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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 |
| 7192034 | Load based suspension motion limiting An articulated loader has an articulated chassis and two A-frames. The points of the A-frames face each other. The articulated chassis includes a front portion and a rear portion. Likewise, there is a front or first A-frame and a rear or second A-frame. The A-frames... | 03/20/2007 |
| 7096971 | Bi-directional drag grader A bi-directional drag grader comprising a rigid overhead support, attachable to a self propelled machine using a common receiver hitch or directly attached, a substantially rectangular rigid and collapsible frame, the frame having a leading edge and trailing edge wi... | 08/29/2006 |
| 7029072 | Modified rumble strip cutter A rumble strip cutting machine having a drum that can be shifted from one side of the machine to the other. The machine includes a piston wheel that imparts an up and down motion to the frame so that rumble strips can be cut at desired intervals as the machine is dr... | 04/18/2006 |
| 7021398 | Box scraper assembly A box scraper attachment is provided for mounting on the boom arms of a skid-steer vehicle or the like. The box scraper attachment includes a main frame having castor wheel assemblies mounted at the forward end thereof. A box scraper is selectively vertically movabl... | 04/04/2006 |
| 6904978 | Slide rail adjustment for grader blade A bearing support arrangement for a grader blade uses short stroke hydraulic cylinders to compensate for wear between slide bearings and slide rails of the grader blade. The cylinders are preferably pressurized by grease and a grease fitting is provided for each cyl... | 06/14/2005 |
| 6648078 | Apparatus for folding over corn stalk stubble and the like The present invention relates to a device which may be mounted to the front of a tractor and which is operative to fold over corn stalks and the like before they engage the front tires of the tractor. The device positions dragging units in front of each o... | 11/18/2003 |
| 4930582 | Road grader attachment A grader attachment is a forward extending triangular truss structure, which extends from a point of pivotal attachment to a tractor to a tandem front wheel support. A blade frame pivotally hangs from the peak of the truss, supporting a cutter blade immed... | 06/05/1990 |
| 4635730 | Grader attachment for a loader Attachment for wheel-mounted loaders comprising a frame releasably connectible to the loader, extending forwardly from the loader in the normal travelling direction thereof and supporting a grader blade for operations such as grading, road maintenance and... | 01/13/1987 |
| 4245707 | Grading and dozing attachment for a tractor A grading and dozing attachment for a tractor including a blade located between the front wheels and the back wheels of the tractor, a carrying frame adapted to fit between the front wheels and the rear wheels of the tractor, the frame having a plurality ... | 01/20/1981 |
| 4213507 | Grading vehicle A grading vehicle including a bridging vehicle chassis between a front axle and its corresponding wheels and a rear vehicle section having at least one axle with corresponding rear wheels, and control equipment mounted on said chassis, which equipment pro... | 07/22/1980 |
| 4071090 | Motorgrader implement mounting arrangement An implement mounting arrangement is disclosed which is operatively associated with a longitudinally oriented main frame of a vehicle such as a motor grader. The implement mounting arrangement includes a base frame assembly having an inner end and an oute... | 01/31/1978 |
| 3983945 | Clamping mechanism for motor grader moldboards A bracket is carried by the motor grader and has upper and lower slots formed therein to slidably receive an upper and a lower slide surface respectively of a slide rail arrangement which is secured to the back of the moldboard. A hydraulic jack is attach... | 10/05/1976 |
| 3976146 | Grader A grader of the type including a longitudinal overlying boom connecting a front wheel assembly to a rear tractor unit with a blade carrier frame assembly positioned intermediate the front wheels assembly and the tractor unit. This grader is characterized ... | 08/24/1976 |
