solid surface to cause release of the chip from the fabric. The dried packing chip has enhanced packing qualities, is environmentally friendly and provides a significant new use for recycled newsprint.
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: May 4, 1999
    Assignee: E-Tech Products, Inc.
    Inventors: John Lawrence Goers, Thomas S. Warda, William H. Oliver
  • Patent number: 5833805
    Abstract: A unique method of producing a reinforced moulded sheet having one continuously planar face and having a plurality of ribs or thickened areas which provide a corresponding plurality of prominences directed outwardly of the other face, said prominences having predetermined shapes, locations and dimensions to serve as reinforced areas for said sheet. And a series of new or improved composite hollow moulded panels, each comprised of at least two co-extensive elements, each of said panels being reinforced and improved by the provision of at least one of said reinforced moulded sheets as an external element of said at least two co-extensive elements, the ribs or thickened areas of said reinforced sheet being glued internally of said hollow panel to the adjacent co-extensive element thereof.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: November 10, 1998
    Inventor: Roy William Emery
  • Patent number: 4162935
    Abstract: A coffin for a human being molded of papier-mache. The coffin is formed with ribs that provide strength to the structure and at the same time have a decorative effect. The improved method of forming the coffin includes drawing paper pulp onto the molds while the latter are inverted so that there is a heavy flow of pulp by gravity to the open end of the coffin to produce heavier flanges. When the mold is received from the pulp with the coffin molded onto it, an air impervious blanket is placed over the coffin when the vacuum is applied to suction the water from the papier-mache so that greater compression of the pulp is obtained to produce a stronger papier-mache structure and reduce the drying time.
    Type: Grant
    Filed: May 31, 1977
    Date of Patent: July 31, 1979
    Assignee: Idra AG
    Inventors: Harry Kollmann, Roland H. Goetsch