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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 |
| 6869151 | Knuckle-supported wheelend assembly with improved shaft-hub interface A knuckle-supported wheelend assembly includes a shaft having a contoured peripheral surface portion proximate to an outboard end featuring a minimum radius and a maximum radius, and a hub mounted on the shaft's contoured surface portion via a complementary, contour... | 03/22/2005 |
| 5203874 | Device for securing dies on threading machines The device uses a diaphragm cover between the adapter and the die to lock the die into the adapter. The cover is rotatably mounted onto the adapter and has a polygonal bore that matches the polygonal bore of the adapter. The mandrel of the die has a throa... | 04/20/1993 |
| 4415172 | Friction welding machine having an expanding mandrel backstop assembly An improved mandrel chuck for the backstop assembly of a friction welding machine holds a first interiorly lobed workpiece as a second rotating workpiece is displaced into forceful engagement therewith. The improved chuck comprises a main body portion, an... | 11/15/1983 |
| 4167062 | Dental handpiece A straight dental handpiece has a tubular housing for a motor driven collet mechanism rotatably supported at one end of the housing. The burr receiving collet mechanism is actuated by a pair of diammetrically opposed cams supported for rotational movement... | 09/11/1979 |
