Capsule Making Patents (Class 425/804)
  • Patent number: 8727754
    Abstract: The claimed subject matter relates to a rotary die device for producing soft capsules, comprising a capsule forming unit for forming a soft-capsule shell and a dosing unit for feeding a filling material into the capsule forming unit, characterized in that the dosing unit comprises a conveying apparatus of viscous melts and a portioner, wherein the portioner is connected at an end thereof to the conveying apparatus of viscous melts and is arranged in a filling wedge with a section in such a way that filling material from the portioner reaches the location of the capsule filling directly or by means of one or more channels having a length of at most 30 mm. Using said device, high-viscosity filling materials can be filled and thus novel soft capsules can be made accessible.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: May 20, 2014
    Assignee: Swiss Caps Rechte und Lizenzen AG
    Inventors: Erich Brocker, Alois Peter, Georg Sydow
  • Patent number: 8506273
    Abstract: A liquid coolant supply pipe and an over flow pipe are provided on the outer side of a capsule forming pipe through which a liquid coolant flows and into which liquid droplets are dropped from a nozzle. The liquid coolant is supplied to the liquid coolant supply pipe by a low pulsatory motion type pump, and the flow is regulated by a flow straightening block in the liquid coolant supply pipe. The cooling liquid passes through a liquid coolant introducing section having a curved surface, and then flows into the capsule forming pipe from an upper portion opening in a cap mounted to the upper part of the capsule forming pipe. The liquid coolant flows into the capsule forming pipe, and the excess flows into the overflow pipe.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: August 13, 2013
    Assignee: Freund Corporation
    Inventors: Masayuki Ikeda, Hiroshi Nagao
  • Patent number: 8491298
    Abstract: A method is disclosed for the sealing of hard shell capsules having coaxial body parts which overlap when telescopically joined. Also described is an apparatus to seal the capsules. The method comprises the steps of holding the capsule in a precise and upright position and injecting a known quantity of sealing fluid in the overlap of the body parts. An apparatus for performing the method is also disclosed. The apparatus comprises a sealing clamp (1, 11, 21, 31, 41, 51, 61) to hold the capsule in an upright position and means (5, 15, 25, 35, 45, 55, 65) to inject the sealing fluid in the overlap of the body parts.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: July 23, 2013
    Assignee: Capsugel Belgium NV
    Inventors: Dominique Nicolas Cade, Hoehn Frederic, Robert Anthony Scott, Peter Charles Philippe
  • Patent number: 8210839
    Abstract: The invention provides a new method and apparatus for making multicolor gelatin ribbons and softgel capsules is provided which uses a modification of the gelatin spreader boxes by incorporating especially designed pipelines that are bifurcated with a tee.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: July 3, 2012
    Assignee: Procaps SA
    Inventor: Juan Pablo Manotas Dugand
  • Patent number: 7568902
    Abstract: The present invention is directed to a bitumen bale capsule, capsule dispenser and bale strip former for viscous bitumen products comprising a bitumen bale capsule; a capsule dispenser (L) in order to position the said PE encapsulating capsule inline with a plurality of dispensing valves (F) and a plurality of forming nozzles (M); a bitumen bale strip former for converting the said round PE encapsulated tubes into flat strips suitable for baling. The overall function of the said bitumen bale capsule is to encapsulate viscous bituminous products forcing through the internal core of the said capsule. The said products exiting the said encapsulation process in the form of a PE round tube are converted into a flat strip suitable for baling utilizing both of the said capsule dispenser and the said bale strip former.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: August 4, 2009
    Assignee: Eastern Petroleum SDN BHD
    Inventor: Gordon William Thomas
  • Patent number: 7156643
    Abstract: Machine for forming caps by compression molding comprising: a first carousel rotating about a central axis and provided peripherally with a plurality of compression molding units mounted equidistant from each other and from the axis of rotation, said units comprising an upper punch and a lower die provided with a cavity, said punch and die being mutually movable along a common vertical axis in response to suitable operating means; a second carousel rotating about a central axis parallel to that of the first carousel and provided peripherally with means for feeding the charge of material to be molded to the die cavities of the first carousel, and means for collecting the molded caps abandoned by the punches of the first carousel; means for feeding charges of material to be molded to said second carousel; a possible third carousel provided peripherally with means for guiding and conveying the caps abandoned by the second carousel; said first and second carousel and said second and possible third carousel having
    Type: Grant
    Filed: January 12, 2004
    Date of Patent: January 2, 2007
    Assignee: Sacmi-Cooperativa Meccanici Imola Soc. Coop. A.R.L.
    Inventor: Fiorenzo Parrinello
  • Patent number: 6805818
    Abstract: An apparatus and a process useful for producing patterned gelatin ribbons for forming patterned soft gelatin capsules are disclosed. The apparatus and process use multiple spreader boxes to form a wide variety of possible patterns.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: October 19, 2004
    Assignee: Pursuit Marketing, Inc.
    Inventors: Gregory A. Schurig, Bud Bezaire, Michael Ratko, Lawrence A. Baker, Robert Mikalian
  • Publication number: 20030127760
    Abstract: An apparatus and a process useful for producing patterned gelatin ribbons for forming patterned soft gelatin capsules are disclosed. The apparatus and process use multiple spreader boxes to form a wide variety of possible patterns.
    Type: Application
    Filed: February 24, 2003
    Publication date: July 10, 2003
    Applicant: R. P. Scherer Corporation
    Inventors: Gregory A. Schurig, Bud Bezaire, Michael Ratko, Lawrence A. Baker, Robert Mikalian
  • Patent number: 6569363
    Abstract: An apparatus and a process useful for producing patterned gelatin ribbons for forming patterned soft gelatin capsules are disclosed. The apparatus and process use multiple spreader boxes to form a wide variety of possible patterns.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: May 27, 2003
    Assignee: R. P. Scherer Corporation
    Inventors: Gregory A. Schurig, Bud Bezaire, Michael Ratko, Lawrence A. Baker, Robert Mikalian
  • Patent number: 6402496
    Abstract: A manufacturing apparatus for manufacturing gelatin capsules is disclosed in which two gelatin sheets having preliminarily formed pockets are supplied between a pair of opposing rolls. The pocket are preliminarily sutured together by action of the rolls to form the pocket. A pusher is selectively driven through a hole to drive a weighed amount of capsule content into the pocket after which the die rolls complete the suture to form the pocket containing the capsule content.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: June 11, 2002
    Assignee: Timecaps Inc.
    Inventors: Toshimitsu Ishikawa, Nobuyuki Wada
  • Patent number: 6337045
    Abstract: A method and apparatus for manufacturing pharmaceutical capsules use an aqueous solution of a thermogelling cellulose ether composition and use capsule body pins and capsule cap pins as molds. The method involves heating the pins, dipping the pins into the solution to cause the solution to gelatinize on the surface of the pins, removing the pins and drying the gelatinized solution on the surface of the pins to form capsule bodies and capsule caps. Pins are heated pre-dip and post-dip to facilitate gelating. Counterflow air is applied to provide drying from the inside. Capsule parts are removed by gripping. Capsule parts may have a thick wall and a stiffening ring.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: January 8, 2002
    Assignee: R. P. Scherer Technologies, Inc.
    Inventors: Ralph R. Grosswald, Jeffory B. Anderson, Clair S. Andrew
  • Patent number: 6022499
    Abstract: An apparatus and a process useful for producing patterned gelatin ribbons for forming patterned soft gelatin capsules are disclosed. The apparatus and process use multiple spreader boxes to form a wide variety of possible patterns.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: February 8, 2000
    Assignee: R.P. Scherer Corporation
    Inventors: Gregory A. Schurig, Bud Bezaire, Michael Ratko, Lawrence A. Baker, Robert Mikalian
  • Patent number: 6000928
    Abstract: A capsule making machine includes a pin bar having a set of passageways disposed so as to allow free passage of fluid through a base. In another aspect of the present invention, a hood having a substantially triangular side view shape is disposed within the capsule hardening station for dispersing fluid upon the pin bars to promote hardening of the capsules. Another aspect of the present invention provides specific heating temperature ranges within predetermined section of the capsule hardening station. Methods of constructing a pin bar and for operating a capsule making machine are also provided within the present invention.
    Type: Grant
    Filed: April 3, 1997
    Date of Patent: December 14, 1999
    Assignee: Technophar Equipment & Service Limited
    Inventors: Herman Victorov, Ioan Dumitru Balc
  • Patent number: 5993185
    Abstract: A pin mold and pin bar assembly for use in a methylcellulose capsule-making machine includes a pin bar, an insulating strip, and a pin mold mounted to the pin bar and insulating strip. The pin mold has a shell composed of stainless steel and a copper core. The subject invention also includes a deck plate assembly for use with the pin mold and pin bar assembly. The deck plate assembly includes a deck plate, at least one heating element, a sensor, and a power supply. The deck plate assemblies may be arranged in a kiln section of a methylcellulose capsule-making machine and may be heated to desired temperatures independent of adjacent deck plate assemblies.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: November 30, 1999
    Assignee: Farmacapsulas S.A.
    Inventor: Douglas K. Furr
  • Patent number: 5945136
    Abstract: A capsule-making system for the manufacture of capsules for pharmaceutical use includes an elevator for manipulating and uniformly heating a plurality of vertically stacked pin bars prior to dipping. The heated elevator station is positioned before the dipping station as part of the capsule-making machine. The elevator comprises a series of vertically stacked pin bars. A series of oil lines carrying hot oil is provided is within the elevator such that each of the pin bars is evenly heated. More than one elevator (i.e., more than one pin bar stack) may be situated in a side-by-side manner. Each elevator stack is selectively moved up or down by means of one or more hydraulic cylinders.
    Type: Grant
    Filed: April 3, 1997
    Date of Patent: August 31, 1999
    Assignee: Technophar Equipment & Service Limited
    Inventors: Herman Victorov, Ioan Dumitru Balc
  • Patent number: 5750157
    Abstract: Apparatus for manufacturing pharmaceutical capsules uses an aqueous solution of a thermogelling cellulose ether composition, and uses capsule body pins and capsule cap pins as molds. The apparatus heats the pins, dips the pins into the solution to cause the solution to gelatinize on the surface of the pins, and dries the gelatinized solution on the surface of the pins to form capsule bodies and caps. The apparatus provides differential heating and supplemental heating of the pins before dipping, and directed radiant heating after dipping. The apparatus provides counterflow air for drying. The apparatus removes parts from pins by gripping. The pins are smaller than pins used to make gelatin capsules of the same size number.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: May 12, 1998
    Assignee: GS Technologies, Inc.
    Inventors: Ralph R. Grosswald, Jeffory B. Anderson, Clair S. Andrew
  • Patent number: 5735105
    Abstract: A continuous solvent free gelatin encapsulation apparatus and process includes an oil roll back assembly (20) for applying a controlled amount of a food-approved lubricant to a first side of the gelatin ribbon and an applicator guide bar assembly (40) for applying a controlled amount of food-approved lubricant to a second side of the gelatin ribbon. Two opposing food-approved lubricant coated gelatin ribbons are then united in a die assembly (50) to form gelatin capsules which are then dried and recovered.
    Type: Grant
    Filed: October 2, 1995
    Date of Patent: April 7, 1998
    Assignee: R. P. Scherer Corporation
    Inventors: Norman S. Stroud, David J. Walker, Kelvin R. Garnett, Arthur J. Burnett, Anthony J. Wood
  • Patent number: 5698155
    Abstract: A method and apparatus for manufacturing pharmaceutical capsules use an aqueous solution of a thermogelling cellulose ether composition and use capsule body pins and capsule cap pins as molds. The method involves heating the pins, dipping the pins into the solution to cause the solution to gelatinize on the surface of the pins, removing the pins and drying the gelatinized solution on the surface of the pins to form capsule bodies and capsule caps. Pins are heated pre-dip and post-dip to facilitate gelating. Counterflow air is applied to provide drying from the inside. Capsule parts are removed by gripping. Capsule parts may have a thick wall and a stiffening ring.
    Type: Grant
    Filed: January 24, 1995
    Date of Patent: December 16, 1997
    Assignee: GS Technologies, Inc.
    Inventors: Ralph R. Grosswald, Jeffory B. Anderson, Clair S. Andrew
  • Patent number: 5672300
    Abstract: An apparatus and a process useful for producing patterned gelatin ribbons for forming patterned soft gelatin capsules are disclosed. The apparatus and process use multiple spreader boxes to form a wide variety of possible patterns.
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: September 30, 1997
    Assignee: R. P. Scherer Corporation
    Inventors: Gregory A. Schurig, Bud Bezaire, Michael Ratko, Lawrence A. Baker, Robert Mikalian
  • Patent number: 5643594
    Abstract: A coating apparatus includes a rotary cup for forming beads and projecting them radially outwardly, and one or more collection basins surrounding the bead forming cup. The cup is adjustably rotatable about its central axis, and the collection basins are independently rotatable and positioned to collect the beads projected from the cup. The coating apparatus further includes an elevation adjustment system for axially adjusting the alignment of the cup with respect to the selected collection basins. The rotational speeds of the cup and the collection basins are selected so as to minimize the impact of the beads against a gelling solution in the collection basins. In use, a supply mixture is introduced into a mixing chamber of the cup. As the cup spins, the coated particles are propelled upwardly by the centrifugal force from the mixing chamber along the inner surface of the cup, and are projected radially outwardly, as beads, into the gelling solution in one of the selected basins.
    Type: Grant
    Filed: May 3, 1994
    Date of Patent: July 1, 1997
    Assignee: The Regents of the University of California
    Inventors: Randel E. Dorian, Kent C. Cochrum, Richard David Antanavich
  • Patent number: 5271881
    Abstract: An abrupt pressure change applied to a dispersion of core and shell material in a liquid carrier medium encapsulates the core material within the shell material. The method and apparatus of this invention permit a wider range of core and shell materials to be utilized than was possible with prior art methods including materials which previously have not been usable as shell materials. Materials in solid, liquid, gas or multiphase form may be encapsulated. Additionally, capsules are produced in a small fraction of the time required by prior art methods. The total time to perform the encapsulation may range from a few seconds to only a few minutes. The abrupt pressure change may be applied to the dispersion by either a piston or ultrasonic apparatus in both batch, semi-continuous, and continuous processes. Recycling of the capsules through the apparatuses permits adjustment of the capsules' characteristics as well as formation of multiple core capsules.
    Type: Grant
    Filed: December 17, 1990
    Date of Patent: December 21, 1993
    Inventor: Bruce K. Redding, Jr.
  • Patent number: 5246635
    Abstract: A softgel having a texture on at least a portion of its surface and a process and apparatus for the manufacture thereof.
    Type: Grant
    Filed: January 12, 1993
    Date of Patent: September 21, 1993
    Assignee: R. P. Scherer Corporation
    Inventors: Michael Ratko, Ovila Bezaire, Robert Morissette, Edward A. Mendelin, deceased, Tony Mendelin, legal representative, Daniel A. Tedder, deceased, John H. Kornegay, legal representative
  • Patent number: 5228573
    Abstract: A method of packaging, comprising the steps of disposing an article in a package and airtightly sealing an air sensitive reagent, which changes color upon contact with air, as at least part of the package for the article such that the seal must be broken to access the article and thereby cause the reagent to contact the air or another agent and change color. A semi-permeable membrane will allow the same reagent to function as a shelf-life indicator.
    Type: Grant
    Filed: April 23, 1991
    Date of Patent: July 20, 1993
    Inventors: Richard Pavelle, Paul Burstein, Ronald M. Latanision
  • Patent number: 5032074
    Abstract: An apparatus for manufacturing capsules which causes a solution of thermo-gelling material to gelatinize, and then drys the gel, whereby the process of manufacturing capsules is less affected by drying conditions, thus providing capsules of uniform wall thickness without wrinkles. In the apparatus of this invention, circulating capsule pins are dipped in the solution of thermo-gelling material, thus the solution adheres to the pins, and, the pins are rotated upside down, thus thickness of the solution adhering to the pins becomes uniform. Then, the pins are retained in the vessel maintained at a higher temperature than the gelling temperature of the solution, and the solution adhering to the pins is accelerated to gelatinization. The formed gel is dried in a drying device, and the dried gel bodies, i.e. capsules, are removed from the capsule pins.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: July 16, 1991
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hiroaki Muto, Yuichi Nishiyama, Toru Chiba, Kiyoshi Araume
  • Patent number: 4997359
    Abstract: An apparatus for coating molds to make hard gelatin capsules has a dish for holding a bath of liquid gelatin. A multi-well tray is submerged in the bath to establish a plurality of fluid passageways through the bath and to create a pool of liquid gelatin in each of the wells. A drive unit, having a pair of counterrotating gears, moves gelatin through the passageways and pools to maintain a substantially uniform gelatin temperature throughout the bath. Capsule molds are periodically submerged into the pools and then withdrawn to manufacture the hard gelatin capsules.
    Type: Grant
    Filed: July 17, 1989
    Date of Patent: March 5, 1991
    Assignee: Warner-Lambert Company
    Inventor: Jean C. Lebrun
  • Patent number: 4978483
    Abstract: The invention is a process and apparatus for the manufacture of microcapsules. The microcapsules have a core which contains a liquid, gaseous, solid or multiple-phase material which is coated with an impermeable film. The microcapsules are formed by applying high pressure, for a short period of time, to a mixture of the core and shell material, and by gradually reducing the pressure, such as by passing the capsules through a baffled chamber. The invention also includes a method for adjusting the size of the microcapsules, and for adjusting the thickness of their shells. The microcapsules can be made with several shell layers, to increase their strength. They can also be made as multiple capsules, having two or more cores. The invention also includes a method and apparatus for making microcapsules in a continuous process. The present invention produces microcapsules in a small fraction of the time required by methods of the prior art.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: December 18, 1990
    Inventor: Bruce K. Redding, Jr.
  • Patent number: 4902450
    Abstract: A nozzle assembly in a multi-element spherical shell generation system includes first and second side-by-side spaced apart nozzles and a web portion extending between and connecting the nozzles. The first nozzle has an inner orifice adapted to discharge a first filler material and an outer annular orifice separated from and defined in concentric relation about the inner orifice and adapted to discharge a first shell material. The second nozzle has an inner orifice adapted to discharge a second filler material and an outer annular orifice separated from and defined in concentric relation about the inner orifice and adapted to discharge a second shell material.
    Type: Grant
    Filed: September 28, 1988
    Date of Patent: February 20, 1990
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: Andrew D. Morrison
  • Patent number: 4781567
    Abstract: A compaction evaluation apparatus for determining powder plug and compaction force parameters to produce a desired plug for encapsulation. A tamping pin is operated by a piston, and the force applied by the pin as well as its dwell on the powder plug can be accurately controlled. The powder plug may be released into an actual capsule body.
    Type: Grant
    Filed: October 28, 1987
    Date of Patent: November 1, 1988
    Assignee: Warner-Lambert Company
    Inventor: Henry A. Miller, Jr.
  • Patent number: 4692284
    Abstract: A method and apparatus for forming microcapsules from a fluid medium containing living culture material by the atomization of the medium and the treatment of the atomized droplets with a treatment fluid. A medium under pressure enters a chamber having a wall with a plurality of orifices formed therein. A vibrator vibrates the chamber. As the medium passes through the orifices the exit stream vibrates and forms small droplets. The droplets fall into a collection vessel on the other side of the wall, which contains treatment fluid for hardening the droplets into microcapsules. A flow of treatment fluid may be maintained through the collection vessel to prevent clumping of the droplets and to transport the hardened microcapsules for harvesting. Preferred operating pressures, orifice size and chamber configuration are shown.
    Type: Grant
    Filed: April 30, 1986
    Date of Patent: September 8, 1987
    Assignee: Damon Biotech, Inc.
    Inventor: William I. Braden
  • Patent number: 4684574
    Abstract: The invention relates to a process for encapsulating solutions of reactants of color reaction systems by means of conventional encapsulation processes, the reactant initially being dissolved in a solvent with a good dissolving power and immediately prior to emulsification or encapsulation, a non-solvent, which only dissolves the reactant to an insignificant extent, is admixed with the fresh solution obtained in a quantity which adjusts a supersaturated system, the capsulates obtainable as a result thereof, as well as their use with an encapsulated solution of a basic color former, which supplies a color by the reaction with acid reactants, in non-carbon paper.
    Type: Grant
    Filed: March 5, 1985
    Date of Patent: August 4, 1987
    Assignee: Papierfabrik August Koehler AG
    Inventors: Gunther Pietsch, Claus Hartmann
  • Patent number: 4609403
    Abstract: Single piece capsules, produced, filled and sealed in a single operation, also known as soft shell capsules, having a special foam wall structure, obtained by a microdispersion of a gas in an aqueous mixture of dry gelatin and one or more plasticizers.The capsules are formed by processing, on soft shell capsule manufacturing machines, foamed ribbons, cast from a film forming mixture obtained by a microdispersion of a gas in an aqueous mixture of gelatin and one or more plasticizers; optionally with the inclusion of a coloring agent, an opacifying agent, a foam stabilizer, a gelatin extender, a preservative, a flavoring agent, a sweetening agent, or a drug.By a suitable choice of the gas proportion in the capsule wall and its microdispersion level, it is possible, within certain limits, to control the capsule wall disintegration speed and its opacity.
    Type: Grant
    Filed: March 12, 1984
    Date of Patent: September 2, 1986
    Assignee: Warner-Lambert Company
    Inventors: Fritz Wittwer, Jean-Philippe Mayer
  • Patent number: 4481157
    Abstract: Apparatus for continuously producing microcapsules which comprises at least one inner pipe for extruding a material to be encapsulated, at least one outer pipe for extruding an encapsulating material, the outer pipe being coaxially arranged around the inner pipe, means for delivering the material to be encapsuled to the inner pipe, means for delivering the encapsulating material to the outer pipe, at least one capsule-forming cylinder through which a coaxial jet flow of the material to be encapsulated and encapsulating material flows downwardly and through which a coagulating agent is forced to flow downwardly, a closed chamber which contains the coagulating agent and in which the capsule-forming cylinder is arranged vertically and means for delivering the coagulating agent to the chamber, which produces up to about 50,000 microcapsules per second per a set of the inner and outer pipes and the capsule forming cylinder.
    Type: Grant
    Filed: April 27, 1982
    Date of Patent: November 6, 1984
    Assignee: Morishita Jintan Co., Ltd.
    Inventors: Takashi Morishita, Hideki Sunohara, Shohachi Tanoue
  • Patent number: 4303432
    Abstract: A method for compressing gases in a contained volume consisting of hollow glass microspheres is described. The gases are compressed under high pressure and can be easily handled and stored. The gases to be compressed and contained in the microspheres are used as blowing gases to blow the microspheres.The hollow glass microspheres are made by forming a liquid film of molten glass across a coaxial blowing nozzle, applying the blowing gas at a positive pressure on the inner surface of the glass film to blow the film and form an elongated cylinder shaped liquid film of molten glass. A transverse jet is used to direct an entraining fluid over and around the blowing nozzle at an angle to the axis of the blowing nozzle. The entraining fluid as it passes over and around the blowing nozzle fluid dynamically induces a pulsating or fluctuating pressure field at the opposite or lee side of the blowing nozzle in the wake or shadow of the coaxial blowing nozzle.
    Type: Grant
    Filed: August 18, 1980
    Date of Patent: December 1, 1981
    Inventor: Leonard B. Torobin
  • Patent number: 4260357
    Abstract: This invention relates to a ring form of a rigid and durable material with a metal insert arranged in its passageway. The ring is employed to strip thin walled gelatin capsules from capsule-forming pins which are slightly tapered along their entire length.
    Type: Grant
    Filed: February 15, 1980
    Date of Patent: April 7, 1981
    Assignee: Lilly Industries Limited
    Inventors: William G. Roast, Geoffrey E. Adnams
  • Patent number: 4167380
    Abstract: An apparatus for the manufacture of multilayer articles has a plurality of female dies mounted in a rotary disc. A plurality of feeding devices equal in number to the number of layers in the articles to be manufactured is distributed about the rotary disc. Each feeding device admits a quantity of material into the female dies as these travel by. A compressing device is arranged downstream of each feeding device as seen in the direction of movement of the female dies. The compressing devices compress the material admitted into the female dies by the respective feeding devices and also cause the various layers of material to adhere to one another. When the required number of layers has been formed, the resulting article is ejected from the respective female die. One or more of the feeding devices is movable to an inoperative position in which it is unable to feed the female dies. This movement may be effected while the female dies rotate.
    Type: Grant
    Filed: August 29, 1977
    Date of Patent: September 11, 1979
    Assignee: Wilhelm Fette GmbH
    Inventors: Werner Stuben, Ulrich Zeuschner
  • Patent number: 4153406
    Abstract: The present invention relates to a device used in capsule-making machines which, after the gelatin has cured, strips it off the tapered forming pin. More particularly, the device is a plastic ring having a spring metal split ring insert embedded therein along with an external anti-creep spring to maintain proper dimension of the device.
    Type: Grant
    Filed: April 25, 1978
    Date of Patent: May 8, 1979
    Assignee: AMP Incorporated
    Inventors: Larry E. Dittmann, Wayne L. Millhimes, Glenn A. Steinhauer
  • 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: 4026499
    Abstract: A glass balloon that floats in air. An assembly of glass balloons that form a slab of foam that floats in air. A process for making glass balloons employing: two nested furnaces, pre-heated helium, a moving furnace, and a refrigerated seal-off chamber.
    Type: Grant
    Filed: March 15, 1976
    Date of Patent: May 31, 1977
    Inventor: David Rogers Crosby
  • Patent number: RE30654
    Abstract: The present invention relates to a device used in capsule-making machines which, after the gelatin has cured, strips it off the tapered forming pin. More particularly, the device is a plastic ring having a spring metal split ring insert embedded therein along with an external anti-creep spring to maintain proper dimension of the device.
    Type: Grant
    Filed: October 9, 1979
    Date of Patent: June 23, 1981
    Assignee: AMP Incorporated
    Inventors: Larry E. Dittmann, Wayne L. Millhimes, Glenn A. Steinhauer