Processes And Molds For Making Capsules Patents (Class 264/DIG37)
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Patent number: 6022499Abstract: 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: GrantFiled: September 29, 1997Date of Patent: February 8, 2000Assignee: R.P. Scherer CorporationInventors: Gregory A. Schurig, Bud Bezaire, Michael Ratko, Lawrence A. Baker, Robert Mikalian
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Patent number: 5735105Abstract: 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: GrantFiled: October 2, 1995Date of Patent: April 7, 1998Assignee: R. P. Scherer CorporationInventors: Norman S. Stroud, David J. Walker, Kelvin R. Garnett, Arthur J. Burnett, Anthony J. Wood
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Patent number: 5700492Abstract: 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: GrantFiled: October 31, 1994Date of Patent: December 23, 1997Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Kiyoshi Morimoto, Yasushi Watanabe, Yoshika Sanada, Teiichi Miwa, Tomoaki Masada
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Patent number: 5698155Abstract: 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: GrantFiled: January 24, 1995Date of Patent: December 16, 1997Assignee: GS Technologies, Inc.Inventors: Ralph R. Grosswald, Jeffory B. Anderson, Clair S. Andrew
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Patent number: 5672300Abstract: 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: GrantFiled: August 10, 1992Date of Patent: September 30, 1997Assignee: R. P. Scherer CorporationInventors: Gregory A. Schurig, Bud Bezaire, Michael Ratko, Lawrence A. Baker, Robert Mikalian
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Patent number: 5643594Abstract: 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: GrantFiled: May 3, 1994Date of Patent: July 1, 1997Assignee: The Regents of the University of CaliforniaInventors: Randel E. Dorian, Kent C. Cochrum, Richard David Antanavich
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Patent number: 5246635Abstract: A softgel having a texture on at least a portion of its surface and a process and apparatus for the manufacture thereof.Type: GrantFiled: January 12, 1993Date of Patent: September 21, 1993Assignee: R. P. Scherer CorporationInventors: Michael Ratko, Ovila Bezaire, Robert Morissette, Edward A. Mendelin, deceased, Tony Mendelin, legal representative, Daniel A. Tedder, deceased, John H. Kornegay, legal representative
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Patent number: 4993137Abstract: 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: GrantFiled: December 13, 1989Date of Patent: February 19, 1991Assignee: Shin-Etsu Chemicals Co., Ltd.Inventors: Hiroaki Muto, Yuichi Nishiyama, Toru Chiba, Kiyoshi Araume
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Patent number: 4781567Abstract: 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: GrantFiled: October 28, 1987Date of Patent: November 1, 1988Assignee: Warner-Lambert CompanyInventor: Henry A. Miller, Jr.
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Patent number: 4705658Abstract: 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: GrantFiled: April 7, 1986Date of Patent: November 10, 1987Assignee: Capsule Technology International, Ltd.Inventor: Stephen Lukas
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Patent number: 4647418Abstract: 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: GrantFiled: February 15, 1985Date of Patent: March 3, 1987Inventor: John R. McDougal
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Patent number: 4624814Abstract: 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: GrantFiled: February 15, 1985Date of Patent: November 25, 1986Inventor: John R. McDougal
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Patent number: 4215513Abstract: 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: GrantFiled: July 28, 1978Date of Patent: August 5, 1980Assignee: Gravi-Mechanics Co.Inventor: Richard R. Dedolph
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Patent number: 4213273Abstract: 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: GrantFiled: July 28, 1978Date of Patent: July 22, 1980Assignee: Gravi-Mechanics Co.Inventor: Richard R. Dedolph
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Patent number: 4130072Abstract: 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: GrantFiled: February 25, 1977Date of Patent: December 19, 1978Assignee: Gravi-Mechanics Co.Inventor: Richard R. Dedolph
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Patent number: 4026986Abstract: 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: GrantFiled: May 22, 1975Date of Patent: May 31, 1977Assignee: The Dow Chemical CompanyInventors: Jimmie Duane Christen, Wen-Jiu Cheng
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Patent number: 4001211Abstract: 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: GrantFiled: October 1, 1975Date of Patent: January 4, 1977Assignee: The Dow Chemical CompanyInventor: Nitis Sarkar