Row-crop tillage and treating device
Patent 4054007 Issued on October 18, 1977. Estimated Expiration Date: 
October 18, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 18, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2663973 2691353 2734439 2754622 3327786 3357646 InventorAssigneeApplicationNo. 05/677449 filed on 04/15/1976US Classes:47/1.7, MATERIAL DISTRIBUTOR WITH PLANT MANIPULATING, CULTIVATING OR SENSING (E.G., TO POSITION PLANT RELATIVE TO DISTRIBUTOR)111/121, Rotating or orbiting opener172/624.5With parallelogram-type linkageExaminersPrimary: Johnson, Richard J.Attorney, Agent or FirmAbstractAn apparatus for controlling weeds and for treating crops planted in rows has a horizontal frame connected to a transverse, horizontal tool bar of a propelling vehicle by a parallelogram linkage which is maintained in gauged vertical relation to a crop row shoulder surface by a pair of gauge wheels affixed to the frame and rolling along the shoulder surface. A pair of disc blades which may be rotatable if desired are adjustably carried along either side of the crop row shoulder by shafts mounted in the clamps on the frame, the clamps permitting vertical, lateral, and angular positioning of the shafts and disc blades. A pair of spray nozzles may be carried from the rear end of the frame for positioning on either side of the crop row for application of herbicides and other chemicals. | |
