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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 7250221 | Method of producing clad metal products A method of producing a clad metal ingot suitable for rolling to form a clad metal sheet, and the clad metal ingot so produced. The method involves providing a solid core ingot having an upper side with a rolling face thereon having cavities extending inwardly into ... | 07/31/2007 |
| 7232015 | Caliper body method of manufacturing caliper body of vehicular disc brake A method of manufacturing the caliper body of a vehicular disc brake by the gravity casting method. The caliper body is used for the vehicular disc brake wherein a pair of frictional pads are disposed opposite to each other with a disc rotor held therebetween. The c... | 06/19/2007 |
| 7122979 | Method and apparatus for selective operation of a hybrid electric vehicle in various driving modes A hybrid electric vehicle and method that stores an upper energy storage limit and a lower energy storage limit for an energy storage system for each of a plurality of predetermined driving modes, determines a currently selected driving mode from the plurality of pr... | 10/17/2006 |
| 6979023 | Die cast sub-frame A pound or number sign shaped (#-shaped) die cast sub-frame includes first and second horizontal members and first and second vertical members. The sub-frame has four arm mounting portions provided at four corners thereof, respectively. The arm mounting portion is a... | 12/27/2005 |
| 5800902 | Metal die cast article with reinforcing insert A stamped, steel insert for use in metal die cast articles. The insert includes first and second interconnected stamped steel insert halves spaced from one another at certain locations to define a void. Openings communicating with the void extend through ... | 09/01/1998 |
| 4947539 | Method of manufacturing rotor assembly structure A method and apparatus for making a rotor assembly for an electric motor wherein the rotor core of the assembly includes a stack of annular laminations having fixed molded annular end rings on opposed faces thereof with a rotor shaft extending through the... | 08/14/1990 |
| 4945814 | Molded composite armor The invention relates to the manufacture of composite metal armour plating comprising ceramic inserts (42) regularly disposed through the thickness and giving reliable, reproducible ballistic efficiency. The ceramic inserts are positioned at regular intervals ... | 08/07/1990 |
| 4890663 | Method for producing a ceramic-coated metallic component A method for producing a metallic component provided with a ceramic lining in a mold includes applying a first ceramic layer to a mold. A sliding layer is applied to the first ceramic layer. A second ceramic layer divided by joints into individual zones i... | 01/02/1990 |
| 4843705 | Method of manufacturing a rotor assembly A method and apparatus for making a rotor assembly for an electric motor wherein the motor core of the assembly includes a stack of annular laminations having fixed molded annular end rings on opposed faces thereof with a rotor shaft extending through the... | 07/04/1989 |
| 4712600 | Production of pistons having a cavity A piston of a light alloy matrix material having a cavity for containing heat insulating air immediately below its head or a cavity for passing cooling oil inside the grooved side wall is manufactured by preforming a precursory member having the shape of ... | 12/15/1987 |
| 4705093 | Method of casting the fiber-reinforced caliper A method of casting a fiber-reinforced caliper wherein inorganic fiber is wound up in a direction parallel to the axis of cylinder around a core conforming approximately to the inside shape of the bridge portion of a caliper, the wound-up fiber is cut off... | 11/10/1987 |
| 4681151 | Method for production of fiber-reinforced metal composite material A method for production of fiber-reinforced metal composite material having high fiber content, wherein a bundle of fiber material is impregnated with water, then this water-impregnated fiber bundle is subjected to compression and freezing to form a high ... | 07/21/1987 |
| 4671336 | Method for manufacturing a fiber reinforcement body for a metal matrix composite A method and an apparatus for manufacturing a fiber reinforcement body which is to be incorporated into a metal matrix in a fabrication technique based on a molten metal infiltration process for producing a metal matrix composite material are disclosed he... | 06/09/1987 |
| 4669523 | Castings and their production process The present invention relates to castings constituted by a metal matrix reinforced by fibres and having outgrowths. Firstly, a reinforcing framework is produced, which is incorporated into the fibrous strengthening member, the complete entity being placed in a... | 06/02/1987 |
| 4633931 | Method of producing fiber-reinforced composite body A method of producing a fiber-reinforced composite material comprising the steps of arranging a fiber shaped article in a cavity of a casting mold; pouring a molten metal acting as a matrix into the cavity and subjecting the molten metal to primary pressu... | 01/06/1987 |
| 4630665 | Bonding aluminum to refractory materials A method for bonding aluminum and aluminum alloys to refractory materials. A body of metal is heated to an elevated temperature at a total pressure above the vapor pressure of aluminum but less than atmospheric pressure. Oxygen partial pressure is maintai... | 12/23/1986 |
| 4574865 | Method of making a finned cast recuperator tube A hollow metallic envelope 10 of a finned cast recuperator tube is cast with preformed interior fins 12 and exterior fins 16 integral therewith. A sand core 30 is formed about the preformed interior fins 12 with portions of the fins 12 protruding outwardl... | 03/11/1986 |
| 4534266 | Composite armour plating The invention relates to composite metal armour comprising ceramic inserts arranged in a regular manner within a metal casting. To ensure that the ceramic inserts are arranged at regular intervals within the metal, each of the inserts is provided with an ... | 08/13/1985 |
| 4508158 | Graphite-metal matrix bearings and methods of manufacturing Methods are disclosed for manufacturing graphite fiber metal matrix bearing materials using liquid metal pressure infiltration to achieve a high degree of intimate wetting, contact and infiltration of a compliant metal between and around graphite (carbon)... | 04/02/1985 |
| 4499661 | Method of fabricating die cast rotor with one piece oil return/rotor shaft securement member A die cast rotor for an electric motor in which an integral tubular oil return/rotor shaft mounting member is sealingly cast-in-place within the body of the rotor. The integral oil return/rotor shaft mounting member is preferably a one-piece impact extrud... | 02/19/1985 |
| 4216816 | Aluminothermic welding of austenitic manganese steel A method of aluminothermic welding of members of austenitic steel containing by weight 10 to 20% manganese, 0.5 to 1.5% carbon and 0 to 5% nickel, and particularly low carbon austenitic steels containing by weight 14 to 17% manganese, 0.5 to 1.5% carbon a... | 08/12/1980 |
| 4112574 | Torsielastic thrust bushing for track chains For inclusion as spacer between first and second axially spaced apart members mounted for limited angulation about a common axis, the first member having a seal recess formed in one face, the second member having an end face opposite the seal recess, the ... | 09/12/1978 |
| 4087903 | Method of attaching components of a dynamoelectric machine A method of attaching a pair of opposite end frames of a dynamoelectric machine to a structural component thereof predeterminately positioned with the end frames for assembly within receiving means respectively provided in the end frames. Molten metal is ... | 05/09/1978 |
| 4023611 | Method of welding pipes onto pressure conveying elements, especially pipe plates, pressure containers and collectors A method of connecting a pipe to a pressure conveying element, especially a pipe plate, a pressure container, and a collector, according to which the pressure conveying element is within the region of its intended connection with the pipe provided with li... | 05/17/1977 |
| 4019670 | Self-balancing positive displacement casting system Improved methods and apparatus for positive displacement casting and/or for positive displacement bonding and, more particularly, for automatically forming, on a continuous, reproducible basis, fusion bonds devoid of structural, electrical and cosmetic de... | 04/26/1977 |
| 3961416 | Method of assembling a dyanamoelectric machine A method of assembling a dynamoelectric machine having a stationary member, a rotatable member, and a pair of means for rotatably supporting the rotatable member within the stationary member. In this method, beams are attached to the stationary member, an... | 06/08/1976 |
