Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| RE39889 | Implement for preparing seedbeds An implement for preparing seedbeds and lawns includes a main frame member upon which are mounted scarifying teeth to penetrate the soil and tines which work the soil and prepare the final grade after the soil has been scarified. A subframe is pivotally mounted on t... | 10/23/2007 |
| 7255179 | Cultivator sweep assembly A cultivator sweep assembly having a sweep adapted for releasable attachment to a shank of a mobile agricultural apparatus. The sweep assembly includes a sweep having a more narrow profile, and a coupling attached to a tapered end portion of the shank and disposed b... | 08/14/2007 |
| 7100350 | Haying machine A haymaking machine including a frame carrying at least one pair of rotors connected to carrying arms that may be moved from a working position, in which they are substantially horizontal, to a transport position, in which they are substantially vertical, and vice-v... | 09/05/2006 |
| 6990838 | Skid steer attachment lock A skid steer attachment lock for preventing the theft of a tool attached to a skid steer loader. The device comprises of an extendable hollow shaft having a first and second opposite ends, wherein the first and second opposite ends are open and adapted to respective... | 01/31/2006 |
| 6854526 | Walk-behind agricultural working machine A walk-behind working machine has a machine body and a wheel mounted on the machine body for undergoing rotation to move the walk-behind working machine along a ground surface. A cultivator device is mounted on the machine body for cultivating the ground. A working ... | 02/15/2005 |
| 6757995 | System and method for coupling excavation equipment components A system for coupling excavation equipment components is provided. The system includes a retainer pin having first and second detents which are extendable axially from a surface of the retainer pin, in response to rotation of a valve seated at least partially within... | 07/06/2004 |
| 6336511 | Tillage implement with automatic transport lock release A forwardly folding tillage implement carries a number of ground engaging tools on a tool gang frame disposed to the rear of a carrier frame. A rockshaft is disposed between the carrier frame and the tool gang frame and is movable between four rotated pos... | 01/08/2002 |
| 6012535 | Mounting arrangement for a ripper shank This invention provides a mounting arrangement for a ripper shank that is mounted in a channel defined in a ripper frame. A pair of piston members are mounted in the frame on opposite sides of the ripper shank. The piston members are urged into engagement... | 01/11/2000 |
| 6012648 | Apparatus and method for locking a spray boom A boom lock assembly is disclosed. The boom lock assembly locks a boom in a boom saddle and includes a lock mounting frame, a boom lock, and a boom lock actuator. The lock mounting frame is attached to the boom saddle frame. The lock mounting frame includ... | 01/11/2000 |
| 5813473 | Adjustable flip-up disk mountain assembly A disk support bracket assembly including a cross tube bracket and a disk shank support bracket pivotally connected to the cross tube bracket to allow the disk support bracket to pivot between a working position wherein the bracket bottoms against the cro... | 09/29/1998 |
| 5806605 | Implement for preparing seedbeds An implement for preparing seedbeds and lawns includes a main frame member upon which are mounted scarifying teeth to penetrate the soil and tines which work the soil and prepare the final grade after the soil has been scarified. A subframe is pivotally m... | 09/15/1998 |
| 5787993 | Farm implement, with multi-position settings Many openers are mounted on the lateral tool-bar of a farm implement. For crop and fertilizer change, different spacings along the tool-bar are required for the openers. Multi-position tool-mounting structures are provided, for each opener as required. Ea... | 08/04/1998 |
| 5685245 | Planter unit A planter row unit having a frame with a first unitary rigid plate and structure for attaching a soil engaging component in an operative position on the first unitary rigid plate and first structure cooperating between a towing frame that is movable in a ... | 11/11/1997 |
| 4219947 | Plow or digging machine automatic blade adjusting and locking system A plow apparatus for laying cable, pipe, tile and the like underground having a blade with an upwardly extending shank portion for support. A blade holder connects the shank to a plow-pulling crawler tractor and the holder has an opening therein to receiv... | 09/02/1980 |
