Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 6732992 | Mold for producing silicon ingot and method for fabricating the same A mold for producing a silicon ingot having a layered structure comprising an inner silica layer containing at least one layer in which a fused silica powder with a particle size of 100 μm or less and a fine fused silica sand with a particle size of 100-300 μm is ... | 05/11/2004 |
| 6464198 | Apparatus for manufacturing workpieces or blocks from meltable materials Apparatus for the producing workpieces and blocks from meltable materials in which a liquid starting material is solidified in a directional manner in a casting mold using a cooling device. For the controlled guiding of the solidification front during coo... | 10/15/2002 |
| 6435257 | Bottom pouring fully dense long ingots Fully dense long ingots are produced by the bottom pouring method and apparatus of the present invention. A solidification sequence is achieved which is conducive to eliminating solidification shrinkage and piping. The set-up of the bottom poured ingot mo... | 08/20/2002 |
| 6378835 | Method for producing silicon ingot having directional solidification structure and apparatus for producing the same A method for producing a silicon ingot having a directional solidification structure comprising the steps of: placing a silicon raw material into a crucible of a melting device constructed by mounting a chill plate on an underfloor heater, mounting a cruc... | 04/30/2002 |
| 6345801 | Mould for molten magnesium and method of producing magnesium ingots This invention relates to an improved mould for casting a standard Magnesium ingot. The mould is constructed so as to minimize the surface area of the molten Magnesium which is exposed to the surrounding air. This significantly reduces the reliance on cos... | 02/12/2002 |
| 6334603 | Mold for producing silicon ingot and method for fabricating the same A mold for producing a silicon ingot having a layered structure comprising an inner silica layer containing at least one layer in which a fused silica powder with a particle size of 100 μm or less and a fine fused silica sand with a particle size of 100-... | 01/01/2002 |
| 5511762 | Consumable form with degradable lining A method of manufacturing an open top, walled member for containing a molten metal, including the steps of forming an inner wall of a mold with a metal sheet and an inner lining covering the sheet, wherein the inner wall defines an inside surface of the w... | 04/30/1996 |
| 5505893 | Method for manufacturing and repairing molten metal containment vessels A method of manufacturing an open top, walled member for containing a molten metal, especially a flowing molten metal or reconstructing a worn or damaged member. The method includes the step of forming the inner walls of a mold which define the inner surf... | 04/09/1996 |
| 5482248 | Mold for manufacturing metal containment vessels A mold for forming an open top, walled member having side walls and a bottom surface for containing a molten metal. The mold including an inner screen having a plurality of openings having inner side walls and a bottom surface. The mold further includes a... | 01/09/1996 |
| 5232042 | Mold for casting metal ingot sows and method A mold for casting metal ingot sows having an aspect ratio of at least 4:1. The mold comprises a bottom wall from which a side wall extends upwardly and outwardly and from which heat transfer structure extends downwardly for transferring heat away from th... | 08/03/1993 |
| 5019455 | Sow mold and sow ingot A mold for the casting of aluminum sow ingots includes a mold box having a bottom wall and side walls that define a generally rectangular mold cavity. The bottom wall includes a central raised longitudinally extending protrusion and side longitudinally ex... | 05/28/1991 |
| 4749429 | Process of mounting clay rope on cardboard A sealing structure is disposed between a metal-casting ingot mold bottom portion and a bottom plate to prevent the leakage of molten steel between the mold and plate. A clay rope disposed in a closed configuration corresponding to the bottom of the ingot... | 06/07/1988 |
| 4747739 | Ingot mold and method An ingot mold provided with means affording stress relief thereto for the ingot pouring operation, while maintaining the mold in condition to aid in preventing metal leakage therefrom during the ingot pouring operation and subsequent cooling of the ingot,... | 05/31/1988 |
| 4683937 | Ingot mold and method of producing same A process for casting ingot molds wherein a smooth, rigidized insulative board is used to form the as cast bottom surface of the ingot mold to produce a smooth flat surface which does not require machining and to permit slow cooling and solidification so ... | 08/04/1987 |
| 4664354 | Reinforced ingot mold Bosses project from the outer surface of the ingot mold and are arranged in a planar zone, each of the bosses contains a channel that has slidably positioned therein an anchor which is projected beyond the outer surface of each boss into each boss. The pr... | 05/12/1987 |
| 4635896 | Method of sealing a joint between an ingot mold and a stool and resulting assembly The space between the open bottom mold and the supporting stool used for casting ingots is sealed by placing a thin wall steel tube between the mold and the stool. The weight of the mold partially collapses the tube causing the surfaces of the tube to con... | 01/13/1987 |
| 4465117 | Ingot mold shields An ingot mold with mold wall and stool shields and the method of installing the mold wall and stool shields to the ingot mold and stoll. The mold wall shield comprises at least two portions connected by a bend. The mold wall shield and the stool shield ca... | 08/14/1984 |
| 4416440 | Ingot mold and method An ingot mold provided with means affording stress relief thereto for the ingot pouring operation, while maintaining the mold in condition to aid in preventing metal leakage therefrom during the ingot pouring operation and subsequent cooling of the ingot,... | 11/22/1983 |
| 4382576 | Ingot mold This invention relates to an improved ingot mold. The only alteration in design involves the outside surface of the ingot mold. The invention involves recesses cast or cut into the outside surface of ingot molds for the specific purpose of accommodating s... | 05/10/1983 |
| 4369830 | Sealing joints in moulds A method of sealing a joint between component parts of a metal mould for metal casting comprises applying in the area where the seal is desired an elongated sealing element and a compressible cover separating the sealing element from each of the surfaces ... | 01/25/1983 |
| 4358084 | Sectional ingot mold A sectional ingot mold formed of a plurality of side wall sections which when assembled define at least the side periphery of a mold cavity, with means coacting on the side wall sections for coupling the wall sections together into an integral unitary ing... | 11/09/1982 |
| 4351098 | Method for repairing and reinforcing cast iron molds This invention relates to a method for reinforcing and repairing cast iron molds by surrounding the mold with a closely fitted steel plate or plates, connecting the ends of the steel plate or plates to form a continuous band, attaching the continuous band... | 09/28/1982 |
| 4333630 | Mold bottom and stool protector construction A laminated plate assembly (17) for protecting the mold stool (11) or bottom (125) of an ingot mold (10 or 100) during the pouring of molten metal therein, the assembly comprising spaced-apart plates (20, 21 and 22) secured together by embossments (24) or... | 06/08/1982 |
| 4315972 | Casting whose molding takes place during its recovery by means of filtration-dehydration A casting consisting of a dehydrated agglomerate of particulate material and shaped such that one of its right angle projections is in the form of a trapezoid whose sides include angles greater than 90°, the sides being joined by means of curved surfaces... | 02/16/1982 |
| 4301991 | Ingot mold assembly A vertical, open-ended ingot mold assembly including a mold stool having a relieved portion machined in its base which machined relieved portion has a cavity therein produced by erosion during casting. The useful life of the mold stool is prolonged by pro... | 11/24/1981 |
| 4298180 | Method of repairing steelworks ingot moulds and cast-iron steelworks ingot mould A method of repairing an ingot mould for a steelworks which forms cracks, the method comprising applying a patch plate at both sides of the crack, a series of patch plates being provided in succession in the direction of the length of the crack, reinforce... | 11/03/1981 |
| 4292726 | Ingot mold reconditioning process A process for reconditioning an ingot mold of the type including an elongated cavity area having some predetermined volume and at least one open end for purposes of extending the useful life thereof. In accordance with the reconditioning process, a short ... | 10/06/1981 |
| 4269385 | Sectional ingot mold A sectional ingot mold formed of a plurality of side wall sections which when assembled define at least the side periphery of a mold cavity, with means coacting on the side wall sections for coupling the wall sections together into an integral unitary ing... | 05/26/1981 |
| 4250950 | Mould with roughened surface for casting metals A mold for casting metals is provided with a roughened surface so that, on first contact of the mold with the melt, heat transfer is controlled in such a way that the melt comes into contact only with the peaks of the projections on the mold surface and a... | 02/17/1981 |
| 4120345 | Method for ingot mold repair A method for ingot casting using a vertical, open-ended mold removably positioned on a mold stool, a closed-bottom mold or a plug-bottom mold wherein steel particles are used to fill a relieved portion of the bottom typically resulting from erosion thereo... | 10/17/1978 |
| 4111254 | Metal casting method A high melting temperature metal, casting mold is made of sheet metal embedded in a supporting mass of refractory particles preventing deformation of the sheet metal under the weight of the cast metal and conducting heat from the sheet metal at a rate pre... | 09/05/1978 |
| 4104777 | Repair of bottle top molds In bottle top molds a plug is used as a closure for the opening in the top wall of the molds through which the molten metal is poured. The surface of the opening tends to become eroded by the molten metal flowing into the mold and, as a result, the plug n... | 08/08/1978 |
| 4088295 | Mould for electroslag casting of faceted metal ingots A mould for the electroslag casting of faceted metal ingots has longitudinal flutes on the internal surfaces of at least two walls thereof. The depth of these flutes decreases in a horizontal direction from the middle of the walls to the corners of the mo... | 05/09/1978 |
| 4081020 | Mould assemblies for use in casting molten metals A mould assembly for casting molten metal which comprises a book mould, the upper parts of the walls of the upwardly open cavity of which are lined with hot top lining material and wherein extending across the width of the cavity there are one or more bri... | 03/28/1978 |
| 4078762 | Thin-wall molds for casting elongate ingots A casting chill mold is provided for producing elongate metal ingots having a length to diameter ratio in excess of 10:1 in which the wall thickness of the mold is substantially no greater than that required to enable the walls to withstand the hydrostati... | 03/14/1978 |
| 4054170 | Ingot mold and method for pouring ingots An ingot mold of the bottle-top type and method for its use wherein the primary pipe or shrinkage cavity at the top of the ingot is decreased in length and a solid bridge is formed between the primary and secondary pipe cavities, sealing off the secondary... | 10/18/1977 |
| 4033546 | Shock absorber pad of molded fibers for the drop casting of ingots A shock absorber pad of molded fibers for the drop casting of ingots, comprising a plate of molded fibers having an assembly of truncated cups disposed in files and rows connected by thick webs along their upper edges. The webs are perforated between the ... | 07/05/1977 |
| 4032104 | Ingot casting mould in particular for ferromanganese The invention is concerned with an ingot casting mould closed at both its ends and comprising a first section the bottom wall of which is provided with a refractory layer, intended to receive a molten metal stream, a second section having an inclined bott... | 06/28/1977 |
| 4027844 | Big-end-down ingot mold for casting metal A big-end-down ingot mold has a heat insulating chamber which, when the ratio of the width of the wider walls to that of the narrower walls of the mold is less than 1.7:1, is formed in each of the four side walls and, when the ratio is 1.7:1 or more, is f... | 06/07/1977 |
| 4015814 | Formation of lugs on ingot moulds For forming a lifting lug upon an ingot mould, either as a replacement for a broken-off lug on an existing mould or as a lug on a newly-produced mould formed in the first instance without lugs, a mounting plate is secured to the mould by fasteners driven ... | 04/05/1977 |
