Cultivator row unit with ridger/bedder implement
Patent 4461355 Issued on July 24, 1984. Estimated Expiration Date: 
June 1, 2002. 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.
June 1, 2002. 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 102789 325839 1408902 2330283 2644387 2646739 2815704 3326152 Row-crop tillage and treating device Twin row cultivator InventorsAssigneeApplicationNo. 06/383595 filed on 06/01/1982US Classes:172/156, Spaced rolling with intermediate nonrolling111/124, Shoe opener111/135, Rotating gauge means111/140, Coulter111/152, Shoe opener172/166, Rolling colter172/193, First tool with spaced trailing sweep172/624.5, With parallelogram-type linkage172/722, Earth breaking part and separately attached wings172/736Relatively adjustable earth engaging partsExaminersPrimary: Johnson, Richard J.Attorney, Agent or FirmInternational ClassesA01B 39/00 (20060101)A01B 39/14 (20060101) AbstractAn inter-row crop cultivator for use particularly in severe residue conditions such as in minimum tillage conservation applications is disclosed. A leading gauge wheel providing support and soil surface tracking is immediately trailed by two laterally displaced discs which cut away from the row. Aft of the two cutaway discs and directly to the rear of the gauge wheel is a stabilizing and cutting coulter which prevents side to side sway while cutting and reducing residue ahead of a sweep shank which directly trails the cutting coulter. By severing and dividing the residue, the cutting coulter permits the residue to flow over the sweep and around the shank. The shank is adapted to receive an anhydrous ammonia applicator and knife assembly which may be easily and securely mounted to the shank. A plurality of such inter-row crop cultivators may be mounted on a tool bar. A winged ridger/bedder may be either positioned above the soil on the shank or slid down the shank in contact with the soil for forming the loosened soil and residue into parallel ridges over the newly formed rows in preparing a seed bed for later planting. Various selectively adjustable controls are provided for setting gauge wheel height, stabilizing and cutting coulter height, cutaway disc separation and height, the downward pressure applied to the working implements, and implement deflection cushion tension permitting implement deflection upon impact with an obstruction.Other References
Field of SearchLaterally spaced like tools with intermediate diverse tool (A, B, A)Spaced rolling with intermediate nonrolling With parallelogram-type linkage Vertically adjustable Earth breaking part and separately attached wings Wings integral Relatively adjustable earth engaging parts Tool adjustably connected to standard | |
