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The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 7393194 | Powdered metal process tooling and method of assembly A tool for use in a powder metal process is disclosed. The tool includes an upper tool and a lower tool. The upper and lower tools may include multiple members for each tool. The lower tool having a predetermined cross sectional profile that continuously expands out... | 07/01/2008 |
| 7306759 | Apparatus for producing fastener assembly with molded internal helical flutes A mold for producing a product with internal flutes is provided. The mold includes a mold body that defines a cavity and a shaft in proximity to the cavity. A pin assembly is receivably engaged in the shaft of the mold body. The pin assembly includes a pin with a gr... | 12/11/2007 |
| 7216842 | Pocket former A pocket former includes an outer barrel having a first rim, a second rim and a frustoconical body portion extending from the first rim to the second rim. A center barrel is connected to the outer barrel and has a proximal lip adjacent the first rim of the outer bar... | 05/15/2007 |
| 7192548 | Mold for injection molding of a flexible tube and injection molding method The invention concerns in particular a mold for injection molding of a flexible tube, said mold comprising as molding tools, a nozzle receptacle, an impression and a core, housed in a stack of plates. The invention is characterized in that said molding tools have pa... | 03/20/2007 |
| 7157037 | Apparatus for making threaded articles in a plastic injection molding process A Bi-directional rack assembly that rotates one column of threaded cores and unscrews threaded closures while moving in the forward direction. The Bi-directional rack then mechanically changes position to engage an adjacent column of rotating threaded cores and at t... | 01/02/2007 |
| 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 |
| 7101168 | Releasing undercut moulded containers after a thermoforming process The invention relates to a device for forming a number of thin-walled objects by means of a blow-moulding process from a layer of material which is deformable when heated, comprising: a lower mould with cavities (6) arranged therein, wherein the shape of each... | 09/05/2006 |
| 6848887 | Turbofan and mold thereof Disclosed is a turbofan which includes a hub coupled with a rotational shaft of a driving device, a plurality of blades installed at a circumference of the hub radially, and a shroud at an opposite side to the hub so as to be coupled with a plurality of the blades w... | 02/01/2005 |
| 6767494 | Method and apparatus for injection molding a threaded syringe plunger rod A plunger rod for a syringe in is of integrally injection molded plastic construction having an elongated body with a coaxial end portion. An external thread extends around the end portion for threaded receipt into a plunger tip that is slidably received in a syring... | 07/27/2004 |
| 6761346 | Grip for a portable hand-guided working tool and molding same A mold for a plastic grip of a portable tool has two halves with depressions forming the negative. The base body has a top grip extending, when mounted, across the topside of the housing perpendicularly to a longitudinal axis of the tool and a lateral grip connected... | 07/13/2004 |
| 6736628 | Device for manufacturing plastic items particularly caps for closing containers A device for manufacturing, in particular, plastic caps for closing containers, comprising molding units, each of which is composed of a male mold part and of a female mold part. The male mold part has a punch which is directly provided with compressed air which exi... | 05/18/2004 |
| 6682336 | Apparatus for injection molding plastic helical gears A helical gear is disclosed that is formed by an injection molding process in which the mold cavity is formed of mirror finished hardened stainless steel. The helical gear is disclosed in a gear box that entirely encase the gears, and may be integral with... | 01/27/2004 |
| 6663347 | Cast titanium compressor wheel A compressor wheel is re-designed to permit die inserts (20), which occupy the air passage and define the blades (4, 5) during a process of forming a wax pattern (21) of a compressor wheel, to be pulled without being impeded by the blades. This modified b... | 12/16/2003 |
| 6663810 | Method for injection molding helical and straight gear A helical gear is disclosed that is formed by an injection molding process in which the mold cavity is formed of mirror finished hardened stainless steel. The helical gear is disclosed in a gear box that entirely encase the gears, and may be integral with... | 12/16/2003 |
| 6623265 | Mould for the manufacture of a fan having hub and a plurality of helical blades extending from the hub A mold for the manufacture of a fan having a hub and a plurality of helical blades extending from the hub. The mold cavity is designed with a specific shape to produce the helical blades of the fan. The mold is comprised of two mold parts. At least one of... | 09/23/2003 |
| 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 |
| 6592797 | Method and apparatus to reduce galling in a mold device The invention generally discloses an apparatus and method for removing threaded, molded articles from an injection mold. A cam system and linear drive/following gear mechanism engages a finely resolved retraction of a threaded mold core, under substantial... | 07/15/2003 |
| 6506330 | Apparatus and method for molding plastic closures A molding apparatus and method of injection, compression or otherwise molding a closure having projections extending inwardly from a skirt of the closure includes a plurality of slides for movement obliquely with respect to an inner mold core. A ring cont... | 01/14/2003 |
| 6460601 | Method of producing internal screw threads, especially in metals or their alloys A method of producing internal screw threads, especially in metals or their alloys and preferably in high strength alloys as are used, inter alia, in dental prosthetics, especially employing the casting technique. Initially an externally threaded pin is p... | 10/08/2002 |
| 6426030 | Method of making a molded internally threaded closure A method of making a closure for a container is accomplished by providing a unitary mold with a mold cavity therein having vertically extending ribs and a rotatable and linearly movable threaded core element is received within the cavity. A formable plast... | 07/30/2002 |
| 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 |
| 6355201 | Tamper-indicating closure with resilient locking projections A method for manufacturing a tamper-indicating closure having a plurality of resilient flexible projections bent upwardly and radially inwardly at a predetermined radius of curvature. The first step in the method includes providing a mold assembly compris... | 03/12/2002 |
| 6247912 | Powder molding device for forming spiral bevel gear A spiral bevel gear having right and left tooth flanks having such a small pitch angle that either right or left ones are not seen in plan from the apex side of cone is molded by a powder molding device so as not to interfere with a die of the device when... | 06/19/2001 |
| 6241931 | Threaded lid injection mold release Apparatus and a method for injection molding large container lids of the type having threads for screwing the lids onto and off large containers. The apparatus includes an injection mold having a cavity mold portion and a core mold portion which together ... | 06/05/2001 |
| 6224802 | Method of manufacturing tamer-indicating closure A tamper-indicating closure of integrally molded plastic construction that includes a base wall having a peripheral skirt with internal threads for engaging external threads on the finish of a container. A tamper-indicating band is connected to the lower ... | 05/01/2001 |
| 6193921 | Method of making container lid with tamper evident slip band An innovative container lid having an integrally formed tamper evident band that goes through a series of changes or metamorphoses during the manufacturing and application process. The tamper evident band is attached to the lid at weak points on dogs form... | 02/27/2001 |
| 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 |
| 6099785 | Method for injection molding plastic closures An injection molding apparatus and method of injection molding a closure having projections extending inwardly from a skirt of the closure includes a plurality of slides for movement obliquely with respect to an inner mold core. A ring contacts the closur... | 08/08/2000 |
| 6083072 | Snowswirl An apparatus for creating freestanding columns of compressible substances such as snow and sand. These freestanding columns can then be sculpted into any desired shape. The apparatus is placed on level ground, filled with the compressible substance after ... | 07/04/2000 |
| 5980800 | Method for making a bracket of a brake lever A method uses a mold for making a bracket of a brake lever device. The mold includes a mold cavity and a stem and a block extended inward of the mold cavity for forming the aperture and the orifice of a band of the bracket. A material is then injected int... | 11/09/1999 |
| 5935292 | Annealing mold and retainer for making a fiber optic current sensor An annealing mold and fiber retaining device includes a fiber holding plate having fiber channels and an annealing insert. Retainers are provided for attachment to the plate to retain fibers in the channels. After annealing, the annealing insert is replac... | 08/10/1999 |
| 5837182 | Method of molding synthetic resin screws A process of molding a synthetic resin screw includes upper mold members 2 and 4, lower mold members 3 and 5, and four sets of slide cores 2a, 4a, 3a and 5a supported by the respective mold members and withdrawable in directions parallel to a parting plan... | 11/17/1998 |
| 5833912 | Method of injection molding a container A method of injection molding a container having a body and an upper opening surrounding a neck of a container produces a container in which a diameter of the body is greater than the diameter of the neck. The method includes injecting plastic or other ap... | 11/10/1998 |
| 5820807 | Staged, sequentially separated injection mold method for forming container closures A staged, sequentially separated injection molding apparatus for forming a molded container closure includes a mold base portion, a plurality of concentric, separable telescopic mold elements, and an opening therein defined by one of the base portion and ... | 10/13/1998 |
| 5798074 | Process for forming a threaded molded plastic article Apparatus includes a female mold and a mold core cooperating with the female mold to form a mold cavity therebetween in the mold closed position for the formation of a threaded, mold article therein. A movable, rotatable stripper ring is provided over the... | 08/25/1998 |
| 5788911 | Method of manufacturing inner gear and method of manufacturing cylindrical product A method of manufacturing the cylindrical product includes the steps of inserting a first cylindrical mold into a hole at the center of a second cylindrical mold and engaging a toothed portion on the first cylindrical mold with a spiral groove on the seco... | 08/04/1998 |
| 5738885 | Die assembly for molding cylindrical body and cylindrical body produced using same A molding die assembly includes an outer molding die which forms an outer peripheral surface of a cylindrical mold, and, an inner molding die which forms an inner peripheral surface of the cylindrical mold, wherein the outer molding die is comprised of a ... | 04/14/1998 |
| 5702736 | Assembly for manufacturing a piston from plastic material An assembly for manufacturing a plastic piston using a first mold and a second mold, each mold having an axial recess, centering element, core element and contact face. The second mold is movable toward and away from the first mold and can be connected to... | 12/30/1997 |
| 5660758 | Mold apparatus for manufacturing a plastic article with interrupted interior threads for securing a heat sink to a heat generating member A article with interior interrupted threads and a mold apparatus for manufacturing the same is provided. The molded article includes an aperture positioned completely therethrough as defined by an inner wall. The inner aperture wall carries a series of th... | 08/26/1997 |
| 5630977 | Injection molding method and system with expandable cavity element An injection molding apparatus method and system for molding a plastic article having inward or outward projections on the exterior surface. The injection mold has a first and second mold part adapted to move between a closed, molding position and an open... | 05/20/1997 |
