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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 |
| 5168749 | Apparatus and methods for determining balance of a cylindrical vehicle Apparatus and methods for determining balance of a cylindrical vehicle, the pparatus comprising a frame adapted for horizontal disposition, first and second support assemblies mounted on the frame for receiving the vehicle, first and second load cells moun... | 12/08/1992 |
| 4858137 | Determination of the stability of floating structures The stability of floating structures is determined using a plurality of changes in weight distribution and by processing the resulting signals from two inclinometers arranged so as to measure the inclination about two orthongonal non-vertical axes. The in... | 08/15/1989 |
| 4726222 | Center of gravity fixture A fixture for assisting in determining the location of a center of gravity of a torpedo, including a cradle suspended pendulously in a base or support. The cradle has a pair of rollers grooved to receive the torpedo, and provided with means for manually r... | 02/23/1988 |
| 4647928 | Stability indicator for marine vessel A stability indicator for a marine vessel. The indicator continuously determines a GM value for the vessel equal to the square of the vessel's beam length times the square of the vessel's rolling constant divided by the square of the vessel's rolling peri... | 03/03/1987 |
| 4215965 | Apparatus and method for loading a floating vessel with flowable material A water borne barge or other floating vessel is loaded automatically with flowable material from end-to-end with a proper predetermined level of material without dependency on inaccurate human observations. The automatic load-out is terminated with the ve... | 08/05/1980 |
| 3982424 | Apparatus for measuring metacentric height of a ship Apparatus for measuring the metacentric height of a vessel by the use of an electrical signal generator which may be an armature stabilized relative to earth by a pendulus precision gyro and a stator fixed to the vessel to provide alternately polarized si... | 09/28/1976 |
