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| Number | Title | Issue Date |
| 7431877 | Linerless closure for carbonated beverage container A plastic closure for sealing a container, the closure having a top portion and a skirt portion depending from the top portion. The closure has an annular sealing rib which extends within the cavity defined by the top portion and the skirt portion. The rib includes ... | 10/07/2008 |
| 7431582 | Molding machine A mold core includes a forming pin having a hollow interior and an end wall. A passage, preferably in the form of a hollow tube, extends into the hollow interior of the forming pin and has an end sealingly secured at a position spaced from the end wall of the formin... | 10/07/2008 |
| 7429170 | Method and machine for compression molding closure shells A compression molding machine, for compression molding a closure shell having a base wall with an opening and in accordance with one aspect of the disclosure, includes a male mold section and a female mold section having associated surfaces that oppose each other to... | 09/30/2008 |
| 7427195 | Device for separating and transporting a sized portion of material in a plant for forming articles by compression moulding A method for separating a portion of extruded material from the continuous strip leaving an extruder, consisting of passing in front of the extrusion nozzle withdrawal means associated with at least one cutting means; said withdrawal means and said at least one cutt... | 09/23/2008 |
| 7407376 | Compression molding apparatus Apparatus for compression molding plastic articles includes a plurality of molds mounted for travel around a first axis. Each mold includes an upper mold section and a lower mold section, with at least one of the upper and lower mold sections being moveable in a non... | 08/05/2008 |
| 7399174 | Method and apparatus for compression molding plastic articles A method and apparatus for compression molding plastic articles include a plurality of tools mounted in opposed pairs with the tools of each pair including opposed first and second actuators that define a mold cavity in which a charge of plastic is compression molde... | 07/15/2008 |
| 7384257 | Device for removing doses of plastic material from an extruder A device for removing doses of plastic material from the outflow orifice of an extruder by means of at least one removal element movable with respect to the extruder and provided with a receptacle for a dose removed from the orifice, the removal element comprising a... | 06/10/2008 |
| 7314366 | Apparatus and method for inverting a stop flange on a tamper-indicating closure An apparatus for inverting the stop flange on a tamper-indicating closure, from an axially outwardly oriented position as molded to an axially inwardly oriented position for use, includes a support base for supporting the closure such that the stop flange as molded ... | 01/01/2008 |
| 7284974 | Apparatus for compression molding articles made of plastics An apparatus for compression molding of articles made of plastics, comprising: molding means; feeding means for feeding doses of plastic material, which are provided with removal elements for removing in succession said doses from an extruder and transferring the do... | 10/23/2007 |
| 7261533 | Method and apparatus for manufacturing dental aligners Embodiments of the invention provide a method and apparatus for manufacturing dental aligners. The system includes a workpiece introduction system having at least one workpiece preparation chamber. The system further has a mold manipulation system, having a mold int... | 08/28/2007 |
| 7261546 | Apparatus for severing mold charges in a compression molding machine An apparatus for severing mold charges of molten plastic exiting an orifice along an orifice axis includes a motor system that provides a rotary output around an axis offset from the orifice axis. A blade arm is eccentrically coupled to the rotary output of the moto... | 08/28/2007 |
| 7247014 | Compression molding machine A compression molding machine includes a support mounted for rotation around an axis and a plurality of angularly spaced molds disposed around the support. Each of the molds includes a first mold segment and a second mold segment. At least one of the mold segments i... | 07/24/2007 |
| 7241129 | Machine for compression molding closure shells A machine for compression molding plastic closures includes a support mounted for rotation around an axis, and a plurality of compression molds on the support at angularly spaced positions around the axis. Each of the molds includes a male mold section and a female ... | 07/10/2007 |
| 7210917 | Two position double injection molding apparatus An apparatus and method for injection molding of molded products including a first cavity chamber for forming a seal liner, with the first cavity chamber having an outer edge, and a second cavity chamber for forming a shell, with the second cavity chamber having a c... | 05/01/2007 |
| 7175409 | Apparatus for forming rolled lips on thermoplastic containers A lip rolling apparatus for open-mouthed stacked thermoplastic containers is disclosed. One particular apparatus includes components for presenting a nested stack of containers having unrolled lips to a rim roller, engaging individual cups on a screw assembly, heati... | 02/13/2007 |
| 7165961 | Compression molding apparatus with quick change molds Compression molding apparatus for molding plastic closures for containers includes a rotary turret having a vertical axis and supporting circumferentially spaced and axially moveable opposing plungers each carrying a compression mold member. Each mold member is atta... | 01/23/2007 |
| 7134866 | Carousel apparatus for manufacturing articles made of plastics by compression molding An apparatus for manufacturing hollow, plastics articles having internal undercuts, comprising at least one compression-molding unit, composed of an upper male mold part comprising a plug and of a lower female mold part aligned, with the male mold part, an actuation... | 11/14/2006 |
| 7059846 | Assembly for compression molding of articles made of plastics An assembly for the compression molding of articles made of plastic material, composed of a main male plug and a complementary male plug which comprise a stem, actuated by an actuation element with a spindle guided in a tubular tang provided with a molding head coop... | 06/13/2006 |
| 7025582 | Apparatus for pressure molding articles made of plastics, such as caps for closing a container and the like An apparatus for compression molding plastic articles, comprising at least one molding unit composed of an upper punch and a lower mold provided with a cavity for molding the articles, the punch and mold being aligned with each other and movable between a spaced pos... | 04/11/2006 |
| 7001168 | Plant for forming predetermined quantities of synthetic material Plant for forming predetermined quantities of synthetic material comprising a rotary turntable carrying on its periphery a plurality of dispensing devices, and means for feeding the material in the molten state to said dispensing devices; the plant also comprises a ... | 02/21/2006 |
| 6887416 | Method and device for compression moulding a closure cap A method and device for the production of a closure cap having a first part (16, 17) and a second part (18), joined together by at least one thinner section (19). The device contains a female mould part (11) and a male mould part (12 | 05/03/2005 |
| 6817276 | Apparatus for forming bridges in tamper-indicating closures A tamper indicating closure comprising a base wall and a peripheral skirt having an internal thread adapted to engage the threads of a container wherein a tamper indicating band is provided on the skirt by a plurality of circumferentially spaced bridges. The band in... | 11/16/2004 |
| 6733269 | Compression mold tool An improved mold tool for use in molding machines comprising a mold tool having a core and a stripper sleeve which move in vertical relation to one another for stripping a threaded molded part, the improvement comprising a race on one of said core or said stripper s... | 05/11/2004 |
| 6718606 | Apparatus for molding and applying liners in caps An apparatus for molding and inserting in caps liners made of plastic material dispensed by an extruder, comprising: a dosage carousel; a molding carousel; an insertion carousel; a cap feeder for feeding the insertion carousel with caps, the carousels being rotatabl... | 04/13/2004 |
| 6609694 | Molded closure and apparatus for making same A molded closure having an auxiliary thread for removal of an incomplete closure from a molding cavity, the molded closure including a helical auxiliary thread projecting inwardly from a cylindrical wall portion of the closure to provide engagement betwee... | 08/26/2003 |
| 6602065 | Apparatus for compression molding plastic closures Apparatus for compression molding plastic closures having a peripheral skirt with an internal thread includes a first mold assembly having a male mold core and a second mold assembly having a female mold cavity. At least one of the first and second mold a... | 08/05/2003 |
| 6599115 | Mold unscrewing mechanism for making threaded articles An unscrewing mechanism for forming threaded components includes at least one rotatable elongate mold core having a threaded portion at one end for molding a threaded component, a stripper plate that is separable from a stationary plate and underlying a c... | 07/29/2003 |
| 6589041 | Apparatus for shaping thermoplastic materials The apparatus for shaping thermoplastic materials, in particular for producing moulded parts with a large height of the moulded part, comprises a suction-pressure bell and a lower part which can be locked to each other by a locking device. Resting on the ... | 07/08/2003 |
| 6585508 | Carousel-type apparatus for manufacturing caps made of plastics by compression molding An apparatus for manufacturing threaded caps comprises a plurality of compression molding assemblies which are arranged on a rotating carousel and comprise an upper male mold half and a lower female mold half. The male mold half comprises a tubular elemen... | 07/01/2003 |
| 6478568 | Method and apparatus for compression molding plastic articles A method and apparatus for compression molding plastic articles such as closures include a plurality of tools mounted in opposed pairs with the tools of each pair including opposed male and female mold sections. The tool pairs are mounted for motion in an... | 11/12/2002 |
| 6450797 | Compact slide actuation mold A molding apparatus has a pair of slide inserts which are laterally movable into and out of engagement with the other mold components. The lateral movement of the slide inserts is provided by a slide mechanism having a driving rack, a pair of drive pinion... | 09/17/2002 |
| 6401587 | Device for producing a scoring line in the cylindrical wall of a plastic cup, particularly of a plastic cup for closing a container, and machine using said device A device for producing a scoring line in the cylindrical wall of a plastic cup, comprising: a mandrel, provided with elements for positioning and retaining a cup applied thereon; a plurality of jaws, an end whereof is articulated to the mandrel so as to o... | 06/11/2002 |
| 6390800 | Apparatus for removing threaded parts from plastic injection molds An apparatus for forming threaded molded parts such as closures for containers having improved means for unthreading the formed part from the mold core. The apparatus includes a cavity part and a core part, the cavity part being rotatable relative to the ... | 05/21/2002 |
| 6368094 | Multi-path compression molding apparatus An apparatus delivers plural molten plastic pellets into cavities for compression molding of the pellets into bottle closures or bottle closure liners. The apparatus is provided for delivering molten plastic pellets from a supply of molten plastic to a pl... | 04/09/2002 |
| 6299428 | Apparatus for compression molding plastic articles A method and apparatus for compression molding plastic articles such as closures include a plurality of tools mounted in opposed pairs with the tools of each pair including opposed male and female mold sections. The tool pairs are mounted for motion in an... | 10/09/2001 |
| 6287106 | Injection mold cavity and dispensing cap manufactured therein An articulated mold cavity is disclosed for injection molding a dispensing cap including a substantially hollow body adapted for attachment to a receptacle. The body includes an open first end shaped and dimensioned for coupling to the receptacle, a side ... | 09/11/2001 |
| 6238202 | Apparatus for ejecting threaded injection molded parts An apparatus and method for ejecting threaded injection molded articles from a mold core by simultaneous application of rotational and translational force. The apparatus has a stripper ring which is rotatable about and movable along its axis. A driver rot... | 05/29/2001 |
| 6126026 | Closure with mold retaining projection A molded closure for use with a container includes a top wall defining a generally planar inner surface and a skirt depending from the top wall generally perpendicular thereto. The skirt includes a container engaging member formed therein. The closure inc... | 10/03/2000 |
| 6123880 | Method for compression molding plastic articles A method for compression molding plastic articles such as closures include a plurality of tools mounted in opposed pairs with the tools of each pair including opposed male and female mold sections. The tool pairs are mounted for motion in an endless path.... | 09/26/2000 |
| 6079973 | Apparatus for molding plastic caps Apparatus for molding plastic caps having inclined tabs integral with the lower edge of the cap skirt and radially inwardly extending ribs integral with the inner surface of the cap skirt. The tabs and ribs are formed by a plurality of blades having reces... | 06/27/2000 |
