In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7828042 | Hot runner magnesium casting system and apparatus A method and apparatus for the casting of metal components is disclosed. The apparatus includes a gooseneck for drawing molten metal from a crucible of hot metal and for forcing the drawn molten metal through the system, a hot runner assembly having a hot runner tip... | 11/09/2010 |
| 7810550 | Heatable metering device for a hot chamber die-casting machine A metering device for a hot chamber die-casting machine includes a casting container attachable to a crucible of the hot chamber die-casting machine, a riser channel in a riser channel area, and a casting piston unit for metered conveying of melt out of the crucible... | 10/12/2010 |
| 7810549 | Adaptive and universal hot runner manifold for die casting A method and apparatus for the casting of metal components is disclosed. The apparatus includes a plunger for drawing molten metal from a crucible of hot metal and for forcing the drawn molten metal through the system, a hot runner assembly having a nozzle tip posit... | 10/12/2010 |
| 7296611 | Method and apparatus for manufacturing metallic parts by die casting An injection molding apparatus includes a melt furnace and a metal supply system located in the melt furnace. The metal supply system includes a pump. The injection molding apparatus also includes a first metal inlet from the melt furnace to the metal supply system ... | 11/20/2007 |
| 7278464 | Control pin A control pin for controlling the flow of liquid metal in a casting process includes an elongate body member, the body member being made at least partially of a composite ceramic material that includes a fibrous reinforcing material embedded within a ceramic matrix,... | 10/09/2007 |
| 7252494 | Mold-closing device for an injection molding machine used for processing plastic materials Disclosed is a mold-closing device for an injection molding machine used for processing plastic materials, in which the mold supports accommodating an injection mold therebetween and a support element (13) for a mold-closing mechanism (C) are mounted on the m... | 08/07/2007 |
| 7246649 | Diecast machine A diecast machine comprises: a sleeve extending in the vertical direction; a plunger moving upward in the vertical direction inside the sleeve; a mold disposed above an upper side of the sleeve; a case member constituted of a nonconductive member, which covers at le... | 07/24/2007 |
| 7225855 | Motor drive injection unit, die cast machine having the unit, and motor drive injection method In a motor drive injection unit and a motor drive injection method, which can obtain an injection speed suitable for a molding material having fast solidifying speed as well as can securely carry out pressure keeping for a predetermined period of time while making a... | 06/05/2007 |
| 7165599 | Melting and feeding method and apparatus of metallic material in metal molding machine In a metal molding machine provided having a tilt to a clamping device with an injection unit which is constituted by a liquid metallic material reservoir in which a cylinder having a nozzle portion at the tip portion equipped with a heating device at the outer peri... | 01/23/2007 |
| 7150308 | Method and apparatus for manufacturing metallic parts by die casting An injection molding apparatus includes a melt furnace and a metal supply system located in the melt furnace. The metal supply system includes a pump. The injection molding apparatus also includes a first metal inlet from the melt furnace to the metal supply system ... | 12/19/2006 |
| 7137435 | Enhanced cold chamber die casting molding machine An injection apparatus in a cold chamber die casting molding machine, where a melting device of the injection apparatus includes a billet supplying device for replenishing a light metal material in the form of a billet, a melting cylinder for melting the billet from... | 11/21/2006 |
| 7121321 | Die-casting machine An injection unit for a hot-chamber die-casting machine has an injection portion with a gooseneck and a nozzle adaptor. The injector portion has a base portion at an end of the gooseneck adapted to receive a molten medium supply. A nozzle at an end of the nozzle ada... | 10/17/2006 |
| 7066236 | Injection device for light metal injection molding machine An injection device for a light metal injection molding machine includes a melting device for melting light metal material into molten metal, plunger injection device for carrying out injection of molten metal using a plunger after the molten metal is metered into a... | 06/27/2006 |
| 7036554 | Method and system for casting metal and metal alloys The invention is relating to a system for casting metal, the system comprising a holding furnace (3) containing a base metal melt (2), at least one casting crucible (1) mounted inside the holding furnace (3) and situated at least partly i... | 05/02/2006 |
| 6978823 | Die-casting machine A multiple-slide die-casting machine for casting pieces has a frame. A table is operatively mounted to the frame. A slide guiding mechanism is secured to the table and has slides. Each slide has a die section. The slides are actuatable in a close/open action such th... | 12/27/2005 |
| 6945308 | Hot chamber die casting This assembly is for use with hot chamber die casting. More specifically, the assembly is a fast fill bottom fill gooseneck. The intake port has been moved to the bottom of the gooseneck. The bottom intake port has been fitted with an interior plug. When the plunger... | 09/20/2005 |
| 6945310 | Method and apparatus for manufacturing metallic parts by die casting An injection molding apparatus includes a melt furnace and a metal supply system located in the melt furnace. The metal supply system includes a pump. The injection molding apparatus also includes a first metal inlet from the melt furnace to the metal supply system ... | 09/20/2005 |
| 6923244 | Pouring apparatus for castings A pouring apparatus for castings uses separate systems for supplying billets and delivering the semi-molten material, making it possible to readily modify the discharge flows and pressure. A pouring apparatus for castings that comprises solid material supply means f... | 08/02/2005 |
| 6830094 | Device and method for producing metal diecast parts, particularly made of nonferrous metals A device for producing nonferrous metal diecast parts is described in which a hot-duct gate system is disposed in front of mold cavities, by means of which hot-duct gate system, it is possible to guide the hot molten metal closely in front of the mold cavities and t... | 12/14/2004 |
| 6793000 | Hot chamber pressurized casting machine and process for operating same and making cast parts therewith A method of operating a hot-chamber diecasting machine is provided in which, after the filling of the mold, a compressional vibration is generated which prevents the molten metal from rapidly solidifying at least in the narrowest cross-section of the feed orifice be... | 09/21/2004 |
| 6761209 | Method of operating a hot-chamber pressure diecasting machine and a pressure diecasting machine A method is described of operating a hot-chamber pressure diecasting machine and a pressure diecasting machine suitable for the implementation of this method, by which a prefilling of the casting system can be carried out before the actual mold filling operation. Du... | 07/13/2004 |
| 6609554 | Multiple-slide die-casting system A multiple-slide die-casting machine (20) is equipped with improved mechanical structure and unique injection control system to improve the quality of molded products, to achieve flash free castings of improved surface finish. The clamping assemblies (52A... | 08/26/2003 |
| 6581670 | Injection unit for a pressure die casting machine A pressing-in unit for a hot-chamber pressure diecasting machine permits an electro-mechanical drive for the casting plunger. In order to absorb the moments of inertia of the drive which occur during the switch-over of the casting plunger drive from the m... | 06/24/2003 |
| 6481489 | Reinforced casting A reinforced casting assembly formed of ferrous metal for use with hot chamber die casting including a gooseneck, nozzle seat and nozzle. Reinforcing members are used to reinforce the casting. The preferred embodiment is reinforcing the gooseneck as this ... | 11/19/2002 |
| 6435260 | Hot-chamber diecasting machine Hot-chamber diecasting machines for processing magnesium melts include a casting vessel, an inductive heating system, and an additional ring inductor in an area of the neck of the casting vessel in order to achieve a heating also in this area. The ring in... | 08/20/2002 |
| 6422851 | Apparatus for fabricating color slide fasteners The method includes the steps of a tape arranging step for arranging a support tape of a slide fastener on a mold having a capacity having a plurality of unit fastening element molding material grooves for molding a plurality of unit fastening elements, a... | 07/23/2002 |
| 6390175 | Hot chamber die-casting machine A hot chamber die-casting machine has drive assemblies in the form of electrical servomotors instead of hydraulic cylinders for driving and pressing a feed bush to the nozzle. The feed rate of the servomotors is adjustable. In order to avoid the influence... | 05/21/2002 |
| 6321826 | Mold closing unit especially for a hot chamber die-casting machine A vertical adjustment device for a mold closing unit of a hot chamber die-casting machine is provided with a shear mechanism. An electrical servomotor is provided as a drive assembly for spreading the shear mechanism apart, with the axis of the servomotor... | 11/27/2001 |
| 6029737 | Sealing and guiding device for the injection piston of a hot chamber pump for corrosive alloys A sealing and guiding device for the injection piston (3) of a hot chamber pump for corrosive alloys made up of a body (1) in which a chamber (6) and an injection cavity (2) therebelow are formed, wherein the piston (3) slides with a vertical reciprocatin... | 02/29/2000 |
| 5983979 | Hot chamber die casting machine for aluminum and its alloys A hot chamber die casting machine for casting aluminum and its alloys includes separated ceramic parts, namely a ceramic injection cylinder constituting a pump body, a ceramic outer sleeve, a ceramic injection pipe, and a metallic or thermet flange avoidi... | 11/16/1999 |
| 5971057 | Injection molding machine and injection molding method An injection molding machine having a simple structure and adapted to quickly produce molded products without significant flaws on the surface is provided. It comprises a plunger being adapted to introduce the molten metal into the cylinder section, a noz... | 10/26/1999 |
| 5960854 | Hot chamber die-casting machine In a hot chamber die-casting machine, inductively-operating heating devices are associated with the mouthpiece area of the casting container and the nozzle. All of these heating devices are operated with medium frequency. The inductors are cooled with air... | 10/05/1999 |
| 5699849 | Hot-chamber diecasting machine In order to improve the compression operation and to produce better products with thin-walled castings, the invention calls for the compression operation to be divided into three phases and controlled by high-dynamic continuous-operation valves which have... | 12/23/1997 |
| 5657812 | Metal-casting apparatus and method Apparatus for casting metals, especially alloys with low melting points, has a melt container which is connected to a mold via a casting line. A standpipe branches off from the casting line in the melt container. The melt is covered by an inert fluid blan... | 08/19/1997 |
| 5638888 | Injection unit for a die casting machine An injection unit for a die casting machine having a fixed platen with a fixed die and a moving platen with a moving die, the moving die and the fixed die meeting on a part line for casting, the fixed die having an injection nozzle seat, and an inclined o... | 06/17/1997 |
| 5632322 | Die casting apparatus for casting small parts from materials that expand when transitioning from the liquid to the solid state The die has first and second die halves, each die half having a plurality of cavities that, when the die halves are in a closed position, align with the cavities in the other die half, thus defining a plurality of voids that define the objects to be forme... | 05/27/1997 |
| 5628358 | Die halves for a die casting machine A die for use with a die casting machine comprised of a left hand die half, a right hand die half, in which the die halves close on a part line, an injection nozzle seat, an injection fluid inlet, a runner and a cavity, the invention comprising a left han... | 05/13/1997 |
| 5385456 | Pump for hot chamber die casting of corrosive light alloys A pump for the hot chamber die casting of corrosive light alloys including a body (2) wherein a cavity (3) is formed in which a piston (4) vertically reciprocates and on whose side wall (5) an opening (11) for the introduction of the molten alloy (1) and ... | 01/31/1995 |
| 5379827 | Die casting machine A die casting machine having a frame comprising two connecting rods, two side platens, a moving platen, connecting rod apertures in said moving platen, a moving platen drive and two dies, wherein one side platen is connected to the two connecting rods, th... | 01/10/1995 |
| 5350007 | Injection apparatus for a hot-chamber die-cast machine An injection apparatus for a hot-chamber die-cast machine including a cylindrical sleeve; a plunger body slidingly movably disposed in the sleeve and having a circumferential groove on an outer cylindrical surface and passages extending from a pressurizin... | 09/27/1994 |