Processes And Molds For Making Capsules Patents (Class 264/DIG37)
  • 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: 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: 5700492
    Abstract: A rotary-type tabletting machine with lubricant spraying means, wherein a turn table has plural penetrated holes comprising dies provided at fixed intervals in a ring-like arrangement, each hole is provided with a pair of punches above and under the hole, each pair of punches is rotated together with the turn table and execute piston operation so that tablets are continuously produced by compressing pharmaceutical material filled in the die. The rotary-type tabletting machine is provided with a spraying chamber with an upper open end for inserting an upper punch and enclosing the die when the turn table moves to a rotation position which is after a rotation position where a molded table is discharged and before a rotation position where pharmaceutical material is filled in the die. A spray connected with the spraying chamber sprays lubricant in the spraying chamber, and pulsating air generating means connected with the spraying chamber diffuses. The lubricant sprayed in the spraying chamber.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: December 23, 1997
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Kiyoshi Morimoto, Yasushi Watanabe, Yoshika Sanada, Teiichi Miwa, Tomoaki Masada
  • 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: 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: 4993137
    Abstract: A method for manufacturing capsules causes the solution of thermo-gelling material to gelatinize once, and then drys the gel. Therefore the process of manufacturing capsules is less affected by drying conditions, thus providing capsules of uniform wall thickness without wrinkle. In the apparatus, circulating capsule pins are dipped in the solution of thermo-gelling material, thus the solution adheres to the pins. The pins are rotated upside down, thus thickness of the solution adhering to the pins becoming 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 gelatinized. The thus-formed gel is dried through a drying device, and the dried gel, i.e. capsules, is removed from capsule pins.
    Type: Grant
    Filed: December 13, 1989
    Date of Patent: February 19, 1991
    Assignee: Shin-Etsu Chemicals Co., Ltd.
    Inventors: Hiroaki Muto, Yuichi Nishiyama, Toru Chiba, Kiyoshi Araume
  • 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: 4705658
    Abstract: A method and apparatus for drying gelatin in the manufacture of hard shell gelatin capsules. Pins on pin bars are dipped into the liquid gelatin and the pins are then irradiated with microwave energy until the gelatin dries. Thereafter, the pins are gradually cooled to ambient temperature and the gelatin capsule halves are then stripped from the pins in the conventional fashion.
    Type: Grant
    Filed: April 7, 1986
    Date of Patent: November 10, 1987
    Assignee: Capsule Technology International, Ltd.
    Inventor: Stephen Lukas
  • Patent number: 4647418
    Abstract: A process for the manufacture of glass fiber-reinforced polyester products is disclosed. A ready-to-mold resin and reinforcement composite is prepared using an initiator which has been microencapsulated in order to prevent initiator-induced cross-linking of the resin reactants. The initiator is released during the molding of the composite by rupture of the microcapsules due to internal vapor pressure developed at a preselected molding temperature. The encapsulation of the initiator provides improved homogeneity and increased flowability of the composites during molding, and enables the provision of molded polyester products having higher degrees of cure and more defect-free finish surfaces.
    Type: Grant
    Filed: February 15, 1985
    Date of Patent: March 3, 1987
    Inventor: John R. McDougal
  • Patent number: 4624814
    Abstract: A process for the manufacture of glass fiber-reinforced polyester products is disclosed. A ready-to-mold resin and reinforcement composite is prepared using an initiator which has been microencapsulated in order to prevent initiator-induced cross-linking of the resin reactants. The initiator is released during the molding of the composite by rupture of the microcapsules due to internal vapor pressure developed at a preselected molding temperature. The encapsulation of the initiator provides improved homogeneity and increased flowability of the composites during molding, and enables the provision of molded polyester products having higher degrees of cure and more defect-free finish surfaces.
    Type: Grant
    Filed: February 15, 1985
    Date of Patent: November 25, 1986
    Inventor: John R. McDougal
  • Patent number: 4215513
    Abstract: A field transplant system including a machine for sequentially forming groups of polymerized soil plugs having seed receiving recesses in one end thereof and supported on a carrier, and in certain cases interconnected by strips, the carrier being used to transport the soil plugs through a seeding station and then to a germination station and then to a growing station either in the flat or on a plant turning machine in a greenhouse to grow the germinated seeds to transplant size, and then using the carrier to transport the soil plugs with the transplants growing therein to the field for transplanting by an automatic transplanter; several forms of soil plugs are disclosed, and several methods for supplying seeds to the soil plugs are disclosed, as well as an improved method of mounting a mat of soil plugs on the cylinder of a plant turning machine.
    Type: Grant
    Filed: July 28, 1978
    Date of Patent: August 5, 1980
    Assignee: Gravi-Mechanics Co.
    Inventor: Richard R. Dedolph
  • Patent number: 4213273
    Abstract: A field transplant system including a machine for sequentially forming groups of polymerized soil plugs having seed receiving recesses in one end thereof and supported on a carrier, and in certain cases interconnected by strips, the carrier being used to transport the soil plugs through a seeding station and then to a germination station and then to a growing station either in the flat or on a plant turning machine in a greenhouse to grow the germinated seeds to transplant size, and then using the carrier to transport the soil plugs with the transplants growing therein to the field for transplanting by an automatic transplanter; several forms of soil plugs are disclosed, and several methods for supplying seeds to the soil plugs are disclosed, as well as an improved method of mounting a mat of soil plugs on the cylinder of a plant turning machine.
    Type: Grant
    Filed: July 28, 1978
    Date of Patent: July 22, 1980
    Assignee: Gravi-Mechanics Co.
    Inventor: Richard R. Dedolph
  • Patent number: 4130072
    Abstract: A field transplant system including a machine for sequentially forming groups of polymerized soil plugs having seed receiving recesses in one end thereof and supported on a carrier, and in certain cases interconnected by strips, the carrier being used to transport the soil plugs through a seeding station and then to a germination station and then to a growing station either in the flat or on a plant turning machine in a greenhouse to grow the germinated seeds to transplant size, and then using the carrier to transport the soil plugs with the transplants growing therein to the field for transplanting by an automatic transplanter; several forms of soil plugs are disclosed, and several methods for supplying seeds to the soil plugs are disclosed, as well as an improved method of mounting a mat of soil plugs on the cylinder of a plant turning machine.
    Type: Grant
    Filed: February 25, 1977
    Date of Patent: December 19, 1978
    Assignee: Gravi-Mechanics Co.
    Inventor: Richard R. Dedolph
  • Patent number: 4026986
    Abstract: Capsule shells for pharmaceutical use are presently made from gelatin. Use of water-soluble starch ethers instead of gelatin facilitates the production of the shells and produces improved shells. Preferred material is 2-hydroxypropyl starch made from high-amylose starch and having about 0.3 to 2.5 hydroxypropyl groups per glucose unit of the starch.
    Type: Grant
    Filed: May 22, 1975
    Date of Patent: May 31, 1977
    Assignee: The Dow Chemical Company
    Inventors: Jimmie Duane Christen, Wen-Jiu Cheng
  • Patent number: 4001211
    Abstract: Improved thermogelling methyl cellulose ether compositions for use in preparing pharmaceutical capsules by the pin dip coating process are prepared by blending the properties of water soluble methyl and C.sub.2 -C.sub.3 hydroxyalkyl cellulose ethers to achieve an essentially Newtonian dip coating solution and a rapid high thermal gel yield strength. These properties require a cellulose ether with a relatively narrow molecular weight distribution. Blends of low viscosity methyl cellulose and hydroxypropylmethyl cellulose provide particularly suitable dip solution properties, gel yield strength, and capsule dissolution rates.
    Type: Grant
    Filed: October 1, 1975
    Date of Patent: January 4, 1977
    Assignee: The Dow Chemical Company
    Inventor: Nitis Sarkar