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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 |
| 7275407 | Process for producing rotationally symmetrical components A process for producing a hollow monoblock shaft from a pipe, the pipe initially having a constant diameter and a constant wall thickness, and the monoblock component including at least one area of its length being of a smaller outside diameter and a greater wall th... | 10/02/2007 |
| 7107682 | Method for manufacturing tubes and profiles The invention relates to a method for manufacturing tubes and profiles with variable wall thickness over the length. The method comprises the steps of flexible rolling of continuous material strip with variable thickness in the longitudinal direction of the strip ma... | 09/19/2006 |
| 7004865 | Tensioning means for traction mechanisms, especially belt tensioning means A belt tensioning device for traction mechanisms includes a receiving and mounting housing, a pulley carrier pivotally connected to the receiving and mounting housing, a bearing supporting the pulley carrier relative to the receiving and mounting housing, and a spri... | 02/28/2006 |
| 6939418 | Process for the thermomechanical treatment of steel A process for thermomechanical treatment of steel for torsionally-strained spring elements, the initial material being heated with a heating rate of at least 50 K/s and austenitized, and then, being formed in at least one forming step with the formed product being q... | 09/06/2005 |
| 6808193 | Wheel suspension A wheel suspension with a wheel-guiding strut in provided which includes a helical compression spring, a shock absorber, and a suspension arm, and which is connected to a body and to a wheel. The helical compression spring is preferably made such that it at least pa... | 10/26/2004 |
| 6662616 | Method and device for flexibly rolling a metal band A method and a device for flexibly rolling a metal band by guiding the metal band through a roll gap formed between a first working roll and a second working roll, and by varying the size of the roll gap in such a way that band sections with a greater ban... | 12/16/2003 |
| 6536256 | Method and device for forming components from billets of a flexibly rolled metal band A device for forming components from billets having a thickness profile which is essentially symmetric to the central plane of the billet, i.e., the billet contains a thickness transition on both sides, and wherein the thickness transitions on both sided ... | 03/25/2003 |
| 6497010 | Spring band clamp block A spring band clamp block formed of a plurality of spring band clamps (1), each of which has a spring band (2) and two projecting tensioning ends (3, 4), and which are detachably joined to one another by means of a fastener. The spring band clamp block ca... | 12/24/2002 |
| 6458226 | Process for the thermomechanical treatment of steel A process for thermomechanical treatment of steel for torsionally-strained spring elements, the initial material being heated with a heating rate of at least 50 K/s and austenitized, and then, being formed in at least one forming step with the formed prod... | 10/01/2002 |
| 6336349 | Method for the flexible rolling of a metallic strip A method for the flexible rolling of a metallic strip in which, during the rolling procedure, the metallic strip is lead through a roll gap which is formed between two working rolls, and during the rolling operation, the roll gap is deliberately changed i... | 01/08/2002 |
| 6336350 | Method for the flexible rolling of a metallic strip A method for the flexible rolling of a metallic band wherein, during the rolling procedure, the metallic strip is lead through a roll gap which is formed between two working rolls and which is set so that, over the length of the metallic strip, strip sect... | 01/08/2002 |
| 6311965 | Stabilizer for motor vehicle Stabilizer (1) for motor vehicles which has a toroidal cross section, and which is formed of several stabilizer sections that, together, create a U-shape having a pair of U-legs (2) connected by a U-back (3) via arcuately shaped transitional shoulder area... | 11/06/2001 |
| 6196530 | Method of manufacturing stabilizer for motor vehicles Stabilizer (1) for motor vehicles which has a toroidal cross section, and which is formed of several stabilizer sections that, together, create a U-shape having a pair of U-legs (2) connected by a U-back (3) via arcuately shaped transitional shoulder area... | 03/06/2001 |
| 6186180 | Plug-in connector A plug-in connector, especially for hose connections and for use in motor vehicles, including a receptacle and a plug. The receptacle may be provided with an insertion opening for receiving the plug and a groove for retaining at least one locking spring w... | 02/13/2001 |
| 6035686 | Method and installation for producing biconical wire A method and an installation for producing biconical wire, i.e., wire with repeating cylindrical and conical wire sections from a cylindrical starting material, in particular for producing helical compression springs inexpensively by using hot forming to ... | 03/14/2000 |
| 5772549 | Belt tensioning device The invention relates to belt tensioning device (1) with a receiver housing (2), a roller carrier (3) connected to the receiver housing (2), a spring-loaded bearing means (5) between the receiver housing (2) and the roller carrier (3), and a spring elemen... | 06/30/1998 |
| 5596790 | Hose clamp The invention relates to a hose clamp (1) with a clamp body (3) which encloses a hose end (2) essentially in a ring with overlapping end areas (4,5). In the clamped state, the clamp body has an initial diameter, and using a clamping tool, the clamp body (... | 01/28/1997 |
| 4930192 | Hose clamp In a hose clamp having a resilient clamp body (2) substantially annularly surrounding one hose end and having tightening ends (6, 7) that overlap one another and are bent substantially radially away from the clamp body (2), in which a certain inside diame... | 06/05/1990 |
| 4903985 | Wheel suspension A wheel suspension having a helical spring leg and transverse control with a shock absorber located inside of the spring arm is shown and described. The spring when in its unloaded state has an "S" shaped center line and may be curved in more than one pla... | 02/27/1990 |
| 4836009 | Upper tool support for a stamping machine or the like An upper tool support (4) for a stamping machine or the like has at least two stamping tools (5) adjacently located. Each stamping tool (5) preferably includes a punch (7), a punch support (8) and a retaining nut (9) connecting the punch (7) with the punc... | 06/06/1989 |
| 4831865 | Lower tool support for a stamping machine or the like A lower tool support for a stamping machine or the like having a lower frame and a tool saddle with a saddle plate, movably disposed on the saddle surface of the lower frame, with adjusting devices for the adjustment of the tool saddle in relation to the ... | 05/23/1989 |
| 4827758 | Upper tool support for a stamping machine or the like An upper tool support (4) for a stamping machine or the like has at least one or several stamping tools (5) adjacently located. Each stamping tool (5) has a punch (7) a punch support (8) and a retaining nut (9) connecting the punch (7), with the punch sup... | 05/09/1989 |
| 4773129 | Hose clamp A hose clamp (1) having a spring-loaded clamping body (2) encircling the end of the hose in a generally circular manner, and overlapping clamping ends (6, 7), where in the released state a defined inner diameter -clamping state- exists and the clamping bo... | 09/27/1988 |
| 4685365 | Profile-bar cutter with angled blade movement An angle shear for cutting profile steel has generally parallel and spaced front and rear frame plates fixed relative to each other, at least one fixed blade carried on the front plate, a working slide displaceable vertically between the frame plates, and... | 08/11/1987 |
| 4646604 | Machine tool, especially a punch In a machine tool, especially a punch, having a vertically movable upper tool carrier (1) with at least two punching tools (2) located next to each other and a lower tool carrier (3) with at least two punch matrixes (4) located next to each other, wherein... | 03/03/1987 |
| 4407614 | Apparatus for perforating a workpiece A workpiece such as a steel profile to be perforated at predetermined distances from a longitudinal reference surface thereof is moved past a plurality of perforating tools, such as punching or drill presses, mounted on a main slide and associated with re... | 10/04/1983 |
| 4381169 | Manipulator A support carriage of a manipulator carries an outrigger arm on which is mounted a grab assembly. Upper and lower jaws pivotal on the assembly about respective superposed upper and lower parallel axes can be moved by an actuator head engaging both of thes... | 04/26/1983 |
| 4369907 | Punching and riveting machine A puncher-riveter has a fixed lower part having an upper surface and a vertically displaceable upper part above the lower part and having a lower surface. A hydraulic motor vertically displaces the upper part toward and away from the lower part. A punch h... | 01/25/1983 |
| 4322994 | Shear having U-shaped clips connecting drive and work plates A profile-steel shear usable for cutting or punching profile-steel members has a pair of relatively fixed, spaced-apart, and parallel frame plates flanking a drive plate having a lower end edge engaging the upper end edge of a blade-type work plate. The o... | 04/06/1982 |
| 4267758 | Actuator mount for power shear or punch A metalworking machine such as a punch or shear has a pair of substantially parallel and spaced-apart frame plates which are mounted fixedly relative to each other and which flank a vertically displaceable work slide formed at its upper edge with a T-shap... | 05/19/1981 |
| 4267756 | Holddown for power shear A power shear has a pair of parallel frame plates spaced apart to either side of a fixed blade and a movable blade. The movable blade can be displaced past the fixed blade to shear a workpiece extending across the plane and resting on the fixed blade A ho... | 05/19/1981 |
| 4216905 | Clip-type rail fastener A railroad rail is secured to a support normally constituted by a rail-fastening plate by means of a bolt engaged in this plate and a clip pressed by the bolt downwardly on one side against the plate and on the other side against the flange of the rail. T... | 08/12/1980 |
