| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 172239000 | DRAFT, PITCH OR GROUND LEVEL RESPONSIVE DEPTH CONTROL | 8 |
| 20100170686 | ASSEMBLY OF A TRACTION VEHICLE AND A SOIL TREATMENT MACHINE - An assembly of a traction vehicle and a soil treatment machine, such as a scrub clearing-plant shredding machine, includes a connecting mechanism including at least one articulated connecting rod of the same length as two other connecting rods forming a deformable parallelogram that maintains a parallelogram configuration, on either side of a closing plane, during vertical upward and downward movements of the soil treatment machine relative to a support arm. | 07-08-2010 |
| 20110030978 | DEPTH CONTROL SYSTEM - A depth control system for a frame mounted to a movement system, wherein the frame is mounted such that the frame can be raised and lowered in relation to the movement system by a depth adjustment system, the depth control system comprising: a depth control support attached to the depth adjustment system and configured to move with the frame during depth adjustment; a depth control arm extending from the depth control support towards a first end of the frame; a frame guide incorporated to the first end of the frame designed to receive the depth control arm; and a locking mechanism adapted to receive and lock the depth control arm in relation to the frame guide such that the depth control support prevents the frame from moving in at least one direction. | 02-10-2011 |
| 20130068489 | Method And Apparatus For Maintaining Farm Implement Level Throughout Vertical Range Of Motion - The present invention provides an operator-controllable system that allows the operator to make initial (and preferably optimal) field operation settings for the towed working tool (“implement”) quickly and easily when hitching the working tool to the towing vehicle, e.g., tractor. Once an initial setup is completed, in operation, the invention, which in one form is a leveling arrangement for the working tool, automatically maintains the optimal operation settings throughout the vertical operational range of the working tool. For example, if the optimal operation settings is a level implement throughout its operating range, the leveling arrangement will maintain the implement level as the implement is raised and lowered. | 03-21-2013 |
| 20130133904 | Row Unit For Agricultural Implement - An agricultural row unit includes a linkage pivotably coupled to an attachment frame, and a row unit frame with a leading end pivotably coupled to the linkage. A hydraulic cylinder is coupled to the attachment frame and the linkage, for urging the row unit frame downwardly toward the soil, and includes a movable ram extending into the cylinder. A hydraulic-fluid cavity is located within the cylinder for receiving pressurized hydraulic fluid for advancing the ram in a direction that pivots the linkage and the row unit frame downwardly toward the soil. An accumulator is positioned adjacent to the hydraulic cylinder and has a fluid chamber containing a diaphragm, with the portion of the chamber on one side of the diaphragm being connected to the hydraulic-fluid cavity in the hydraulic cylinder, and the portion of the chamber on the other side of the diaphragm containing a pressurized gas. | 05-30-2013 |
| 20140166321 | TILLAGE DEVICE FOR AGRICULTURAL MACHINERY OR IMPLEMENTS TO REDUCE COMPACTION CAUSED BY WHEELS IN A FIELD - An attachment for agricultural implements which tills soil compacted by the wheels of the agricultural implement it is attached to. In one arrangement the power and force used to till the soil is gained from the torque of the machine pulling the agricultural implement it is attached to, alternatively the tilling device is independently powered. This arrangement reduces compaction caused by the wheels of row-crop planters through the use of a shank or rolling tines. The tilling device is mounted directly behind wheels of the agricultural implement. The tilling device has the ability to raise and lower into the soil with the engaging and disengaging of the implement. In addition, in its current form it can independently be disengaged from use by raising and locking it up out of the soil, even if the implement remains engaged. | 06-19-2014 |
| 20140262372 | FORWARD FLOTATION DUAL ACTION GROUND PENETRATING DEVICE - An apparatus for maintaining a tillage implement such as a plow at a consistent working depth utilizes a spring biased quadrilateral linkage to maintain the tillage implement in a position having to float forwardly and upwardly from the working depth thereby preventing unwanted flotation of the tillage implement from the working depth until the tillage implement encounters a substantially vertical load. | 09-18-2014 |
| 20140338936 | EARTH WORKING APPARATUS - An earth working apparatus includes a working implement having a first end and a second end. The earth working apparatus also includes a first support supporting the working implement, where the first support also has a first end and a second end. The earth working apparatus further includes a first arm connecting the first end of the working implement to the first end of the first support, and a second arm connecting the second end of the working implement to the second end of the first support. A second support is pivotally coupled with the first support by a torsion coupler. The first arm and the second arm can be pivotally coupled with the first support by a torsion coupler. The second support can be connected to a third support and configured to articulate with respect to the third support between a generally horizontal working orientation and a transport orientation. | 11-20-2014 |
| 20160029541 | Elastic Rubber Suspension for an Agricultural Implement - A suspension assembly for an agricultural implement having a carrier frame, an implement support frame pivotally connected to the carrier frame, and a rubber torsion spring having a drive shaft disposed coaxially within a square tubular housing, with an elastic rubber element captured within the housing and the shaft embedded in and adhered to the elastic rubber element. The torsion spring is connected to the implement support frame. An externally threaded screw has an internally threaded member engaged therewith, the screw being connected to the carrier frame. An adjusting arm has a first portion in driving engagement with the drive element, and has a second portion connected to the threaded member. Displacing the threaded member along the screw provides selectable spring force that adjustably biases the implement support frame away from the carrier frame such that an implement connected to the support frame is pressed against the soil with a selected force. | 02-04-2016 |
