Means For Forming From Bulk Material, Means For Severing And Means For Reshaping Patents (Class 425/296)
  • Patent number: 4304541
    Abstract: Apparatus for making extruded bricks having a textured handmade appearing face designed to form the outer building wall surface, comprising a brick extruding die including a progressively narrowing inlet funnel portion having a downstream end and a constricted neck portion forming a material shaping die throat to receive a column of brick forming clay mix and shape the clay mix column to a rectangular cross-section whose width dimension perpendicular to said face slightly exceeds the desired brick width. A subsurface disrupting elongated thin bridge member transversely spans the die throat and is supplied with liquid under pressure to produce downstream directed liquid jets internally disrupting the clay mix column in the die throat immediately below the upper boundry surface thereof along a substantially horizontal disruption plane.
    Type: Grant
    Filed: June 23, 1980
    Date of Patent: December 8, 1981
    Assignee: Isenhour Brick & Tile Company, Inc.
    Inventors: William A. Cruse, John H. Isenhour, Jr.
  • Patent number: 4292266
    Abstract: Methods and apparatuses for making decorative grass or grass-like product in the form of strips of plastic material of predetermined dimensional characteristics having color, anti-static agents and flame retardants incorporated therein prior to extrusion of the resin thereby preventing rub off of the color and minimizing clinging of grass to the hands and clothes of a decorator. One method and apparatus for making the grass includes an extruder for plastic material and including a film extrusion die or a strand extrusion die. When a film is extruded, the film is cooled and slit longitudinally into strips of predetermined width. In another method, the extruded strips or strands are cooled. In all methods, the plastic strips pass through a slow godet, a drawing oven and a high speed godet to enable the strips or strands to be drawn down in width and thickness without breaking. From the high speed godet, the strips or strands are chopped to a desired length and conveyed to a storage area.
    Type: Grant
    Filed: September 12, 1979
    Date of Patent: September 29, 1981
    Assignee: Highland Manufacturing & Sales Co.
    Inventors: Erwin H. Weder, Donald E. Weder
  • Patent number: 4284597
    Abstract: An apparatus for stripping continuously a solid mass in a strip from a two roll mill comprising a frame; knife means at a first end of said frame adapted to cut a strip of solid mss from said two roll mill; first roller means adapted to receive the cut strip and pass it through a dusting means which applies a non-stick powder on said cut strip. Second roller means in said dusting means adapted to pass said dusted cut strip through such dusting means into a packaging container. There is also envisioned a novel means for fixing the distance of the knife means from the two roll mill with precision.
    Type: Grant
    Filed: March 13, 1979
    Date of Patent: August 18, 1981
    Assignee: General Electric Company
    Inventor: Edward I. Stein
  • Patent number: 4270891
    Abstract: An improvement in plastic film formation devices which utilizes a unique cutting and take-off assembly. Flattening, cutting, and paired turning rod assembly move about the axis of the extruded tubular section of plastic in such a manner so as to continuously slice a helical section from the tubular extrusion. The mechanical arrangement of the flattening, cutting, and paired turning rod assembly provides for changing the pitch of the helix cut by changing the position of said assembly relative to the draw rollers.This arrangement results in a simplified overall mechanical device which can randomize thickness variations across the width of sheets formed and also determine the width of said sheets. It also provides for more control of cooling air required to cool the extruded tube.
    Type: Grant
    Filed: August 16, 1979
    Date of Patent: June 2, 1981
    Inventor: Stephen M. Hopper
  • Patent number: 4255161
    Abstract: Apparatus for introducing solid fuels into a pressure gasification reactor comprising at least one conveyor worm turnable in a housing for conveying finely divided fuel, optionally mixed with a binder, and compacting the fuel into a gas-tight plug which is discharged through a discharge opening leading to the pressure gasification reactor. The discharge opening is provided with a closure member and the housing has an outlet opening also provided with a closure member near the discharge opening. The outlet opening is open to the ambient atmosphere. The closure members of the discharge opening and the outlet opening are alternatively actuatable such that when one is open the other is closed.
    Type: Grant
    Filed: November 9, 1979
    Date of Patent: March 10, 1981
    Assignees: Werner & Pfleiderer, Veba Oel AG
    Inventors: Albert Grimminger, Jurgen Strecker, Werner Wiedmann, Peter Wenning
  • Patent number: 4244915
    Abstract: The invention is a process and apparatus for continuously thermoforming plastic containers wherein opposed co-rotating discs process a molten sheet of thermoplastic material having a wedge-shaped cross-section, said discs transporting said thermoplastic material through a plug-assisted pressure and/or vacuum forming station, a shear station and a part removal station.
    Type: Grant
    Filed: December 29, 1978
    Date of Patent: January 13, 1981
    Assignee: Hercules Incorporated
    Inventor: Bruce B. Boardman
  • Patent number: 4243366
    Abstract: A method of affecting the tail end of a roll of plastic film to render it readily identifiable and easy to grasp and start without tearing the film web into strips. The tail end of the film is embossed on-line as it is separated and about to be wound up on a roll core. The method is accomplished by securing the tail end between a heated surface on the upstream side of a knife on a cut-off roll and a lifting and embossment mechanism to provide a wide embossment across the tail end of the film at about the time it is severed from the film stock. The method produces a novel puckered tail, particularly for highly oriented films where tension is relieved while the tail end is still heated.
    Type: Grant
    Filed: September 17, 1979
    Date of Patent: January 6, 1981
    Assignee: The Dow Chemical Company
    Inventors: Lloyd E. Lefevre, Mark A. Wegenka
  • Patent number: 4211524
    Abstract: Rolls 9, 10 for a compacting mill 5 by which finely divided agglomerative material 6 is compacted into a sheet 7 produce a pattern of slots 23 in the opposite surfaces of the sheet 7 whereby the sheet is encouraged to fracture into tablet-like bodies 8 of uniform size and shape. The slots 23 are defined by uniformly spaced ridges 21 on the rolls 9, 10, the ridges 21 on one roll 9 or 10 extending transversely to those on the other roll 10 or 9. Preferably the ridges 21 extend circumferentially on one roll 9 and axially on the other roll 10. A form for the ridges 21 is described that enables their easy and complete withdrawal from the slots 23 in the sheet 7 and encourages the sheet 7 to fracture on the medial plane of every slot 23.
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: July 8, 1980
    Assignee: Allis-Chalmers Corporation
    Inventor: George J. Jennrich
  • Patent number: 4204818
    Abstract: A strip of heated thermoplastic material is extruded from a die past first and second stations while the strip is drawn down between the die and the first station. Initial cooling of the strip is performed at the first station and further drawing down of the strip is effected between the first and second stations. The strip is thereafter guided through a plurality of spaced convolutions about a journaled cylindrical member driven at a peripheral speed substantially equal to the linear speed of the strip as it enters the second station.
    Type: Grant
    Filed: September 18, 1978
    Date of Patent: May 27, 1980
    Inventor: Donald J. Reum
  • Patent number: 4184831
    Abstract: A synthetic plastic drain pipe comprising a continuous pipe of plastic material having transverse, angular or helical corrugations, said pipe having openings for the entry of water, said openings being disposed in said pipe at regular repeating intervals between corrugated lengths of pipe at least at every 20 cm, preferably 30-50 cm, said pipe being free of any opening between said intervals; an apparatus for producing such a synthetic drain pipe, particularly a pipe having distinct portions of general cross section wherein on said portions there are longitudinally running grooves through which there are disposed openings, said apparatus comprising an extruder having an extrusion head, said extrusion head having a generally annular opening defined by a generally circular die disposed about a generally circular mandrel, said apparatus having in general axial alignment with said opening a pair of endless traveling means in the form of a mold train, each of which traveling means carries cooperating mold halves w
    Type: Grant
    Filed: June 9, 1976
    Date of Patent: January 22, 1980
    Inventors: Wilhelm Hegler, Ralph-Peter Hegler
  • Patent number: 4178146
    Abstract: A mold provided with cutter means movable relative to the other elements of the mold to sever an extension portion of a hollow article formed in the mold from the remainder thereof while the article is in the mold and without effecting substantial movement of the article relative to the mold.
    Type: Grant
    Filed: September 22, 1975
    Date of Patent: December 11, 1979
    Assignee: The Continental Group, Inc.
    Inventor: John P. Kinsley
  • Patent number: 4166140
    Abstract: A fish-canning method using a machine having two adjacent parallel rotary turrets each having a fish-receiving pocket in the periphery thereof. The turrets are positioned to align the pockets with each other to form a single combined pocket which is then filled with fish from a correspondingly large size feed chute of increasing cross-sectional area. The fish in the pockets is severed between the turrets and the turrets are rotated by different amounts to move the filled pockets laterally out of alignment with each other. The fish in both filled pockets is formed into the shape of a can and ejected endwise from the pockets into two separate cans.
    Type: Grant
    Filed: September 6, 1977
    Date of Patent: August 28, 1979
    Assignee: Sea-Pac, Inc.
    Inventors: Edward E. Dutton, Jack Gorby
  • Patent number: 4116600
    Abstract: A fish-canning machine having two adjacent parallel rotary turrets each having a fish-receiving pocket in the periphery thereof. The turrets are positioned to align the pockets with each other to form a single combined pocket which is then filled with fish from a corresponding large size feed chute of increasing cross-sectional area. The fish in the pockets is severed between the turrets and the turrets are rotated by different amounts to move the filled pockets laterally out of alignment with each other. The fish in both filled pockets is formed into the shape of a can and ejected endwise from the pockets into two separate cans.
    Type: Grant
    Filed: September 1, 1976
    Date of Patent: September 26, 1978
    Assignee: Sea-Pac, Inc.
    Inventors: Edward E. Dutton, Jack Gorby
  • Patent number: 4074958
    Abstract: A machine having two extruders operable to move hot plastic materials of different colors through passages of a die. The die has a merging chamber where the plastic materials from the two extruders are fused in side-by-side positions and an outlet opening through which the fused materials are discharged to form a two-colored ribbon product. A rotatable mandrel located in a water tank winds the ribbon product into a helical coil spring shape. A separator plate surrounding the mandrel guides the ribbon in a helical direction as the ribbon is wound around the mandrel. The ribbon product is cooled and set as it is wound around the mandrel.
    Type: Grant
    Filed: October 8, 1976
    Date of Patent: February 21, 1978
    Inventor: Lester V. Molenaar
  • Patent number: 4030865
    Abstract: An apparatus for simultaneous defiberization of waste paper stock and uniform dispersion and accumulation of the defiberized fine fiber stock for dry web formation comprising a defiberizing drum having cylindrical teeth formed of its inside circumferential plane and an outlet part for the delivery of said defiberized fine stock formed of its lower part, a hollow rotary shaft provided rotatably in said defiberizing drum, a multitude of swing hammers provided swingably around said hollow rotary shaft both circumferentially and axially at respectively regular intervals, said swing hammers having edges formed of their top and facing said cylindrical teeth with a suitable clearance maintained between said edges and cylindrical teeth, air vents provided to the hollow rotary shaft for passing outer air from said shaft to the inside of said drum and a suction wire part for receiving and supporting the thin paper sheet to accumulate the fine stock thereon, said suction wire part being provided under said outlet part h
    Type: Grant
    Filed: July 3, 1975
    Date of Patent: June 21, 1977
    Inventor: Tadashi Kobayashi
  • Patent number: 4028024
    Abstract: From an extruder head a descending column of edible substance or medicament encased in a casing forming material of gelatin or dough is extruded. The casing forming material may be a single color or different colors on opposite sides. This column is pinched off by a pair of rotating wheels each having half cavities therein to form capsules or sticks of encased edible substance or medicament. The casing material is then hardened.
    Type: Grant
    Filed: September 30, 1976
    Date of Patent: June 7, 1977
    Inventor: Stephen T. Moreland
  • Patent number: 4006599
    Abstract: A synthetic plastic drain pipe comprising a continuous pipe of plastic material having transverse, angular or helical corrugations, said pipe having openings for the entry of water, said openings being disposed in said pipe at regular repeating intervals between corrugated lengths of pipe at least at every 20 cm, preferably 30-50 cm, said pipe being free of any opening between said intervals; an apparatus for producing such a synthetic drain pipe, particularly a pipe having distinct portions of general cross section wherein on said portions there are longitudinally running grooves through which there are disposed openings, said apparatus comprising an extruder having an extrusion head, said extrusion head having a generally annular opening defined by a generally circular die disposed about a generally circular mandrel, said apparatus having in general axial alignment with said opening a pair of endless traveling means in the form of a mold train, each of which traveling means carries cooperating mold halves w
    Type: Grant
    Filed: March 4, 1975
    Date of Patent: February 8, 1977
    Inventors: Wilhelm Hegler, Ralph-Peter Hegler
  • Patent number: 4005959
    Abstract: Apparatus for forming shaped articles from glass fiber reinforced gypsum. An aqueous slurry of calcium sulfate hemihydrate, water and glass fibers contains between 22 and 45 parts by weight water, 100 parts by weight calcium sulfate hemihydrate and 3 to 10 parts by weight glass fiber. The slurry is provided as a continuous ribbon on a moving, water-impermeable first membrane. A water-impermeable second membrane is applied above the continuous ribbon and sealed along its side edges to the side edges of the first membrane to form a sandwich consisting of the two membranes and the slurry ribbon.The sandwich is shaped prior to the setting of the gypsum and is retained in the desired shape until initial setting occurs. Thereafter at least a portion of one of the two membranes is removed and substantially all of the uncombined water is removed from the shaped ribbon.
    Type: Grant
    Filed: February 27, 1976
    Date of Patent: February 1, 1977
    Assignee: H. H. Robertson Company
    Inventor: Glenn E. Kautz
  • Patent number: 4005965
    Abstract: In record producing apparatus a biscuit mold is formed in upper and lower complemental cup parts with fragmental rims which, on lowering the upper cup part onto the lower cup part for closing the mold cavity to form a biscuit therein, complement each other peripherally to form an uninterrupted annular rim, so that on raising the upper cup part from the lower cup part in opening the mold, the mold cavity is opened not only at the bottom but also at the top for direct exposure of a good part of a formed biscuit to the cooling effect of external air.
    Type: Grant
    Filed: May 27, 1975
    Date of Patent: February 1, 1977
    Assignee: Valley Metallurgical Processing Co., Inc.
    Inventors: Joseph P. Roczynski, Chester P. Roczynski
  • Patent number: 3994215
    Abstract: Methd and apparatus for the manufacture of chips or flakes from food, stimulant, or feed materials such as fruits, vegetables, potatoes or the like in which a moist mass of material is deposited on a rotating cylinder. The film is formed on the drum and then removed therefrom, cut into strips and formed into typical chip-like shape, and then removed. A plurality of rotating knives is provided downstream of the cylinder to cut the film into strips and preferably to shape the chips as they are being cut.
    Type: Grant
    Filed: March 18, 1975
    Date of Patent: November 30, 1976
    Inventor: Hanshermann Rabeler
  • Patent number: 3957412
    Abstract: The present invention concerns a cupping machine for producing containers thermoplastic film and comprising a device for placing a tape-like strip in a mold, in the frame of which machine are disposed a holder for a roll of thermoplastic film, means for moving this film, a heating device and a shaping apparatus which comprises at least one row of molds, which are displaceable at right angles to the plane of the film, extend over the entire width of the film, and, after the film has been heated, are pressed towards a male half having first-stage shaping mandrels and disposed on the other side of the film, the containers being finally formed by means of a pressure media and, at the same time, the tape-like strips, brought into the molds, being sealed onto the container, in which machine there are provided devices for introducing the tape-like strip directly into the molds.
    Type: Grant
    Filed: December 11, 1974
    Date of Patent: May 18, 1976
    Assignee: Ste. D'Application Plastique, Mecanique et Electronique Plastimecanique
    Inventor: Raymond Lechevallier
  • Patent number: 3939236
    Abstract: The method for blow molding foam walled plastic using a quadrisectional mold. A parison of foamed plastic may be blow molded to assume the contour of the closed mold, after which the molded shape is severed into two portions and ejected. Desirably, cellular plastic is blow molded to form hot drink cups.
    Type: Grant
    Filed: January 24, 1973
    Date of Patent: February 17, 1976
    Assignee: Cosden Oil & Chemical Company
    Inventor: Granville J. Hahn
  • Patent number: 3936263
    Abstract: Plastic is cleanly severed between closely adjacent inner sections of radially operable blow molds in a rotary molding machine during mold opening by means of a wiper blade on the trailing face of the inner section of one mold angularly projecting toward and having its rear edge engaging the forward face of the next succeeding inner mold section, each such inner section being spring mounted and arranged because of the mold-opening cam configuration, to spring outwardly such that the rear edge of the blade slides along the forward face of the succeeding mold to consistently shear the plastic between such edge and such forward face.
    Type: Grant
    Filed: April 9, 1975
    Date of Patent: February 3, 1976
    Assignee: Monsanto Company
    Inventors: Michael J. Avery, Lawrence A. Martino