| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Strip-till seed bed preparation apparatus | US877216 | 1992-05-01 | US5333694A | 1994-08-02 | David C. Roggenbuck; Paul Roggenbuck; Vincent Roggenbuck |
| Seed bed preparation apparatus for the no-till preparation of longitudinal strips of soil for the planting of seeds in longitudinal rows including plurality of laterally spaced apart gang assemblies which are individually mounted on a draft vehicle such as a tractor or the like. Each gang assembly includes a main frame, adapted to the coupled to the draft vehicle, swingably mounting a chassis which follows the contour of the land via rotatable depth wheels which mount a forward, surface soil cutting disk for cutting a slot in the surface soil. A vertical tillage blade is received in the slot cut by the cutting wheel and includes an under surface soil lifting tillage point for lifting and partially breaking up strip of soil as the apparatus forwardly moves. A pair of rotatable soil crumbling disks are mounted on the chassis, parallel to the tillage blade, on opposite side of the blade for containing and further crumbling the portion of the lifted strip of soil between the disks and the blade. | ||||||
| 162 | Device for working the ground | US848978 | 1992-06-15 | US5259460A | 1993-11-09 | Johann Evers |
| A device for working the ground comprising a frame and a plurality of discs. Each disc is rotatably mounted on a shaft which is provided on the free end of a pivotable standing shaft. In order to prevent jamming of the discs by earth thrown up by adjacent discs, each standing shaft is placed on the concave side of its associated disc. The shafts are inclined relative to the ground, thus providing an improved working of the ground. The spacing between adjacent discs is adjustable as is the orientation of the discs. | ||||||
| 163 | Implement lock-up system with shock-absorbing cushion springs | US729358 | 1991-07-12 | US5165486A | 1992-11-24 | Gregory L. Davidson |
| An automatic implement lock-up system with shock absorbing cushion springs for releasably raising and lowering implements mounted to a vehicle. An implement is pivotally attached to a vehicle mounting bracket via an implement support arm. A lock-up bracket is mounted to the implement support arm. A cast swivel is pivotally mounted to the lock-up bracket. A support rod is pivotally attached at a first end to the vehicle mounting brackets and extends through an opening in the cast swivel, whereby the support rod advances freely through the cast swivel when the implement support arm is raised. A support rod spring surrounding the support rod at a location between the vehicle mounting bracket and the cast swivel, whereby the support rod spring provides downward pressure on the implement support arm. A cushioning spring assembly is mounted to the second end of the support rod with an attached cushioning spring surrounding the support rod, interposed between and substantially adjacent to the cushioning spring assembly and the cast swivel. The cushioning spring advances away from the cast swivel when the implement support arm is raised, exposing a portion of the support rod. A lock-up assembly is pivotally attached to the lock-up bracket, whereby a lock-up tensioning spring is engaged to interpose a lock-up clip between the cushioning spring and the cast swivel on the exposed portion of the support rod whenever the implement arm is raised, thereby retaining the implement support arm in the raised position. | ||||||
| 164 | Conservation compliance tillage tool | US688471 | 1991-04-22 | US5156216A | 1992-10-20 | Michael D. Van Mill |
| A conservation tillage tool including a frame disposed to support a number of soil working implements in sequence. The frame is supported by ground wheels attached to the rear section of the frame. The wheels are movable with respect to the rear section of the frame to move the frame between a raised transport position and a number of lowered working positions. A hitch attached to a tractor supports the front section of the frame, and a pivotally attached tongue interconnects the front section and the hitch. A leveling mechanism interconnects the rear section, the front section and the pivotally attached tongue. The leveling mechanism is a four-bar linkage that applies a force at the pivotal connection of the tongue to the front section as the wheels move to raise or lower the rear section thereby maintaining the frame substantially level with respect to the ground. | ||||||
| 165 | Subsoil plow point | US566197 | 1984-03-13 | US4538689A | 1985-09-03 | William J. Dietrich, Sr. |
| An improved plow point such as used on a chisel plow has a forward tooth for breaking the soil. Wings extend outwardly and rearwardly of the tooth portion of the tool at a shallow angle. That is, the leading edges of the wings slope downwardly and slightly rearwardly from the tooth. After the tooth breaks the soil, the wings raise, twist and turn the broken deep soil. This lifting action provides aeration of the soil. The wings also bring up some deep soil and leave large chunks of soil that become mellow due to the freezing and thawing cycles during the winter. The outboard rear edge of each wing may be turned slightly downward which enhances the twisting motion of the soil. All of this is done without creating a plow sole. | ||||||
| 166 | One-pass complete tillage system | US220419 | 1980-12-29 | US4403662A | 1983-09-13 | William J. Dietrich, Sr. |
| The system includes a pull-type frame with a forward line of disc blades widely spaced to part the trash, mix it with soil and displace most of the mixture laterally on top of previously undisturbed soil, thereby creating strips of ground which are alternately cleared and windrowed. At least a second line of disc blades, also widely spaced, is placed to the rear of the first line; and these blades are offset laterally from, and located in the windrows formed by, the discs of the first row, to part and return at least some of the previously cleared trash and previously undisturbed soil back onto the cleared strips while still leaving strips of undisturbed soil with an accumulation of cleared trash on top. Cooperating with the discs are novel plow points located in the undisturbed strips having accumulated layers of cleared trash. In one embodiment, strips of untilled soil are left only between the non-working surfaces of a pair of associated blades (one of the forward line and one of the rear), and in another case, strips are left between the working and the non-working surfaces of associated blades. Plow points are located to till all such str | ||||||
| 167 | Finish tools with mounting bracket therefor | US559897 | 1975-03-19 | US3976145A | 1976-08-24 | Calvin B. Blair |
| An inverted U-shaped bracket is designed to flexibly mount transverse harrow tine supporting bars for independent movement of each other upon longitudinally extending implement carrier arms to permit drag angle adjustment and ability to back up without digging in. | ||||||
| 168 | Scarifier and scraper attachment for a tractor | US45585174 | 1974-03-28 | US3891035A | 1975-06-24 | MILLER LAURENCE B; CROOK JAMES D |
| A three-point hitch scarifier and scaper attachment for a tractor is provided, in which the scarifier teeth are retractable relative to the surface of the ground and to the scraper bucket, so as to permit alternate use of the scraper with or without the scarifying action of the teeth. Simple adjustment means are incorporated in the assembly for changing the angular position of the scraper bucket about the axis of the transverse shaft on which the scarifier teeth are mounted, so as to accommodate the attachment to different site conditions. Interchangeable hydraulic and manual control elements are provided in order that the scarifier teeth may be retracted and lowered by hydraulic means, or mechanically by hand. An over-center, or past-center, toggle linkage is included so that when the scarifier teeth are in their operational position, the linkage is forced against the frame of the attachment by the torque exerted by the teeth. A further over-center, or past-center, toggle linkage is provided in the manual control securely to hold the scarifier teeth up in their retracted position against the force of gravity. The manual control includes a handle which may be shifted to two separate leverage bite positions during the manual operation to facilitate the manual control, and to make it readily accessible to the operator seated in the tractor.
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| 169 | Sod planting attachment | US3752238D | 1971-07-30 | US3752238A | 1973-08-14 | CHILTON G |
| An attachment for conventional seed planters which permits the planting of crop seed in sodded areas which may have been undisturbed for as many as 20 years. The attachment is selfdrafting; that is, no load weight must be applied to bring about proper ground preparation. The essential components are a semirigid curved foot immediately following a fluted disk colter. These are supported below a frame which has provisions for adjusting row width and has connections for standard three-point tractor hitches and corresponding attaching points on a seed planter unit.
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| 170 | Soil tillage apparatus | US39469264 | 1964-09-08 | US3224392A | 1965-12-21 | FISK MELLEN WILLIAM |
| 171 | Sled attachment for supporting multiple purpose plows | US25803D | USRE25803E | 1965-06-22 | ||
| 172 | Combination wheel-mounted disc harrow and tooth drag attachment with tension means therefor | US481560 | 1960-01-26 | US3090448A | 1963-05-21 | HOTCHKISS JR ROBERT J |
| 173 | Harrow | US45209054 | 1954-08-25 | US2859577A | 1958-11-11 | PRESLER JAMES L |
| 174 | Earth working attachment for tractor | US51712855 | 1955-06-22 | US2820405A | 1958-01-21 | PUCKETT HENRY A |
| 175 | Land-leveling and scarifying apparatus | US7099149 | 1949-01-14 | US2700234A | 1955-01-25 | HIGLEY ROLLAND C |
| 176 | Combined scraper and cultivator | US67229033 | 1933-05-22 | US1982038A | 1934-11-27 | ZABDIEL WILLIAMS |
| 177 | Cultivator | US47353330 | 1930-08-07 | US1922219A | 1933-08-15 | WALTER SCHUMANN |
| 178 | Plow | US54146131 | 1931-06-01 | US1867517A | 1932-07-12 | PAULUS LOFSTRAND ALBIN |
| 179 | Chopper attachment for cultivators | US21621827 | 1927-08-29 | US1674551A | 1928-06-19 | HUTCHINS JUNMUS W |
| 180 | Weeder attachment for harrows | US9206826 | 1926-03-03 | US1656788A | 1928-01-17 | HANNA WALTER C; ALBERT HUFF |
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