British merchant Peter Durand invented the tin can in 1810.
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| Number | Title | Issue Date |
| 7232303 | Wear plate locking system for casting and molding processes A locking system (12) for a mold (14) includes a first mold half (20), a second mold half (22), and a lock assembly that is coupled to one of the mold halves (20, 22). The lock assembly includes a wear plate (80), that is di... | 06/19/2007 |
| 7156641 | Mold for forming a contact lens and method of preventing formation of small strands of contact lens material during contact lens manufacture This invention provides a mold for forming a contact lens comprising an overflow collector, which causes the overflow reactive mixture to be accumulated, and not to spread out as it would upon the typically flat surface of a prior art mold. This invention further pr... | 01/02/2007 |
| 7156638 | Mold, molding system and molding machine for making ophthalmic devices This invention provides a mold comprising a first mold half which works in conjunction with a second mold half for forming ophthalmic devices wherein said first mold half comprises at least one changeable cassette comprising inserts for forming said ophthalmic devic... | 01/02/2007 |
| 7051290 | Graphical interface for receiving eyeglass prescription information A high volume lens curing system is described. The high volume lens curing system is configured to cure multiple eyeglass lenses in a continuous manner. The lens curing system includes a computer-implemented method configured to collect prescription information, sav... | 05/23/2006 |
| 6973872 | Individual dome molds and baking assembly An assembly for forming multiple individual compound desserts in a predetermined dome shape including a first base sheet having a plurality of dome shaped bowls extending therefrom, each dome shaped bowl being formed with a closed semi-spherical end and an open end.... | 12/13/2005 |
| 6827324 | Baked goods baking kit A baked goods baking kit for making cupcakes, in particular, having hollowed centers which can filled with filling of some sort. The baked goods baking kit includes a baking member having a main wall and also having a plurality of ornamental-shaped cup portions spac... | 12/07/2004 |
| 6793192 | Process of making integral three-dimensional articles, and mold for making such articles An apparatus and method for molding three-dimensional articles having interstitials. The article has elongate elements and interstitials between the elongate elements. The interstitials may extend entirely through the article, or intercept only the periphery of the ... | 09/21/2004 |
| 5871661 | Baking pan assembly for preparing donuts A baking pan assembly comprising a pan grid including a plurality of pan rows and pan columns that each contain at least one circular pan useful for baking doughnuts, and a low fat baking dough composition.... | 02/16/1999 |
| 5690019 | Bread bun mold A baking utensil so shaped as to mold within bread dough baked upon it one or more buns, each with a recess to retain a weiner, bratwurst, frankfurter, processed meat link, hamburger or other cooked meat product.... | 11/25/1997 |
| 5425527 | Apparatus for making edible, hand held containers made of cookie dough An edible, hand held food product that may be used as a container for ice cream and other frozen confections is formed from a shell of baked cookie dough. Unlike traditional wafer ice cream cones, the thickness of the wall of the ice cream cone of the pre... | 06/20/1995 |
| 5393032 | Non-reusable, peel off covered ice tray There is provided an ice tray that includes a body and a laminated cover that has a plastic coat for securing together the body and the cover. The body includes a plurality of individual cavities for receiving liquid therein. Each wall of each cavity has ... | 02/28/1995 |
| 5221542 | Apparatus for making a solid electrolyte holder The invention provides a method and apparatus for making an electrochemical cell solid electrolyte holder. A layer of solid electrolyte powder or its precursor is formed around an externally screw threaded mandrel. The powder is pressed to form the holder... | 06/22/1993 |
| 5207150 | Baking tray apparatus A baking tray includes an upper plate spaced from a lower plate, with the upper plate including a plurality of spaced apertures coaxially aligned with cylindrical recesses of the lower plate. A modification of the invention includes insert structure arran... | 05/04/1993 |
| 5191830 | Baking apparatus for making cup-shaped comestibles A baking apparatus for baking cup-shaped comestibles comprising an upper and lower tray is disclosed. Together the trays form a plurality of baking chambers when the two trays are assembled and locked together. The bottom tray is configured with a plurali... | 03/09/1993 |
| 5167843 | Revetment system and device This revetment system and device maybe employed in controlling any environmental erosion comprising a matrix of interlocking blocks stabilized through a plurality of openings or any other securing device may pass therethrough.... | 12/01/1992 |
| 5139721 | Method and apparatus for forming a precast curb system A method and apparatus for forming a curb section of a predetermined length sub-divided into modules by transverse grooves which give the appearance of shorter blocks and provide for fracturing the curb section at those locations. Each module of the curb ... | 08/18/1992 |
| 5062356 | Cookie baking apparatus An apparatus wherein a pan member includes a perimeter rim and a matrix of variously configured cookie mold members, with an upper cutting edge mounted on the pan member. The pan includes securement loops mounted on the floor of the pan to permit vertical... | 11/05/1991 |
| 4998875 | Mold with slide retainer A multipart mold having a resilient retainer engageable with a pin attached to a mold part to hold the mold part in a desired position relative other mold parts.... | 03/12/1991 |
| 4975041 | Die assembly for die casting a propeller structure A die assembly for die casting a propeller structure, such as a wax propeller pattern. The pattern, which is identical in configuration to a cast metal propeller to be produced, includes a generally cylindrical hub having an outwardly flared end and a plu... | 12/04/1990 |
| 4959006 | Apparatus relating to a preform with geodesic reinforcement ring A mold-core rod combination for producing a plastic preform for forming blow molded plastic bottles which comprises: a neck portion defining an opening; a tubular sidewall portion depending therefrom; and an integral base structure depending from the tubu... | 09/25/1990 |
| 4941642 | Mold construction comprising a plurality of mold portions The invention relates to a negative mold containing a plurality of mold portions which can be detached from each other. It functions in particular for the manufacture of shapes consisting of plastic. The two mold halves enclose a molding chamber receiving... | 07/17/1990 |
| 4931301 | Process for making variously shaped waffle products, especially having a cone or similar shape, for icecreams and foods A process for producing variously shaped waffle products, especially waffle products having a conical or similar shape for icecream and foods comprises a step of introducing batter between dies and counterdies having a high thermal conductivity, cooking b... | 06/05/1990 |
| 4899976 | Ice cube tray There is provided an ice tray and ice cubes formed therein in which the ice cubes contain embossments. The ice cube tray includes a base having a plurality of cavities. Each cavity has a bottom and a plurality of said walls and preferably the bottom has a... | 02/13/1990 |
| 4897032 | Apparatus for making a closure device comprising a hinged cap for a container The closure device provided for a container ending in a neck is of the type comprising a cap (1) with a lid (5) which is hinged thereon. With a view to facilitating the molding operation of the cap and the lid thereof in one single piece, the hinge (6) is a do... | 01/30/1990 |
| 4887790 | Troche mold and dispenser A combination medication mold and dispenser. The medication is poured into a multicompartment tray and solidifies into troches. The tray is made of a flexible plastic which can be bent to release the troches individually. The tray has a cover attached wit... | 12/19/1989 |
| 4867661 | Mold for making annular polymeric articles A mold for making annular polymeric articles comprising a core having an outer contoured surface for placing a workpiece thereon, two half-molds with holes for discharging excess polymer embracing the contoured surface of the core and partially embracing ... | 09/19/1989 |
| 4836495 | Retainer mold for forming foamed automotive articles A retainer mold for forming foamed automotive articles, particularly instrument panels, after a thin vinyl skin shell has been mounted in the mold. The mold includes a plurality of die block assemblies mounted in recesses formed in a surface of the mold c... | 06/06/1989 |
| 4822270 | Device for forming of thermoplastic products equipped with undercuts Apparatus for molding a thermoplastic tubular product such as a bushing having an internally threaded major diameter portion and an integral truncated minor diameter portion. A mold provided with a mold shell which jointly with a two-part mold core define... | 04/18/1989 |
| 4822553 | Apparatus and method for thermoforming a plastic article having an undercut The present invention concerns an apparatus and method for thermoforming a plastic article from a sheet of plastic material heated to a predetermined forming temperature. The apparatus includes a mold having forming surfaces defining a forming cavity gene... | 04/18/1989 |
| 4812116 | Mold for making an aseptic vial and cap The present invention relates to apparatus form making a vial and cap. A mold for forming the vial and cap and means for seating the cap on the vial prior to ejecting the vial from the mold is provided and includes a frame for the mold, a first mold half ... | 03/14/1989 |
| 4812323 | Method for preparing a cup-shaped cookie A cookie having a cupped shape facilitating placement of a scoop of ice cream or other confectionary substance therein is disclosed. The cookie is prepared by applying a differential cooking environment wherein the upper mold receives a lesser quantity of... | 03/14/1989 |
| 4795329 | Apparatus for injection molding tire treads A viscoelastic fluid molding material (50) is injected into a tire tread cavity (32) between the mold (10) and an inflatable tread supporting body (30). The clearance distance (A) between the mold (10) and the inflatable tread supporting body (30) is vari... | 01/03/1989 |
| 4789324 | Molded optic for an intraocular lens An optic for an intraocular lens with finished, molded radii on the anterior and posterior edges of the peripheral surface of the optic. The optic has a thin central optical zone and a surrounding annular ring having sufficient material to support haptics... | 12/06/1988 |
| 4787596 | Mold for forming plastic Luer nuts A mold for the formation of plastic Luer nuts having a polygonal internal cross-section. The mold includes both movable and fixed cavity sections, so that a non-round threaded core can be unscrewed from within the Luer nut.... | 11/29/1988 |
| 4753413 | Dies for making gooseneck or "J-tube" A die, in which is to be formed a hollow article having a part-circular portion, such as a "J-tube", includes two opposed die blocks each formed with die cavities which together form the article, and a part-circular core which is positioned within the cav... | 06/28/1988 |
| 4749345 | Mold for airspring rubber membrane A method of manufacturing a beadless flexible member for an airspring having a fully molded non-tubular shape. An axially segmented mold with tapered circular end bores is used with conically tapered end plugs which sealingly compress an uncured preform o... | 06/07/1988 |
| 4740344 | Method for the production of heat and/or fluid exchangers that contain tubes The invention comprises a method and apparatus wherein an insert, preferably made of plastic and preferably allowing a melt-on bonding with the tubes and whose floor has a traversing opening for each tube, is inserted into the first part of the injection ... | 04/26/1988 |
| 4731014 | Rear opening mold A mold, typically an injection mold, comprises a cavity member and a core member relatively movable between open and closed positions to define a first parting line and a molding chamber between the core and cavity members in the closed position. A sprue ... | 03/15/1988 |
| 4711425 | Rotary molding system A mold for use in a rotary molder in molding the base or egg white portion of a molded product simulating a section of hard boiled egg includes a curved plate adapted for attachment to the rotary molder, the curved plate containing at least one depression... | 12/08/1987 |
| 4708614 | Injection molds for the manufacture of composite bodies An apparatus for molding three concentric plastic materials into a composite body in which the mold includes a pair of molding blocks having reduced ends which define an inner cylindrical cavity into which a first material may be injected, a pair of tubul... | 11/24/1987 |